Languguage OS 2/Languguage OS II Version 10-94 (Knowledge Media)(1994).ISO/gnu/gcc_260.zip/gcc_260/ChangeLog.4

Text File | 1992-03-05 | 427KB | 10,784 lines

Mon Jan 13 19:12:18 1992  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * unroll.c (find_splittable_givs): When completely unrolling loop,
    use biv initial value stored in splittable_regs instead of
    bl->initial_value, since the later may not be safe.

    * sched.c (schedule_block):  When calculating whether a register
    crosses a call, must do this after registers are killed and before
    new registers are made live.

    * x-rs6000: Define INSTALL as /usr/ucb/install -c.  /etc/install
    (the SYS V version) does not handle -c option as Makefile.in
    intends it.

Mon Jan 13 11:21:24 1992  Michael Meissner  (meissner at osf.org)

    * mips-tfile (parse_stabs_common): Don't relocate N_LBRAC and
    N_RBRAC stabs for compatibility with other stabs implementations.

Mon Jan 13 07:41:32 1992  Michael Tiemann  (tiemann at cygnus.com)

    * cp-decl.c (grokdeclarator): Don't set TREE_PRIVATE here.
    TREE_PRIVATE is only for visibility.
    (start_function): Don't test TREE_PRIVATE here.  #pragma
    interface/implementation should properly handle the case of static
    (i.e. non-public) defns in implementation section now.

Mon Jan 13 07:31:38 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * rs6000.c (output_ascii): The AIX assembler silently truncates
    strings longer than 666 characters, so break them up well before that.

Mon Jan 13 00:26:47 1992  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * c-decl.c (pushdecl): Warn about shadowing at top level any symbol
    that was declared among the function parms.  But don't warn for
    parms in a nested function.
    * tree.c (chain_member): New function.

    * sparc.c (output_return): Handle structure value in all the cases.

    * toplev.c (main): -gstabs+ means use stabs with gdb extensions.

    * fixincludes: Insert #undef NULL before #define NULL.

    * gvarargs.h (va_list): Check some macros to avoid redefinition.

    * tree.h (DECL_PACKED): New macro.
    * c-common.c (decl_attribute): Handle `packed'.
    * stor-layout.c (layout_record): Handle DECL_PACKED.
    * c-parse.y (attrib): Accept `packed' with no arg.

    * c-decl.c (shadow_tag): For useless keyword, just warn.
    (duplicate_decls): Don't preserve volatile bit from old decl
    if that is just a default declaration for abort, exit, etc.

    * cccp.c (do_assert, do_unassert, check_assertion):
    No pedantic warnings in system header files.

    * ultrix.h (SIZE_TYPE, PTRDIFF_TYPE, WCHAR_TYPE): Defined.
    (WCHAR_TYPE_SIZE): Defined.

    * i386.h (HI_REGISTER_NAMES): Add a name for dummy reg 16.

    * dbxout.c (flag_minimal_debug): Make it static.

Sun Jan 12 18:10:46 1992  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * c-lex.c (check_newline): Check #line for `3' meaning system header.
    * cccp.c (output_line_command): Output `3' if system header.
    * c-tree.h (system_header_p): Declare it.
    (ridpointers): Declaration deleted.

    * dwarfout.c (fundemental_type_code): Treat OFFSET_TYPE like integer.
    (type_is_fundamental, output_type): Likewise.

    * optabs.c (expand_float): Abort if FROM has VOIDmode.
    * expr.c (expand_expr, FLOAT_EXPR case): Don't pass a VOIDmode.

Sun Jan 12 16:11:40 1992  Michael Meissner  (meissner at osf.org)

    * mips.h (ASM_OUTPUT_SPACE): If assembler is gas, don't use the
    .space directive, since the table PREDICATE_CODES generates tickles
    a bug.

Sun Jan 12 15:59:41 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * expmed.c: Include real.h.
    (make_tree): Properly handle CONST_INT and handle many more rtl codes.
    (expand_mult_add): Don't do folding here; just call make_tree and fold.
    * Makefile.in (expmed.o): Includes real.h.

Sun Jan 12 12:26:20 1992  Michael Tiemann  (tiemann at cygnus.com)

    * cp-decl.c (store_parm_decls): Finish change started 11 Jan 1992.

    * cp-decl.c (pushtag): Don't set CLASSTYPE_TAGS after
    CURRENT_CLASS_TYPE has been defined.

    * cp-lex.c (check_newline): Set INTERFACE_UNKNOWN if we see a
    #pragma implementation or if it's the toplevel file.

Sat Jan 11 22:04:34 1992  Michael Meissner  (meissner at osf.org)

    * mips.md (fix_truncsfsi2_opt): Delete, since the optimizer will
    strip the clobbers when substituting a register for a cs'ed value,
    unlike GCC 1.
    (fix_truncdfsi2_opt): Likewise.
    (long long shifts): Fix various typos.

Sat Jan 11 15:26:24 1992  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * expr.h (GEN_FCN): Alternate definition if FUNCTION_CONVERSION_BUG.
    * xm-romp.h (FUNCTION_CONVERSION_BUG): Define it.

    * i386.md (cmpstrsi recognizers): Change back to repz.

Sat Jan 11 11:18:32 1992  Michael Tiemann  (tiemann at cygnus.com)

    * cp-decl.c (store_parm_decls): Don't put non-PARM_DECL nodes in the
    list that will become DECL_ARGUMENTS.

    * cp-decl2.c (grokfield): Convert () initialization to =
    initialization in FIELD context.
    * cp-decl.c (parmlist_is_exprlist): Now non-static.

    * cp-decl.c (grokdeclarator): Don't let static class members be
    declared `static' at top-level.

    * cp-decl.c (pushdecl_class_level): Don't use DECL_ASSEMBLER_NAME.

    * cp-decl.c (grokdeclarator): Don't let language linkage interfere
    with declarator grokking--the two are independent.

    * cp-call.c (compute_conversion_costs): Look for constructor or type
    conversions regardless of whether we have CONTRAVARIANCE_HARSHNESS
    or not.  Also, `#if 0' some dead code.

    * cp-method.c (report_type_mismatch): Fix bugs in formatting error
    messages.

    * cp-decl.c (grokvardecl): Verify that when static class members are
    declared at toplevel, the types match their initial declaration.

Sat Jan 11 08:41:24 1992  Fred Fish  (fnf at fishpond)

    * config/m68kv4.h (NO_DOLLAR_IN_LABEL):  Undefine so that the
    default for m68k/SVR4 systems is to use '$', which is more
    widely supported.

Sat Jan 11 10:56:10 1992  Jeffrey A. Law  (law at wombat.gnu.ai.mit.edu)

    * Finish PIC implementation on the 68k
    * output.h (flag_pic): Declare here so that insn-*.c can see it.

    * reload1.c (reload): When compiling PIC ignore REG_EQUIV notes
    which are CONSTANT_P, but are not LEGITIMATE_PIC_OPERAND_P.

    * m68k.md (call, call_value): Make these into define_expands. If
    compiling PIC code, then load the address of the function into a
    register so that we make indirect calls.
    (Non-PIC call, call_value): New define_insns.  These are
    standard call insns.
    (PIC call, call_value): New define_insns which output PIC calls.
    (movsi): Make this into a define_expand.  Legitimize PIC addresses
    if necessary.  Old movsi code is now an unnamed define_insn pattern.

    * m68k.h (GO_IF_LEGITIMATE_ADDRESS case INDIRECTABLE_1_ADDRESS_P):
    Use LEGITIMATE_PIC_OPERAND_P to reject SYMBOL_REFS and LABEL_REFS
    without PIC relocation when compiling PIC code.

    * m68k.c (legitimize_pic_address): New function.  Given an address
    return that address as "legitimized" PIC code.
    (print_operand_address): When generating PIC code, handle PIC
    relocated label_refs just like a PIC relocated symbol_ref.
    (print_operand_address): If -fpic then add ":w" to displacement in
    PIC relocated references.
    (print_operand_address): If -fPIC then add ":l" to displacement in
    PIC relocated references.

Fri Jan 10 18:03:08 1992  Ken Raeburn  ([e-mail])

    * cp-init.c (build_new): Don't allocate header for arrays if no
    destructor is needed.  Also fix broken calculation of array size.
    (build_delete): Don't skip array header if no destructor is needed.

Fri Jan 10 14:54:19 1992  Michael Tiemann  (tiemann at cygnus.com)

    * cp-cvt.c cp-decl2.c cp-expr.c cp-gc.c cp-init.c cp-lex.c cp-parse.y
    cp-pt.c cp-search.c cp-tree.c: Clean up problems found with -Wreturn
    (from rfg).

    * cp-typeck.c cp-tree.c cp-cvt.c cp-lex.c cp-call.c cp-class.c:
    Add (unsigned) casts to all places where native SVr4 compilers
    expect to see unsigned values.

Fri Jan 10 08:34:36 1992  Fred Fish  (fnf at sunfish)

    * m68ksgs.h (REGISTER_NAMES):  Provide separate versions for
    SUPPORT_SUN_FPA defined and not defined.

Fri Jan 10 22:36:41 1992    (Eric Youngdale at [e-mail])

    * Improve I/O performance of gcc on VMS.
    * cccp.c (VMS_open, VMS_fopen, VMS_freopen): New functions.
    (open, fopen, freopen): Define as macros on VMS.
    * toplev.c (VMS_fopen): New function.
    (fopen): Define as macro on VMS.

Fri Jan 10 22:00:50 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * genrecog.c (merge_trees): If two trees both have actions, but
    one adds clobbers and one doesn't, ignore the one that does.

    * genemit.c (gen_split): Say that we are giving the definition number
    in our error message.
    * genrecog.c (fatal): Likewise.
    * genoutput.c (scan_operands): Likewise.

    * caller-save.c: Include expr.h (for gen_move_insn).
    (regno_save_elim): Deleted.
    (init_save_areas): Don't initialize it.
    (setup_save_areas): Don't set it.
    (save_call_clobbered_regs, restore_referenced_regs): Accept mode,
    not spill register.
    (insert_save_restore): Don't do our own register elimination and
    reloading; instead set the insns we make to the desired mode.
    * reload1.c (struct elim_table): New field MAX_OFFSET.
    (reload): Always call init_save_areas.
    Initialize max_offset each pass.
    At each CALL_INSN, create a need for a spill register that will
    be used by caller-save.
    Pass mode for insns to save_call_clobbered_regs instead of a
    spill reg number.
    Call reload_as_needed if we will have to reload the caller-save
    insns, even if nothing else needs reload (unlikely).
    (eliminate_regs_in_insn): Record maximum offset value.
    * Makefile.in (caller-save.o): Includes expr.h.

    * reload.c (find_reloads): CALL_INSNs can't have output reloads.
    * reload1.c (emit_reload_insns): Put any reloads for a CALL_INSN
    in front of any immediately-preceeding USE insns.

    * flow.c (life_analysis): Mark all global regs as live at the end of
    the function.
    (propagate_block): Each call makes all global registers live.
    (mark_used_regs): A RETURN may use the stack pointer and uses all
    global regs.
    * cse.c (cse_insn): A CALL_INSN clobbers any global regs.
    * reorg.c (mark_referenced_resources): Calls used global regs.
    (mark_set_resources): CALL_INSNs clobber global regs.

Fri Jan 10 17:24:06 1992  Michael Meissner  (meissner at osf.org)

    * collect2.c (whole file): Major rewrite to merge in collect3
    functionality which uses GCC to build up the constructor and
    destructor tables, instead of using the assembler.  Also improve
    the support for cross compilers to find the tools.  The old assembly
    language support has been removed.

    * mips-tfile.c (CODE_MASK): Move to mips.h to use with mips-tdump
    also.
    (MIPS_IS_STAB): Likewise.
    (MIPS_MARK_STAB): Likewise.
    (MIPS_UNMARK_STAB): Likewise.

    * mips-tdump.c (various): Changes by Per Bothner to print
    encapsulated stabs, and to shorten the output.

    * mips.h (MIPS_VERSION): Set Meissner version # to 7.
    (cmp2_op): Make cmp2_op a real function instead of just a
    macro to cmp_op.
    (OPTIMIZATION_OPTIONS): -O now sets flag_caller_saves and
    flag_schedule_insns_after_reload.
    (CC1_SPEC): Fix typo preventing -mgpopt from being set if
    optimization.
    (PREDICATE_CODES): Define.
    (USE_COLLECT, EXTENDED_COFF, NO_UNDERSCORES): Delete, not needed in
    GCC 2.00.
    (ASM_INT_OP, ASM_SHORT_OP, ASM_CHAR_OP): Likewise.
    (CODE_MASK): Move from mips-tfile.
    (MIPS_IS_STAB): Likewise.
    (MIPS_MARK_STAB): Likewise.
    (MIPS_UNMARK_STAB): Likewise.

    * mips.c (cmp2_op): Make this a real function, instead of a macro
    pointing to cmp_op.
    (volatile_buffer): New static variable to support .set volatile.
    (mips_move_1word): Do .set volatile/.set novolatile around volatile
    memory references.
    (mips_move_2words): Likewise.

    * mips.md (sne define_split): Fix so that it generates a gtu 0.
    (all set cc define_splits): Remove reload_completed tests.
    (all set cc define_insns): Don't allow 0 as operand 1.

Fri Jan 10 16:40:45 1992  Jeffrey A. Law  (law at wombat.gnu.ai.mit.edu)

    * m68k.md (addsi3, addhi3, subsi3, stack adjustment peepholes):
    Perform small (8 < N <= 16) constant additions and subractions to
    address registers with two addqw (or subqw) instructions.

Fri Jan 10 06:54:22 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * calls.c (expand_call): Check for _longjmp as well as longjmp;
    clean up code a bit and merge with check for setjmp-like names.
    Emit a BARRIER if this is a call to longjmp in addition to
    volatile calls.

Fri Jan 10 02:25:54 1992  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * c-typeck.c (digest_init): Properly return error_mark_node
    after invalid element in array initializer.

    * gcc.c (pexecute): Use `fork' in error message if don't have vfork.

    * Makefile.in: Add .NOEXPORT.

Thu Jan  9 13:36:25 1992  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * expr.c (expand_expr): Handle OFFSET_REF.

    * cse.c (simplify_binary_operation): Never use associative law for
    floating arithmetic.

    * fixinc.svr4: Renamed INCLUDES to INPUT.

    * i386.md (cmpstrsi recognizers): Output repe, not repz.

Thu Jan  9 18:02:34 1992  Dennis P. Glatting  (dennisg at tti)

    * tree.h (CONSTRUCTOR_NAME_FORMAT): Changed name format.  Old format
    was recognized as destructors not constructors.
    * objc-actions.c (build_module_descriptor):
    Null-terminate global_object_name.

Thu Jan  9 10:35:58 1992  Tom Wood  (wood at dg-rtp.dg.com)

    * sdbout.c (sdbout_syms): Don't attempt to output a LABEL_DECL.

Thu Jan  9 08:17:44 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * fold-const.c (merge_component_references): Treat constants as
    unsigned, so we don't get extra sign bits where we don't want them.

Wed Jan  8 19:12:59 1992  James Van Artsdalen  (james at bigtex.cactus.org)

    * reload.c (combine_reloads): Don't use a fixed_reg as an reload
    reg, even if it dies.

    * loop.c (record_giv): Fix typo extracting insn_uid.

Wed Jan  8 15:41:10 1992  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * cpp.texi, gcc.texi: Files renamed.
    * invoke.texi, extend.texi, md.texi, rtl.texi, tm.texi: New subfiles.
    * Makefile.in: Corresponding changes.

    * fixincludes: Renamed INCLUDES to INPUT.

    * m68k.c (notice_update_cc, print_operand): Fix typos.

    * cp-decl.c (expand_static_init): Save and restore current obstacks.

    * c-decl.c (poplevel): Put labels in BLOCK_VARS of top-level block.

Wed Jan  8 12:53:48 1992  Michael Tiemann  (tiemann at cygnus.com)

    * cp-decl.c (expand_static_init): Switch to PERMANENT_OBSTACK during
    expansion.

Wed Jan  8 07:45:58 1992  Tom Wood  (wood at dg-rtp.dg.com)

    * m88kv3.h (STARTFILE_SPEC): SVR3 has *crt0.o files.

    * configure (m88k-*sysv{3,4}): The files are named m88kv{3,4}.

Wed Jan  8 06:01:44 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * romp.md (mftbi): Allow memory in the contraints since there can't
    be an input reload on an insn that uses cc0.

    * cse.c (FIXED_BASE_PLUS_P): Include virtual_incoming_args_rtx.
    (NONZERO_BASE_PLUS_P): New macro.
    (find_comparison, simplify_relational_operation_args): Use
    NONZERO_BASE_PLUS_P instead of FIXED_BASE_PLUS_P when appropriate.

    * m68k.md (peepholes): Don't change around stack adjusts and pushes
    when we are pushing something whose address involves sp.

    * cse.c (simplify_unary_operation): Check for operations on
    integers by looking at mode of OP, not output mode, to avoid
    confusion with FIX operations whose result is an integer.

    * rtl.h ([df]const[012]_rtx): Deleted.
    (const_tiny_rtx): New declaration.
    (CONST0_RTX): Use const_tiny_rtx instead of {d,f,}const0_rtx.
    (CONST1_RTX, CONST2_RTX): New macros.
    * emit-rtl.c ([df]const[012]_rtx): Deleted.
    (const_tiny_rtx): New definition.
    (init_emit_once): Initialize const_tiny_rtx instead of old vars.
    * cse.c (simpify_binary_operation): Use CONST[01]_RTX.
    * varasm.c (immed_real_const_1): Likewise.
    * combine.c (subst): Likewise.
    * reg-stack.c (record_reg_life, stack_reg_life_analysis): Likewise.
    * convex.md, i860.md, m88k.c, spur.md, vax.h, ns32k.md: Likewise.

Tue Jan  7 22:11:17 1992  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * x-i386isc (ENQUIRE_LDFLAGS): New defn: add -posix.

    * protoize.c (_POSIX_SOURCE): Define only if POSIX.

    * m68k.h (FPA_REG_P): Always define this somehow.

    * c-decl.c (c_decode_option): Handle -Wchar-subscripts.
    * c-typeck.c (build_array_ref): Do the real work.

Tue Jan  7 21:15:54 1992  Michael Meissner  (meissner at osf.org)

    * mips.md (branch_zero_false): Use correct mode (CC_0) on
    match_operator.

Tue Jan  7 14:24:45 1992  James Van Artsdalen  (james at bigtex.cactus.org)

    * reg-stack.c (replace_reg): get mode class from a mode, not a reg.

Tue Jan  7 14:16:18 1992  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * reg-stack.c (emit_pop_insn): Fix typo FPmode_reg.

    * protoize.c (longjmp): Don't declare it.

Tue Jan  7 09:47:47 1992  Michael Tiemann  (tiemann at cygnus.com)

    * cp-lex.c (real_yylex): From John Hassey, allocate space for the
    terminating null on wide character literals.

Tue Jan  7 07:41:42 1992  Tom Wood  (wood at dg-rtp.dg.com)

    * m88kv3.h (LIB_SPEC): Add -lg.

Tue Jan  7 06:29:30 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * stor-layout.c (layout_type): Don't over-align a structure
    when strict alignment is not required.

    * rs6000.h (CALL_USED_REGISTERS): r31 should not be marked call-used.

    * rs6000.md (add-and-compare): Fix duplicate operand number.

    * a29k.md (inbyte, inhw): Correct duplicate operand number.

    * fold-const.c (fold, case MULT_EXPR): Simplify (a * (1 << b)).
    * combine.c (subst, case MULT): Likewise.
    (simplify_shift_const, shift cases): Similarly, associate A << B << C.

    * genoutput.c (seen): New array.
    (scan_operands): Give error if an operand number was specified
    twice.  Include pattern number in error message.
    (gen_insn, gen_expand, gen_split, gen_peephole): Initialize `seen'.
    (gen_split, gen_peephole): Add initializations for arrays that
    are copied.

    * optabs.c (expand_unop): Complete recent change; one TARGET was
    not changed to TEMP.

    * expmed.c (expand_mult): Always try multiplication by value and
    by negated value. Fix bug where we don't include the cost of the negate
    when seeing which way is better.  Write proper value in REG_EQUAL
    note.

    * optabs.c (extendtab): Replacement for {zero,sign}_extend_codes.
    (can_extend_p): Use new table and return type is not enum insn_code.
    (gen_extend_insn): Deleted; not used.
    (init_extends): Make like init_flottab: use new table and initialize
    unused entries to CODE_FOR_nothing, not zero.
    * expr.c (convert_move): can_extend_p fails if it returns
    CODE_FOR_nothing, not zero.
    * expr.h (can_extend_p): Add definition.

    * expr.h: Add "extern" to function definitions.

Mon Jan  6 10:12:34 1992  Leonard Norrgard  (vinsci at nic.funet.fi)

    * m68k.c (SUPPORT_SUN_FPA): Conditionalize references to the
    optional Sun 3 Floating Point Accelerator with SUPPORT_SUN_FPA.
    * m68k.h (SUPPORT_SUN_FPA): Likewise.

    * m68k.c (notice_update_cc): New function.
    * m68k.h (NOTICE_UPDATE_CC): Just call notice_update_cc.

        * sun3.h (SUPPORT_SUN_FPA): New define.

Mon Jan  6 16:42:43 1992  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * varasm.c (assemble_global, assemble_label): New functions.
    * objc-actions.c (finish_objc): Call them to define and globalize.
    Use output_constant to reference a class.

    * Makefile.in (install-limits-h): New target.
    (install-headers): Depend on install-limits-h.
    (USER_H): Deleted LIMITS_H.
    (INSTALLED_H): Added limits.h.
    (mostlyclean): Remove tmp-limits.h.
    * limitx.h: New file.

    * x-isc: File deleted.

    * objc-actions.c (build_module_descriptor): Init global_object_name.

    * Makefile.in (collect2): Depend on version.o.

    * protoize.c (PATH_MAX): Definition deleted.  Just test it
    to see if param.h should be included.

    * cse.c (simplify_binary_operation, case MULT): Make a copy
    of the operand when converting 2.0 * X to X+X.

    * reload.c (find_reloads): Refine when we set force_reload and
    better document the cases.

Mon Jan  6 08:22:19 1992  James Van Artsdalen  (james at bigtex.cactus.org)

    * i386.c (output_float_compare): Output only single-pop compare
    if both operands are the FP top of stack reg.
    When comparing FP top of stack with itself, print `%st(0)' as the
    reg name, not `%st'.

Mon Jan  6 12:01:51 1992  Tiggr  (rcpieter at mole.gnu.ai.mit.edu)

    * arm.md (mulsi3): Fixed contraints.

Mon Jan  6 08:21:46 1992  Tom Wood  (wood at dg-rtp.dg.com)

    * m88k-move.sh: Renamed from m88k-movstr.sh.  Rename the generated
    files move*.asm from movstr*.asm to be SVR3-legit.
    * t-m88k, t-m88kluna, t-m88kv4: Use the new names.

    * c-aux-info.c, dbxout.c: Include errno.h as in protoize.c.

    * Makefile.in (BISONFLAGS): Don't use -v since *.output is big.
    (cp-parse.c): Do use -d to create cp-parse.h.
    (cp-parse.o): Don't define PARSE_OUTPUT.
    * x-mips, x-m88kdgux (BISONFLAGS): No -v.

Mon Jan  6 07:54:55 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * genpeep.c (match_rtx): Loop over vectors (e.g., PARALLEL) in the
    natural order so we see an operand before we see a MATCH_DUP referring
    to it.

    * genrecog.c (write_tree_1): Simplify code that writes braces and
    avoid writing them unnecessarily.
    Don't write dead code when last test was unconditional.

    * optabs.c (expand_binop, expand_twoval_binop, expand_unop):
    Standardize loop for wider mode.
    (emit_cmp_insn, emit_float_lib_cmp): Likewise.
    (expand_binop): Correct how extensions are done: use convert_to_mode,
    don't use SUBREG for non-integer operations, and remove test
    involving HOST_BITS_PER_INT.
    (expand_unop): Similar changes; make code closer to expand_binop.
    Handle failure of recursive call when expanding.  Fix incorrect use
    of TEMP when widening.  Use SUBREG for NEG and NOT.

    * reload.c (find_reloads_address_part): New function.
    (find_reloads_address): Call it instead of push_reload when we are
    reloading a PLUS or a constant.

Sun Jan 5 18:34:15 1992    (Eric Youngdale at [e-mail])

    * make-cc1.com:  Change file names from cp-tab.* to cp-parse.*.

Sun Jan  5 18:06:11 1992  Michael Tiemann  (tiemann at cygnus.com)

    * cp-decl.c (grokdeclarator): Correctly grok REFERENCE_TYPE
    parameters when TYPE_REFERENCE_TO is automagically converted.

Sun Jan  5 05:19:19 1992  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * tree.h (CONSTRUCTOR_NAME_FORMAT): New macro.
    * objc-actions.c (build_module_descriptor): Make constructor name
    from name of file or of a global that it defines.
    Return constructor name.
    (finish_objc): Use name returned as name to call.

    * protoize.c (GUESSPATHLEN): New macro.
    (main): Use that for initial buffer size for getcwd.
    * dbxout.c (getwd, getcwd, GUESSPATHLEN): Define as in protoize.c.
    (dbxout_init): Call getcwd in loop, as in protoize.c.
    * c-aux-info.c (getwd, getcwd, GUESSPATHLEN): Define as in protoize.c.
    (gen_aux_info_record): Call getcwd in loop.
    * i386v.h, i386vgas.h (MAXPATHLEN): Don't define.

    * svr3.h (LINK_SPEC): Don't pass -K.

    * reload.c (find_reloads): Do record in non_reloaded_operands if no -O.

    * m68k.c (output_function_prologue, output_function_epilogue):
    Add braces and adjust conditionals to fix balance and indentation.

    * objc-actions.c (build_module_descriptor): Mark __objc_file_init used.

Sat Jan  4 13:27:40 1992  James Van Artsdalen  (james at bigtex.cactus.org)

    * protoize.c: unprotoize getcwd & fork declarations.
    (edit_fn_declaration): use "VOLATILE", not "volatile".

Sat Jan  4 20:19:41 1992  Michael Meissner  (meissner at osf.org)

    * mips.h (set_volatile): Add new global variable reference.

    * mips.c (set_volatile): New global variable to keep track of the
    number of .set volatile's done.  At present, no code actually turns
    this on.
    (mips_move_1word): Use %. instead of putting const0_rtx into an
    unused operator and using %z to get to $0, which is hardwired to 0.
    (mips_move_2words): Likewise.
    (override_options): Allow %., %{, and %} punctuation.
    (print_operands): Add support for %. to get the current name of
    register 0, %{ to turn on .set volatile, and %} to turn on .set
    novolatile.
    (function_epilogue): Give an error if .set volatile was left on in
    the epilogue.
    (mips_asm_file_start): Don't emit .set nobopt unless we are filling
    branch delay slots.

    * mips.md (set reg on comparison define_splits): Don't allow the
    scheduler to split any set of a comparision insns, to work around a
    bug in sched.c.

Sat Jan  4 23:01:41 1992  Jeffrey A Law  (law at planet.super.org)

    * m68k.c (output_function_prolog): Decrement (instead of
    increment) num_saved_regs when a frame pointer is needed.
    (the link/unlk will restore the frame pointer register)

Sat Jan  4 11:11:24 1992  Dennis P. Glatting  (dennisg at tti)

    * next.h (WCHAR_TYPE, WCHAR_TYPE_SIZE): #undef before defining.

Sat Jan  4 07:40:25 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * expr.c (convert_to_mode): Correctly zero-extend a constant into
    a mode whose size is twice the host int size.

    * machmode.h (enum mode_class): Add MAX_MODE_CLASS.
    (GET_CLASS_NARROWEST_MODE): New macro.
    (byte_mode, word_mode): Add declarations.
    * caller-save.c (choose_hard_reg_mode): Use GET_CLASS_NARROWEST_MODE.
    * combine.c (make_extraction): Don't use explicit QImode and SImode.
    * cse.c (simplify_unary_operation): Integer CONST_DOUBLEs have
    VOIDmode, not DImode.
    (simplify_binary_operation): Remove explicit DFmode reference.
    * expmed.c (init_expmed): Don't make our own copy of word_mode.
    (store_bit_field, extract_bit_field): Remove explicit
    QImode reference; don't recompute word_mode.
    (store_fixed_bit_field, {store,extract}_split_bit_field): Don't
    recompute word_mode.
    (emit_store_flag): Likewise.
    (extract_fixed_bit_field): Replace explicit mode references with a
    loop on modes; don't recompute word_mode.
    * expr.c (convert_mode, move_block_{to,from}_reg, use_regs): Don't
    recompute word_mode.
    (emit_push_insn, do_jump_by_parts*): Likewise.
    (push_block): Remove explicit QImode reference.
    (get_inner_reference): Use mode_for_size.
    * emit-rtl.c (restore_reg_data): Make unused regs word_mode.
    (operand_subword): Don't recompute word_mode.
    * fold-const.c (optimize_bit_field_compare): Likewise.
    (merge_component_references): Likewise.
    * flow.c (mark_set_1, mark_used_regs): Likewise.
    * loop.c (combine_movables): Use GET_CLASS_NARROWEST_MODE.
    * optabs.c (expand_binop): Replace SImode references in multi-word
    multiply with the mode used for each subpart.
    (expand_binop, expand_unop): Don't recompute word_mode.
    * reg-stack.c (reg_to_stack): Use GET_CLASS_NARROWEST_MODE.
    * reload.c (find_equiv_reg): Check for MODE_FLOAT, not SFmode/ DFmode.
    * rtl.c (class_narrowest_mode, byte_mode, word_mode): Define.
    (init_rtl): Initialize them.
    * sched.c (attach_deaths): Don't recompute word_mode.
    * stor-layout.c (mode_for_size): Use GET_CLASS_NARROWEST_MODE.
    (get_best_mode): Likewise.
    Don't recompute word_mode.
    * unroll.c (unroll_loop): Replace default of SImode with word_mode.

    * calls.c (calls_alloca): Don't recurse on BLOCK_SUPERCONTEXT.

Sat Jan  4 03:42:09 1992  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * protoize.c (pointer_type): Use char * if non-ANSI.
    (const_pointer_type): Likewise.
    (malloc, realloc): Declare to return pointer_type.
    (setjmp): Don't declare, to avoid trouble with macro defns.
    (const): If not ANSI, define as empty macro.

Sat Jan  4 00:59:53 1992  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * sparc.c (legitimize_pic_address): When converting a symbol_ref,
    use an extra temp reg when -fPIC, and add a REG_EQUAL note to the
    insn referencing the global offset table.  This allows loop to
    optimize these PIC sequences.

Fri Jan  3 20:29:57 1992  James Van Artsdalen  (james at bigtex.cactus.org)

    * i386.md (return): Always output return insns.

    * i386.h (FUNCTION_PROLOGUE): If the last nonnote insn in a function
    is a BARRIER, don't output a function epilogue.

Fri Jan  3 12:43:09 1992  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * t-decrose, t-decstatn, t-encrose, t-i386rose, t-mips (ALL):
    Use libgcc.a, not libgcc.

    * protoize.c (STRINGIFY): Provide non-ANSI alternative definition.

    * c-decl.c (get_parm_info): Keep non-parms in the parm list.

    * stmt.c (cost_table): Now short.
    (estimate_case_costs): Handle that.

    * Makefile.in (float.h, *protoize.1, gcc.xtar.Z):
    Make temp files, then rename.
    (clean): Delete those temp files.

    * Makefile.in (c-parse.c): Don't use -d, since cp-parse.output is big.

Fri Jan  3 10:32:31 1992  Michael Tiemann  (tiemann at mole.gnu.ai.mit.edu)

    * Makefile.in (cp-parse.c): Add missing -o flag.

Fri Jan  3 08:21:04 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * reg-stack.c: Complete last change (renaming DFmode_reg).

    * expmed.c (init_expmed): Pass dummy pointer to number of clobbers to
    recog so it can let us see patterns that need added clobbers.

Fri Jan  3 07:54:32 1992  Tom Wood  (wood at dg-rtp.dg.com)

    * c-decl.c (implicitly_declare): Record whether this is an implicit
    declaration before setting IDENTIFIER_IMPLICIT_DECL.

Thu Jan  2 21:17:12 1992  Michael Meissner  (meissner at osf.org)

    * mips.c (compute_frame_size): Don't count FP registers twice.

Thu Jan  2 14:59:55 1992  Michael Tiemann  (tiemann at hal)

    * cp-lex.h: Renamed from cp-parse.h.  Now cp-parse.h is the file
    created by bison from cp-parse.y.
    * Makefile.in: reflect this naming change.

Thu Jan  2 12:37:32 1992  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * objc-actions.c (build_obj_method_call): Typo in NEXT case.

    * next.h (HAVE_ATEXIT): Defined.

    * c-decl.c (duplicate_decls):
    No error if override decl that has DECL_BUILT_IN_NONANSI.

    * Makefile.in (c-parse.c): Don't use -o, since cp-parse.output is big.

    * Makefile.in (protoize, PROTOIZE): Delee these 2 new targets;
    `protoize' was redundant.

    * c-typeck.c (build_function_call): If the fn is volatile,
    make a pointer-to-volatile-function type pointer.
    * calls.c (expand_call): Handle calls to such pointers as volatile.

    * expmed.c (init_expmed): Pass all 3 args to `recog'.

    * varasm.c (output_constant): For REAL_TYPE, mode_for_size arg is bits.

    * sparc.md (storing SF into mem at symb addr): Fix typos.

    * protoize.c (my_access, my_stat, my_execvp, my_link, my_unlink):
    (my_open, my_chmod): Macros that run access, stat,... with casts.
    Renamed from former POSIX-only macros and made unconditional.
    All calls to these functions also renamed.

    * m68k.h (LEGITIMATE_PIC_OPERAND_P): Undo change below,
    thus making the behavior really change to accept all CONST_DOUBLE.

    * libgcc1.c, libgcc2.c: Renamed from gnulib1.c, gnulib2.c.
    * gcc.c (link_command_spec): Link with libgcc.a.
    * Makefile.in (libgcc): Rename targets and variables from gnulib.
    * *.h, t-*, x-*: Rename refs to those symbols and files.
    * expr.c (LIBGCC_NEEDS_DOUBLE): Renamed from GNULIB_...

    * m68k.c (symbolic_operand): Reject all CONST_DOUBLE.
    * m68k.h (SELECT_RTX_SECTION): Use LEGITIMATE_PIC_OPERAND_P.
    (LEGITIMATE_PIC_OPERAND_P): Reject the CONST_DOUBLEs
    that symbolic_operand used to accept.

Thu Jan  2 21:06:13 1992  James Van Artsdalen  (james at bigtex.cactus.org)

    * protoize.c (is_id_char,free_def_dec,check_aux_info):
    Don't declare them `inline'.
    (save_def_or_dec,munge_compile_params,find_extern_def,check_source,
    scan_for_missed_items): Use alloca instead of variable length arrays.

    * Makefile.in (protoize,unprotoize): Get $(LIBS) for alloca.

Thu Jan  2 21:40:52 1992  Jeffrey A Law  (law at b115.super.org)

    * sparc.h (OPTIMIZATION_OPTIONS): Enable caller-saves for -O2
    and higher optimization levels.

Thu Jan  2 06:46:56 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * final.c (final_scan_insn): Compare debug_info_level with entries in
    its enum, not with integers.

    * reg-stack.c ({SF,DF}mode_reg): Deleted.
    (FP_mode_reg): New array, indexed by register and by mode.
    (reg_to_stack): Replace initialization of old vars with initialization
    of FP_mode_reg.
    (replace_reg): Use new array.

    * romp.c, romp.h, romp.md: Rename symbolic_operand to
    romp_symbolic_operand.

    * emit-rtl.c (init_emit_once): Create virtual registers before the
    structure value regsisters, since the latter might use the former.

    * varasm.c (output_constant): Fix typo: missing arg to expand_expr.

    * vax.md (call_pop, call_pop_value): Use correct register number for
    stack pointer.  Add new patterns for case of zero args.

Thu Jan  2 08:12:59 1992  Fred Fish  (fnf at sunfish)

    * x-amix:  Minor changes to some comments.
    * x-amix (CCLIBFLAGS, GNULIB2_CFLAGS, XCFLAGS):  Remove definitions.
    * x-amix (manext):  Add definition.

Thu Jan  2 11:14:28 1991  Ken Raeburn  ([e-mail])

    * fold-const.c (fold, case PLUS_EXPR): If association permits
    reduction to var+0, convert var to the desired type before returning
    it.

Wed Jan  1 10:37:50 1992  Michael Tiemann  (tiemann at cygnus.com)

    * expr.c (convert_move): When GET_MODE_BITSIZE (TO_MODE) >
    BITS_PER_WORD, check that it's also > GET_MODE_BITSIZE (FROM_MODE).

    * expr.c (expand_expr): In CONSTRUCTOR case, preserve
    MEM_IN_STRUCT_P when creating a new target when TARGET and EXP might
    not be independent.

Wed Jan  1 18:32:03 1992  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * c-parse.y (parmlist_1): Accept `PARMS; PARMS'.
    (parmlist_or_identifiers_1): Likewise.  Also use plain parmlist_2.
    Delete the ([names] decls) syntax.
    (defn_parms, defn_parmlist_2): Deleted.
    * c-decl.c (get_parm_info): Put parm decls into original order.
    Don't nreverse the original decls list.
    (pushdecl, duplicate_decls): Avoid error for forward parm decl.
    (clear_parm_order): New function.
    (push_parm_decl): Record original order of parms.

    * c-decl.c (struct binding_level): New slot subblocks_tag_transparent.
    (pushlevel): Use that, not ->parm_flag.
    (start_function): Set that slot.

    * config.sub: Always distinguish between amix and sysv4.
    Convert commodore to cbm and digital to dec.

    * m68k.md (stack adjust then push SI): New peephole.

    * m68k.h, fx80.h (WCHAR_TYPE): Use precisely "long int".
    * sun3.h (WCHAR_TYPE, WCHAR_TYPE_SIZE): Undef before defining.

    * cexp.y (yylex): Use LONG_TYPE_SIZE, not INT_TYPE_SIZE.
    (LONG_TYPE_SIZE): Add default definition.

    * objc-actions.c: Declare index and rindex.
    (build_module_descriptor): Simplify last change.
    Use a fixed name for the initialization function.
    (init_objc): Don't do constructor here.
    (finish_objc): Do it here, with proper name if not NEXT_OBJC_RUNTIME.

    * protoize.c: Unprotoized.
    (edit_file): Improve message in -n case.

    * Makefile.in (LANGUAGES): Add proto.
    (C, C++, OBJC, OBJECTIVE-C): Aliases for l.c. targets.
    (PROTOIZE, protoize, PROTO): Aliases for proto.
    (rest.encap): Delete dep `proto'.

Wed Jan  1 15:07:41 1992  Michael Meissner  (meissner at osf.org)

    * mips.md (extend*): Use gen_lowpart to make the SUBREG, rather than
    doing it wrong by hand.  If not optimizing, make sign extends from
    memory not force the operand into a register first and do two
    shifts -- combine already does this when optimizing.
    (copyright): Add 1992 to list of years the file was modified.

Wed Jan  1 06:10:01 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * reload1.c (reload): When forcing an illegitimate constant into
    memory, use mode of SET_DEST in case constant is VOIDmode.

    * stmt.c (expand_end_case): Pass index type to emit_case_nodes instead
    of unsigned flag.
    (node_has_{low,high}_bound): Accept INDEX_TYPE as an argument and see
    if the a node value is at the limit of values of the type.
    (node_is_bounded): Accept INDEX_TYPE and pass to above functions;
    always call them.
    (emit_case_nodes): Accept INDEX_TYPE instead of UNSIGNEDP as arg;
    pass index type to recursive calls and to calls to bound checking
    functions.

    * varasm.c (assemble_integer_zero): Deleted.
    (assemble_integer, assemble_real): New functions.
    (output_constant_pool, output_constant): Use new functions.
    * final.c (end_final, profile_function): Likewise.

    * calls.c (calls_alloca): Don't interpret operands that are RTL as if
    they were trees; check args of nested CALL_EXPR for alloca calls.

Wed Jan  1 16:51:30 1992  Fred Fish  (fnf at fishpond)

    * Makefile.in (manext): Include the '.' character.
    (mandir): Don't use manext.
    (install-man, uninstall): Change uses of manext.

Wed Jan  1 21:31:01 1992  Ron Guilmette  (rfg at ncd.com)

    * i860.md (cmpeqsi, cmpltsi, cmpgtsi):  Made control flow more obvious.
    (cmpnesi, cmplesi, cmpgesi):  New patterns.
    (cmpgeusi, cmpleusi):  Fixed bug in compares against zero.

Tue Dec 31 11:16:37 EST 1991   Dennis P. Glatting (...!uunet!tti!dennisg)

    * objc-actions.c (build_module_descriptor): Emit a constructor
    function.  Constructor function calls a ObjC run-time routine passing
    a pointer to the module's module structure.
    (init_objc): Call different constructor function if not Next.
    (build_selector_translation_table): Don't give a selector global scope.
    Changed in construction of decl_specs.

Tue Dec 31 18:06:23 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * genrecog.c (add_to_sequence): Clear PREDS for "const_int_operand".
    (same_modes): Properly check when we should ignore a mode test.

    * reload1.c (emit_reload_insns): Only change spill_reg_store for
    output reloads.
    Clear spill_reg_store when we did an input reload to a spill register.
    (delete_output_reload): Use single_set.
    (count_occurrences): Don't count use which is SET_DEST.

Tue Dec 31 16:51:37 1991  Michael Meissner  (meissner at osf.org)

    * mips.h (MIPS_VERSION): Change Meissner version # to 6.
    (ASM_FINAL_SPEC): Don't pass -d and friends to mips-tfile.
    (CONSTANT_ALIGNMENT): Align constructors on word boundaries.

    * mips.md (extend*): Replace sign extension insns with a
    define_expand that converts the expansion into the appropriate
    shifts.  Add insns that do sign extension from memory, which the
    optimizer will utilitize if the thing being sign extended really
    comes from memory.  This allows the shifts to compete for CSE, at a
    potential cost of generating worse code if reload spills a HI or QI
    register to the stack.
    (sne define_split): Instead of using a constant 0 as the second
    argument to the slti instruction, use a hard coded regisiter 0.

    * mips-sysv.h (MD_STARTFILE_PREFIX): Define to point into the
    directory where the MIPS compilers live.
    (LIB_SPEC): Add crtn.o after all libs.
    (STARTFILE_SPEC): Use crt1.o, not crtn.o.
    (MACHINE_TYPE): Correct typo, this is System V, not BSD.
    Changes are from Ron Guilmette (rfg at ncd.com).

    * configure (mips-*-sysv): Correctly use mips-sysv.h instead of
    mips.h.  Change is from Ron Guilmette.

Tue Dec 31 16:51:37 1991  Michael Stump  (mrs at charlie.secs.csun.edu)

    * t-decrose, t-decstatn, t-encrose, t-i386rose, t-mips: Remove
    collect2 from EXTRA_PASSES, as collect2 does not need installing as
    collect2.  Also, change the symlink back to a hard link.

    * Makefile.in: Add collect2 to STAGESTUFF as it is something that
    needs removing or moving to stagen, but it should not be installed.

Tue Dec 31 15:47:50 1991  Michael Tiemann  (tiemann at hal)

    * combine.c (simplify_comparison): Swap evaluation of OP0 and OP1 so
    the lattern can use the result of the former.

    * conditions.h: In comments, refer to `tm.h', since `tm-' is no
    longer the form used for these files.

Tue Dec 31 11:45:26 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * cp-lex.c (lineno, finput): Decls deleted.

    * global-alloc.c (find_reg): New arg RETRYING.
    (retry_global_alloc, global_alloc): Pass that arg.

    * Makefile.in (*protoize, *protoize.o): Compile with CC.
    * protoize.c: Include config.h, not tconfig.h.
    Always define _POSIX_SOURCE.

    * convex*.h (CPP_SPEC): !ansi controls _POSIX_SOURCE, _CONVEX_SOURCE.
    * conv1*.h, conv2*.h: Files deleted.

    * m68k.h, fx80.h (WCHAR_TYPE, WCHAR_TYPE_SIZE): Defined.

Tue Dec 31 08:08:32 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * cexp.y (yylex): Record the parsed characters when dealing with
    multibyte characters.

Mon Dec 30 17:13:30 1991  James Van Artsdalen  (james at bigtex.cactus.org)

    * i386.md (mulhi3,mulsi3): If a multiply by constant 128, use the
    two operand multiply instead of three operand form: the AT&T
    assemblers generate incorrect object code for the latter.

Mon Dec 30 17:39:36 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * jump.c (jump_optimize): Complete last change: use expand_and result.

    * reload1.c (emit_reload_insns): Check if reload_in needs a secondary
    reload if we have an in-out reload, since it might have been the
    output the needed the secondary reload.

    * cse.c (simplify_unary_operation): Mode of integer CONST_DOUBLE is
    VOIDmode, not DImode.

    * fold-const.c (fold, case COND_EXPR): Make an ABS_EXPR when the
    comparison is LE_EXPR or LT_EXPR.

    * calls.c (calls_alloca): New function.
    (expand_call): Preexpand any argument that contains a call to alloca
    if this call will use the stack.

    * rs6000.h (DATA_SECTION_OP): Make result a string to avoid compilation
    error.

    * rs6000.h, sparc.h, sun2o4.h, sun3.h (WCHAR_TYPE_SIZE): Fix
    incorrect definition.

Mon Dec 30 16:10:46 1991  Michael Meissner  (meissner at osf.org)

    * mips.h (CC1_SPEC): Complete change deleting -mnogpopt and -mngpopt
    in favor of -mno-gpopt.

Mon Dec 30 11:32:05 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-class.c (build_vtable): If we're doing #pragma interface
    and the interface is known, set TREE_PUBLIC, regardless of
    TREE_EXTERNAL settings.

    * cp-decl.c (make_temporary_for_reference): Don't call
    `convert_pointer_to', since the type may not be an aggr type.

    * cp-decl.c (finish_decl): Now takes 4th arg NEED_POP.
    All callers changed.

    * cp-class.c (permanent_obstack): Declare it.
    (add_method): push and pop obstacks before changing out of/into
    temporary allocation.
    * cp-decl.c (implicitly_declare): Add
    push_obstacks_nochange/pop_obstacks around changes out of/into
    temporary allocation.
    (shadow_tag,xref_tag,start_decl,finish_decl): Ditto.
    * cp-decl2.c (grokfield,get_temp_name): Ditto.
    * cp-except.c ({ansi_}lookup_exception_object): Ditto.
    * cp-lex.c (get_time_identifier): Ditto.
    * cp-tree.c (build_exception_variant): Ditto.
    * cp-typeck.c (mark_addressable): Ditto.

    * cp-decl.c (grokdeclarator,maybe_build_cleanup): Delete calls to
    preserve allocation status.  Now handled by callers.

Mon Dec 30 01:44:21 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * c-lex.c (yyprint): Function moved here.
    * c-parse.y, objc-parse.y: Moved from here.

    * Makefile.in (c-parse.c, objc-parse.c, cp-tab.c, cexp.c):
    cd to srcdir to run Bison.

    * c-lex.c (check_newline): Get rid of #ident pedantic warning.
    * cccp.c (do_ident): Put it here.
    Don't warn if in system header file.

    * cccp.c (main, finclude): Warn if file ends in backslash-newline.

    * next.h (WCHAR_TYPE, WCHAR_TYPE_SIZE): New definitions.

    * global-alloc.c (find_reg): Kick out local regs if that helps.
    (global_alloc): Set up vars local_regs_live_length, local_regs_n_refs.

    * protoize.c (do_processing): Fix setting syscalls_absolute_filename.

    * configure (m68k-*-sysv4*, m68k-*-amix*): New alternatives.
    * config.sub (*-commodore): Default OS to Amigados.
    (-amix*): Allow this as input.
    (amiga): New abbreviation.

    * sparc.c (output_function_epilogue): Skip unimp differently in leaf.
    Use jmp insn rather than separate add.
    (output_return): Skip unimp here too.
    * sparc.md (return "peepholes"). Handle skipping the unimp.

    * fold-const.c (fold, optimizing 2*EXPR): Use save_expr.

    * varasm.c (make_decl_rtl): Permit initializer for local explicit reg.

    * c-decl.c (kept_level_p):  Changed to also return TRUE for binding
    levels which contain only tagged type declarations.

    * calls.c (expand_call): Cleaned up prev change.

Mon Dec 30 11:29:47 1991  Michael Tiemann  (tiemann at mole.gnu.ai.mit.edu)

    * cp-lex.c (real_yylex): Call REAL_VALUE_TRUNCATE with 2 args.

    * calls.c (expand_call): Handle allocating ARGBLOCK in the case
    that ACCUMULATE_OUTGOING_ARGS is not defined.

Mon Dec 30 10:27:11 1991  James Van Artsdalen  (james at bigtex.cactus.org)

    * protoize.c: fix typo in <sys/wait.h> inclusion.

Mon Dec 30 06:16:16 1991  Leonard Norrgard  (vinsci at nic.funet.fi)

    * c-decl.c (grokdeclarator): Changed erroneus error message.

Sun Dec 29 16:16:55 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * toplev.c (main): Last -On option wins.
    * Makefile.in (ENQUIRE_CFLAGS): Add -O0.

    * Makefile.in (cp-tab.c): Change "expect" message.

    * final.c (leaf_renumber_regs): Renumber just the PATTERN.

Sun Dec 29 14:20:15 1991  Per Bothner  (bothner at cygnus.com)

    * dbxout.c (dbxout_type): Tiemann's DECL_IGNORED_P optimization (Nov
    20) was a little too drastic: If it succeded, no type info was
    emitted at all, which made for syntactically invalid stabs.
    Instead, just set 'full=0',
    * dbxout.c (dbxout_symbol): Re-write code for TYPE_DECL to be a
    little cleaner.  It *seems* to work ...

Sun Dec 29 07:04:22 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * expr.c (convert_move): Add truncates from DImode to smaller modes.
    (move_by_pieces, move_by_pieces_ninsns): Rework to remove explicit
    references to integer modes.
    Never need to align greater than BIGGEST_ALIGNMENT.

    * optabs.c (init_extends, init_fixtab, init_floattab, init_optabs):
    Add TImode operations.

    * reload.c (find_reloads): Prefer alternatives that reload SCRATCH
    instead of something else.

    * rs6000.md (movti): Adjust constraints and alternative order so
    we actually get to use the  stsi insn.

    * rs6000.h (REG_ALLOC_ORDER): Put r9 in front of r11 so we don't try to
    put a TImode value in r11 as often.

    * caller-save.c (setup_save_areas): New parameter pchanged; set when
    memory is allocated.
    * reload1.c (reload): Pass pointer to something_changed to
    setup_save_areas.

    * loop.c (scan_loop): Don't suppress moving insns that can trap just
    because we have passed a call inside a libcall/retval block.

    * jump.c (get_label_before): Don't separate a CALL_INSN from any USE
    insns immediately preceeding it.
    (get_label_after): Likewise, for following CLOBBERs.

    * cse.c (fold_rtx, case '<'): When seeing if we have seen this
    comparison before, use a constant equivalence.
    Add test for things like "(a | 1) != 0".
    (fold_rtx, case '2'): Move code to handle associative operations to
    here; add support for MINUS, SMAX, SMIN, UMAX, and UMIN.
    (record_jump_equiv): See if OP1 is equivalent to a constant.

    * jump.c (jump_optimize): Don't pass a SUBREG as a target to
    expand_and.

    * combine.c (subst): Never associate floating-point, even if not IEEE.
    Associate MAX and MIN operations.

    * output.h (output_asm_insn, asm_fprintf): Add "extern" to decls.
    (alter_subreg): Add declaration.
    * rs6000.md (movsf, movdf): Don't declare alter_subreg here.
    (trunc_call_rtl): Don't declare trunc_used; use rs6000_trunc_used.
    * rs6000.c (rs6000_trunc_used): New name of trunc_used.
    * rs6000.h (rs6000_trunc_used): Add declaration.

Sat Dec 28 18:14:21 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-method.c (build_overload_name): Don't call OB_FINISH unless END
    is nonzero.

Sat Dec 28 17:46:05 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * gcc.c (default_compilers): Handle -ansi in the C++ entries
    exactly the same way as the C entries do.

    * rtl.c (add_dependence): Cast enums to int before doing an
    ordered comparison, since some compilers can't do this.

    * sparc.c (pic_address_needs_scratch): New function.  Returns
    true if the pic address X needs a scratch register when loaded.
    (legitimize_pic_address): Clean up.  New argument SCRATCH, which
    is a scratch register for those loads that need it.
    (emit_move_sequence): New argument SCRATCH_REG, which is a scratch
    register for those loads that need it.  When loading a pic label,
    set %o7 instead of clobbering it so its value can be used later.
    (compute_frame_size): Leaf functions need to allocate space for
    register window in frame if size greater than 0.
    (print_operand): Delete obsolete %^ which added %o7 to addresses.
    All uses of %o7 are now explicit.
    * sparc.h: Fix callers of legitimize_pic_address.
    (REG_CLASS_FROM_LETTER): Add 'r' case.
    (SECONDARY_INPUT_RELOAD_CLASS): New macro, to force reload to
    allocate a scratch register for certain pic address reloads.
    (flag_pic): Define as extern so that it will be defined for
    insn-emit.c.
    * sparc.md: Fix all callers of legitimize_pic_address and
    emit_move_sequence.
    (reload_insi): New pattern.  Used to force reload to allocate a
    scratch register for those pic address loads that need one.
    (reload_insi+2): When loading pic label, set %o7 instead of
    clobbering it.
    (movdf, movsf): Reject matches that would require reloading via
    use of a condition.
    (tablejump): Now a define_expand, so can generate different
    pattern when pic.
    (pic_tablejump): Explicitly mention in rtl that %o7 is used,
    instead of using %^.

    * m88k.h, sparc.h: Delete references to non-existent
    BLOCK_PROFILER_USED_REG_P macro.

Sat Dec 28 14:31:36 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * c-lex.c (check_newline): Set ignore_escape_flag for reading filename.
    (yylex): Handle ignore_escape_flag in string constant.

    * gnulib2.c (__do_global_dtors): Count elements properly.

    * m68k.md (tsthi): Don't allow address register.

Sat Dec 28 11:49:06 1991  James Van Artsdalen  (james at bigtex.cactus.org)

    * final.c (final): Initialize elements of line_note_exists.

    * protoize.c: Don't include <sys/wait.h> on USG unless SVR4.

Sat Dec 28 11:09:36 1991  Fred Fish  (fnf at fishpond)

    * Makefile.in (includes): Pre-remove the tmp dir; fix INSTALLED_H ref.

Sat Dec 28 06:31:16 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * sparc.md (movstrsi): Fix typo testing for more than 32 subunits.

    * genrecog.c: Major rework.
    We now check to see if pairs of comparison nodes can have anything
    that they both match.  If not, they can be reordered.  An efficient
    ordering is established that groups all nodes with identical rtl
    codes inside groups with identical modes.  This allows us to generate
    a comparison tree that is a list of nested switch statements.
    Also, genrecog.c is now indented properly so that debugging is eased.
    (add_to_sequence): Enforce mode on the first arg of COMPARE, comparison
    operation, SIGN_EXTEND, and ZERO_EXTEND.

    * a29k.h, romp.h, rs6000.h (PREDICATE_CODES): Add definition.

Fri Dec 27 17:31:48 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * a29k.h, decrose.h, encrose.h, m88kdgux.h (WCHAR_TYPE_SIZE):
    Add definition.
    * rs6000.h, sparc.h, sun2o4.h, sun3.h, svr3.h, svr4.h: Likewise.

    * expmed.c (expand_mult): For negative values, try multiplication by
    the original value as well as by negated value.

Fri Dec 27 20:54:59 1991  Fred Fish  (fnf at fishpond)

    * m68kv4.h:  Include m68ksgs.h rather than m68k.h.

    * m68kv4.h:  Define TARGET_DEFAULT to be 68020 + 68881.
    (CPP_SPEC): Define based on TARGET_DEFAULT

    * m68kv4.h (PCC_STATIC_STRUCT_RETURN): Undef this.
    (CTORS_SECTION_ASM_OP, DTORS_SECTION_ASM_OP): Defs deleted.
    (ASCII_DATA_ASM_OP, ASM_OUTPUT_ASCII): Defs deleted.

    * m68kv4.h (ASM_OUTPUT_SKIP, FUNCTION_VALUE_REGNO_P):
    (FUNCTION_PROFILER, STRUCT_VALUE_REGNUM, BSS_ASM_OP):
    (FUNCTION_VALUE, FUNCTION_EXTRA_EPILOGUE, LIBCALL_VALUE):
    (STACK_BOUNDARY, EMPTY_FIELD_BOUNDARY, BIGGEST_ALIGNMENT):
    Redefined to match m68k/SVR4 conventions.

    * m68ksgs.h (ASM_OUTPUT_SKIP): Redefined to use `.space'.
    (ASM_NO_SKIP_IN_TEXT): Defined.

    * amix.h, xm-amix.h, x-amix: New files.

Fri Dec 27 20:43:11 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-tree.h (build_overload_name): Declare this function.
    * cp-decl2.c, cp-method.c: Delete random `extern' declarations.

    * cp-lex.c (get_directive_line): Declare it extern.
    (lineno,yychar,yylval,lastiddecl,finput): Ditto.
    (ridpointers): Don't need to declare it here.
    (check_newline): Handle new #pragmas.

    * cp-class.c (add_method): Add a cast in call to `obstack_base'.

Fri Dec 27 20:22:05 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-decl.c (push_overloaded_decl): Now returns a value.
    All callers changed.

    * cp-decl.c (duplicate_decls): Give better error message when user
    declaration conflicts with built-in one.  Also, when we decide to
    keep a builtin function builtin, copy the DECL_RTL from OLDDECL to
    NEWDECL.

Fri Dec 27 17:18:15 1991  Michael Meissner  (meissner at osf.org)

    * mips.h (TRAMPOLINE_TEMPLATE): Define correctly for MIPS.
    (TRAMPOLINE_SIZE): Define to be 9 words.
    (INITIALIZE_TRAMPOLINE): Define correctly for MIPS.
    (TRANSFER_FROM_TRAMPOLINE): Define to do a mprotect of the
    trampoline, so that we can jump to it.  I suspect the mprotect may
    fail on some MIPS based systems, because the trampoline is on the
    stack, and not in the data section.

    * mips.c (mips_output_filename): Don't warn about ECOFF not
    handling #line's within functions if we are using the OSF/rose
    object format.

Fri Dec 27 15:35:38 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * c-typeck.c (build_array_ref): Special warning about `register' array.

    * gnulib2.c (L_trampoline): Don't create a function here.
    The definition of TRANSFER_FROM_TRAMPOLINE can do that if nec.
    * m68k.h (TRANSFER_FROM_TRAMPOLINE): Make the function here.

    * fx80.*: Renamed from alliant.*.
    * configure: Alternative renamed to fx80-alliant-*.
    * config.sub: Corresponding changes.

    * cccp.c (traditional): No longer static.
    * cexp.y (yylex): Handle full variety of character constants.
    Include stdlib.h and locale.h if needed.

    * c-decl.c (shadow_tag): Change warnings to error or pedwarn.

    * gnulib2.c (__do_global_dtors): If length not given, count it.
    * gbl-ctors.h (DO_GLOBAL_CTORS_BODY): Ignore length; scan till null.
    (__CTOR_END__, __DTOR_END__): Declarations deleted.

    * cp-decl2.c (finish_file): Always change $ to _
    regardless of NO_DOLLAR_IN_LABEL.

Fri Dec 27 15:04:40 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * svr4.h (ASM_OUTPUT_ALIGNED_COMMON): Fix typo.

    * m88k.c: Move extern decls.
    (output_ascii): Use ASCII_DATA_ASM_OP.
    * m88k.h (HAVE_ATEXIT): Delete.
    (ASM_OUTPUT_ALIGNED_COMMON, ASM_OUTPUT_ALIGNED_LOCAL,
     ASCII_DATA_ASM_OP): Override svr4.h.
    (EXTRA_SECTIONS): No ctors/dtors for m88k-luna.
    * m88kdgux.h (STANDARD_STARTFILE_PREFIX): No need to override svr4.h.

Fri Dec 27 11:34:59 1991  Ken Raeburn  ([e-mail])

    * cp-pt.c (mangle_class_name_for_template): Use a local obstack
    rather than fixed-size buffers.

    * cp-class.c (add_method): Case obstack_base value to desired type
    when reallocating vector node.

Fri Dec 27 09:16:50 1991  Ron Guilmette  (rfg at ncd.com)

    * sort-protos:  New file.

    * i386.c: Remove decls of frame_pointer_needed; include flags.h.
    * i386.c (output_387_binary_op, output_float_compare):
    Moved declarations of strcat to top level.

    * i860.md (cmpnesf, cmpnedf):  New patterns.
    * i860.md (cmplesf, cmpgesf):  Corrected to allow for IEEE conformance.

Thu Dec 26 11:20:07 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-class.c: Declare N_* variables here.
    * cp-class.h: Declare N_* variables extern here.

    * cp-gc.c (build_static_gc_entry): Call `assemble_gc_entry' instead
    of implementing it directly.
    * varasm.c (assemble_gc_entry): New function.

    * calls.c (expand_call): Don't crash if somebody declared a void
    function `const'.

    * cp-cvt.c (convert): Handle case when two equal array types are
    distinct (in memory).
    * tree.c (build_index_2_type): Don't set TREE_TYPE of lower bound.
    (index_type_equal): New function.

    * cp-spew.c (yylex): Extend special-case ptr-to-func ((*)()) parsing
    to handle (*)[] and (&)[] declarations as well.

    * cp-decl2.c (finish_file): Unconditionally call
    assemble_{constructor,destructor}.  Also, delete code for writing
    _init and _fini sections that was #if 0'd.  These actions belong in
    varasm if anywhere.

    * cp-class.c (add_method): Fix handling of obstacks to correctly
    extend TREE_VECs.

Thu Dec 26 15:24:45 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * cccp.c (main): Add new option -include.  Rename -i to -imacros.
    * gcc.c (SWITCH_TAKES_ARG): Remove -i.
    (WORD_SWITCH_TAKES_ARG): Add -include, -imacros.
    * hp800.h (WORD_SWITCH_TAKES_ARG): Add all the standard alternatives.
    * mips.h (SWITCH_TAKES_ARG): Remove -Y and -i.
    * next.h, sparc.h (WORD_SWITCH_TAKES_ARG): Add -include, -imacros.
    * sun2.h, sun3.h (WORD_SWITCH_TAKES_ARG): Copy from sparc.h.
    * svr4.h (SWITCH_TAKES_ARG): Remove -i, -f.
    (WORD_SWITCH_TAKES_ARG): Add -include, -imacros.

    * toplev.c (flag_gnu_linker): New variable.  -fgnu-linker.
    * flags.h (flag_gnu_linker): Declare it.
    * varasm.c (assemble_constructor, assemble_destructor):
    Handle flag_gnu_linker.

    * sparc.md (structure values): Separate unimp pattern deleted.
    New pattern for combined call and unimp.  `call' pattern changed.
    (type): Deleted type marker, added call_no_delay_slot.

Thu Dec 26 05:04:28 1991  James Van Artsdalen  (james at bigtex.cactus.org)

    * reg-stack.c (move_for_stack_reg): If a SET_DEST is REG_UNUSED,
    just pop the SET_SRC.

Wed Dec 25 17:23:25 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * c-decl.c (init_decl_processing): Fix type of exit, _exit.

    * jump.c (cross_jump_death_matters): Move def to front, make static.

Tue Dec 24 20:41:32 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * hard-reg-set.h (reg_names): Declare here.
    * stmt.c (expand_asm_operands): Not here.

    * gcc.c (handle_braces, do_spec_1, give_switch): Clear up %*.

    * expr.c (expand_expr): Delete decl of lang_expand_expr.

    * final.c (final_scan_insn): Delete line number followed by another
    line number, if numbers are effectively consecutive.

    * jump.c (jump_optimize): Set cross_jump_death_matters from cross_jump.
    * reg-stack.c (reg_to_stack): Pass 2 for cross_jump to jump_optimize.
    Don't set cross_jump_death_matters here.
    (record_reg_life): Delete decl of call_used_reg_set.

    * c-decl.c (init_decl_processing):
    Declare abort, exit, and _exit as volatile.

    * c-decl.c (implicitly_declare): Set IDENTIFIER_IMPLICIT_DECL earlier.
    (pushdecl): Test that and avoid nested extern warning.

    * c-decl.c (init_decl_processing): Don't handle EXPAND_BUILTIN_VARARGS.

Tue Dec 24 15:42:34 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-init.c (add_friends): Add missing IDENTIFIER_POINTER macro
    application to strncmp argument.

    * cp-method.c (build_overload_*): Now uses SCRATCH_OBSTACK instead
    of relying on fixed buffers of finite length.
    (fndecl_as_string): Ditto.
    All callers changed.
    * cp-except.c (cplus_exception_name): Definition moved to
    cp-method.c.

Tue Dec 24 10:38:49 1991  Michael Collison  (collison at osf.org)

    * ns32k.c (hard_regno_mode_ok): Define this as a function now.
    Also change the way it work so that we don't allow moves between
    the general registers and the floating point registers.

    * ns32k.h (HARD_REGNO_MODE_OK): Turn it into a function call.

    * ns32k.md (call_value): fix to correct a bug where the compiler thinks
    the return value of a function call is in f0 instead of r0. Fix
    courtesy of vince russo.
    (movqi, movhi): Fix up these patterns because they could return
    undefined instruction templates. Fix courtesy of vince russo.

Tue Dec 24 10:14:20 1991  Ron Guilmette  (rfg at ncd.com)

    * mips-tfile.c (main): Move nested extern decl of version_string to
    file-scope.
    (catch_signal): Move nested extern decl of sys_siglist to
    file-scope.

    * varasm.c (assemble_variable): Handle ASM_OUTPUT_ALIGNED_COMMON.
    * svr4.h (ASM_OUTPUT_ALIGNED_COMMON, ASM_OUTPUT_ALIGNED_LOCAL): New.
    (ASM_OUTPUT_COMMON, ASM_OUTPUT_LOCAL): Deleted.

    * gcc.c (SWITCH_TAKES_ARG, default_compilers):  Eliminated -Y* option.
    (execute):  Moved decls of execv and execvp to top level.
    (do_spec, do_spec1, handle_braces, give_switch): Support new %* spec.

    * c-lang.c (recognize_objc_keyword):  Added explicit return.

    * svr4.h (SWITCH_TAKES_ARG, WORD_SWITCH_TAKES_ARG):  New definitions.
    (ASM_SPEC, LINK_SPEC): Support more standard svr4 options.
    (LIB_SPEC):  Fixed to link crtend.o *after* libc.a.

    * svr4.h (CONST_SECTION_FUNCTION):  Moved decl of `text_section' to
    top level.

    * cexp.y (main): Add explicit return type and explicit value.
    Move decl of yydebug to top level.

    * gnulib2.c (__bb_init_func):  Moved decl of ___tcov_init to top level.

    * toplev.c (main):  Deleted obsolete checks for -opt and -noreg.
    Moved decls of environ, version_string, language string to file-scope.
    Compile-time error if PREFERRED_DEBUGGING_TYPE is missing.

    * tree.c (dump_tree_statistics): Deleted decl of class_obstack.
    (object_permanent_p):  Added explicit return type.

Tue Dec 24 09:29:24 1991  Charles Hannum  (mycroft at hal.gnu.ai.mit.edu)

    * expr.h (lang_expand_expr): Fix typo.

Tue Dec 24 06:52:45 1991  Michael Meissner  (meissner at osf.org)

    * gnulib2.c (__main): Make sure the exit module is pulled in if we
    have atexit, since that module defines constructor/destructor
    variables as bss symbols rather than as references.

    * decrose.h (HAVE_ATEXIT): Define.
    * encrose.h (HAVE_ATEXIT): Define.
    * i386rose.h (HAVE_ATEXIT): Define.
    * decstatn.h (HAVE_ATEXIT): Define.

    * gcc.texinfo (HAVE_ATEXIT): Expand documentation.
    (EXIT_BODY): Document.

    * protoize.c (POSIX): Make protoize accept TARGET_POSIX as a synonym
    for POSIX to make the code and documentation agree.  Also, if the
    user defined _POSIX_SOURCE explicitly, turn on POSIX support in
    protoize.

Tue Dec 24 00:14:38 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * calls.c (emit_call_1): Additional arg STRUCT_VALUE_SIZE.
    Use as arg in call and call_value insns.
    (expand_call): Record the size, to pass it.
    * expr.c (emit_library_call): Pass 0 for STRUCT_VALUE_SIZE.
    * sparc.md (call, call_value): Make use of new arg.
    Generate an unimp instruction to use sparc calling convention.
    Add nameless pattern to recognize it.
    * sparc.c (output_function_epilogue): Skip the caller's unimp insn.

    * Makefile.in (INSTALLED_H): New variable.
    (includes): Preserve just those specific files.

    * expr.h (lang_expand_expr): Declare it.
    * expr.c: Don't declare it.
    * cp-expr.c (init_cplus_expand): Set up lang_expand_expr here.
    * cp-lex.c (init_lex): Call init_cplus_expand.

Mon Dec 23 15:17:59 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * configure: Delete m88k-v88r32 (this is supported by m88k-svr3)
    and add m88k.
    * config.sub: Delete v88r as a system type.

Mon Dec 23 19:50:48 1991  Fred Fish  (fnf at fishpond)

    * 3b1.h, crds.h, hp320.h, m68k.md, m68ksgs.h, mot3300.h, news.h,
    tower-as.h:  Replace port oriented macros SGS_3B1, HPUX_ASM, and
    SONY_ASM, with configuration oriented macros SGS_SWITCH_TABLES,
    SGS_SWAP_W, SGS_CMP_ORDER, and SGS_NO_LI.

    * m68ksgs.h: New file.

    * m68k.c (print_operand_address): Change switch labels for MOTOROLA.
    Don't use a `%'.  Add missing `L' to some labels.
    For SGS assembler, use one symbol for the offset.

Mon Dec 23 17:03:13 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * recog.h (insn_name): New declaration.
    * final.c (output_asm_insn):  Don't declare insn_name here.

    * dbxout.c (dbxout_function, dbxout_begin_function):
    Pass missing arg to dbxout_really_begin_function.

    * jump.c (jump_optimize): Set new var can_reach_end.
    * c-decl.c, cp-decl.c (finish_function):
    Merge that into current_function_returns_null.

    * config.sub (fx2800): New machine alias.

    * va-m88k.h (va_start): Test __GNUC__, not __CLASSIFY_TYPE__.

    * m88kv4.h: New version from Wood.
    (CPP_PREDEFINES): Put -A options here.  Remove __CLASSIFY_TYPE__.

    * cccp.c (initialize_builtins): Define __GNUC__ as 2.

    * rtl.h (read_rtx): New declaration.

    * c-lex.c: Don't include output.h.
    (asm_out_file): Declare it.
    (ridpointers): Allocate storage here.

    * c-lex.h (lastiddecl, token_buffer): Declare here.
    (yylex, make_pointer_declarator, reinit_parse_for_function): Likewise.
    * c-parse.y, objc-parse.y: Not here.

    * objc-actions.c (error_with_ivar, error_with_method):
    (warn_with_method): Use count_error, not errorcount.

Mon Dec 23 11:50:37 1991  Ron Guilmette  (rfg at ncd.com)

    * sdbout.c:  Fixed typo.
    * stmt.c (init_stmt, init_stmt_for_function):  Explict return type.
    * gnulib2.c (__fixunsdfdi, __fixunssfdi): Move extern decls.
    * recog.c (init_recog):  Added explicit return type.
    * longlong.h (count_leading_zeros):  Moved decl of `__clz_tab'.
    * print-rtl.c (insn_name_ptr):  Make decl `extern'.

    * objc-actions.h, objc-actions.c (doing_objc_thang):  Make extern.
    * objc-actions.h, objc-actions.c (finish_class):  Return void.
    * objc-actions.c (continue_class):  Added default error return value.

    * fixinc.svr4: Map assertion tests to equivalent ANSI macro tests.

    * i860.c (output_block_move):  Disabled code to move by words or
    halfwords until it can be made to work right.

    * i860.c (output_block_move):  Moved a sequence of common
    `output_asm_insn' calls out of (and before) conditionals.

    * i860.c (output_block_move):  Corrected bugs in move loop.

Mon Dec 23 15:25:01 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * m88kv4.h (CPP_PREDEFINES): Fix for varargs/stdarg.
    (includes): Include svr4.h before m88k.h so the overrides in m88k.h
    will take effect.

Mon Dec 23 07:06:27 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * i860.c (output_delayed_branch): Call insn_extract and
    constrain_operands so that `which_alternative' is set properly.

    * stor-layout.c (layout_type, case ARRAY_TYPE): Handle
    TYPE_NO_FORCE_BLK similar to RECORD_TYPE.

    * encrose.h, i386rose.h, mips.h (LIBG_SPEC): Deleted; unused.

Sun Dec 22 12:02:03 1991  James Van Artsdalen  (james at bigtex.cactus.org)

    * i386.c (function_epilogue): Use correct operand for insn mode.

Sun Dec 22 12:20:16 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-decl.c (grokdeclarator): Don't set TREE_PUBLIC for member
    functions that are really declared as inline methods.

    * cp-init.c (build_virtual_init): Add missing call to
    `assemble_external' when we use a virtual function table.

    * cp-decl.c (implicitly_declare): Don't allocate a decl if at the
    global binding level.

    * vax.h (PRINT_OPERAND): Handle new 'R' case.
    * vax.md: Change all patterns which passed a negated operand for
    `rotl' to use 'R' as the negator, since rotl cannot acctually handle
    negative arguments.

Sun Dec 22 12:31:46 1991  Ron Guilmette (rfg at ncd.com)

    * i386v4.h (TARGET_VERSION):  Added definition.
    * i860v4.h (TARGET_VERSION):  Added definition.

    * m68kv4.h:  New file.
    * fx2800.h:  New file.

    * m88kv4.h (DWARF_DEBUGGING_INFO):  Deleted redundant definition.
    (It's defined already in svr4.h.)

    * m88kv4.h (CPP_PREDEFINES): Added definition.

    * m88kv4.h (CPP_SPEC, LIB_SPEC, LINK_SPEC, STARTFILE_SPEC):
    Deleted redundant definitions.  (These are defined in svr4.h.)

    * cccp.c (errno, sys_nerr, sys_errlist): Moved extern decls to top lev.
    * function.c (round_down): Likewise.
    * calls.c, c-convert.c: Delete block-level extern decls.
    * c-convert.c: Include flags.h.

    * configure (i386-*-sysv*):  Fixed tmake_file value.
    (i860-*-sysv3*):  Fixed xmake_file and tmake_file value.
    (i860-alliant-*):  New configuration.

    * i860.c (recog_operand, call_used_regs, insn_template,
    insn_n_operands, insn_outfun, alter_subreg):  Moved extern
    declarations out of local contexts and put them at file-scope.

    * i860.c (zero_operand):  Deleted useless function.

    * i860.c (singlemove_string): Added code to optimize moving halfword
    constants.

    * i860.c (output_block_move):  Don't do CC_STATUS_INIT until it is
    definitely necessary & appropriate.

    * i860.c (output_block_move):  Create up to 16 sequential load/store
    pairs for constant length moves regardless of operand sizes (e.g.
    byte, halfword, word).

    * i860.c (output_block_move):  Try to generate widest kind of
    sequential load/store pairs for constant length moves before trying
    the less efficient (narrower) ones.

    * i860.c (output_block_move):  Don't do sequential load/store pairs
    for constant length moves unless the size is a multiple of the
    size of the operands moved each time (i.e. word, halfword, byte).

    * i860.c (output_block_move):  Re-wrote code to do inline variable
    length block moves to correct fatal errors (e.g. no check for zero
    or neagtive start count) and to make it more efficient (saved 1 cycle
    per iteration).

    * i860.c (output_block_move):  Make variable length moves with starting
    alignment of 4 or 2 `#if 0' for now, until they can be fixed to work
    right.  Also reordered all three cases so that longer alignments are
    checked for first.

Sun Dec 22 01:25:07 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * i386v4.h: Include svr4.h just once.

    * protoize.c (fprintf, printf): Decls put in #if 0.

    * emit-rtl.c (stack_slot_list): Delete superfluous extern decl.
    (emit): Abort if arg isn't recognized.

    * c-parse.y (current_declspecs, declspec_stack): Declare static.
    (undeclared_variable_notice): Likewise.
    (lastiddecl): Declare extern.
    * objc-parse.y: Same changes as c-parse.y.
    (token_buffer): Declare extern.

    * c-lex.c: Include output.h.
    (check_newline): Decl of asm_out_file deleted.

    * c-lex.h (ridpointers, NORID): Declare/define here.
    * c-lex.c, c-parse.y, objc-parse.y: Not here.

    * sun3.h (WORD_SWITCH_TAKES_ARG): Add `-assert'.
    (LINK_SPEC): Pass -assert to linker.

    * gbl-ctors.h (__CTOR_END__, __DTOR_END__): Remove `extern'.

    * sparc.h (RTX_COSTS): Increase multiply cost to 20.
    (MULSI3_LIBCALL): Use .umul.
    (UMULSI3_LIBCALL): Deleted.

Sat Dec 21 18:34:27 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * combine.c (simplify_comparison): Allow OP0 to be VOIDmode if it
    is a COMPARE or a comparison operation.

    * i860.md (bte): Remove now unneeded patterns.
    Correct mode mismatch errors in patterns that will now be used.

Sat Dec 21 00:14:25 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * ns32k.h (TRAMPOLINE_TEMPLATE, TRAMPOLINE_SIZE): Dummies deleted.
    (INITIALIZE_TRAMPOLINE): Likewise.  #error inserted.

    * ns32k.c (print_operand_address): For invalid address, just abort.

    * Makefile.in (FIXINCLUDES): New variable.
    (includes, maketest): Use that.
    * x-i386v4 (FIXINCLUDES): Override here.

Fri Dec 20 18:28:54 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * dbxout.c (dbxout_really_begin_function): New subroutine.
    (dbxout_function): Use that, but only if not DBX_FUNCTION_FIRST.
    (dbxout_begin_function): New function.
    * varasm.c (assemble_start_function): Call dbxout_begin_function.

    * dbxout.c (dbxout_function): Implement DBX_OUTPUT_FUNCTION_END.

    * sparc.md (movstrsi): Add missing double quote.

    * gcc.c (process_command): Handle -Xlinker.

    * calls.c (expand_call): Treat vfork like setjmp.

    * c-decl.c (implicitly_declare): Use push_obstacks_nochange.

    * sparc.h (WORD_SWITCH_TAKES_ARG): Add -assert.
    (LINK_SPEC): Pass -assert to linker.

    * svr4.h (ASM_OUTPUT_LOCAL): Fix typo.

Fri Dec 20 07:52:19 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-decl2.c (lang_decode_option): Recognize more -fno-OPTION
    options which need special treatment (in the turning off of the
    option).

    * cp-parse.y (named_class_head_sans_basetype_either): Rule deleted.
    (identifier_either): Rule deleted.
    (delete): Don't call `build_x_delete'' if the type does not have a
    destructor.  We may still need to adjust the address passed to
    `operator delete'.

    * cp-init.c (build_delete): New argument MAYBE_ADJUST.  All callers
    changed.  Also, add #if 0/#endif around code dealing with ALIGNMENT.
    It's dead code, and that's unclear otherwise.
    (maybe_adjust_addr_for_delete): New function.
    (build_new): Initialize special header for arrays allocated with
    `operator new[]'.  This is a rewrite of Ken's code.
    (init_init_processing): New built-in type BI_header_type.

    * cp-init.c (build_{new,delete}): Call `build_builtin_call' for BIN,
    BID.
    (build_builtin_call): New function.

    * cp-decl.c (grokvardecl): Set TREE_EXTERNAL.
    (grokdeclarator): Set TREE_PUBLIC for all member functions.  They
    are effectively global.  Do the same for static members.
    (start_function): Don't clear TREE_EXTERNAL in case the function
    belongs to another file's implementation.  Other fixes to
    TREE_PUBLIC/TREE_EXTERNAL logic based on interface/implementation.

    * cp-method.c (hack_identifier): Call `assemble_external' if
    necessary.

Fri Dec 20 06:27:38 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * reload1.c (emit_reload_insns): Always record first insn emitted
    for a reload, including any insns for a secondary reload.
    (gen_input_reload): Correct documentation of function.

Thu Dec 19 22:01:51 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * gnulib1.c (perform_fixdfsi): New customization macro.

    * svr4.h (SELECT_RTX_SECTION): Undef before defining.

Thu Dec 19 16:59:12 1991    (Eric Youngdale at [e-mail])

    * cccp.c (hack_vms_include_specification): Make conversion of
    filenames more versatile for user specified include directories.

Thu Dec 19 17:38:18 1991  Michael Meissner  (meissner at osf.org)

    * mips.h (#error's): Put tab in front of all #error's, so that
    ancient pre-ANSI compilers will not complain about unknown
    directives, even if the #error is #ifdef'ed out.

    * mips.md (fix_trunc*): Reorder constraints so that 'd' comes before
    'f', and put a '*' in front of 'f' constraints to keep integer in
    the GP registers.
    (define_splits): Add reload_completed check for all define_splits
    that use subreg on the arguments to work around bug in sched.c.

    * cccp.c (lang_asm): New static variable to indicate we are
    processing an assembly file and to ignore unknown directives in case
    they are comments, like they are on the MIPS systems.
    (main): Set lang_asm if -lang-asm switch.
    (handle_directive, skip_if_group): Don't report about unknown
    directives if lang_asm is set.

    * gcc.c (default_compilers array): Pass -lang-asm to cpp when
    processing .S files instead of -lang-c.

Thu Dec 19 15:06:09 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * c-decl.c (c_decode_option): Handle -fno-ident.
    * c-lex.c (check_newline): Ignore #ident for -fno-ident.

    * svr4.h (ASM_OUTPUT_LOCAL): Use assemble_name.

    * mips.h: Use #error, not #include, for error messages.

    * cccp.c (warning, main): Implement -Werror.

    * i386sco.h (CPP_SPEC): Move non-fixed option here.
    (CPP_PREDEFINES): From here.

    * gcc.c (do_spec_1): For %p, just pass -D options.
    For %P, pass all -A options.  Put in whitespace, fix typos.

    * c-parse.y (parmlist_2, defn_parmlist_2): Warn about (...).
    * c-decl.c (get_parm_info): Don't warn here.

Thu Dec 19 06:15:46 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * toplev.c (compile_file): Avoid ordered comparison of debug_info_level
    since it is an enum.

    * mips.c: Include gstab.h.

    * sparc.md: Fix typo.

    * caller-save.c (save_call_clobbered_regs): Don't save regs that
    die in a CALL_INSN or that are born there.

Thu Dec 19 04:28:23 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * c-aux-info.c (gen_aux_info_record): Don't write space at line beg.

Wed Dec 18 11:46:13 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * cse.c (cse_main): Use get_max_uid rather than computing it.

Wed Dec 18 18:13:06 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * loop.c (scan_loop): Ensure replacement made  by single-use code
    is not modified in the life of the register being replaced.

Wed Dec 18 15:37:52 1991  Ron Guilmette  (rfg at ncd.com)

    * rtl.h (fconst2_rtx, dconst2_rtx):  Added extern declarations.

    * flags.h (flag_inhibit_size_directive): Declared.

    * svr4.h (INT_ASM_OP, INIT_SECTION_ASM_OP):  Moved around.
    (ASCII_DATA_ASM_OP):  Definition added.
    (flag_inhibit_size_directive):  Deleted superfluous extern decls.

    * Makefile.in:  Correct number of expected shift/reduce conflicts
    reported by bison for cp-parse.y.

    * sparcv4.h:  New file.

    * i860.h (FUNCTION_ARG_BOUNDARY):  Added definition.
    (sfmode_constant_to_ulong):  Added extern declaration.

    * i860.md (BTE/BTNE patterns):  Changed all instances of
    `(match_operand:SI 2 "zero_operand" "J")' to `(const_int 0)'.

    * i860.md (load then BTE/BTNE patterns):  Added 8 new patterns,
    for cond branch on EQ/NE of a zero-extended memref with small integer.

    * i860.md: 20 new patterns (involving BTE/BTNE) like existing 20
    but simplified so that the combiner will find them.

    * i860.md (sfmode_constant_to_ulong, fconst2_rtx):  Removed
    superfluous nested extern declarations.

Wed Dec 18 15:39:46 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * va-i860.h (va_start for stdarg.h): Divide reg counts by 4.

    * stmt.c (emit_case_nodes): Fix typo, near testing cost_table.

    * i860.h (CUMULATIVE_ARGS): Define a named struct, then use it.

    * function.c (expand_function_start): Compute sizes in proper order.

    * svr4.h (MD_STARTFILE_PREFIX): Defined.
    (STANDARD_STARTFILE_PREFIX): Deleted.

    * sparc.md (movstrsi): Disable if needs more than 32 insns.

    * expr.c (store_expr): Handle copying too-short STRING_CST.

    * gstdarg.h (_VA_LIST): Handle this like _VA_LIST_.

    * m68k.h (LOCAL_LABEL_PREFIX): Remove the `L'.
    Fix uses of %L by adding `L'.
    * m68k.c (print_operand_address): Fix use of %L.
    * m68k.md (movhi): Fix use of %L.  They were inconsistent.

Wed Dec 18 14:59:26 1991  Michael Meissner  (meissner at osf.org)

    * limits.h (whole file): Protect against inclusion.

    * t-decrose (LIMITS_H): Don't install limits.h on OSF/1.
    * t-encrose (LIMITS_H): Don't install limits.h on OSF/1.
    * t-i386rose (LIMITS_H): Don't install limits.h on OSF/1.

    * x-decrose (SYSTEM_INCLUDES): Don't do -I/usr/include.
    * x-encrose (SYSTEM_INCLUDES): Don't do -I/usr/include.
    * x-i386rose (SYSTEM_INCLUDES): Don't do -I/usr/include.

Wed Dec 18 04:53:23 1991  Ken Raeburn  ([e-mail])

    * cp-init.c (build_new): Rewrote some of the array-handling code.
    Now stores the number of elements (after stripping off all outer
    ARRAY_TYPE nodes) at the start of allocated storage, just before the
    pointer the user's program sees.  We also store the 2s compliment
    value of the pointer returned so we can distinguish when deleting a
    pointer whether it was "adjusted" or not.
    (expand_vec_init): Added a type conversion for cases when the
    address of an array gets passed in and we want to deal with the
    elements.
    (build_delete): Catch a case where deletion of arrays could slip
    through.
    (build_vec_delete): More array-handling rewrites.  Extract the
    stored value and use it as the number of objects to destroy; ignore
    any value supplied by the user.

    * cp-init.c (init_vfields): Now static.

    * cp-tree.h (struct lang_decl_flags): Merged "dummy" fields.

    * cp-tree.h (DECL_TEMPLATE_INSTANTIATIONS): New macro for finding a
    list of instantiations already made of a template.  (Only
    implemented for functions currently.)
    * cp-tree.def (DECL_TEMPLATE_INSTANTIATIONS): Describe it.
    * cp-pt.c (instantiate_template): Maintain and make use of it.

    * cp-pt.c (tsubst, case REFERENCE_TYPE): Call build_reference_type
    instead of constructing the type here.

Wed Dec 18 03:37:46 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * c-parse.y (label_decl): Use identifiers_or_typenames.

    * c-parse.y: Support FUNCTION ([ARGNAMES] DECLS) {...}.
    (defn_parmlist_2, defn_parms): New nonterminals.
    (identifiers_or_typenames): New nonterminal.
    (parmlist_or_identifiers_1): Changed.
    * c-decl.c (combine_parm_decls): New function.

Tue Dec 17 22:18:43 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * function.c (expand_main_function): Build SYMBOL_REF with Pmode,
    not VOIDmode.

    * rs6000.h (HARD_REGNO_NREGS, CLASS_MAX_NREGS): FP regs can only hold
    64 bits, not any size FP value.

    * reload1.c (reload): Remove variable old_caller_save_needed.
    Call init_save_areas and setup_save_areas instead of
    allocate_save_areas and elim_save_addrs.
    * caller-save.c (init_caller_save): New function, from part of
    allocate_save_areas.
    (setup_save_areas): New function, from rest of allocate_save_areas
    and elim_save_addrs.
    When scanning pseudos to find hard regs that might need caller-save,
    look at all parts of multi-word registers.

    * flow.c (elim_reg_set): New variable.
    (flow_analysis): Set it to contain those regs that we can eliminate.
    (mark_used_regs): Don't set eliminable regs as live when they are used.

    * global-alloc.c (global_alloc): Clear preferences with eliminable
    regs, in addition to clearing conflicts.

    * reload.c (find_reloads_toplev): Abort instead of making
    a SUBREG of a VOIDmode constant.

    * emit-rtl.c (copy_rtx_if_shared): SCRATCH may always be shared.

Tue Dec 17 21:06:03 1991  Michael Meissner  (meissner at osf.org)

    * mips.h (MIPS_VERSION): Bump MM version number to 5.
    (processor_type): New enum to hold which type of
    processor to schedule for.
    (mips_cpu): New global to hold processor type.
    (MASK_*, TARGET_*): Rearrange target bits, add bits to select
    processor type, r4000 int/long/long long sizes.
    (TARGET_SWITCHES): Delete redunant no options, only leave no-
    version.
    (CUMULATIVE_ARGS): Make this a structure, not a pointer to a
    structure.
    (INIT_CUMULATIVE_ARGS): CUMULATIVE_ARGS changes.
    (FUNCTION_ARG_ADVANCE): Ditto.
    (FUNCTION_ARG): Ditto.
    (FUNCTION_ARG_PARTIAL_NREGS): Ditto.
    (RTX_COSTS): Count simple memory refs as one instruction.
    (REGISTER_MOVE_COST): Define as 4, to make sure constraints are
    checked.

    * mips.md (hilo type attribute): Add hilo type attribute to
    separate moves to/from the hi/lo registers with other register
    transfers.
    (move patterns): Set hilo attribute as appropriate.
    (define_function_units): Update the integer and memory functional
    units to include R4000 and R6000 processors, keyed off of the
    -mr[46]000 switches.  Add a new functional unit for transfering
    stuff between register sets.
    (mov{sf,df}_xfer*): Remove these patterns, as they are no longer
    needed in GCC 2.00 to move between the different register sets,
    and generate insn not found messages if used.
    (movsi_ulw, movsi_usw): Correct test to see if stack loads are
    aligned.  Use UNITS_PER_WORD-1 instead of a hard coded 3.
    (move define_expands): Delete move define_expands, since they are
    illegal according to the documentation, and the bug they guard
    against has long ago been fixed.

    * mips.c (mips_cpu): New global to hold processor type.
    (override_options): Set mips_cpu, check for 64 bit r4000 switches
    if processor not a r4000.
    (init_cumulative_args): CUMULATIVE_ARGS changes.
    (function_arg_advance): Ditto.
    (function_arg): Ditto.
    (function_arg_partial_nregs): Ditto.
    (mips_output_filename): Except for first .file, don't emit any other
    .file if encapsulating stabs in ECOFF, just put out stabs.  This
    confuses gdb.
    (mips_output_lineno): Don't put out .loc's if encapulating stabs in
    ECOFF.
    (mips_asm_file_start): Put a .set nobopt for MIPS assembler to
    work around bug where the assembler goes bonkers if a branch
    inside of a .set noreorder section jumps to a label outside of a
    .set noreorder section.  This is supposed to be fixed in 2.20 of
    the assembler.
    (function_epilogue): Correctly emit nops with tabs and newlines if
    needed.

    * decrose.h (OBJECT_FORMAT_ROSE): Define, to tell collect to
    enable OSF/rose support, rather than use nm.

    * encrose.h (OBJECT_FORMAT_ROSE): Define, to tell collect to
    enable OSF/rose support, rather than use nm.

    * i386rose.h (OBJECT_FORMAT_ROSE): Define, to tell collect to
    enable OSF/rose support, rather than use nm.

    * t-decrose (EXTRA_PASSES): Build collect2 instead of collect-osf,
    and link it to ld.

    * t-encrose (EXTRA_PASSES): Build collect2 instead of collect-osf,
    and link it to ld.

    * t-i386rose (EXTRA_PASSES): Build collect2 instead of collect-osf,
    and link it to ld.

    * x-decrose (DEBUG): Delete -g, since CFLAGS already passes it.
    (GCC_CFLAGS): Define POSIX so we can build protoize.

    * x-encrose (DEBUG): Delete -g, since CFLAGS already passes it.
    (GCC_CFLAGS): Define POSIX so we can build protoize.

    * x-i386rose (DEBUG): Delete -g, since CFLAGS already passes it.
    (GCC_CFLAGS): Define POSIX so we can build protoize.

    * t-decstatn (EXTRA_PASSES): Explicitly mention collect2.
    (ld): Use $(SYMLINK) rather than just ln.

    * t-mips (EXTRA_PASSES): Explicitly mention collect2.

    * collect2.c (whole file): Rewrite file based on collect-osf, to
    make it more portable.  Highlights include: running ld only once if
    there are no constructors; OSF/rose support; not assuming that the
    linker, assembler, nm live in /bin; -v support to trace the commands
    being executed and print a version number; loops instead of
    recursion used to write out the tables; support for user using -r;
    checking all error returns; not using the shell to start processes.

    * collect-osf.c (whole file): Deleted, merged into collect2.c.

Tue Dec 17 15:49:06 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * sched.c (schedule_insns): Don't update value of reg_live_length
    when it is negative, because negative values are special.

    * sched.c (schedule_block): Make new_needs an int not an enum, since
    some compilers won't accept using `|' and `&' with enums.

    * sparc.md: Don't emit nop after floating point compare; this is
    no longer needed.

    From Tom Wood:
    * sched.c (memrefs_conflict_p): Exchange xsize and ysize when x
    and y are exchanged.

Tue Dec 17 15:01:04 1991  Mark Eichin  (eichin at cygnus.com)

    * cp-decl.c (set_nested_typename): use SET_IDENTIFIER_TYPE_VALUE,
    not set_identifier_type_value, so that the binding doesn't get
    unwound by leaving class scope.

Tue Dec 17 10:57:12 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * toplev.c (main): Make -g0 produce no debugging information.

Tue Dec 17 15:15:20 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * gcc.c (do_spec_1): In %P, duplicate the names with __ just in front.

    * gstab.h: Renamed from stab.h.
    * collect2.c, dbxout.c, final.c, mips-tfile.c: #include changed.
    * dbxout.c (N_CATCH): Define this if stab.h does not.
    * Makefile.in: Depend on gstab.h where appropriate.

    * Makefile.in (STAGESTUFF): Remove collect and collect2.

    * c-parse.y (parmlist_2): Allow just `...' with no named args.
    * c-decl.c (get_parm_info): Pedantic warning for that usage.

    * final.c (final_scan_insn): Don't output blocks for -g1.

    * Makefile.in (crtbegin.o, crtend.o): Use -g0.

    * function.c (expand_main_function): Do nothing if INIT_SECTION_ASM_OP.

    * varasm.c (assemble_asm): Handle ADDR_EXPR of a STRING_CST.
    * stmt.c (expand_asm): Likewise.
    * c-parse.y (extdef, stmt): Accept STRING_CST or ADDR_EXPR in asm.

Tue Dec 17 15:01:11 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * m88k.h (INIT_SECTION_ASM_OP): Override svr[34].h.
    * m88kv4.h (INIT_SECTION_ASM_OP): Override svr4.h and m88k.h.
    * m88kdgux.h ({INIT,CTORS,DTORS}_SECTION_ASM_OP): Override m88k.h
    except when compiling crtstuff.c.

Mon Dec 16 21:50:42 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * stmt.c (struct case_node): Remove unused field `test_label'.
    (pushcase, pushcase_range): Don't initialize it.

    * stmt.c (check_for_full_enumeration_handling): Only print warnings
    if -Wswitch is specified.
    (expand_end_case): Call check_for_full_enumeration_handling even if
    -Wswitch is not specified.

    * expr.c (convert_move): Add missing arg to call to force_reg.
    (convert_to_mode): Likewise, for protect_from_queue.

Mon Dec 16 20:33:10 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * expr.c (expand_builtin): Check number and types of args.

    * c-parse.y (stmt, extdef): Allow constant expression inside plain asm.

    * m68k.md (movhi): Use asm_fprintf to print .set or equivalent.
    * m68k.c (print_operand_address): Use %R when printing pc register.
    * m68k.h (ASM_OUTPUT_INTERNAL_LABEL, ASM_GENERATE_INTERNAL_LABEL):
    Use %L.

    * c-typeck.c, cp-typeck.c (c_sizeof): Give error for incomplete type.

Mon Dec 16 11:14:28 1991  Ken Raeburn  ([e-mail])

    * cp-decl.c (init_decl_processing): Don't declare unused function
    __builtin_vec_delete.

Mon Dec 16 08:35:04 1991  Torbjorn Granlund  (tege at hal.gnu.ai.mit.edu)

    * gnulib2.c (__udivmoddi4): Add comment.

Mon Dec 16 07:47:13 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-call.c (ideal_candidate): Always set BEST before using it.
    Also, call `build_component_ref_1' with 3 args everywhere, and
    `build_indirect_ref' with 2 args everywhere.

Mon Dec 16 07:17:46 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * reload.h: Add `extern' to function declarations.
    (gen_input_reload): Add declaration.
    * reload1.c (reload): Allocate save area if caller-saves are needed;
    check for case when it becomes needed after some spill registers are
    obtained.
    Can now eliminate frame pointer even when caller-saves are needed.
    Perform register elimination of save area and see if caller-save needs
    a spill register.
    If required, find a spill register and pass it to caller-save code.
    (gen_input_reload): No longer static.
    * Makefile.in (caller-save.o): Now includes reload.h (again).
    * global-alloc.c (global_alloc): Can eliminate frame pointer even if
    we have caller-saves.
    * toplev.c (compile_file): Call init_caller_saves.

    * caller-save.c: Major rewrite; almost entirely new code.
    Integrate caller-saving with frame pointer elimination.
    Don't try to save and restore registers that cannot be directly
    copied to memory (such as MQ).
    Correctly place save and restore insns.
    Don't restore a saved register until end of block or if it is needed.

    * cse.c (mention_regs): Now returns int to indicate that the hash code
    may have changed.
    For COMPARE and comparison op, ensure that any register operand has
    a quantity number.
    (insert_regs): Return value from mention_regs.
    (rehash_using_reg): New function.
    (record_jump_equiv, mention_regs): Call rehash_using_reg if an operand
    of a compare is a REG whose hash code is changing.

Mon Dec 16 07:09:21 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * function.c (expand_main_function): New subroutine.  Call __main.
    * c-decl.c, cp-decl.c (store_parm_decls): Use that.
    * cp-decl.c (init_decl_processing): Don't declare __main.

    * objc-actions.c (init_objc): Call __objcInit as a constructor.

    * toplev.c (compile_file): Reenable SDB code #if 0'd before.

    * protoize.c (version_string): Make it extern.
    * Makefile.in (protoize, unprotoize): Link with version.o.

Sun Dec 15 23:31:47 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-tree.c (virtual_member): When recurring, don't dive into
    nonexistent baseclasses.

    * cp-decl.c (grokdeclarator): Set TREE_STATIC for initialized const
    arrays.
    * cp-typeck.c (mark_addressable): A decl that was TREE_STATIC might
    be chagned to TREE_EXTERNAL due to #pragma interface/implementation.

Sun Dec 15 14:57:23 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * Makefile.in (SYSCALLS.c.X): Fix typo.
    (INTERNAL_CFLAGS): Delete -DMERGED.

    * dbxout.c (dbxout_init): Pass proper args to ASM_OUTPUT_MAIN_*.
    * newpbb.h (ASM_OUTPUT_MAIN_SOURCE_FILENAME): Add proper arguments.

    * stmt.c (emit_case_nodes): Rewrite to change induction conditions.
    Handle boundedness in the bounded node itself.
    Handle branching entirely at the parent level.

    * gstdarg.h: Use va-i860.h.
    * va-i860.h (va_start for ANSI): Fix typo.  Call __builtin_next_arg.

Sat Dec 14 20:45:30 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * Makefile.in (USER_H): va-hp9k8.h should be va-hp800.h.

    * loop.c (invariant_p): Call-clobbered register is not invariant if
    loop has calls.
    (count_loop_regs_set): Count a CLOBBER as a setting of a register.

    * stmt.c: Move include of ctype.h and definition of cost variables to
    front of file.
    (expand_end_case): Always set use_cost_table.  Check type here instead
    of in estimate_case_costs.  Don't suppress use of cost table when
    not optimizing.
    (estimate_case_costs): Now returns int.  Check for any case tag
    that is an unusual control character here and reject use of table
    if so.  Always do comparisons signed, since that's how we access the
    cost table.
    (balance_case_nodes): Don't check for strange control characters here.
    (node_has_low_bound): Do checking if we don't have a left branch,
    instead of if we do.
    (node_has_{low,high}_bound): Remove spurious checks on branches.
    (emit_case_nodes): Ensure operation passed to emit_cmp_insn matches
    the branch we actually emit.
    Fix case of a range node with no left or right branch; use of case
    and default label were backward for the high test.
    Remove unused variables defaulted_{left,right}.

Sat Dec 14 16:10:11 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * protoize.c: Don't include limits.h.
    Rename `pathname' to `filename' everywhere.
    Clean up indentation of fprintf calls.
    Use standard GNU format for file name/line in error messages.
    (n_base_source_files): Renamed from base_source_files.
    (convert_filename, invocation_filename, base_source_filenames):
    `path' renamed to `filename'.
    (syscalls_absolute_filename): Renamed from syscalls_pathname.
    (find_file): Arg FILENAME no longer const.
    (main): Fix getcwd error-checking logic.
    (varargs_style_indicator): Delete `const'.
    (savestring): Declare arg `input' const.

    * Makefile.in (protoize, protoize.o, unprotoize, unprotoize.o):
    Use GCC_FOR_TARGET.
    (getopt.o, getopt1.o): Likewise.
    (GCC_FOR_TARGET): Delete -B./.
    (GCC_CFLAGS): Add -B./.  Copy ALL_CFLAGS's definition, less XCFLAGS.

    * cp-init.c (add_friends): Pass proper args to strncmp.

    * toplev.c (compile_file): Clear DECL_RTL for vars not really output.
    #if 0 possibly redundant code for SDB output.

    * sys-types.h: Include gstddef.h to get size_t and wchar_t.

    * ultrix.h (CPP_PREDEFINED): Add __unix, __ultrix, __bsd4_2.

    * Makefile.in (STAGESTUFF): Add collect, collect2.

Sat Dec 14 12:16:12 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-search.c (get_baselinks): Use obstacks right, instead of
    aborting when we know we're using them wrong.

    * cp-parse.y (structsp): Fix typo in exception declaration rule.

    * cp-typeck.c (build_modify_expr_1): Recursive call to
    `build_modify_expr_1' used pre-BINFO representation for
    BASETYPE_PATH argument.

    * cp-decl.c (start_decl): Don't switch to temporary allocation for
    decls of type REFERENCE_TYPE, as their initializers may live a long
    time, too.

Sat Dec 14 07:11:03 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * reload.c (find_reloads_toplev): If we have a SUBREG of a multi-word
    constant, try to extract just the word we want.

    * global-alloc.c (global_alloc): Correct reference to ELIMINABLES.

Fri Dec 13 15:28:38 1991  Michael Meissner  (meissner at osf.org)

    * configure (mips-mips-sysv): On MIPS System V, use xm-umips.h, not
    xm-mips.h.

    * gstddef.h (__PTRDIFF_TYPE__): Provide default definition in case
    non-GCC 2.00 compiler is used.
    (__SIZE_TYPE__): Ditto.
    (__WCHAR_TYPE__): Ditto.

Fri Dec 13 14:49:54 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * config.sub: Renamed from config.subr.
    Support os -sym1.
    Convert -svr3, -svr4 to -sysv3, -sysv4.
    * configure: Used new name.

    * Makefile.in (includes): Preserve files from GCC already in dir.

Fri Dec 13 11:01:12 1991  Fred Fish  (fnf at fishpond)

    * att386.h:  Fix unparenthesized macro arguments in
    ASM_OUTPUT_ASCII macro.

    * i386v4.h:  Select an assembly language syntax file and include
    it.  Supply missing macros from ones in i386v.h (TARGET_DEFAULT,
    VALUE_REGNO, FUNCTION_VALUE_REGNO_P).

    * svr4.h:  Fix misspelled variable name labelno (was labeno).

Fri Dec 13 09:07:22 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-typeck.c (build_component_ref): Call `assemble_external' as
    nec.
    (build_function_call_real): Call `assemble_external' as nec. for
    function calls we build.  Code slightly rearranged for clarity.
    * cp-call.c (build_method_call): Call `assemble_external' as nec.

Thu Dec 12 22:03:52 1991  Eric Youngdale (youngdale at v6550c.nrl.navy.mil)

    * make-cc1.com: Change message given to user. Change c-parse_tab.*
      to c-parse.*

    * config-gcc.com: Purge excess versions of version.opt.

Thu Dec 12 20:25:20 1991  Michael Meissner  (meissner at osf.org)

    * Makefile.in (BOOT_CFLAGS): Remove quotes around the argument,
    since this causes a syntax error when it is later expanded.

Thu Dec 12 17:53:55 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * config.subr: Add many new machines and some OS's.

    * va-i860.h: Rewrite from rfg.

    * toplev.c (main): Handle -dm on USG systems.

    * m68k.c (print_operand, print_operand_address): New functions.
    * m68k.h (PRINT_OPERAND, PRINT_OPERAND_ADDRESS): Just call them.

    * m68k.c (S_*, D_*): Delete the #undefs at the end.

    * stmt.c (expand_return): Special case if fcn returns void.

    * objc-actions.c (build_objc_method_call): Fix typo in NeXT case.

    * expr.c (expand_builtin, BUILT_IN_ARGS_INFO): Cast init of word_ptr.

    * protoize.c: Delete the `extern "C"' for C++ compilation.

Thu Dec 12 10:01:13 1991  Michael Meissner  (meissner at osf.org)

    * gbl-ctors.h (DO_GLOBAL_CTORS_BODY): Fix off by one error in
    handling the constructor list when a valid count is supplied.

    * collect2.c (write_hooks): Emit a count before the list of
    constructors, to go back to the old format.

    * collect-osf.c (write_s_file): Emit a count before the list of
    constructors, to go back to the old format.

    * gnulib2.c (exit): Provide default defintions as bss symbols for
    all of the constructor/destructor related symbols if the macro
    INIT_SECTION_ASM_OP is not defined.  The second link that collect
    does and/or gld will provide the right values.

    * decrose.h (HAVE_ATEXIT): Nuke macro, no longer used.
    * encrose.h (HAVE_ATEXIT): Nuke macro, no longer used.
    * i386rose.h (HAVE_ATEXIT): Nuke macro, no longer used.

Thu Dec 12 07:27:05 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * gbl-ctors.h (__CTOR_LIST__, __DTOR_LIST__): Renamed from *_BEGIN__.
    * collect-osf.c collect2.c: Rename here as well.

Thu Dec 12 04:15:22 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * c-parse.y (stmt): Make asm alternatives allow expr.
    * c-typeck.c (c_expand_asm_operands): Get the STRING_CST from the expr.

    * c-parse.y (datadecl, datadecls, lineno_datadecl): New rules.
    (xdecls): Use them.

Wed Dec 11 18:36:53 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * gbl-ctors.h (DO_GLOBAL_CTORS_BODY): Just one definition; use ON_EXIT.
    Test for -1 and handle both kinds of table format.
    * gnulib2.c (__do_global_dtors): Check for -1...
    (__do_global_ctors): Dummy defn of ON_EXIT if no other defined.
    (__main): Do nothing if called again.
    (exit): Use EXIT_BODY if defined.
    * crtstuff.c (__CTOR_LIST__, __DTOR_LIST__):
    Renamed from *_BEGIN__.  Add -1 as first elt.
    (__CTOR_END__, __DTOR_END__): Add 0 as last elt.
    (ON_EXIT): Dummy defn if no other is defined.

Wed Dec 11 18:08:36 1991  Mark Eichin  (eichin at cygnus.com)

    * cp-parse.y (template_parm): removed some reduce/reduce conflicts
    by noting which of identifier or identifier_defn would actually be
    passed up in this context.

Wed Dec 11 17:52:46 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * flow.c (propagate_block): Adjust loop depth if it is changed in
    notes at the end of a block.
    Abort if loop depth ever reaches zero.

Wed Dec 11 16:30:09 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * cccp.c (do_endif): Don't call record_control_macro at top level.

Wed Dec 11 14:45:42 1991  Mark Eichin  (eichin at cygnus.com)

    * cp-decl.c (set_identifier_type_value): If we're in a
    class_binding_level, shadow the type there.
    (xref_defn_tag): New function. Calls xref_tag with special flag set
    to indicate that we know we're defining something.
    (pushdecl_top_level): if class_binding_level is set, search from it
    instead of only from current_binding_level when trying to find
    shadowed values. This is in support of tests m5.cc through m8.cc,
    which broke after the changes for m9.cc were installed.

    * cp-spew.c (do_aggr): New function. Looks ahead from AGGR to see if
    we have AGGR identifier { or AGGR identifier : which are both
    definitions, and passes up identifier_DEFN instead. This is in
    support of test m9.cc.
    (yylex): add SPEW_DEBUG case after EMPTY, so we don't have gaps in
    the displayed stream.
    (yylex, case AGGR): added call to do_aggr.
    (debug_yychar): added call to debug_yytranslate for proper
    translations.

    * cp-parse.y (debug_yytranslate): New function to support SPEW_DEBUG
    translations.
    (TYPENAME_DEFN): new token, TYPENAME seen by do_aggr.
    (IDENTIFIER_DEFN): new token, ditto.
    (PTYPENAME_DEFN): new token, ditto.
    (identifier_defn): corresponds to identifier, but when the
    identifier has been seen by do_aggr.
    (named_class_head_sans_basetype_defn): specially recognize aggr
    identifier_defn.
    (named_class_head): add parallel clauses calling xref_tag_defn when
    we know we're defining this aggr.
    (named_class_head_sans_basetype_defn_either): for when we don't care
    if it is a defn or not (such as templates)
    (identifier_either): ditto.

    * cp-tree.h (xref_defn_tag): New declaration.

Wed Dec 11 12:37:51 1991  Ken Raeburn  ([e-mail])

    * cp-parse.y (label_colon): New nonterminal, with all label prefixes
    from "stmt" moved here.
    (stmt): Use it.  Also provide useful message for label followed by
    end of block (close-brace).

    * cp-init.c (BIVN): Deleted unused variable.
    * cp-decl.c (init_decl_processing): Don't declare function
    __builtin_vec_new; it's never used.

Wed Dec 11 10:59:48 1991  Michael Meissner  (meissner at osf.org)

    * toplev.c (main): Complete last change from RMS, use variable
    'level' which used to be named 'arg'.

    * gbl-ctors.h (DO_GLOBAL_CTORS_BODY): Don't reference ON_EXIT for
    those poor systems without atexit or on_exit.

Wed Dec 11 09:06:52 1991  Jeffrey A. Law  (law at wombat.gnu.ai.mit.edu)

    * m68k.c (output_function_prologue, output_function_epilogue):
    When saving/restoring only 2 registers, do so with two "movel"
    instructions instead of a single "moveml".  This results in
    faster code for the 68020 and later machines.

Wed Dec 11 06:45:08 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * x-romp (MAKE): Add definition; the supplied `make' doesn't define it.

Tue Dec 10 22:17:50 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * combine.c (try_combine): Always make a copy of I2's pattern if
    it will be used in a PARALLEL (`added_sets_2' nonzero).

    * Makefile.in (BOOT_CFLAGS): New parameter.
    (bootstrap*): Use it.

    * flow.c (find_basic_blocks): Set depth of last insn, not first,
    into basic_block_loop_depth.
    (propagate_blocks): Use consistently with new definition.

    * cse.c (cse_end_of_basic_block, cse_basic_block): Remove previous
    change; it can cause loops following around branches.

    * Makefile.in (USER_H): Add va-hp9k8.h.

Tue Dec 10 17:22:01 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * m88k*.h: Include svr3.h as the default.  m88kv4.h and m88kdgux.h
    include svr4.h.  Override svr[34].h as needed.
    * t-m88k, t-m88kv4: Specify EXTRA_PARTS.

    * m88k.c (uses_arg_area_p): Check current_function_varargs.

Tue Dec 10 15:41:03 1991  Michael Meissner  (meissner at osf.org)

    * osf-main.c (whole file): Delete, since the constructor stuff was
    moved to gnulib2.c.

    * Makefile.in (collect2, collect2.o): Change to use the default
    compiler to build collect2, instead of the newly built GCC, since
    otherwise, collect2 will create a circular dependency.  Also, pass
    LDFLAGS when linking.

    * collect-osf.c (write_s_file): Change to the new way of doing
    constructors and destructors of having an end marker instead of a
    count.

    * collect.c (REAL_AS_PATH, REAL_LD_PATH, REAL_NM_PATH): New macros
    to allow cross compilers to specify where the real linker,
    assembler, and nm live.
    (NM_FLAGS): New macro to allow a configuration to change what flags
    get passed to nm.
    (alloca defines): Remove alloca defines, since config.h provides
    them.
    (write_hooks): Change to the new way of doing constructors and
    destructors of having an end marker instead of a count.  Cast all
    alloca calls to be the appropriate pointer type.  Put both
    constructors and destructors into the data section, because the MIPS
    tools do not like non-instructions in the .text section.

    * decrose.h (HAVE_ATEXIT): Define, OSF/1 has atexit.
    (FULL_PROTOTYPES, NO_CONST_IN_SYSCALL): Remove, no longer used.

    * encrose.h (HAVE_ATEXIT): Define, OSF/1 has atexit.
    (FULL_PROTOTYPES): Remove, no longer used.

    * i386rose.h (HAVE_ATEXIT): Define, OSF/1 has atexit.

    * t-decrose (LIB2FUNCS_EXTRA): Remove, osf-main.c is no longer
    needed, since constructor/destructor support moved into gnulib2.c.

    * t-encrose (LIB2FUNCS_EXTRA): Remove, osf-main.c is no longer
    needed, since constructor/destructor support moved into gnulib2.c.

    * t-i386rose (LIB2FUNCS_EXTRA): Remove, osf-main.c is no longer
    needed, since constructor/destructor support moved into gnulib2.c.

    * t-decstatn (CCLIBFLAGS, GNULIB2_CFLAGS): Define so that gnulib1
    and gnulib2 are both compiled with -G 0, in case the users compiles
    and links this way.  It also fixes a bug where the constructors and
    destructors that collect2 produces are in the big data section, but
    gnulib2 thinks they are in the small data section, because it only
    sees a pointer.
    (ld): Add -f to remove old ld link to collect2, if it exists.

    * t-mips (CCLIBFLAGS, GNULIB2_CFLAGS): Define so that gnulib1
    and gnulib2 are both compiled with -G 0, in case the users compiles
    and links this way.  It also fixes a bug where the constructors and
    destructors that collect2 produces are in the big data section, but
    gnulib2 thinks they are in the small data section, because it only
    sees a pointer.
    (ld): Add rule to link collect2 to ld.
    (EXTRA_PASSES): Build collect2 (aka ld).

    * xm-mips.h (alloca): If not GNU C, declare alloca to be char *.

    * mips-tfile.c (add_aux_sym_tir): Move code to record bitfield size,
    so that it agrees with MIPS ECOFF practice, rather than the
    documentation, which affects enum bitfields.  Changes from Per
    Bothner.

Tue Dec 10 14:10:10 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * gbl-ctors.h (DO_GLOBAL_CTORS_BODY): Get rid of __reverse_order, etc.
    * gnulib2.c (__do_global_dtors): Remove & before arrays.

    * configure: Set a default value for xm_file.
    Remove redundant defaulting of cpu_type.

    * svr4.h (ASM_DECLARE_FUNCTION_SIZE): Output internal label properly.

    * function.c (assign_parms): Set current_function_args_info.
    * output.h: Declare that var.
    * tree.h (BUILTIN_ARGS_INFO): Renamed from BUILT_IN_VARARGS.
    * expr.c (expand_builtin): Implement __builtin_args_info.
    * c-decl.c (init_decl_processing): Declare it.
    * va-i860.h: Use it.
    Also update order of elements in struct __va_ctl.

    * toplev.c (main): Eliminate -gsdb and -gdbx.
    Clean up setting of use_gdb_dbx_extensions.

Tue Dec 10 10:33:58 1991  Tom Wood  (wood at gen-rtx)

    * svr4.h (ASM_DECLARE_FUNCTION_SIZE): Use an internal label.

Tue Dec 10 07:12:28 1991  James Van Artsdalen  (james@raid)

    * Makefile.in (crtbegin.o, crtend.o): crstuff.c is in $(srcdir).

Tue Dec 10 06:56:26 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-decl.c (kept_level_p): New function, borrowed from c-decl.c.
    * cp-parse.y (compstmt): Call it.

Mon Dec  9 18:37:32 1991  Ken Raeburn  ([e-mail])

    * cp-decl.c (grok_enum_decls): Don't give warning for class-local
    enum types; this is a perfectly reasonable usage.

Mon Dec  9 12:23:48 1991  Ron Guilmette  (rfg at ncd.com)

    * toplev.c (main):  Check that no extra chars follow the level #
    in a -gNNN option.  Also check that the debugging level requested
    is between 0 and 3 (inclusive).

Mon Dec  9 20:34:48 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * sched.c (schedule_block): Don't crash if `line' is zero.
    (schedule_insns): Initialize line_note_head.

Mon Dec  9 15:31:46 1991  Michael Meissner  (meissner at osf.org)

    * mips-tfile.c (pseudo_ops array): Correctly size the .stabs and
    .stabn elements.

    * mips.c (function_prologue, function_epilogue): Use assemble_name
    to print the current function, instead of fprintf, in case there is
    a  leading '*'.

    * mips-news.h (CPP_PREDEFINES): Define news3700, not news7300.

    * mips.md (ashldi3_internal3): Fix typos.
    (ashrdi3_internal3): Ditto.
    (lshldi3_internal3): Ditto.

Mon Dec  9 11:49:52 1991  Torbjorn Granlund  (tege at hal.gnu.ai.mit.edu)

    * longlong.h (__a29k__ udiv_qrnnd): Change "q" to "1" for operand
    2 constraint.

Mon Dec  9 11:22:58 1991  Ken Raeburn  ([e-mail])

    * cp-typeck.c (build_x_function_call): A method might have type
    pointer-to-method as well.  Don't build an OFFSET_REF for any
    "function" that already has pointer type.  Only use
    DECL_CLASS_CONTEXT to find type of `this' for FUNCTION_DECLs; for
    method pointer expressions, look up the basetype of the method type.
    (build_unary_op): Fix comment in typo.

    * cp-tree.c: Fix typo in comment at start of file.

Mon Dec  9 07:17:13 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * cse.c (cse_insn): When a jump is converted to unconditional,
    delete the dead code, but leave the notes.
    (cse_basic_block, cse_end_of_basic_block): Some unconditional jumps are
    part of the basic block.
    (cse_basic_block): Add missing arg to cse_end_of_basic_block call.

Mon Dec  9 07:16:15 1991  Ron Guilmette  (rfg at ncd.com)

    * sys-types.h:  New file.
    * sys-protos.h:  New file.
    * SYSCALLS.c: Just include those files.

    * protoize.c (VOLATILE):  Define this symbol conditionally so that
    it can be used to declare GNU `volatile' functions.
    (abort):  Added VOLATILE extern declaration (but not if it's a macro).
    (kill, fork):  Added extern declaration.
    (substr): Declare c as int.

    * gbl-ctors.h: New file.
    * crtstuff.c: Include gbl-ctors.h.
    (INIT_SECTION_ASM_OP):  Delete default definition.
    Only compile .init section code if INIT_SECTION_ASM_OP is defined.
    (pointer):  Globally changed to `func_ptr'.
    * Makefile.in (crtbegin.o, crtend.o, gnulib2): Depend on gbl-ctors.h.
    * gnulib2.c:  Added definition of __builtin_saveregs for i860/svr4
    and fixed up definition of __builtin_saveregs for i860/non-svr4.
    (__bb_avoid_warning):  Added explicit return type.
    (__builtin_new, __builtin_vec_new, __builtin_delete,
    __builtin_vec_delete): Use `void*' where appropriate.
    (exit): Change conditional to ON_EXIT.  Make dummy if no real exit.
    Include gbl-ctors.h.
    (__main): Change conditional to INIT_SECTION_ASM_OP.
    (__do_global_ctors): Conditional on INIT_SECTION_ASM_OP.
    Use DO_GLOBAL_CTORS_BODY for the guts.
    Include gbl-ctors.h.

Mon Dec  9 01:07:56 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * fixinc.svr4: Don't change #ident or assertion tests.
    Don't install inline.h.

    * c-common.c (get_directive_line): Declare c as int.

    * configure: Create additional file tconfig.h.
    * protoize.c: Include that, not tm.h.
    * Makefile.in (protoize.o, unprotoize.o): Depend on tconfig.h.

    * svr4.h (HAVE_ATEXIT): Defined.
    * gnulib2.c (_main, exit): Use HAVE_ATEXIT to control use of atexit.

    * final.c (final_scan_insn): Output first and last note in a series.

    * objc-actions.c (build_objc_method_call):
    New arg LOOKUP_OBJECT.
    (build_message_expr): Pass RECEIVER for LOOKUP_OBJECT.
    Pass RECEIVER or self_decl as OBJECT.

    * unx386.h (PRINT_IMMED_PREFIX, PRINT_OFFSET_PREFIX): Deleted.

    * rtl.h: Undef FLOAT.

    * svr4.h (ASM_DECLARE_OBJECT_NAME, ASM_DECLARE_FUNCTION_SIZE):
    Fix typo.

Sun Dec  8 21:46:51 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * protoize.c (main): Declare `value'.
    (abspath): Declare endp.  Declare and set outp and inp.

    * cp-decl.c (sigsegv): Function deleted.
    (init_decl_processing): Don't use it.
    Also don't include signal.h.

    * t-svr4: New file.
    * configure (i386-*-sysv4*, i860-*-sysv4*): Use that file.

Sun Dec  8 12:01:36 1991  Ron Guilmette (rfg at ncd.com)

    * fixinc.svr4: New file.

    * final.c (profile_function): Specify return type.
    (get_attr_length):  Added a return statement to prevent warnings.

    * final.c (final_scan_insn):  Switch to .text section before output
    of jumptable lable (if requested by JUMP_TABLES_IN_TEXT_SECTION).
    Don't switch sections again after the label.

    * configure (i386-*-sysv*):  Configuration deleted.
    (i386-*-sysv3, i386-*-sysv4, i860-*-sysv3, i860-*-sysv4):
    Added assignment to `tmake_file' (to pick up def of EXTRA_PARTS).
    (i860-*-sysv3, i860-*-sysv4):  Added assignment to `xmake-file'.
    (i860-*-sysv3):  Deleted bogus GAS related stuff.

    * combine.c (combinable_i3pat):  Added explicit return type.

    * i860.h (TARGET_FPU):  Deleted this target flag.  i860 fpu is on chip.
    (TARGET_XP):  New target flag for XR and XP models.
    (TARGET_FLAGS, HARD_REGNO_MODE_OK):  Adjusted for above changes.
    (REG_ALLOC_ORDER): Use first the regs less likely for other purposes.
    (LITERAL_COMPARE_BETTER_UNSIGNED):  Defined.
    (BRANCH_COST): Defined.
    (CC_ONLY_*):  Deleted these obsolete defines.
    (CC_NEGATED):  Added for IEEE behavior with cmpgesf and cmplesf.
    (ASM_OUTPUT_CASE_LABEL):
    Added .align so assembler doesn't barf on subsequent .long(s).
    (FLOAT_TYPE_VALUE, INTIFY, FLOATIFY, FLOAT_ARG_TYPE):
    Added definitions needed to build a useable gnulib1 library.

    * i860.md:  Removed all references to CC_ONLY_* symbols.
    (cmpledf, cmpgedf):  Adjusted assembler code  as suggested
    by i860 manuals, for IEEE results.
    (cbranch, flipped_cbranch, inverse_cbranch, flipped_inverse_cbranch):
    Check for CC_NEGATED.
    (bte, btne patterns): Complete rewrite.
    (anonymous sign-extend patterns): Moved before the named patterns.

    * i860.md (addsi3, subsi3):  Disparaged alternatives with a floating-
    pointer input register to avoid complicated reloading problem.
    (negsi2):  Deleted bogus `I' constraint on operand 1.
    (divdf3, divsf3):  Added additional continuation characters
    needed to make lines acceptable to `read_rtx' in the gen* programs.

    * i860.c:  Include "flags.h" to get access to `optimize' flag.
    (leaf_function_p):  Added extern declaration.
    (zero_operand): New function.
    (must_preserve_r1, must_preserve_bytes): New variables.
    (function_prologue, function_epilogue):
    Support treatment of return-address reg (r1) in leaf functions.

    * i860v4.h (CPP_PREDEFINES):  Add pre-assertions for i860/svr4.
    (CPP_SPEC):  Deleted definition.
    (TYPE_OPERAND_FMT):  New definition.
    (ASM_OUTPUT_FUNCTION_PREFIX):  #undef before defining.
    (ASM_OUTPUT_EPILOGUE_SUFFIX):  Deleted obsolete macro.
    (CTORS_SECTION_ASM_OP, DTORS_SECTION_ASM_OP,
    TDESC_SECTION_ASM_OP, EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS,
    TDESC_SECTION_FUNCTION):  Definitions added.

    * i860v3.h: Complete rewrite.  Uses svr3.h.

    * i386v4.h:  Don't include i386v.h.  Include i386.h instead.
    (SDB_DEBUGGING_INFO):  #undef deleted.
    (ASM_OUTPUT_DWARF_STRING):  Added definition.

    * gcc.c (default_compilers):  Pass -g* options to cpp.

    * gcc.c (do_spec_1):  Don't duplicate -A options in CPP_PREDEFINES.

    * gnulib2.c (exit, __main, __do_global_dtors, __do_global_ctors):
    New functions.

    * i386.h (PRINT_IMMED_PREFIX, PRINT_OFFSET_PREFIX):
    Define here, and use IP.

    * i386.h: Don't include syms.h or define FILNMLEN.

    * x-i860v3, x-i860v4: New files.
    * x-i386v4 (CCLIBFLAGS, GCC_CFLAGS):  Added definitions.

    * xm-svr3.h:  New file.
    * xm-i86v3.h, xm-i86v4.h, xm-i386v.h: Rewritten.
    * xm-i38v4.h: New file.

    * svr4.h (LIB_SPEC):  Make crtend.o come before any *crtn.o
    file (to avoid hitting return without standard epilogue in .init code).
    (INIT_SECTION_ASM_OP):  Added definition for crtstuff.c (and friends).
    (CTORS_SECTION_FUNCTION, DTORS_SECTION_FUNCTION):
    Adjusted indentation of continuations to match those in rest of file.

    * svr3.h (CPP_PREDEFINES):  Don't define this here.
    (ASM_FILE_START_1):  Provide no-op default definition.
    (ASM_OUTPUT_COMMON, ASM_OUTPUT_LOCAL):  Undef these before defining.
    (INT_ASM_OP, USE_CONST_SECTION, INIT_SECTION_ASM_OP,
    CONST_SECTION_ASM_OP, CTORS_SECTION_ASM_OP, DTORS_SECTION_ASM_OP,
    EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS, READONLY_DATA_SECTION,
    CONST_SECTION_FUNCTION, CTORS_SECTION_FUNCTION, DTORS_SECTION_FUNCTION,
    ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR, SELECT_SECTION,
    SELECT_RTX_SECTION):  Definitions added.

Sun Dec  8 15:27:56 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

       * next.c (handle_pragma): Use get_directive_line.

    * gnulib2.c (__do_global_dtors, __do_global_ctors):
    Remove the feature to control the order of execution.
    This is not a clean solution to the overall problem.

Sun Dec  8 14:47:44 1991  Michael Meissner  (meissner at osf.org)

    * mips-tfile.c (toplevel, add_local_symbol, parse_stabs_common):
    More changes for smuggling stabs through from [e-mail] and
    [e-mail].

    * mips.h (ignore_line_number): New global, set when we must avoid
    putting out a MIPS ECOFF .loc because the file changed inside of a
    function, and we are also putting out stabs, which can handle this.
    (ASM_STABS_OP, ASM_STABN_OP, ASM_STABD_OP): Define to put a comment
    in front of the pseudo op, if we are encapsulating stabs in MIPS
    ECOFF.
    (ASM_OUTPUT_SOURCE_FILENAME): Change to call mips_output_filename.
    (ASM_OUTPUT_SOURCE_LINE): change to call mips_output_lineno.

    * mips.c (toplevel): Include stab.h for encapsulating stabs.
    (ignore_line_number): New global variable.
    (reg_or_0_operand): Call register_operand for REG's as well as
    SUBREG's.
    (override_option): Don't allow ints in FP registers unless -mdebugh.
    (mips_output_filename): New function to write the filename to the
    assembler output.  Add special support for encapsulating .stabs in
    MIPS ECOFF.
    (mips_output_lineno): New function to write the line number to the
    assembler output.  Add special support for encapsulating .stabs in
    MIPS ECOFF.
    (function_epilogue): Clear ignore_line_number.

    * mips.md (fix_trunc??si_opt, mov??_internal): Change '!' constraint
    back to '*'.

Sat Dec  7 16:58:57 1991  Ken Raeburn  ([e-mail])

    * cp-spew.c (scan_tokens): Stop scanning at semi-colon.

    * cp-spew.c: Made SPEW_DEBUG code useable:
    (yylex): Use stderr in SPEW_DEBUG code.
    (yytags): Deleted table.
    (debug_yychar): Print to stderr, and don't try finding translations
    for values over 256.

    * cp-class.c (push_lang_context): Fix typo in comment.

    * cp-decl.c (finish_decl): Undo `pushclass' done in start_decl for
    top-level decls of methods.

    * cp-lex.c (restore_pending_input): Cast 0 to pointer type for
    obstack_free.

    * cp-pt.c (do_pending_expansions): Use TREE_USED instead of
    TREE_ADDRESSABLE for functions.  Put in comments explaining why we
    compile unused methods of classes that are interface-unknown: the
    file initializer/cleanup functions might need them.
    (mumblefrotz): Delete unused function; this code is in cp-parse.y.

Sat Dec  7 15:46:55 1991  Timothy Moore ([e-mail])

    * function.c: Handle ARGS_GROW_DOWNWARD.
    (pad_below, pad_to_arg_alignment, round_down): New subroutines.
    (locate_and_pad_parm): Use them, for the existing case.
    Also handle the ARGS_GROW_DOWNWARD case, using them.

Sat Dec  7 15:46:55 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * tree.h (DECL_ARG_TYPE_AS_WRITTEN): New macro.
    * c-decl.c (grokdeclarator): Store value there.

    * m68k.c (output_function_prologue, output_function_epilogue):
    Support MOTOROLA syntax.

    * toplev.c (main): Testing for -ggdb catches -g also.
    Default use_gdb_dbx_extensions to 1 for -gstabs, 0 for -gdbx.
    Specified default is for -g.

    * cccp.c (handle_directive): Store start address in directive_start.
    (do_xifdef): Use that, checking if at start of file.
    (do_endif): Compute ep properly.

    * protoize.c (abspath): Fix errors referencing argument cwd.
    (main): Allocate big enough buffer for getcwd.
    Don't clobber varargs_style_indicator, copy it.
    (savestring): New function.

Sat Dec  7 00:53:16 1991  Ron Guilmette  (rfg at ncd.com)

    * c-decl.c (warn_redundant_decls, warn_nested_externs): New vars.
    (c_decode_option): Support -Wredundant-decls and -Wnested-externs.
    (pushdecl): Print those warnings.
    * c-tree.h (warn_redundant_decls, warn_nested_externs): Declared.

    * c-decl.c (pending_xref_error, c_mark_varargs):  Added return type.

    * cccp.c (main):  Added code to support the presence of -A (assertion)
    options within CPP_PREDEFINES.

    * c-lang.c: Minor cleanups.

    * c-lex.c (check_newline):  Added support for the -g3 option.

    * dwarfout.c (type_tag):  Fixed bug in gcc Dwarf generation for
    tagged types.

    * dwarfout.c (output_decl):  Added two pre-checks to see if nodes
    are ERROR_MARK nodes before using them.

    * dwarfout.c (generate_new_sfname_entry):  Function added.

    * dwarfout.c (lookup_filename):  Call generate_new_sfname_entry
    as soon as each new source filename is added to the list of
    known filenames (thus avoiding an m68k forward-ref assembler bug).

    * dwarfout.c (dwarfout_line):  Initialize prev_file_entry_num to
    (unsigned) -1 rather than zero to avoid bogus suppression of
    first .debug_sfnames section entry.

    * dwarfout.c (compare_filename_entries):  Function deleted.  (It's
    no longer needed.)

    * dwarfout.c (dwarfout_finish):  Don't generate .debug_sfnames
    section entries here anymore.  (See lookup_filename.)

    * Makefile.in (realclean): Delete c-parse.h.
    Delete objc-parse.output just once.

Fri Dec  6 17:49:28 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * cse.c (FIXED_BASE_PLUS_P): The frame or argument pointer itself is
    a fixed address.
    (find_comparison_args): If we find something equivalent to a
    fixed address, return the fixed address.

    * combine.c (try_combine): Don't access new_i2_notes if it hasn't been
    defined (it isn't defined unless newi2pat != 0).

Fri Dec  6 16:01:02 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * rtl.h (enum reg_note): Define two new values REG_DEP_ANTI,
    REG_DEP_OUTPUT, which are used to mark LOG_LINKS.
    * rtl.c (reg_note_name): Likewise.
    (add_dependence): Return void.  New parameter DEP_TYPE to indicate
    type of dependence.

    * sched.c: Major rewrite to delete much obsolete code, correct many
    comments, delete unused variables, etc.  Modify all callers of
    add_dependence to pass new argument.  Significant changes are:
    (reassign_dependence): Deleted, was unnecessary.
    (priority): Account for type of dependence when calculating
    priority.
    (flush_pending_lists): New function.  Encapsulate code which makes
    dependencies between an INSN and every insn on the
    pending_read_insns and pending_write_insns lists.
    (rank_for_schedule): Account for type of dependence with last
    scheduled insn when deciding which ready insn to schedule next.
    (launch_link): Give all birthing insns the same priority.
    (schedule_block): Only sort the ready list once, after all ready
    insns have been added to it.
    (schedule_block): When deciding what REG_DEAD notes are needed on a
    just scheduled insns, process all sets first (sched_note_set) then
    process all uses (attach_deaths_insn).
    (attach_deaths): Simplified by above change.
    (sched_note_set): Likewise.
    (update_flow_info): Renamed from update_links, since it no longer
    does anything with LOG_LINKS.  Sched_analyze_insn creates all
    necessary new LOG_LINKS already.
    (schedule_insn): Delete no op move insns after reload.

Fri Dec  6 13:33:48 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * crtstuff.c: Give permission to link with non-free programs.

    * toplev.c (flag_inhibit_size_directive): New var and -f option.
    * svr4.h (ASM_DECLARE_OBJECT_NAME, ASM_DECLARE_FUNCTION_SIZE): Use it.
    * Makefile.in (crtbegin.o, crtend.o): Use that option.  Use -g1.

Fri Dec  6 08:42:53 1991  Ron Guilmette  (rfg at ncd.com)

    * Makefile.in (STAGESTUFF):  Added __main and _exit to support g++.

    * c-common.c (c_expand_expr_stmt):  Made return type explicit.

    * c-common.c: (get_directive_line):  Function added to support -g3.

Fri Dec  6 04:50:39 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-tree.h (OPERATOR_ASSIGN_CHARS_P): Flushed.
    * cp-decl.c (grok_op_properties): Flush OPERATOR_ASSIGN_CHARS_P.
    * cp-init.c (add_{friend,friends}): Ditto.

Thu Dec  5 22:31:12 1991  Jeffrey A Law  (law at super.super.org)

    * m68k.h (CONST_COSTS): Show that constants which can be easily
    generated are less expensive than most.

    * m68k.md (movsi): Use two instruction sequences to load constants
    which are just outside moveq's range (within 8 of moveq's range).
    Likewise for positive even constants within twice moveq's range.

Thu Dec  5 20:17:13 1991  Eric Youngdale (youngdale at v6550c.nrl.navy.mil)

    * config-gcc.com: Generate a file 'version.opt' which will be given
      to the VMS linker to put the gcc version number in the image
      header version number field.

    * make-cc1.com: Compile c-lex.c when building gcc and objc, and
      add c-lex.obj to the list of files given to the linker.
      Add version.opt to the list of files given to the linker.

    * make-cccp.com: Add version.opt to the list of files given to the
      linker.

Thu Dec  5 23:04:20 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * combine.c (make_extraction): Don't make a STRICT_LOW_PART of a MEM;
    clean up comments so they agree with the code.

    * combine.c (try_combine): Correct test for when we can safely change
    the mode of a pseudo; can't if it doesn't die in I3.

    * c-decl.c (WCHAR_TYPE_SIZE): Deleted; never used.
    * c-common.c (WCHAR_TYPE_SIZE, WCHAR_BYTES): Deleted, no longer needed.
    (combine_strings): Use size of `wchar_type_node' to get number of
    bytes in wchar_t.
    * next.h (WCHAR_TYPE_SIZE): Delete; no longer used.

    * cse.c (cse_main): Add new argument to cse_basic_block_call.
    Don't call cse_around_loop here.
    (cse_basic_block): Call cse_around_loop from here while we still
    have our arrays allocated.

    * combine.c (simplify_comparison): Fix error in last change; don't
    reference TEM before it is set.

    * toplev.c (fatal_insn_not_found): Flush all files before aborting.

Thu Dec  5 21:42:29 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * objc-actions.c (build_objc_method_call): Eval OBJECT and SELECTOR
    only once.  Always pass self_decl as self to the method.

Thu Dec  5 14:52:16 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * ccrtstuff.c, gnulib2.c, protoize.c: Include tm.h not config.h,
    since these are complied for the target, host defines do not apply.

Thu Dec  5 14:52:24 1991  Michael Meissner  (meissner at osf.org)

    * dbxout.c (ASM_STABS_OP, ASM_STABN_OP, ASM_STABD_OP): If
    not defined, define as .stabs/.stabn/.stabd respectively.  Change
    all places emitting stabs to use the macros.
    * cp-decl2.c: Ditto.
    * cp-gc.c: Ditto.
    * final.c: Ditto.
    * varasm.c: Ditto.
    * gcc.texinfo: Document ASM_STAB[DNS]_OP macros.

Thu Dec  5 12:03:40 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * gcc.c (process_command): Don't put `.' on startfile_prefix.
    Cast result of alloca.

    * config/*.h (ASM_OUTPUT_ASCII): Put parens around all uses of args.

    * hp800.h, hp800.c, hp800.md, xm-hp800.h: New files.
    * va-hp800.h: New file.
    * gvarargs.h: Use va-hp800.h if needed.
    * config.subr, configure: Add alternatives for hp800, hp700.

Thu Dec  5 09:35:15 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-search.c (note_debug_info_needed): Do the right thing for
    static member functions.

Thu Dec  5 01:25:13 1991  Michael Tiemann  (tiemann at mole.gnu.ai.mit.edu)

    * version.c: Now 1.96.

Wed Dec  4 23:17:23 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * reorg.c (try_merge_delay_insns, fill_simple_delay_slots): Correctly
    update NEXT_TRIAL after possibly splitting an insn.

Wed Dec  4 17:03:11 1991  Jim Wilson  (wilson at sphagnum.cygnus.com)

    * gplus.gperf: Add throw and template keywords.  Update private,
    protected, and public definitions.

    * print-tree.c (print_node): Add missing indentation argument to
    print_node call for values field.

Wed Dec  4 18:39:33 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * objc-actions.c (build_objc_method_call): Define as static.

Wed Dec  4 17:04:49 1991  Michael Meissner  (meissner at osf.org)

    * mips-tfile.c (add_varray_page, alloc_type enum): Keep track of how
    many pages we allocated for varrays as well as the small stuff.
    (stabs_filename): New static to hold the special filename used for
    passing stabs through.
    (parse_stabs_common, parse_stabs, parse_stabn): New functions to
    smuggle stabs through to the debugger.  Stabs must be commented out,
    just like the other debug directives.
    (add_local_symbol): Check hash_ptr to see if it's null before
    storing into it, in case no name is passed.
    (add_file): Add support for the special stabs file.
    (copy_object): Before copying the external symbols, figure out the
    file indexes of each of the files, and then explicitly remap the
    original file indexes of the external symbol to be the new file
    index.  If this isn't done, then bad file numbers can get generated
    if a filename is repeated.
    (various): Change the name of small_alloc to alloc_counts, since we
    now track large memory allocations as well.

    * mips-tdump.c (toplevel): Delete unnecessary include file stamp.h.

Wed Dec  4 11:05:04 1991  Michael Collison  (collison at osf.org)

    * encore.h (ASM_OUTPUT_LABELREF_AS_INT): add definition
    * ns32k.h: ditto

    * ns32k.h (ASM_OUTPUT_LABEL, ASM_GLOBALIZE_LABEL): If COLLECT is
    defined provide alternate definitions

    * encrose.h (ASM_OUTPUT_INT): If COLLECT is defined provide
    alternate definition

Wed Dec  4 01:39:07 1991  Ken Raeburn  ([e-mail])

    * cp-pt.c (end_template_decl): For method templates, pop the class
    binding level before the others rather than after.

    * cp-class.c: Added DEBUG_CP_BINDING_LEVELS code.  Include cp-decl.h
    if that symbol is defined, but don't list it in Makefile.in since
    that's not the normal mode.
    (pushclass): Print messages and frob indentation level.
    (popclass): Likewise.

    * cp-spew.c (yylex): If identifier_type says PTYPENAME, and
    following token is "<", force looking_for_typename to be
    non-negative.

    * cp-pt.c (mangle_class_name_for_template): Drop extra spaces
    between last parm and closing ">".  Print a message before aborting
    if a parm type isn't handled.

    * cp-decl.c (maybe_globalize_type): Don't do it if the identifier
    that names the type doesn't currently have a type value.

Wed Dec  4 01:06:28 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-decl.c (finish_enum): Call `rest_of_type_compilation' for
    ENUMTYPE.
    * cp-class.c (finish_struct): Ditto.
    * cp-decl.c (pushtag): Set TYPE_STUB_DECL.
    * cp-search.c (note_debug_info_needed): Call
    `rest_of_type_compilation' if we notice we need debug info for TYPE.
    * dbxout.c (dbxout_init): Fix typo in comment.

    * cp-parse.y (DOT_STAR): New token.
    (expr_no_commas): Handle DOT_STAR expressions.
    * cp-lex.c (real_yylex): Recognize DOT_STAR.  Also, rearrange
    scanner to make it more efficient.

    * cp-decl.c (maybe_build_cleanup): When building cleanups, pass
    TYPE_MAIN_VARIANT to `build_delete'.

Tue Dec  3 22:52:33 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * flow.c (mark_set_1): Make a REG_UNUSED note not a REG_DEAD note
    for the part of multi-word hard registers not needed.

Tue Dec  3 22:34:13 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * configure: Support --objdir.

    * objc-parse.y: Get rid of many static decls.
    Reorder all token definitions to match c-parse.y.
    (recognize_objc_keyword): New function.
    * c-lex.c (token_buffer): No longer static.
    (yylex): For @, call recognize_objc_keyword.  Don't use keyword table.
    * c-lang.c (recognize_objc_keyword): Dummy definition.

    * objc-actions.c (build_objc_method_call) [!NEXT_OBJC_RUNTIME]:
    Pass selector as arg to the method.
    Always cast the method to a function type.

    * xm-sparc.h (alloca): If using Sun CC, include alloca.h.
    If using GCC, define as __builtin_alloca the way other machines do.

    * cccp.c (print_containing_files): Print the nominal file names.

Tue Dec  3 16:54:04 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * jump.c (jump_optimize): If branches are expensive, convert jumps
    around increments or decrements by one into an increment by the
    conditional expression.

    * combine.c (simplify_comparison): Don't remove a SUBREG unless
    it doesn't affect either operand.

    * cse.c (find_comparison_args): Rework so that we can correctly
    fold comparisons on machines that set CC0 to the result of a
    condition test, not just a COMPARE.
    (cse_insn): Don't set THIS_INSN_CC0 to a constant if we don't know
    its mode.

Tue Dec  3 12:01:12 1991  Jim Wilson  (wilson at sphagnum.cygnus.com)

    * mips.md: Use AND not IOR in define_function_unit definitions.
    Correct setting of MODE attribute in various insn patterns.

Tue Dec  3 08:31:18 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-spew.c (scan_tokens): Delete Dec 2 change.
    (yylex): Instead, copy TMP_TOKEN.YYLVAL.TTYPE if it was allocated on
    the wrong obstack.
    (probe_obstack): New function to support the above change.

    * cp-tree.h (CLASSTYPE_DEBUG_REQUESTED): New flag.
    (CLASSTYPE_ASM_WRITTEN): Deleted.
    cp-class.c (finish_struct): Now almost always assume that classes
    with methods are to ignored for debugging purposes.
    cp-search.c (dfs_debug_{mark,unmarkedp}): Rewritten to handle new
    algorithm for minimizing debug output.

    * cp-decl2.c (constructor_name): Handle case when THING is a
    UNION_TYPE.

Tue Dec  3 06:35:38 1991  Michael Tiemann  (tiemann at cygnus.com)

    * jump.c (duplicate_look_exit_test): If REG_MAP is non-zero, call
    replace_regs on the REG_NOTES of COPY.

    * cp-spew.c (scan_tokens): Don't read past '='.

    * cp-call.c (compute_conversion_costs): For now, treat
    CONTRAVARIANCE_HARSHNESS as EVIL_HARSNESS, since we cannot tell the
    difference between when we should accept it (pointers to the right
    sort of methods) and when we shouldn't (base* to derived*
    conversions).

Mon Dec  2 18:53:42 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * cse.c (cse_around_loop): Fix typo in comment.
    * dbxout.c (dbxout_type_fields): Likewise.

    * sched.c (sched_analyze_1): Pass the second and third args of a
    ZERO_EXTRACT or SIGN_EXTRACT in the SET_DEST to sched_analyze_2.

    * combine.c (make_compound_operation): Change (lshiftrt (ashift ...))
    to a ZERO_EXTRACT, not a SIGN_EXTRACT.

Mon Dec  2 15:09:13 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * jump.c (jump_optimize): New arg AFTER_REGSCAN.
    If not set, don't use duplicate_loop_exit_test.
    * toplev.c (compile_file): Pass new arg to jump_optimize.

    * next.h (SELECT_SECTION): Test TREE_CONSTANT as well as TREE_READONLY.

    * xm-i86v[34].h: Renamed from xm-i860v[34].h.
    * configure: Corresponding changes.

    * m68k.c (output_function_epilogue): Put %R on all regs in asm_fprintf.

    * t-decstatn (ld): Just copy collect2.
    (collect): Target deleted.
    (EXTRA_PASSES): Deleted collect.
    (mips-tfile, mips-tdump): Depend on LIBDEPS.
    * t-mips (mips-tfile, mips-tdump): Depend on LIBDEPS.
    * collect2.c (main): Run /bin/ld.
    Use fatal_perror where appropriate.

    * objc-actions.c (build_message_expr): Fix typo.

    * configure: Add missing fi to finish last change.

    * cse.c (simplify_binary_operation): Restore missing break in case DIV.

    * sdbout.c (sdbout_init): Explicitly do nothing.
    (sdbout_typedefs): Function deleted.

Mon Dec  2 12:504:35 1991  Eric Youngdale (youngdale at v6550c.nrl.navy.mil)

    * config-gcc.com: Finish changeover from tm-*.h to *.h.

Sun Dec  1 05:18:32 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-search.c (lookup_{field,fnfields}): If PROTECT is 0, don't
    memoize the entry we find.

    * cp-decl.c (grokvardecl): Call `build_lang_field_decl' instead of
    `build_decl' if we retroactively allocate a VAR_DECL.

Sun Dec  1 00:10:18 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * configure: Convert option syntax from + to --.
    Support --target.

    * i386v4.h (ASM_OUTPUT_LOCAL, ASM_OUTPUT_GLOBAL): Deleted.
    (ASM_FILE_START): Deleted.
    (STARTFILE_SPEC, LIB_SPEC, STANDARD_STARTFILE_PREFIX): Deleted.
    (STDC_VALUE): Deleted.

    * real.h (REAL_VALUE_TRUNCATE): Check for same size as SFmode.

    * config/*.h: Renamed from tm-*.h.  #includes and comments changed.
    * configure: Changed accordingly.
    * t-*: tm-*.h file names changed.

    * gnulib2.c (__enable_execute_stack): Renamed function.
    * convex.h (INITIALIZE_TRAMPOLINE): Use new name.

Sun Dec  1 08:57:45 1991  Michael Meissner  (meissner at osf.org)

    * cccp.c (main): Add cast in front of alloca for non GCC compilers.

Sat Nov 30 22:33:24 1991  Chris Smith  ([e-mail])

    * config.subr: Recognize -c3*.
    New alternatives for convex-c3*.
    * configure: Alternatives for convex rewritten.

    * gnulib2.c (__execute_enable_stack): New function for Convex only.

    * gcc.c (do_spec_1): Use \ as quoting char.

    * convex.h (TARGET_SWITCHES): Add new machine types c32, c34, c38.
    Add flag TARGET_INDIRECTS, true for c1 and c2, false for c3.
    * convex.h (GO_IF_LEGITIMATE_ADDRESS): Avoid indirect
    addressing if ! TARGET_INDIRECTS.

    * convex.h: (BITS_PER_WORD, UNITS_PER_WORD, WORDS_BIG_ENDIAN):
    It now works to describe machine correctly.

    * convex.h (SIZE_TYPE, PTRDIFF_TYPE): Make them ints rather
    than longs to match usage in /usr/include.

    * convex.h (enum reg_class): Add classes SP_REGS, the stack
    pointer, and INDEX_REGS, the remaining A_REGS.
    (REG_CLASS_NAMES, REG_CLASS_CONTENTS, REGNO_REG_CLASS): Adjust
    for new classes.
    (INDEX_REG_CLASS, BASE_REG_CLASS): Use INDEX_REGS so gcc will
    not index off the stack pointer (register 0).

    * convex.h (TRAMPOLINE_TEMPLATE, TRAMPOLINE_SIZE,
    INITIALIZE_TRAMPOLINE): Define.

    * convex.h (INITIAL_FRAME_POINTER_OFFSET): Define.

    * convex.h (RTX_COSTS): Specify costs to prevent multiply
    from being synthesized from shifts (which aren't faster).

    * convex.h (NOTICE_UPDATE_CC): No need to do CC_STATUS_INIT,
    cc is never looked at.

    * convex.h (VTABLE_USES_MASK, VINDEX_MASK, SET_DECL_VINDEX):
    define so g++ works.

    * convex.h: If COLLECT is defined, define output macros for
    collect to call.

    * convex*.h: If !traditional, define _LONGLONG and 64-bit
    typedefs to prevent types.h from murdering ansi compilations.

    * convex.md (movsi): split into define_expand and two
    anonymous define_insns, one that uses indirection and
    one that doesn't.  TARGET_INDIRECTS selects which.

    * convex.c (output_call):  New routine.  Scan forward from call
    to decide if AP is live, omit AP reload if not.
    * convex.md (call, call_value): use output_call.

    * convex.md (bit manipulation peepholes): remove, now done in
    combine.

    * convex.md (indirect_jump): Define.

    * convex.c (const_double_{high,low}_int): Just return the
    appropriate word, remove slow float computations.

    * math-convex: New file to use builtin instructions.

    * x-convex: Use cc -pcc to bootstrap gcc.

Sat Nov 30 10:21:26 1991  Ron Guilmette (rfg at ncd.com)

    * tm-i386v4.h (DBX_REGISTER_NUMBER): Different renumbering.

    * tm-svr4.h (CTORS_SECTION_ASM_OP, DTORS_SECTION_ASM_OP): Changed
    so that the progbits parameter actually appears in the definitions.

    * tm-svr4.h (CTORS_SECTION_FUNCTION, DTORS_SECTION_FUNCTION):  Adapted
    for change in CTORS_SECTION_ASM_OP, DTORS_SECTION_ASM_OP.

Sat Nov 30 07:05:06 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-spew.c (follows_{identifier,typename}): New arrays.
    * cp-spew.c (init_spew): Initialize new arrays.
    * cp-decl.c (lookup_name): takes new parameter PREFER_TYPE.
    All callers changed.
    * cp-spew.c (yylex): Set LOOKING_FOR_TYPENAME every time we see an
    AGGR or ENUM.

    * cp-lex.c (real_yylex): When composing EXTERN_LANG_STRING, call
    `real_yylex', not `yylex'.  Changed other places that depended on
    calling `real_yylex' for their input.

    * cp-spew.c (scan_tokens): Never read past '{' or ':'.  Fill the
    token buffer with EMPTY tokens in that case.
    (yylex): Handle EMPTY tokens.

    * cp-parse.y (structsp): Avoid using `yyungetc' to push a ';' back
    on the input stream.
    (START_DECLARATOR): New token.
    (absdcl): Handle START_DECLARATOR.
    * cp-spew.c (consume_token): Renamed from `discard_token'.
    (struct token): Changed structure to make it smaller.
    (spew_init): Renamed from init_spew.  Now called from init_lex.
    (scan_tokens): Renamed from slurp_next_token.
    Many functions reformatted to match GCC indentation style.

    * cp-lex.c (arbitrate_lookup): Don't guess in favor of type if
    yychar is ')'.

    * cp-decl.c (lookup_name): Fixed so that all binding levels use
    `looking_for_typename' consistently.
    * cp-type2.c (build_functional_cast): Handle new case that we are
    called in a context where a method is appropriate (but we parsed it
    as a ctor call).

    * cp-call.c (CONST_HARSHNESS): Change bit that we test.
    (convert_harshness,compute_conversion_costs): Call CONST_HARSHNESS
    consisently when needed.

    * cp-init.c (decl_constant_value): Keep enabled even when
    CURRENT_FUNCTION_DECL is null.

Sat Nov 30 01:23:38 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * sdbout.c (sdbout_init): Just call sdbout_one_type on each type.

    * tm-att386.h (ASM_OUTPUT_ASCII): Output a space after ASM_BYTE_OP.
    * tm-sun386.h: Likewise.
    * tm-i386.h (ASM_OUTPUT_BYTE, ASM_OUTPUT_CHAR): Likewise.
    (ASM_OUTPUT_SHORT, ASM_OUTPUT_LONG, ASM_OUTPUT_DOUBLE): Likewise.
    (ASM_OUTPUT_FLOAT, ASM_OUTPUT_ADDR_VEC_ELT): Likewise.
    * tm-att386.h (ASM_BYTE_OP, ASM_SHORT, ASM_LONG, ASM_DOUBLE):
    Don't end with space.
    * tm-sun386.h, tm-bsd386.h: Likewise.

    * c-lex.h: Renamed from c-parse.h.  All #includes changed.
    * c-parse.c, c-parse.h: Renamed from c-parse.tab.*.
    * Makefile.in: Changed accordingly.
    (C_OJBS, realclean, TAGS): These changed too.

    * tm-svr4.h (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS):
    Undef before defining.

    * tm-i386v4.h: Include tm-svr4.h.
    (CPP_PREDEFINES): Define SVR4, and several assertions.
    (LIB_SPEC): Delete -Qy.  LINK_SPEC handles this.
    (DBX_REGISTER_NUMBER): New macro.

Fri Nov 29 22:16:06 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * rs6000.md: Cannot use "muls" and "muli" to do widening multiply
    from HImode to SImode; delete the 12 patterns that try to do this.

Fri Nov 29 21:32:52 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-cvt.c (build_type_conversion): Don't assume that if
    TYPE_HAS_{INT,REAL}_CONVERSION implies that CLASSTYPE_CONVERSION for
    the given type combination is non-NULL.

Fri Nov 29 16:08:22 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * crtstuff.c: New file.  Needs papers from rfg.
    * Makefile.in (crtbegin.o, crtend.o): New targets.

    * objc-actions.c (build_message_expr): Lots of cleanups.
    (build_objc_method_call): New subroutine.
    Handles new option NEXT_OBJC_RUNTIME.

    * expr.c (do_jump): Any LABEL_REF is nonzero.
    (expand_expr): Construct LABEL_REFs with Pmode.

Fri Nov 29 14:43:32 1991  Michael Meissner  (meissner at osf.org)

    * mips-tfile.c (parse_def): Change an error into a warning.

    * mips.md (fix_trunc??si_opt, mov??_internal): Change '*' constraint
    to '!' to keep reload from allocating FP registers from holding
    excess integer values.
    (ashift right define_splits): Fix typo, so that the long long
    arithmetic right shifts are recognized.
    (all define_splits): dummy out constraints, since they are not used.

    * mips.c (override_options): Allow int's in FP registers again, now
    that ! constraints are used.

Fri Nov 29 13:20:13 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * dwarfout.c (output_compile_unit_die):  Don't include the name
    of the compiler which compiled the compiler in the AT_producer
    string.  It goofs up comparisons of stage2 & stage3 object files.

    * c-parse.y, objc-parse.y: Don't declare position_after_white_space
    as static; it is now in c-lex.c.

Fri Nov 29 05:15:26 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-decl.c (xref_tag): Check that TREE_CODE (ref) is aggr type
    before storing into CLASSTYPE_DECLARED_CLASS (ref).

    * cp-decl2.c (build_push_scope): Don't let non-aggr types appear in
    `cname::fname' expressions.

    * cp-class.c (resolves_to_fixed_type_p): VAR_DECL and FIELD_DECL
    nodes of ARRAY_TYPE may resolved to fixed type.  Also handle other
    cases of WITH_CLEANUP_EXPR.

    * cp-spew.c (frob_identifier): Handle case of a type conversion
    operator that converts to a nested type.

    * cp-expr.c (cplus_expand_expr): In NEW_EXPR case, if ARGS is
    permanent, build a new arglist instead of modifying it in place.

    * cp-typeck.c (convert_arguments): Add ??? to comment about virtual
    function conversions.  ??? I don't understand what that code is
    supposed to do anymore.
    (comp_target_parms): If STRICT <= 0, accept types whose
    TYPE_MAIN_VARIANTs are equal.

    * cp-call.c (convert_harshness): Revamped to handle contravariance
    better.
    * cp-class.h (struct candidate): Declaration moved from cp-tree.h.

    * cp-class.c (duplicate_tag_error): New function.
    * cp-parse.y (LC): Call it if we're redefining a tag.
    * cp-decl.c (duplicate_decls): Only copy DECL_ARGUMENTS from OLDDECL
    if non-NULL.  Otherwise we get nonsense when we try to parse
    inline function bodies of classes that have already been redefined.
    * cp-lex.c (reinit_parse_for_method): If we get some text for a
    class that's been redefined, flush the text.
    * cp-tree.h (TYPE_REDEFINED): New field in `struct lang_type'.

    * cp-cvt.c (convert_to_integer): Only warn about anachronistic
    conversion from int to enum if PEDANTIC is nonzero.

    * cp-typeck.c (convert_for_initialization): No longer give warning
    messages about bitwise copy: this is currently how the default X(X&)
    constructor is implemented.
    * cp-init.c (expand_aggr_init_1): Ditto.

    * cp-method.c (dump_init): Handle WITH_CLEANUP_EXPR and TARGET_EXPR.
    * tree.c (simple_cst_equal): Handle WITH_CLEANUP_EXPR.  Correct
    handling of TARGET_EXPR case.

    * cp-decl.c (grok_reference_init): If DECL is permanent, make it's
    DECL_REFERENCE_SLOT permanent as well.

    * cp-cvt.c (build_type_conversion): If PEDANTIC, give message about
    conversions which cast away const.

    * cp-decl.c (store_return_init): If PEDANTIC, give error about named
    return values.

    * cp-init.c (decl_constant_value): Don't return DECL_INITIAL if
    CURRENT_FUNCTION_DECL is null or if the initializer is a
    CONSTRUCTOR.

Thu Nov 28 05:29:52 1991  Michael Tiemann  (tiemann at cygnus.com)

    * integrate.c (expand_inline_function): When passing objects by
    invisible reference, correctly compute the amount of space to be
    allocated in the pseudo-frame we create for the inline function.

    * cp-typeck.c (mark_addressable): Add call to
    `mark_inline_for_output' that got lost in Nov 25 change.

    * cp-decl.c (push_overloaded_decl): If the value of a name is an
    ADDR_EXPR, look inside to get the _DECL node.

    * cp-decl.c (grokdeclarator): Don't convert type of operators new
    and delete to METHOD_TYPE; they remain FUNCTION_TYPEs.

    * function.c (expand_function_start): Set TREE_REGDECL bit on
    RESULT_DECL if result starts life in a register.

    * c-common.c (truthvalue_conversion): Don't treat a CONVERT_EXPR as
    a NOP when it or the expression inside it is of REFERENCE_TYPE.

    * cp-class.c (finish_struct): Test DESTRUCTOR_NAME_P on
    DECL_ASSMBLER_NAME, not DECL_NAME.

Wed Nov 27 13:49:10 1991  Jim Wilson  (wilson at sphagnum.cygnus.com)

    * cse.c (simplify_relational_operation): Correct handling of
    COMPARE as first argument.  Always strip it off.  Don't invert
    return value for EQ when !HAVE_cc0.

Thu Nov 28 20:08:15 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * gmon.c: New file.

Thu Nov 28 15:02:24 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * combine.c (subst, case SET): Never make a paradoxical SUBREG of
    a REG unless the SUBREG and REG occupy the same number of words.

    * emit-rtl.c: Include flags.h.
    (operand_subword): Always look inside floating if -fpretend-float.
    * final.c (split_double): Likewise.
    * Makefile.in (emit-rtl.o): Includes flags.h.

    * c-lex.c (yylex): Add goto to `L' case.

Thu Nov 28 08:37:02 1991  Michael Tiemann  (tiemann at mole.gnu.ai.mit.edu)

    * tm-mips.h (ASM_OUTPUT_INT): Use `do {...} while (0)' so it can be
    used in if/else constructs.

Thu Nov 28 00:23:26 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * tree.h (BUILT_IN_FRAME_ADDRESS, BUILT_IN_RETURN_ADDRESS):
    New function codes.
    * c-decl.c (init_decl_processing): Declare the functions.
    * expr.c (expand_builtin): Implement them.

    * gcc.c: Pass to ld all the dirs in LIBRARY_PATH:
    (library_prefix): New list of prefixes.
    (process_command): Put dirs from LIBRARY_PATH on that list.
    (do_spec_1): %D outputs those dirs.
    (link_command_spec): Use %D after passing -L options.

    * gcc.c (process_command): Don't require machine suffix
    for dirs from COMPILER_PATH or LIBRARY_PATH.

    * cccp.c (main): C_INCLUDE_PATH, etc., add dirs rather than replacing.

    * Use the TYPE_DECLs to drive dbx and sdb output of type tags.
    * toplev.c (rest_of_type_compilation): New function.
    (compile_file): Pass list of initial decls to dbxout_init, sdbout_init.
    (various): Don't call get_*_types.
    * dbxout.c (dbxout_init): Get initial types from that list.
    * sdbout.c (sdbout_init): Likewise.
    * sdbout.c, dbxout.c: Don't call get_*_types.
    (*out_typedefs): New subroutines.
    * c-decl.c (finish_struct, finish_enum): Call rest_of_type_compilation.
    (pushtags): Record TYPE_STUB_DECL.
    * tree.h (TYPE_STUB_DECL): New macro.
    * stor-layout.c (chain_type, get_permanent_types, get_temporary_types):
    Deleted.
    (save_storage_status, restore_storage_status): Don't frob chains.
    (layout_type): Don't call chain_type.

    * dbxout.c (dbxout_type_fields): Output `/'-spec after type tag
    only if really needed.

Wed Nov 27 18:52:55 1991  Michael Tiemann  (tiemann at cygnus.com)

    * expr.c (expand_expr): Typo in expand_end_bindings, in BIND_EXPR case.

Wed Nov 27 23:10:48 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * cccp.c (main): Use savestring, not strdup.

Wed Nov 27 17:10:17 1991  Michael Meissner  (meissner at osf.org)

    * mips.c (mips_load_reg3, mips_load_reg4): New global variables to
    enable scheduling the second nop for the mfhi and mflo instructions.
    (mips_hard_regno_mode_ok): New global array to give the results
    of HARD_REGNO_MODE_OK for each register and mode.
    (mips_fill_delay_slot): Instead of taking the number of nops as a
    parameter, take an enumeration, giving what kind of delay this is.
    If the next instruction is a label, put nops before label, not
    after.  Add support for mflo/mfhi, which need 2 nops if the next
    instruction would modify the hi/lo registers.
    (mips_move_1word, mips_move_2words): mips_fill_delay_slot calling
    sequence changes.  Pass mflo/mfhi to schedule nops.
    (mips_move_2words): Move DImode to/from hi and lo registers is now
    supported.
    (function_arg): Correctly align long long parameters, just like
    doubles.  Also correct typo in debug code.  Bug report from
    [e-mail].
    (override_options): Initialize mips_hard_regno_mode_ok.  Restrict
    int's from going in the FP registers, to limit the register
    allocator from allocating them instead of using memory.  Also, make
    the special registers (HI, LO, FPSW) only accept full sized ints, or
    a double int for the HI:LO combination.
    (compute_frame_size): Don't set the initialized member until reload
    has completed, since otherwise the information may change.

    * mips.md (various): Add 64 bit integer operations for addition,
    subtraction, negation, and, inclusive or, exclusive or, one's
    complement, shifts, and nor.  Add 32x32->64 bit support for
    multiply, which the compiler then uses to construct 64 bit
    multiplies.
    (mulsi3): Break mul into it's two instructions, and schedule the
    two nops needed for the mflo instruction.  Don't allow an integer
    multiplier anymore.
    (ffssi2): Delete define_expand, and use a second clobber'ed register
    to preserve the original input, instead of (clobber (match_dup 1)).
    (movsi_ulw): Change mips_fill_delay_slot calling sequence.
    (movdi_internal): Allow DImode move from HI/LO to/from GP registers.
    (movdi define_split): Add a define_split to separate the two parts
    of DImode register pairs when using GP registers.
    (movdf define_split): Add a define_split to separate the two parts
    of DFmode register pairs when using GP registers.
    (mov??_internal): Change condition to call memory_operand, instead
    of just checking for MEM, which disallows (subreg (MEM)) during
    the intermediate parts of the compilation.  Reported by
    [e-mail].
    (negsi2): Turn back into a real insn instead of just a
    define_expand for subsi3.
    (one_cmplsi2): Turn back into a real insn instead of just a
    define_expand for norsi3.
    (andsi3, iorsi3, xorsi3): Be more liberal than the real machine, and
    allow 32 bit constants to improve the code generated for bitfields,
    at the expense of potentially not moving the constant out of loops.
    (various): Add = constraint to all clobbers.
    (fix_trunc*): Go back to old method of using two clobbers, since
    unoptimized compiles call abort otherwise, when returning the result
    of truncating a float as a function result.

    * tm-mips.h (delay_type): New enum to express different types of
    delay slots.
    (mips_load_reg3, mips_load_reg4): Declarations for more registers
    to check for needing nops.  Used by multiply/divide to schedule
    the two nops needed after mfhi/mflo if the next instruction would
    clobber the register.
    (CONDITIONAL_REGISTER_USAGE): If -msoft-float, disable all FP
    registers.
    (MASK_DEBUG_G): Add comment saying -mdebugg turns of new DImode
    patterns, in case the code is wrong.
    (HARD_REGNO_NREGS): All FP registers use register pairs, so that
    SF in a GP register takes only one register, and SI in a FP
    register takes 2.
    (HARD_REGNO_MODE_OK): Change macro to reference the array
    mips_hard_regno_mode_ok, which is now built in override_options.
    (CONST_OK_FOR_LETTER_P): 'N' is now for negative numbers, 'O' is
    an exact power of 2, and 'P' is now for positive numbers.
    (PREFERRED_RELOAD_CLASS): If -msoft-float, never prefer a FP
    register.
    (PREFERRED_RELOAD_CLASS_FM): Delete, since nobody uses it.
    (FINAL_PRESCAN_INSN): Check for mips_load_reg3 and mips_load_reg4
    being mentioned.  Also add a missing tab when more than one delay
    slot.
    (CONST_COSTS): Make all constant ints cost 0 to lower register
    pressure according to Richard Kenner.
    (RTX_COSTS): Adjust costs for DI, SF, and DF modes, and add ABS/FFS
    costs as well.
    (REGISTER_MOVE_COSTS): Bump costs for moving between register
    classes, so that reload doesn't try to store int type values in the
    floating point registers.

Wed Nov 27 15:01:52 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * config-gcc.com: Renaming of out-vax.c.
    * make-cc1.com: Link dbxout with all languages.  Add cp-spew.

    * cccp.c (include_defaults_array): Fix typo.

    * gstddef.h: Handle _STDDEF_H_.

    * configure.bat, Makefile.dos: New files.

    * c-lex.c: New file.  All subroutines moved here.
    (yylex): Small diffs between C and OBJC merged.
    * c-parse.y, objc-parse.y: Deleted from here.
    * c-lang.c (lookup_interface): New stub.
    * Makefile.in (c-lex.o): New rule.
    (OBJC_OBJS, C_OBJS): Changed for new files.

Wed Nov 27 13:34:15 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * c-parse.y (yylex): Don't assume that long is 32 bits and long
    long is 64 bits when warning for out of range integer constants,
    and when creating a tree to represent integer constants.
    * cp-lex.c (real_yylex): Likewise.
    * objc-parse.y (yylex): Likewise.

    * combine.c (simplify_comparison, ASHIFT case): Prevent shift by
    HOST_BITS_PER_INT for inequality comparisons.

    * fold-const.c (operand_equal_p): Arguments are not equal if
    signedness differs.  Conversions don't match if signedness differs.

    * sparc.md (movsi, movhi, movqi, movdi): Prohibit matches that
    would require reloading by the use of conditions.

    * alloca.c (alloca): Add parens to make precedence clearer.

    * tm-news.h (PRINT_OPERAND): Add 68040 support so that the compiler
    will bootstrap.

Wed Nov 27 09:41:13 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * expr.c (expand_expr, case MIN_EXPR): Fix typo in operand number
    in safe_from_p call.

    * recog.c (indirect_operand): Correctly handle case where we have
    a (subreg (mem X) C) after reload.

Tue Nov 26 16:24:03 1991  Ron Guilmette  (rfg at ncd.com)

    * dwarfout.c (output_enumeration_type_die): Handle a GNU C
    language extension: incomplete enum types.

    * dwarfout.c (output_type): Fixed bug which causes DIEs for
    file-scope tagged types to be generated in a local-scope
    under some conditions.

    * dwarfout.c (dwarfout_init, dwarfout_finish): Moved code which
    generates most of the .debug_aranges entries from dwarfout_init
    into dwarfout_finish to avoid m68k assembler bug.

    * Makefile.in (EXTRA_PARTS): New parameter.
    (install-common): Compile the things in EXTRA_PARTS.
    (GCC_PASSES, GCC_PARTS): New variables.
    (STAGESTUFF, native, enquire, enquire.o): Use them.
    (protoize, protoize.o, unprotoize, unprotoize.o, SYSCALLS.c.X):
    (gnulib2.ready, collect2, collect2.o, getopt.o, getopt1.o): Likewise.

    * tm-svr4.h (CPP_PREDEFINES): Don't define this here.  Undef it
    so that other files which include this one will be forced to
    define it appropriately for the specific target and OS.
    (CPP_SPEC): Deleted.
    (LIB_SPEC): Add crtend.o as last thing linked in on each link-step.
    (STARTFILE_SPEC): Add crtbegin.o as the first thing linked in.
    (NO_DOLLAR_IN_LABEL):  Added define.  Most svr4's don't support $.

    * tm-svr4.h: Added support for the .ctors and .dtors sections
    (as for the m88k).
    (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): New macros.
    * tm-svr4.h (HERE_ASM_OP, ASM_DECLARE_FUNCTION_SIZE):  Deleted
    define of HERE_ASM_OP and made ASM_DECLARE_FUNCTION_SIZE not
    try to use a dot when computing a function's size in a .size
    directive (because Tom Wood says that 88open doesn't approve
    of dot as an asm operand).

    * x-genix, x-i386sco, x-xenix (INSTALL): Define as cp.

Tue Nov 26 16:24:03 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * gcc.c (default_compilers): Pass -A* to cpp.

    * Make names unique if unpacked on MSDOG.
    * config/*.c: `out-' removed from all file names out-*.c.
    * x-hp*: Renamed from x-hp9k*.
    * tm-conv1.h, tm-conv2.h: Renamed from tm-convex*.h.
    * tm-hp*.h: `9k' removed from these names.
    * tm-isi*.h: `68' removed from these names.
    * tm-i860b.h, tm-i860bg.h: `sd' removed.
    * tm-i860g3.h: Renamed from tm-i860v3g.h.
    * tm-i386sun.h: Renamed from tm-sun386i.h.
    * tm-sun3o3.h, tm-sun4o3.h: Were tm-sun*os3.h.
    * tm-sun3n3.h: Was tm-sun3os3nf.h.
    * tm-sun3n.h: Was tm-sun3-nfp.h.
    * tm-sun2o4.h: Was tm-sun2os4.h.
    * xm-hp320.h: Was xm-hp9k320.h.
    * xm-i386sun.h: Was xm-sun386i.h.
    * configure: Adjust for those renamings.

    * configure (m68000-hp-hpux*): Use xm-hp320.h.

    * stmt.c (expand_value_return): New subroutine.
    (expand_return): Use that.

    * make-gcc.com: New name for make.com.

    * stor-layout.c (layout_record): Return list of static members.
    (layout_type): Lay them out here.

    * expmed.c (init_expmed): Use 3 as shift count for shift_cost.

    * x-sco: File deleted.

    * print-tree.c (print_node): Always be brief for vector elts.

Tue Nov 26 07:42:41 1991  Michael Tiemann  (tiemann at rtl.cygnus.com)

    * cp-decl.c (grokdeclarator): Fix typo involving ~RID_STATIC.

Mon Nov 25 21:51:09 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * optabs.c (emit_cmp_insn): If both operands are VOIDmode,
    put first operand into register, not second.

    * alliant.md, gmicro.md, i386.md, m68k.md, ns32k.md, pyr.md:
    Don't allow a constant as the first operand to tstxx insns.
    * tahoe.md, vax.md: Likewise.
    * convex.md: Remove erroneous comment on tstsi.

Mon Nov 25 20:51:00 1991  DJ Delorie  ([e-mail])

    * cccp.c (main): Look in env vars to override header dir list.
    * gcc.c (process_command): Likewise.

    * gcc.c (execute): Alternate way to get status on MSDOS.
    Error for -pipe on MSDOS.
    (pexecute): Alternate definition for MSDOS.
    (find_a_file): Handle new hook EXECUTABLE_SUFFIX.
    (EXECUTABLE_SUFFIX): Add default definition, and alternate for MSDOS.
    (P_tmpdir): Add default definition for MSDOS.

Mon Nov 25 17:18:52 1991  Michael Collison  (collison at osf.org)

    * x-encrose: New file for mmax running OSF/1.
    * t-encrose: ditto.

    * ns32k.md (movsi): Use new constraint letters 'x' and 'y'
    representing the frame and stack pointer.
    (movhi,movqi): Add constraints and template code to allow moves
    between the floating point and general purpose registers.

    * tm-ns32k.h (REGISTER_MOVE_COST): Use this macro to discourage
    moves between the floating point registers and the frame and stack
    pointer.  Also discourage moves between the fp and general registers.
    (reg_class, REG_CLASS_NAMES, REG_CLASS_CONTENTS,
    REG_CLASS_FROM_LETTER): Add two new register classes representing
    the frame pointer and stack pointer respectively.
    (GO_IF_NONINDEXED_ADDRESS): Add check to see if register is also a
    base register. This causes reload to reject pseudo registers when
    REG_OK_STRICT is defined.

    * tm-i386rose.h: New file for 386 running on OSF/1.
    * x-i386rose: ditto
    * t-i386rose: ditto

    * config.subr: Added case for 'osf-'.
    * configure: Added case for i386-osfrose

    * tm-encrose.h (CC1_SPEC): Simplified so by default it passes nothing.
    (ASM_SPEC): Changed so that under OSF/1 with NO_J_SWITCH defined
    nothing is passed to the assembler.
    (TARGET_DEFAULT): Changed so that, by default, no code is generated
    using the static base (sb) register.
    (OVERRIDE_OPTIONS): Removed in lieu of the new debug macros
    PREFERRED_DEBUGGING_TYPE and DEFAULT_GDB_EXTENSION.
    (DEFAULT_GDB_EXTENSIONS): Define it
    (PREFERRED_DEBUGGING_TYPE): Use it.

Mon Nov 25 17:18:52 1991  Jyrki Kuoppala  (jkp at batman.hut.fi)

    * ns32k.md (ashlhi3): use addw also on 32532 if shiftcount is 1.
    (ashlqi3): likewise.
    (addsi3): don't use addr instead of addd on the 32532.

    * out-ns32k.c (calc_address_cost): don't assume unknown RTX codes
    have XEXP's which are rtx's.

    * ns32k.md (movsi): don't use addr for the 32532 immed displacements.
    (shift patterns): fixed a typo with %$%n.

    * out-ns32.c (calc_address_cost) new function.
    tm-ns32k.h (ADDRESS_COST): call calc_address_cost.

    * out-ns32k.c (print_operand_address): use error & debug_rtx if error.

    * tm-ns32k.h (CONST_OK_FOR_LETTER_P): constraint 'I' shouldn't
    match anything on the 32532 to make negative arithmetic left
    shifts behave consistently.

    * ns32k.md (subsf+1): don't use ajdspb on the 32532.

    * tm-ns32k.h (CONST_OK_FOR_LETTER_P): positive values not OK for
    constraint 'I' if on 32532.

    * ns32k.md (ashl??): if TARGET_32532, use lsh{d,w,b}.

    * ns32k.md (adjusting stack pointer): don't use ajdp{b,w} if not 32532.

    * ns32k.md (isv,insv-1,insv-2,extzv): use constraint K instead of
    n for offset.

    * ns32k.md (insv-1): use only register_operand with constraint
    "r" for operand 2, insd can't take constant offsets >= 8.
    (pattern insv-2): added another insv-like pattern, for
    offsettable operand.
    (insv): constraint should be "+g".
    (pattern before insv): installed an insv-like pattern
    with operand 0 having register_operand and SImode.

    * out-ns32k.c (print_operand): define as a void function.

    * ns32k.md (call_value): use operands[1], not operands[0] to check
    for CONSTANT_ADDRESS_P.

    * out-ns32k.c (print_operand): eliminate
    PRINT_OPERAND_EXTRACT_FLOAT, don't depend on HOST_WORDS_BIG_ENDIAN.

    * tm-ns32.h (INDIRECTABLE_1_ADDRESS_P): use CONSTANT_ADDRESS_P,
    not CONSTANT_P.

    * tm-ns32k.h (GO_IF_LEGITIMATE_ADDRESS): checking for CONST_INT
    is not right because displacements are not 32-bit.  Use
    CONSTANT_ADDRESS_NO_LABEL_P instead.

    * tm-ns32k.h (output_move_double, output_shift_insn): New declarations.

    * out-ns32k.c (print_operand_address): Use fatal for errors.

    * ns32k.md (insv, extzv): Replaced with the pattern near insv in 1.40.

    * out-ns32k.c (print_operand): function moved from tm-ns32k.h.
    Modified to use PUT_IMMEDIATE_PREFIX, PUT_EXTERNAL_PREFIX; added
    macro PRINT_OPERAND_EXTRACT_FLOAT.

    * out-ns32k.c (print_operand_address): replaced the function with
    a more clean version, written for gas syntax.

    * ns32k.md (call): #if 0 code which was used when GAS_SYNTAX was not
    defined.
    (call_value): likewise.

    * ns32k.md (pattern after ashrsi3): added % before $ so the
    pattern works also for gas syntax.
    (pattern after ashrhi3): likewise.
    (pattern after ashrqi3): likewise.
    (pattern after lshrsi3): likewise.
    (pattern after lshrhi3): likewise.
    (pattern after lshrqi3): likewise.
    (pattern after rotrsi3): likewise.
    (pattern after rotrhi3): likewise.
    (pattern after rotrqi3): likewise.

    * ns32k.md (movsf): put #ifndef GAS_SYNTAX part inside #if 0 since
    for now we only use GAS syntax.

    * tm-ns32k.h (INDIRECTABLE_2_ADDRESS_P): add TARGET_SB as a
    condition in addition to CONSTANT_ADDRESS_P.

    * tm-ns32k.h (MEM_REG): use CONSTANT_ADDRESS_P instead of GET_CODE
    == SYMBOL_REG, add TARGET_SB to the second-part condition.

    * ns32k.md (rotrsi3): fixed a typo NEGATE->NEG

    * tm-ns32k.h: added a comment about CONSTANT_ADDRESS_P; it's not
    strictly according to the spec.

    * tm-ns32k.h: added defaults for ABSOLUTE_PREFIX,IMMEDIATE_PREFIX
    etc, using gas syntax.

    * out-ns32k.c: removed macro FP_REG_P.

    * tm-ns32k.h: (ASM_OUTPUT_ALIGN_CODE): changed alignment from 4 to
    2 since GAS syntax is the default assembler syntax now.
    (PRINT_OPERAND, PRINT_OPERAND_ADDRESS): defined to call
    print_operand and print_operand_address in out-ns32k.c,
    respectively.

    * tm-ns32k.h: New macros TARGET_SB, TARGET_PIC.
    Dummy code for trampolines, calls fatal().
    Macro FP_REG_P moved here from out-ns32k.c.
    Some reorganizations of blocks.
    68000 -> ns32k.

    * tm-ns32k.h (TARGET_VERSION) says GAS syntax.
    (TARGET_*) added some empty lines for clarity.

Mon Nov 25 14:29:39 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * Makefile.in (aux-output.o): Depend on insn-codes.h.

    * make-cc1.com: Handle print-rtl.c.

    * toplev.c (warn_aggregate_return): New variable.
    (W_options): Define option to set it.
    * flags.h: Declare it.
    * calls.c (expand_call): Print warning if value is aggregate.
    * function.c (init_function_start): Likewise.

Mon Nov 25 13:29:50 1991  Per Bothner  (bothner at cygnus.com)

    * cp-except.c (init_exception_processing): Fix return type of
    longjmp (from int to void).

Mon Nov 25 13:11:51 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * rtlanal.c (refers_to_regno_p): Check for `x == 0' on repeat.

    * x-mips, xm-vms.h: Change cplus-* to cp-* in comments.
    * x-tower (X_CFLAGS): Add missing `-'.

    * unroll.c (unroll_loop): When simplifying loops executed only once,
    use last_loop_insn not copy_end.

Mon Nov 25 07:45:46 1991  Michael Tiemann  (tiemann at rtl.cygnus.com)

    * cp-except.c (init_exception_processing): Mark `ExceptionHandler'
    constructor and destructor as being TREE_EXTERNAL, and mark the
    `ExceptionHandler' type as being interface-only.

    * cp-decl.c (maybe_globalize_type): Don't test TYPE_BEING_DEFINED
    for ENUMERAL_TYPE.

    * cp-class.c (modify_vtable_entry): Disable code which attempts to
    encode in a vtable an indirection to another vtable entry.

    * cp-call.c (build_method_call): Convert FUNCTION to
    DECL_MAIN_VARIANT (FUNCTION) once we are going to use it for real.
    * cp-init.c (build_delete): Use DECL_MAIN_VARIANT (DTOR).  *
    * cp-typeck.c (mark_addressable): Use DECL_MAIN_VARIANT (X).

Mon Nov 25 00:41:14 1991  Per Bothner  (bothner at cygnus.com)

    * dbxout.c (dbxout_type): Tiemann's DECL_IGNORED_P optimization (Nov
    20) was a little too drastic: If it succeded, no type info was
    emitted at all, which made for syntactically invalid stabs.
    Instead, just set 'full=0',
    * dbxout.c (dbxout_symbol): Re-write code for TYPE_DECL to be a
    little cleaner.  It *seems* to work ...

Sun Nov 24 19:32:07 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * sched.c (update_links): Use PUT_REG_NOTE_KIND to change REG_NOTE.

Sun Nov 24 14:53:37 1991  Ron Guilmette  (rfg at ncd.com)

    * cccp.c: Add `return 0;' statements to all do_* functions which
    needed them to prevent spurious warnings.  Also change plain
    `return;' statements to `return 0;' statements where appropriate.

Sun Nov 24 07:37:17 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * cse.c (cse_insn): When making equivalences of subparts of
    a SET, avoid putting a (hard) register in the hash table twice,
    each time with different modes.

    * genrecog.c (write_tree_1,change_state): Don't check for a position
    containing a '*' since we don't set it to that.
    (main): Don't define recog_addr_dummy; no longer used.
    * recog.c (recog_addr_dummy): No longer needed; wasn't actually used.
    (init_recog_no_volatile, init_recog): Don't set recog_addr_dummy.

    * expmed.c (store_split_bit_field, extract_bit_field): Abort if
    operand_subword of target returns 0.
    * expr.c (convert_move, move_block_from_reg, emit_move_insn): Likewise.

    * combine.c (subst, case SUBREG): Don't allow making a SUBREG of
    a hard reg in a mode not valid for that hard reg.
    * emit-rtl.c (gen_lowpart_common, operand_subword): Likewise.

    * expmed.c (extract_split_bit_field): Use operand_subword_force.
    * expr.c (emit_move_insn): If operand_subword fails for non-const,
    use operand_subword_force.

    * expmed.c (expand_mult): Pass OP0 through protect_from_queue so we can
    use it in a REG_EQUAL note and check it for being a MEM.

    * rtl.def (SMIN, SMAX, UMIN, UMAX): New RTL codes.
    * fold-const.c (const_binop, case MIN_EXPR, MAX_EXPR): Use MIN and MAX.
    (fold, case MIN_EXPR, MAX_EXPR): Check for operands equal; check for
    min (x, lowest-value-for-type) and max (x, highest-value-for-type).
    (fold, case COND_EXPR): Look for conditionals that are equivalent
    to ABS_EXPR, MIN_EXPR, or MAX_EXPR and convert them to the appropriate
    expression.
    * expr.h (smin_optab, smax_optab, umin_optab, umax_optab): New vars.
    * gcc.texinfo (smin, smax, umin, umax): Add documentation.
    * expr.c (expand_expr, case ABS_EXPR): Ignore ABS on unsigned types.
    If jumps are expensive, we can do ABS with shifts and xors.
    (expand_expr, case MIN_EXPR, MAX_EXPR): Try to do using new optabs.
    * optabs.c (smin_optab, smax_optab, umin_optab, umax_optab):
    Initialize new optabs.
    * cse.c (simplify_binary_operation): New cases SMIN, SMAX, UMIN, UMAX.
    * rs6000.md (sminsi3, smaxsi3, uminsi3, umaxsi3): New patterns.
    * m88k.md (abssi2): Delete pattern; now done in expr.c.

    * rs6000.md (scc): Correct typos in last change.

    * expmed.c (expand_mult): TARGET will only be written once, so
    function return register is OK.
    Write a REG_EQUAL note so multiplications can be cse'ed.

    * expmed.c (emit_store_flag): Skip trying most sequences of insns
    if branches are very cheap (BRANCH_COST == 0).
    * expr.c (expand_expr, case COND_EXPR): Check for BRANCH_COST <= 1,
    not equal to 1.
    Know that emit_store_flag won't do most sequence if branches are very
    cheap.

    * tm-vax.h (BRANCH_COST): Define to be equal to zero.

Sun Nov 24 07:07:31 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-decl.c (maybe_globalize_type): Don't globalize a type that's
    being defined.

Sun Nov 24 05:08:57 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * c-decl.c (finish_struct): Use main variant checking ANSI bitfields.

    * tm-tower-as.h (ASM_FILE_START): Use output_file_directive.

    * gcc.c (process_command): Treat `-' as file name, not option.

Sat Nov 23 20:28:58 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * cse.c (simplify_binary_operation): Remove duplicate code for SFmode
    and DFmode; use of REAL_VALUE_TRUNCATE means that all modes can be
    handled with the same code.
    Truncate result as well as inputs to computations.

    * cse.c (cse_basic_block): Allow recording of destinations in the
    final insn of a LIBCALL block.

    * flow.c (insn_dead_p): Add new argument CALL_OK.
    (propagate_block): Pass new arg.
    (libcall_dead_p): Indicate that we can accept a CALL when we use
    insn_dead_p to see if the destination of the CALL is dead.

    * genrecog.c (struct decision): Remove fields `dupcount'
    and `reg_class' and all references; they were being set but never
    used and are now obsolete.

    * emit-rtl.c (gen_lowpart_common, operand_subword): Don't make
    a new REG for the function return value until we after the RTL
    is copied for possible inlining; use a SUBREG instead.

    * combine.c (can_combine_p): Don't move insn past a volatile ref if
    it is an `asm', even if non-volatile.

    * gmicro.md: Fix punctuation problem causing syntax error.

    * tm-rs6000.h (CONST_OK_FOR_LETTER_P): Add `O' and `P'.
    * out-rs6000.c (reg_or_neg_short_operand): New function.

    * rs6000.md (attribute "type"): New type `delayed_compare'.
    Add define_function_unit for delayed comparisons.
    Mark comparison results of certain insns as being delayed for
    longer that normal comparison results; add a new missing types
    of `compare'.
    (seq, sle): Remove special-cases for (const_int 0) operands; use
    alternative with constraint of `O' instead.
    (sltu, sgeu): Support most constants in second operand.

    * cse.c (prev_insn_cc0_mode): New variable.
    (fold_rtx): When folding CC0, get the mode from prev_insn_cc0_mode.
    (cse_insn): Save mode of SET of CC0 in prev_insn_cc0_mode.

Sat Nov 23 17:01:47 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * expmed.c (init_expmed): Make REG a pseudo, not a hard reg.

    * tm-m68k.h (RTX_COSTS): New macro.

    * varasm.c (make_decl_rtl): Get rid of pedantic warning.

    * gcc.c (link_command_spec): Delete code for handling -collect.
    (default_compilers): Get rid of the %x for g++.
    This is because now collect is always supposed to be run.

    * tm-vms.h (ASM_OUTPUT_COMMON): Avoid void as type in :? operator.
    * tm-sun3.h (ASM_OUTPUT_FLOAT_OPERAND, ASM_OUTPUT_DOUBLE_OPERAND):
    Likewise.
    * tm-vaxv.h (ASM_OUTPUT_ASCII): Declare `s' as unsigned char *.
    * tm-crds.h (FUNCTION_EPILOGUE): Don't call FUNCTION_EXTRA_EPILOGUE.

    * configure (i386-dontknow-*, ns32k-*-*): Alternatives deleted.
    (m68k-tti2-*): Deleted.
    (m68k-tti-*): Renamed from m68k-tti1-*.

    * i860.md (floatsidf2): Escape the doublequotes.

    * Makefile.in (final.o): Add insn-codes.h as dep.
    (OBJS): Add dbxout.o.
    (C_OBJS, OBJC_OBJS): Deleted here.
    (CPLUS_OBJS): Deleted cp-dbxout.o.
    (cp-dbxout.o): Target deleted.

Sat Nov 23 06:33:24 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-spew.c (yylex): Don't see TYPENAME if LOOKING_FOR_TYPENAME
    is < 0.  Definitely see TYPENAME if LOOKING_FOR_TYPENAME > 0.

    * cp-decl.c (grokdeclarator): Any type construction that uses a
    struct/union/enum type that is not yet defines pushes that type into
    the global namespace.

    * cp-spew.c (discard_token): Renamed from `eat_token'.
    Also, make all local functions static.  Some day we'll use inlining.

Thu Nov 21 16:06:14 1991  Mark Eichin  (eichin at cygnus.com)

    * Makefile.in: added rule for cp-spew.o

    * cp-parse.y (TYPENAME_SCOPE): added an action, since it is no
    longer done in the lexer.
    (yyprint): Took out case for TYPENAME_SCOPE.

    * cp-lex.c (real_yylex): renamed from yylex. Also all of the code
    dealing with nested classes has been #if 0'd in favor of the code in
    cp-spew.c.

    * cp-spew.c (New File): This calls yylex (which is now real_yylex)
    and looks ahead as far as possible to bind up nested classes and
    pass them on to the parser.

Thu Nov 21 18:14:11 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * out-sparc.c (output_function_epilogue): Correct parameters in
    call to final_scan_insn, write_symbols parameter no longer exists.

    * integrate.c (save_for_inline_copying): Use GET_RTX_CLASS.

Thu Nov 21 17:44:46 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * gcc.texinfo (PCC_BITFIELD_TYPE_MATTERS): Clarify that macro
    must always be non-zero unless MEM extv/extzv/insv exist.

    * romp.md (movdi): Disable define_split when we are moving
    between overlapping registers prior to reload to work
    around hard-to-fix sched.c bug.

Thu Nov 21 17:14:54 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * jump.c (invert_exp): Correct typo in comment.

Thu Nov 21 15:34:27 1991  Michael Meissner  (meissner at osf.org)

    * gcc.texinfo (warning options): Make the documentation agree with
    the code, -Wstrict-prototypes and -Wmissing-prototypes are not
    turned on via -Wall; -Wnoparenthesis is now spelled
    -Wno-parenthesis.
    (option header): Mention that -W options take the no- prefix as well
    as -f options.

Thu Nov 21 08:12:51 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * out-m88k.c (check_float_value): Change use of REAL_VALUE_TRUNCATE.
    * tm-m88k.h (FLOAT_TO_INT_INTERNAL): Ditto.
    (AS_BUG_POUND_TYPE): Simplify.
    * tm-m88kdgux.h: Don't need AS_BUG_DOT_LABELS or AS_BUG_POUND_TYPE.

Thu Nov 21 06:47:11 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * rs6000.md (scc): Add missing '&' in some alternatives of constraints.

    * a29k.md (negdf2): Fix typo in constraints for SCRATCH in 29050 case.

    * real.h (REAL_VALUE_TRUNCATE): Default is to truncate to float if
    mode size is BITS_PER_WORD instead of when mode if SFmode.

Thu Nov 21 01:58:27 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * dbxout.c (dbxout_type): Test TYPE_BINFO before TYPE_BINFO_BASETYPES.

Thu Nov 21 01:45:53 1991  Ken Raeburn  ([e-mail])

    * cp-parse.y (unary_expr): Break out `new' expressions with
    parenthesized types into more basic forms, and handle trailing array
    dimensions with an appropriate warning message.

    * cp-class.c (pushclass): For UPType, overload the template name.
    (popclass): For UPType, undo the overload.

    * cp-decl.c (pop_decl_level): Don't look up DECL_NAME slot of a
    null pointer.
    (pushdecl_top_level): Reworked handling of shadow lists to be
    correct.
    (lookup_tag): Bypass redefinition error message for UPT as well as
    for TEMPLATE_DECL.
    (start_decl): Add template decls only to top level.  Print message
    for non-function, non-class templates.
    (finish_decl): Disable code that renames anonymous types; leave it
    disabled until we figure out why it was being done in the first
    place.
    (grokdeclarator): Eliminate hack to deal with destructor templates.
    Extend some code handling constructors to handle destructors as
    well.  Deleted some unnecessary code dealing with function
    templates.

    * cp-decl2.c (constructor_name): Treat class template decl like
    type decl.

    * cp-lex.c (store_pending_inline): If a function is not to be
    compiled, discard its text only if can_free flag is set.

    * cp-decl.c (start_function): For `pre-parsed' functions, only
    set extern-inline flag if inline flag is set.
    * cp-lex.c (do_pending_inlines): Don't set inline flag for method
    templates, regardless of default-inline flag setting.
    (process_next_inline): Ditto.

    * cp-method.c (dump_type): Do something semi-useful with UPT
    nodes, instead of crashing.
    (fndecl_as_string): For constructor and destructor, use name of
    function rather than looking up class constructor name; should be
    the same, and it's cheaper this way.
    (build_overload_name): Make template-related names unique, as well
    as unlikely to be accepted by the assembler.

    * cp-parse.y (yyprint): Handle PRE_PARSED_CLASS_DECL.
    (template_def): In case handling destructors, pass new decl to
    end_template_decl, rather than ungrokked call_expr node.  Rewrote
    last derivation.
    (scoped_typename): Don't try building from template type; it doesn't
    work.
    (try_for_typename): Treat typename using template parms like any
    other typename.

    * cp-pt.c: New comment at start lists some known problems.
    (end_template_decl): Do nothing for error_mark_node.  Check
    DECL_CLASS_CONTEXT and DECL_EXTERNAL when setting TREE_EXTERNAL
    field of template decl.  Don't need to pop extra class level for
    non-operators any more, but do need to assign class context field.
    (instantiate_member_templates): Now returns void.
    (tsubst, case FUNCTION_DECL): Process flag fields of method as for
    other functions.  Handle class context field.  Push decl at top
    level only if decl context is null.
    (tsubst, case TREE_LIST): Use via-public and via-virtual fields.
    (do_pending_expansions): Correct handling of methods.

    * cp-pt.c (overload_template_name): If not class-level, push
    extra binding level.  Disable check that overload hasn't already
    been done; for now, it's needed.
    (undo_template_name_overload): Pop it.

Thu Nov 21 00:15:33 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * dbxout.c (dbxout_type_methods): Don't dereference TYPE_NAME and
    ctor_name until after checking for non-null methods.

    * sched.c (create_reg_dead_note): New function.  Add a REG_DEAD note
    for REG to INSN, reusing a REG_DEAD note from the dead_notes line.
    (attach_deaths): Add quick exit for many rtx that can't contain a
    register.  Rewrite REG_DEAD note code to use the new scheme (see
    the Nov 1 ChangeLog entry).
    (new_insn_dead_notes): Don't add a REG_DEAD note to an insn that
    already has one.
    (update_links): Must convert REG_UNUSED notes to REG_DEAD when a
    register formerly just clobbered is now explicitly set and used in
    the new split insns.

Wed Nov 20 18:02:38 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * c-decl.c, cccp.c: Change all -Wno options to
    -Wno- options so as to be consistent with toplev.c, and so as
    to also be consistent with the -fno- options.
    * objc-actions.c: Add a -Wno-selector option to match the
    -Wselector option.

    * gcc.c (default_compilers): Pass all -W options to cpp, so that
    -Wno options will be passed along with the -W options that it
    understands.
    * cccp.c (main): Accept -Wno option counterparts for every
    existing option.

Wed Nov 20 00:03:41 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-tree.c (lang_output_debug_info): Deleted.
    * cp-class.c (finish_struct): Set DECL_IGNORED_P on the TYPE_DECL
    nodes for types that should not have their debugging info written
    out.
    * dbxout.c (dbxout_{symbol,type}): Check DECL_IGNORED_P for
    TYPE_DECLs of RECORD_TYPE nodes.

    * cp-decl.c (grok_op_properties): Fix bug in grokking NEW_EXPR
    and DELETE_EXPR operators.
    * cp-method.c (hack_operator): Deleted.
    * cp-init.c (init_init_processing): Use `ansi_opname' for
    {NEW,DELETE}_EXPR instead of calling hack_operator and build_opid.
    * cp-decl2.c (grokopexpr): Deleted.
    * cp-lex.c (build_opid): Deleted.
    * cp-class.c (build_instantiated_decl): Deleted.
    * All cp-* files: OP_IDENTIFIER is no longer used.

    * cp-parse.y (operator_name): For most cases, Use `ansi_opname'
    directly instead of calling `build_opid'.

Tue Nov 19 16:02:51 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * c-decl.c (xref_tag): If we find wrong kind of type, return it.
    (lookup_tag): Fill in pending_invalid_xref_file, ..._line.

    * real.h (REAL_VALUE_TRUNCATE): New argument MODE.
    * cse.c (simplify_unary_operation, simplify_binary_operation):
    Pass that arg.
    * c-parse.y, objc-parse.y, cp-lex.c (yylex): Likewise.
    * fold-const.c (combine): Truncate floating result to fit mode.
    (fold): Don't add 1 to float constant if that doesn't change the value.

Tue Nov 19 09:37:36 1991  Michael Meissner  (meissner at osf.org)

    * configure (ns32k-encore-osf): Restore Encore Multimax using the
    OSF/rose object format, since the necessary files, such as
    tm-encrose.h, are present in the distribution.

Mon Nov 18 21:38:13 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * out-sparc.c (output_cbranch): Always emit a nop before a FP branch
    to avoid illegal assembly output.
    * sparc.md: Don't define delay slot for FP compare insns.  This was
    meant to solve the above problem, but fails with insn scheduling.

    * sparc.md (movsi): Must accept 'f' in addition to 'r' because
    combine can convert FP hard registers to SImode.

Mon Nov 18 13:43:12 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * rtlanal.c (replace_regs): Correct code that prevents nested SUBREGs.

Mon Nov 18 13:43:12 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * c-decl.c (finish_decl): Reinstall lost end_temporary_allocation.

    * tree.h (DECL_LANG_FLAG_8): Deleted.
    * print-tree.c (print_node): Don't use it. Do print DECL_IGNORED_P.

Mon Nov 18 06:59:37 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-decl.c (value_identifier): Gone, following c-decl.c.  Now use
    zero DECL_NAME for this purpose.
    * cp-typeck.c: Also affected by this change.

    * c-lang.c, objc-lang.c (lang_output_debug_info): New function.
    * dbxout.c (dbxout_type_methods): Fix minor problems arising from
    assuming all RECORD_TYPE are C++ RECORD_TYPE nodes.
    (dbxout_type): Ditto.

Sun Nov 17 17:33:58 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * tree.c (struct obstack_stack): New slots expression and rtl.
    (push_obstacks, push_obstacks_nochange, pop_obstacks):
    Save and restore all 4 obstack vars individually.

    * c-decl.c (start_decl): Call push_obstacks_nochange here.
    (push_parm_decl, grokfield): Also here.
    (finish_decl): Not here.
    Also clean up test for whether to replace DECL_INITIAL with error mark.

Sun Nov 17 14:25:15 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-typeck.c (c_expand_return): Be more careful about throwing
    away only cleanup generated by 'build_functional_cast'.

    * cp-init.c (build_new): Use TRUE_TYPE instead of TYPE more
    consistently, in case TYPE is really an ARRAY_TYPE on its own.

    * cp-dbxout.c: Gone.  Now G++ uses dbxout.c.
    * cp-tree.h (OPERATOR_NAME_P): Changed to IDENTIFIER_OPNAME_P.
    (OPERATOR_TYPENAME_P): Changed to IDENTIFIER_TYPENAME_P.
    (OPERATOR_{NEW,DELETE}_FORMAT): Deleted.
    * cp-lex.c (ansi_{opname,assopname}): New variables.  All cp-* files
    changed to use these where comparisons against *_FORMAT were made.
    (init_lex): Initialize `ansi_{opname,assopname}' arrays.
    Also, update {opname,assignop}_tab grok new ANSI equivalences.
    (build_operator_fnname): Changed to build ANSI-style overloaded
    names.
    * cp-dem.c (optable): Add new ANSI equivalences.
    (cplus_demangle): Fixed to recognize new ANSI demangling.  Note that
    old-style destructors, and possibly other codes were broken by the
    (undocumented) 27 Oct changes.

    * cp-decl2.c (grokclassfn): Set DECL_CLASS_CONTEXT here.
    * cp-class.c (finish_struct): Don't skip over FUNCTION_DECL that
    already has a DECL_CLASS_CONTEXT.

    * cp-except.c (cplus_expand_end_try): Set BLOCK_HANDLER_BLOCK for
    blocks that handle exceptions.
    (EXCEPTION_NAME_PREFIX): Shorted to "__ex" (from "__exception").
    (EXCEPTION_NAME_LENGTH): Reduced to 4 from 12.

    * dbxout.c (flag_minimal_debug): Define new variable that is
    non-zero when symtab output routines can output abbreviated.
    (dbxout_type_fields): Move code that writes out debugging info about
    fields of RECORD_TYPE and UNION_TYPE nodes from `dbxout_type' into
    this function.
    (dbxout_type_{method,method_1}): Move code from `dbxout_type' into
    these new functions.
    (dbxout_type): Now writes out info about basetypes.  Also, no longer
    need to record info about types having ctors, dtors, or both.  GDB
    now figures out what it needs to, when it needs to.
    (dbxout_symbol): Implement special abbreviated form for C++ classes,
    which place their names in both the struct and decl namespaces.
    (dbxout_block): Write out special debugging stabs for exception
    handler blocks.

    * tree.h (BLOCK_HANDLER_BLOCK): Define new flag to indicate that a
    BLOCK is an exception handler block (a `catch' block for C++).
    (TREE_VFIELD, DECL_IGNORED_P): New macros.

Sat Nov 16 22:21:56 1991  Jeffrey A Law  (law at super.super.org)

    * tm-m68k.h (CONST_COSTS): Integer values between -128 and 127
    inclusive are very cheap because of moveq.

Sat Nov 16 00:40:04 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * Makefile.in (install-cross-tools): Avoid clobbering symlinks already
    made.  Double the $ before the @ in the indirection script.

    * t-decstatn: New file.
    * configure: (mips-dec-ultrix*): Use t-decstatn.

    * collect-ld: Always run collect if collect is installed.

    * collect-osf.c, enquire.c, gnulib2.c: Use gstddef.h, not stddef.h.

    * gnulib2.c (__eprintf): Undef NULL.

    * c-typeck.c (build_array_ref): Ref is volatile if array is volatile.

Fri Nov 15 19:53:41 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * c-typeck.c (build_binary_op_nodefault): Delete ERROR_CODE
    argument because it is always the same as CODE.  Add new argument
    CONVERT_P, and call default_conversion on the operand trees if
    true.  Rename to build_binary_op.
    (old build_binary_op): Deleted because it is now unnecessary.
    * c-common.c, c-convert.c, c-decl.c, c-tree.h, c-typeck.c: All
    callers and other references to build_binary_op* fixed.
    * c-typeck.c (new build_binary_op): Add warning message for
    comparisons of signed and unsigned variables that won't give the
    expected result due to unexpected sign extension.

    * expr.c (convert_move): Add TFmode support and clean up code.
    * optabs.c (init_fixtab): Add TFmode support.
    (init_floattab): Likewise.
    (expand_float): Likewise.
    (expand_fix): Likewise.
    (init_optabs): Likewise.

    From Per Bothner:
    * collect2.c: Define vfork as fork for USG.  Rewrite to not use
    prototypes, so it doesn't need gcc for compilation.
    (main): No longer uses static sized array for ld arguments, so
    that long command lines will work.  Vfork ld instead of running
    via popen with nm.
    (write_hooks): Use type names not variable names in sizeof calls.

Fri Nov 15 15:01:41 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * fold-const.c (size_int): Properly preserve old obstack settings.
    * c-decl.c (finish_decl, grokdeclarator, xref_tag): Likewise.
    * stor-layout.c (layout_type): Likewise.
    * varasm.c (output_constant_def): Likewise.
    * tree.c (push_obstacks_nochange): New function.

    * stor-layout.c (layout_type): Make size of temp type saveable.
    * tree.c (saveable_allocation): New function.

    * configure: Comment out certain alternatives not yet updated.
    (sparc-unicom-*, m68k-tti1-*, m68-tti2-*): New alternatives.
    (m88k-*-v88r32*): New alternative.
    (i386-alternate-sysv): New alternative, not sure why.
    (sparc-*-sysv*): Commented out--not really supported.

Fri Nov 15 22:22:32 PDT 1991  Mike Stump (mrs at csun.edu)

    * configure: Recognize only canonical names.  Added missing entries
    for some configurations that obviously have not been tested in a
    while.

    * config.subr: Massive overhaul.  It claimed to canonicalize
    the machine specification, but it never really did.  Now it
    does.  In general, it is not necessary to specify the os for
    popular machines that have a popular os, or given the os, it
    can sometimes figure out the vendor.  Added in all the old
    ways of specifying machines from configure.  Also added
    support for all (before it was missing a few) of the tm-*.h
    files.  It now supports the concept of guessing the vendor for
    a given CPU type.  It now supports the concept of guessing the
    os version given the vendor and/or the CPU type.  Changed the
    default os for vax to ultrix, changed the default os for i386
    to sco.

    * collect-ld:  New file.  It is useful when compiling C++ programs
    on machines that use collect.  This includes the decstation.

Fri Nov 15 14:19:29 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * out-sparc.c: Singlemove_string no longer static.
    (emit_move_sequence): Emit sethi/low_sum insn pair for values which
    are not arith_double_operands, was missing not.
    * sparc.md: DImode sethi pattern now uses singlemove_string to load
    a constant into a reg.
    * tm-sparc.h (LEGITIMATE_CONSTANT_P): Accept anything except a
    floating point constant.
    Declare singlemove_string so it can be used in sparc.md.

    * jump.c (jump_optimize): Correct typos in comments.

Fri Nov 15 08:05:26 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * out-rs6000.c (scc_comparison_operator): Allow non-FP EQ.

    * combine.c (subst, case NEG): Correct shift count in code that
    negates ZERO_EXTRACT to SIGN_EXTRACT.

Thu Nov 14 23:03:46 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * genrecog.c (try_merge_1): Add big new comment.

Thu Nov 14 19:28:57 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * m68k.md: Fix peephole that merges a stack adjust with a push to
    use addqw instead of addql since we know we are incrementing an
    address register (sp).

    * loop.c (scan_loop): Rework code that looks for loops starting at the
    exit test; don't skip non-jump insns at start of loop and modernize
    and clean up code.

    * gcc.texinfo (SECONDARY_RELOAD_CLASS): Update description to
    show uses for both intermediate and scratch registers.
    * reload.h (SECONDARY_{INPUT,OUTPUT}_RELOAD_CLASS): Default from
    SECONDARY_RELOAD_CLASS, if defined.
    (HAVE_SECONDARY_RELOADS): Defined if any of the secondary reload
    macros are defined.
    (reload_secondary_icode, reload_{in,out}_optab): New vars.
    * reload.c: Include insn-codes.h.
    (find_secondary_reload): New function.
    (push_reload): Call find_secondary_reload to process input and
    output reloads.  Create both secondary and tertiary reloads,
    as required.
    * reload1.c: Include insn-codes.h.
    (init_reload): Initialize reload_{in,out}_optab.
    (emit_reload_insns): Handle cases where a secondary reload
    is a scratch register and where tertiary reloads are required.
    * Makefile.in (reload.o, reload1.o): Now include insn-codes.h.

    * tm-romp.h (SECONDARY_OUTPUT_RELOAD_CLASS): Define to use a BASE_REGS
    for symbolic memory locations.
    * romp.md (reload_outsi, reload_outhi, reload_outqi): New patterns.

    * expr.c (expand_expr): Pass BRANCH_COST to do_store_flag.
    (do_store_flag): Canonicalizations done in emit_store_flag
    need to be done here as well.
    Test for ffs as well as abs when seeing if scc is expensive.
    * expmed.c (emit_store_flag): Correct cases that are open-coded:
    Add a few missing cases and correct handling of normalizep.
    * combine.c (simplify_shift_const, case IOR): Convert sequence
    open-coded by emit_store_flag into LE or (neg (le ..)), as
    appropriate.
    (simplify_shift_const, case MINUS): Similarly, for GT.
    (simplify_comparison): sign_bit_comparison_p now true only if
    also comparing against constant zero.
    (simplify_comparison, case NOT): If sign bit comparison, just
    reverse comparison.
    (simplify_comparison, case MINUS): Move case where we subtract
    one from the absolute value of something to PLUS, since we
    subtract one using a PLUS operation.
    (simplify_comparison, case MINUS): Handle GT case done by
    emit_store_flag.
    (simplify_comparison, cae IOR): Similarly, for IOR.

    * tm-rs6000.h (BRANCH_COST): Define as 2.
    * rs6000.md (scc): Allow some more cases.
    (new scc patterns): Add numerous patterns to reflect superoptimizer
    results for scc insns on RS/6000.

Thu Nov 14 16:42:19 1991  Michael Meissner  (meissner at osf.org)

    * mips-tfile.c (all): Change small allocation requests to use
    separate allocation and free functions, instead of using the word8
    union to hold each request.  In order to support this easily, a free
    field was added to each small structure that is released.
    (main): If debugging, print a summary of the number of small
    allocations, frees, and the number of pages used.
    (add_procedure, copy_objects): Stuff the pointer to the end symbol
    into the shash chain, and use it's value to generate the new value
    for the computed end block.  This is much safer than trying to
    calculate this on the fly.
    (main): Don't try to avoid using malloc by setvbuf'ing the streams
    we use.

Wed Nov 13 23:47:10 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    From [e-mail]:
    * sparc.md: In DF load peephole, use operands not xoperands, so
    that output_asm_insn will use the right values.

    * tm-sun3.h, tm-sun2os4.h: Define PTRDIFF_TYPE, SIZE_TYPE,
    WCHAR_TYPE same as tm-sparc.h.

    * c-decl.c (finish_function): Don't clear current_function_decl
    for nested functions.

    * dbxout.c: Include insn-config.h and reload.h.
    (dbxout_symbol): Pass DECL_RTL (decl) through eliminate_regs before
    using.
    (dbxout_parms): Pass DECL_RTL and DECL_INCOMING_RTL of parms through
    eliminate_regs before using.
    * sdbout.c: Include insn-config.h and reload.h.
    (sdbout_symbol): Pass DECL_RTL (decl) through eliminate_regs before
    using.
    (sdbout_parms): Pass DECL_RTL and DECL_INCOMING_RTL of parms through
    eliminate_regs before using.
    * Makefile.in: Update dependency lists for dbxout.c and sdbout.c.

    * combine.c (try_combine): Don't pass sets with (USE (MEM ...))
    dests to reg_referenced_p.

Wed Nov 13 21:38:03 1991  John Bunda (bunda at cs.utexas.edu)

    * reload1.c (gen_input_reload): If IN is a PLUS whose second arg
    is the same as the reload register, swap the args of the PLUS.

Wed Nov 13 14:43:09 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * tm-sparc.h (OPTIMIZATION_OPTIONS): Don't redefine options set in
    toplev.c, only effect flag_omit_frame_pointer.

    * sparc.md: Delete obsolete sign_extract and zero_extract patterns.
    We get better code without them.
    (indirect_jump, tablejump): Extend indirect_jump pattern to accept
    any address, not just a register.  Add tablejump like pattern which
    also accepts any address.

    * unroll.c (final_biv_value): Make sure the initial value of the biv
    is invariant if it is used after the loop.

Tue Nov 12 23:16:51 1991  Michael Meissner  (meissner at osf.org)

    * tm-mips.h (ASM_OUTPUT_REG_PUSH, ASM_OUTPUT_REG_POP): Correct so
    ASM_OUTPUT_REG_PUSH actually does a push instead of pop, and vica
    versa.  Also make ASM_OUTPUT_REG_POP turn on .set noreorder, and
    increment the appropriate -mstats load delay counters.

Tue Nov 12 22:53:45 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * expr.h (BRANCH_COST): Supply default value here.
    * jump.c (BRANCH_COST): Don't default BRANCH_COST here.

    * global-alloc.c (global_alloc): Use proper entry in eliminables
    when searching for the frame pointer.

Tue Nov 12 22:23:36 1991  Jim Wilson  (wilson at sphagnum.cygnus.com)

    * expr.c: (expand_expr, MIN_EXPR case): Check for const_true_rtx
    not const1_rtx as return value from compare_from_rtx.
    (do_jumps_by_part_greater): Handle const0_rtx and const_true_rtx
    return values from compare_from_rtx.
    (do_jumps_by_part_equality, do_jumps_by_part_equality_rtx): Likewise.

    * sched.c (sched_analyze_2): Correctly handle ASM_OPERAND and
    ASM_INPUT rtx.  Volatile and traditional asm statements are
    assumed to use and clobber all hard registers and all memory.
    (schedule_block): Delete code that incorrectly handles ASM_OPERAND
    and ASM_INPUT rtx by exiting early.

Tue Nov 12 15:38:56 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * sched.c: Introduce names for various priority values.  Reduce
    LAUNCH_PRIORITY to avioid wrap-around in launch_link.

Tue Nov 12 14:21:52 1991  Per Bothner  (bothner at cygnus.com)

    * cp-lex.c (init_lex):  Exception-handling fixes.
    * cp-tree.h:  Add new OPERATOR_CHARS_P that is like
    OPERATOR_NAME_P, except if takes a (char*), not a tree.
    * cp-dbxout.c (dbxout_type_methods):  Handle operators
    specially when chopping prefix for minimal_debug.

    * config/tm-news.h: In PRINT_OPERAND, recognize new 68040
    operand types.  Add definition of CPP_DEFINES for cross-compiling.

Tue Nov 12 13:11:01 1991  Michael Meissner  (meissner at osf.org)

    * protoize.c (__OSF1__ ifdef): Remove OSF/1 specific ifdefs, since
    the problem they address has been fixed, and the ifdefs now cause
    spurious warnings.

    * tm-mips.h (INT_TYPE_SIZE): Define.
    (SHORT_TYPE_SIZE): Define.
    (LONG_TYPE_SIZE): Define.
    (LONG_LONG_TYPE_SIZE): Define.
    (CHAR_TYPE_SIZE): Define.
    (FLOAT_TYPE_SIZE): Define.
    (DOUBLE_TYPE_SIZE): Define.
    (LONG_DOUBLE_TYPE_SIZE): Define.

    * out-mips.c (block_move_load_store): New commn function to create
    one load and store for the block move functions.  The load is
    emitted directly, and the store is returned, to be emitted later.
    (block_move_sequence): Call block_move_load_store.  For straight
    line moves, have two outstanding loads before a store, for newer
    machines that want two delay slots.
    (block_move_loop): Call block_move_load_store.  Move 4 words per
    loop, for a loop that moves 16 bytes in 11 cycles if aligned, and 16
    bytes in 19 cycles if not aligned.
    (block_move_memcpy): Change argument names for consistancy.
    (expand_block_move): Always move address into a register, even for
    one byte moves.  Fix bugs in calling memcpy.  If moving a large
    constant amount of unaligned data, emit a runtime check to see if
    the data is really aligned, and if so do an aligned move, otherwise
    an unaligned move loop.

    * mips-tfile.c (toplevel): Make some changes, so that mips-tfile can
    be debugged on OSF/1.
    (efdr structure): Align identifiers in declaration.
    (cur_proc_value): Delete variable.
    (cur_oproc_begin): New global to record original proc .ent symbol.
    (cur_oproc_end): New global to record original proc .end symbol.
    (add_procedure): Set cur_oproc_begin, cur_oproc_end variables
    instead of cur_proc_value.
    (parse_begin, parse_end): Add check for cur_oproc_begin being set.
    (parse_end): Use cur_oproc_end's value node for new value node.
    (main): Add cast to free_multiple_pages call.

Tue Nov 12 08:57:39 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * jump.c (jump_optimize): Merge the "if (...) x = 0;" case with
    the "x = a; if (...) x = b;" case.

Mon Nov 11 19:27:03 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * cp-cvt.c (convert_pointer_to): Correctly get type of a TREE_VEC
    object.  (This patch is from someone at Cygnus.)

    * combine.c (try_combine): Add missing parens.

Mon Nov 11 19:26:24 1991  Ron Guilmette  (rfg at ncd.com)

    * c-typeck.c (build_binary_op_nodefault, convert_for_assignment):
    A (void *) object is compatible with a function pointer if it is
    the constant zero.
    (build_conditional_expr): Properly check for pointers to functions.

Sun Nov 10 19:59:12 1991  Michael Meissner  (meissner at osf.org)

    * cccp.c (make_undef): Fix by off by one error.
    (MIN, MAX): Add #undef, in case some system include file defined
    these macros.

Sun Nov 10 10:34:17 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-decl2.c (grokfield): Set TREE_EXTERNAL on static const
    decls that are either uninitialized in their initial declaration,
    or initialized by something we cannot evaluate at initial
    declaration time.

    * cp-init.c (build_new): Make `operator new' with placement cast
    its return type to the type of the object being allocated.

    * cp-typeck.c (commonparms): If the last element of P1 is
    VOID_LIST_NODE, use that.

    * stor-layout.c (layout_record): Return PENDING_STATICS.
    (layout_type): Don't commit static members to a particular mode
    until REC has been laid out completely.

Sat Nov  9 23:16:51 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * cccp.c (fancy_abort): Don't declare as static.

Sat Nov  9 20:38:30 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-decl.c (push_overloaded_decl): Don't cons new decl to
    existing ERROR_MARK_NODE.  If the old decl was erroneous, just
    ignore it.

    * cp-call.c (ideal_candidate): Fix typo in error message.

Sat Nov  9 14:13:46 1991  Jeffrey A Law  (law at super.super.org)

    * tm-hp9k2bsd.h (MULSI3_LIBCALL): New define which avoids
    the use of __mulsi3 for signed integer multiplication.
    (UMULSI3_LIBCALL, DIVSI3_LIBCALL, UDIVSI3_LIBCALL): Likewise.
    (MODSI3_LIBCALL, UMODSI3_LIBCALL): Likewise.

Fri Nov  8 12:05:39 1991  Per Bothner  (bothner at cygnus.com)

    First cut at ANSI-style exception handling (using
    syntax and semantics of Stroustrup 2nd ed).
    THIS IS WORK IN PROGRESS!
    * cp-tree.h:  Declare flag_ansi_exceptions.
    * gplus.gperf:  Add 'throw' (for ANSI exception handling),
    and update private/protected/public from (old) cp-lex.c.
    * cp-hash.h:  New file, generated from gplus.gperf.
    * cp-lex.c: #include cp-hash.h, instead of requiring
    manual cut-and-paste when keywords are changed.
    * cp-lex.c:  Commented out some extern declarations that
    were conflicting with inlines in cp-input.c.
    Hooks for ANSI-style exception handling.
    * cp-parse.y:  Parse ANSI-style exception stuff.
    * cp-decl2.c:  Define new flag flag_ansi_exceptions.
    * cp-decl2.c (finish_table):  Off-by-one error in
    calculating index type.
    * clus-decl2.c (finish_vtable_vardecl):  Add missing
    TREE_OPERAND to get dossier decl.
    * cp-except (cplus_expand_start_except):  Allow NULL name,
    since there is no distinguished name for ANSI exceptions.
    * cp-except (cplus_expand_raise):  Too few
    parameters to expand_expr; add them.
    * cp-except.c:  New functions for ANSI exceptions:
    cplus_exception_name, ansi_exception_object_lookup,
    cplus_expand_throw, ansi_expand_start_catch.
    These are heavily hacked from similar old functions.

    Try to make -fdossier work better (but more work is needed).
    (Especially, generate fewer unneeded descriptors.)
    * cp-class.c (add_virtual_function, finish_struct):  Do not
    create a vtable just because of -fdossier.
    * cp-gc.c:  Each type points to an array of fields,
    instead of an array of pointers to fields.  Ditto for methods.
    This saves one pointer per field or method by removing
    unneded extra indirection.  Also other tweaks to save space.
    * cp-decl.c (init_decl_processing):  Add length of
    field and method arrays to descriptors, instead of
    relying on NULL-termination (since we no longer have
    the extra pointer array).
    Make the parameter count and required count of
    method descriptors be shorts.
    * cp-method.c:  Remove no-longer-needed functions
    build_i_desc_overload and build_m_desc_overload.

    Other C++ fixes:
    * cp-dbxout.c (dbxout_symbol):  Class types were
    emitting only a "t" spec which made gdb unhappy.
    Kludged it so that it once more emits "Tt".
    * cp-tree.c (lang_output_debug_info):  Do emit debugging
    info if this implementation file corresponds the the
    type's interface, even if nothing is written.

Fri Nov  8 08:18:55 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * tm-m88k*.h: Fix comments, minor cleanups.

Thu Nov  7 16:21:05 1991  Torbjorn Granlund  (tege at mole.gnu.ai.mit.edu)

    * longlong.h (__ibm032__): Fix operand order for add_ssaaaa and
    sub_ddmmss.

Thu Nov  7 12:47:14 1991  Michael Meissner  (meissner at osf.org)

    * tm-mips.h (MIPS_VERSION): Bump meissner version number to 3.3.
    (PCC_BITFIELD_TYPE_MATTERS): Define this to be 1.

    * out-mips.c (block_move_loop): New function to generate a loop to
    do a block move.
    (block_move_call): Pass the source, destination, size as separate
    arguments, rather than a pointer to an array of operands.
    (expand_block_move): Change block_move_call calling sequence.
    (expand_block_move): If moving big aligned items, generate a loop to
    do it, rather than calling memcpy/bcopy.
    (override_options): If -msoft-float, 'f' constraint picks GP
    registers.

    * t-decrose (collect): Use ALL_CFLAGS instead of CFLAGS, since this
    gets the shared library flags in x-decrose.

Thu Nov  7 07:57:36 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * tm-m88k.h (MEMORY_MOVE_COST): Define.
    (TARGET_88*): Fix.

Wed Nov  6 19:07:42 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * a29k.md (negsf2, negdf2): Add missing CLOBBER in 29050 case.

    * jump.c (jump_optimize): When looking for a conditional jump
    skipping an unconditional jump, be sure the conditional jump is
    not an unconditional jump.

    * combine.c (try_combine): If we make an unconditional jump,
    be sure it is followed by a BARRIER.
    (subst, case SET): Convert (set (pc) (return)) to (return).

Wed Nov  6 13:41:55 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * tm-m88kv3.h, xm-m88kv3.h: Renamed from *m88ksysv3*.

Wed Nov  6 09:27:16 1991  Michael Meissner  (meissner at osf.org)

    * tm-mips.h (MIPS_VERSION): Bump meissner version number to 3.2.
    (TARGET_SWITCHES): Add -msoft-float and -mhard-float.
    (GP_RETURN): Use GP_REG_FIRST as base of GP registers.
    (FP_RETURN): Use FP_REG_FIRST as base of FP registers.  If
    -msoft-float, make $2 be the return register.
    (GP_ARG_FIRST, GP_ARG_LAST): Use GP_REG_FIRST as 1st GP reg.
    (FP_ARG_FIRST, FP_ARG_LAST): Use FP_REG_FIRST as 1st FP reg.

    * mips.md (ffssi2, ffssi2_internal): Fix ffs builtin so that it
    doesn't clobber the input argument by turning it into a
    define_expand, and using a parallel operation including the
    necessary clobber's.
    (abssi2, ffssi2, ffssi2_internal): Use the 'd' constraint which only
    matches the integer registers, rather than 'r' which can match
    floating point registers as well.

    * tm-mips-news.h (CPP_SPEC): Add -Dnews7300, -Dsony_news, -Dmips,
    and -Dhost_mips.

Wed Nov  6 08:46:54 1991  Mark Eichin  (eichin at cygnus.com)

    * cp-class.c (add_method): when adding a new constructor or
    destructor, actually chain onto method_vec[0] rather than replacing
    the list with the current entry.

Wed Nov  6 07:04:55 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * expr.c (store_field): Handle case where we are storing into a BLKmode
    field of an object that is in a register.
    (expand_expr, case COMPONENT_REF): Handle case where we are extracting
    a BLKmode field from an object in a register.

Tue Nov  5 22:16:39 1991  Michael Meissner  (meissner at osf.org)

    * tm-mips.h (target_flags): Delete second declaration.
    (MASK_G0, MASK_G1, MASK_G2): Delete, since -G xx now works to set
    the size of the small data/bss area cutoff.
    (MASK_G012_USED, MASK_G012_NUSED): ditto.
    (TARGET_GVALUE): ditto.
    (TARGET_G012_USED): ditto.
    (TARGET_SWITCHES): Delete -mGx, -mno-Gx switches.
    (TARGET_DEFAULT): Set to 0 instead of MASK_G012_NUSED.

    * tm-decrose.h (TARGET_DEFAULT): Eliminate MASK_G012_NUSED.

    * out-mips.c (override_options): Remove support for -mGx and -mno-Gx
    switches to set the cutoff size for small data/bss.

    * mips.md (abssi2): Add new pattern.
    (ffssi2): Add new pattern.

Tue Nov  5 18:36:29 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * gcc.texinfo (MEMORY_MOVE_COST): Document new macro.
    * regclass.c (MEMORY_MOVE_COST): Default it to 2.
    (regclass, reg_class_record): Use MEMORY_MOVE_COST, not constant 2.
    (regclass): Look at result of single_set instead of checking again if
    pattern is a SET.
    * tm-rs6000.h (MEMORY_MOVE_COST): Add definition.

Tue Nov  5 17:01:05 1991  Ken Raeburn  (raeburn at cygnus.com)

    * cp-pt.c (tsubst): For char_type_node, just build variant and
    return it.
    (tsubst, case FUNCTION_DECL): Walk methods more efficiently.

    * cp-pt.c (overload_template_name): Push a binding level, to
    separate template name binding from method parameters.  Check
    identifier value slots for TYPE_DECLs, not RECORD_TYPEs.  Don't need
    to do extra push of TYPE_DECL for template name.
    (undo_template_name_overload): Pop it.  Don't need to explicitly
    clear template name binding.

    * cp-ptree.c (print_lang_decl): For FIELD_DECL, don't try to
    print fields that go off the end of the lang_decl_flags structure.

    * cp-pt.c (pop_template_decls): Don't explicitly clear out value
    slots of identifier; let poplevel/poplevel_class do it.

    * cp-pt.c: Use build_lang_decl insteaed of build_decl for
    all TEMPLATE_DECL and TYPE_DECL nodes.

    * cp-tree.h (make_anon_name): Declare it.

    * cp-pt.c (unify): Deleted unreachable code.

    * cp-decl.c (push_overloaded_decl): Fixed typo from merge.
    (start_decl): Ditto.
    (grokdeclarator, case CALL_EXPR): Remove debug_tree call
    accidentally left in.  Handle constructor templates specially, like
    destructor templates.  Removed some commented-out code.
    (grokdeclarator, case SCOPE_REF): If the type is uninstantiated,
    treat it like any other aggregate type code.

    * cp-lex.c (identifier_typedecl_value): If no binding slot from
    the identifier is the right type decl, use the type name if it is
    non-null, even if the name doesn't match.
    (build_lang_decl): If new decl node is TREE_PERMANENT, make sure the
    lang-specific info gets allocated that way too; don't assume that
    the current obstack is permanent.
    (copy_decl_lang_specific): If decl is TREE_PERMANENT, assert that
    the current obstack is permanent.

    * cp-parse.y (template_def): Delete derivations that were
    purportedly for constructors; they didn't work.
    (notype_declarator): Deal with them here.
    (template_instantiate_once): Copy decl node with permanent obstacks,
    thereby clearing the chain pointer, before pushing it into top
    level.
    (structsp): Don't need to undo template name overload here.
    (scoped_typename): Want TYPENAME with template type, not PTYPENAME.

Tue Nov  5 13:46:06 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * sdbout.c (sdbout_init, sdbout_symbol): Don't reverse the
    permanent types.

    * cccp.c (make_definition): Eliminate previous change associated
    with pretty-printing strings passed to do_define.
    (pass_thru_directive): Move pretty-printing here.

Tue Nov  5 11:21:34 1991  Michael Meissner  (meissner at osf.org)

    * tm-mips-news.h (ASM_SPEC, LINK_SPEC): Correctly pass -EB instead
    of -EL, since the Sony News system is big endian not little endian.

Tue Nov  5 09:54:08 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * tm-m88kv4.h, t-m88kv4, x-m88kv4: Renamed from *m88ksysv4*.

Tue Nov  5 06:36:07 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * cse.c (simplify_relational_operation, unsigned comparisons): Don't
    simplify unless mode of operand is a MODE_INT mode.

    * Makefile.in (*CFLAGS): More clearly document the purposes of each
    of the flags.  Add X_CFLAGS and T_CFLAGS for x-* and t-* to override.
    * x-decrose, x-hp9k320g, x-i386isc, x-m88ksysv4, x-mips, x-tower:
    Override X_CFLAGS instead of CFLAGS or INTERNAL_CFLAGS.
    * x-vax: Likewise.
    * x-sco: Don't include XCFLAGS in definition of CFLAGS.

    * gstddef.h: Renamed from stddef.h.
    * Makefile.in (USER_H, install-common-headers): Install gstddef.h as
    stddef.h.

Mon Nov  4 17:54:04 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * integrate.c (save_constants): If we are referencing a constant in
    the constant pool in a different mode than its normal mode, make
    a SUBREG so that we can record both modes.
    (copy_for_inline, restore_constants): Handle these SUBREG's.
    (copy_for_inline): Must copy a MEM if it's address contains an
    ADDRESS (i.e., the address of a constant pool entry).

    * expr.c (expand_expr, case PLUS_EXPR): If adding constant, FP, and
    something else, add FP to the constant and then add the other operand.

    * global-alloc.c (find_reg): If all_regs_p, use ALL_REGS, not
    GENERAL_REGS.
    * local-alloc.c (block_alloc): Likewise.

    * genoutput.c (gen_expand): Record all the same information as
    for a DEFINE_INSN.

    * cse.c (simplify_binary_operation, case PLUS): Simplify expressions
    like (a +/- b) - (a +/- c).
    (simplify_binary_operation, case MULT): For X * (-1), try to simplify
    the NEG before we make it.

Mon Nov  4 16:29:01 1991  Mark Eichin  (eichin at cygnus.com)

    * cp-pt.c (overload_template_name): use build_lang_decl so that
    lang_specific gets initialized properly.

    * cp-parse.y (LC): use make_lang_type to produce complete node,
    not just make_node.

    * cp-ptree.c (print_lang_type): return if TYPE_LANG_SPECIFIC is
    null, since everything printed here is in lang_specific.

Mon Nov  4 16:17:48 1991  James Van Artsdalen  (james at raid.dell.com)

    * x-i386v4: New file.
    * configure (i386-sysv4): Use it.

Mon Nov  4 12:36:09 1991  Michael Meissner  (meissner at osf.org)

    * gcc.texinfo (BRANCH_COST): Move so BRANCH_COST formats correctly.

Mon Nov  4 08:03:44 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * x-m88kdgux, x-m88ksysv4: Don't set XCFLAGS.

    * jump.c (jump_optimize):  Change "if (...) x = 0;" to use a
    store-flag insn if jumps are expensive (BRANCH_COST).

    * tm-m88k.h (BRANCH_COST): Branches are cheap on the m88100.
    (OVERRIDE_OPTIONS): Make m88100 the default.
    (STORE_FLAG_VALUE): Use -1.
    (.ctors and .dtors sections): Change section flags.
    * m88k.md (sxx, negate sxx): Use ext and extu.  Eliminate extendsxx.

Mon Nov  4 07:19:36 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * romp.md (movdf, movdi): When splitting, ensure we put in a CLOBBER
    for a scratch register, when needed.

    * tm-a29k.h (SIZE_TYPE, PTRDIFF_TYPE, WCHAR_TYPE): Define to be
    compatible with those chosen by EPI.

    * tm-rs6000.h (REG_ALLOC_ORDER): Put CR registers before integer regs.

    * cse.c (simplify_relational_operation): Fix error in last change.

Sun Nov  3 12:22:41 1991  Torbjorn Granlund  (tege at sics.se)

    * longlong.h (m68020 count_leading_zeros): Fix typo in previous
    change.

Sun Nov  3 09:25:39 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * cse.c (simplify_relational_operation, cases GEU, LTU, GTU, LEU):
    Simplify comparisons that have known values such as (unsigned) x < 0.

    * final.c (final_scan_insn): If we've just made a branch unconditional,
    convert (set (pc) (return)) to (return).
    Use const_true_rtx instead of calling gen_rtx to make it again.

    * x-romp (CC): Pass -Hnocpp to hc so it will use builtin preprocessor.
    (INTERNAL_CFLAGS): Don't define BSTRING here.
    * xm-romp.h (alloca): Add definition to allow use of hc's builtin.
    (BSTRING): Define here.

    * reload1.c (spill_hard_reg): Correct typo in previous change; had
    test backwards.

    * function.c (instantiate_virtual_regs_1, case PLUS): If can't
    replace operand with register, try to replace all copies of operand
    with the register in case of MATCH_DUP.

    * recog.c (validate_replace_rtx_1): Use rtx_equal_p to see if
    things are equal.

    * genconfig.c (max_recog_operands, max_dup_operands): Remove `_flag'
    in name since these aren't flags.
    (max_clobbers_per_insn): Likewise.
    (main): Default to at least 10 operands (for asm) and 1 dup operand.

Sun Nov  3 07:26:57 1991  Ron Guilmette  (rfg at ncd.com)

    * Makefile.in (gnulib1.null): Use $(GCC_FLAGS) instead
    of $(CCLIBFLAGS).
    (gnulib1): Don't copy gnulib1.c into a temporary .c file before
    compiling.  That messes up the source file names in the debug info,
    which makes it harder to debug gnulib1 problems.

    * Makefile.in (install-*): Force removal of previously installed files
    before installing new ones (in case they got set to read-only somehow).

    * Makefile.in (uninstall): Remove protoize.1 and unprotoize.1 man
    page files.

Sat Nov  2 22:42:06 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * out-a29k.c (output_epilog): Remove write_symbols from parameter list
    of call to final_scan_insn.
    * out-m88k.c (preserve_registers): Likewise.
    * out-mips.c (function_epilogue): Likewise.
    * out-sparc.c (output_function_epilogue, output_tail_call): Likewise.

Sat Nov  2 22:02:45 1991  Ken Raeburn  (raeburn at cygnus.com)

    * cp-search.c (push_class_decls): Added missing argument to
    overload_template_name.

    * cp-ptree.c (print_lang_decl): Don't print lang-specific fields
    for FIELD_DECL, since it has only the shorter flags structure.

    * cp-class.c (finish_struct_method): Fixed comment typo.

    * cp-decl.c: Add some code for debugging binding level
    manipulations, conditionalized on DEBUG_CP_BINDING_LEVELS.
    (debug_bindings_indentation): New var, used to maintain indentation
    to indicate which changes are on the behalf of other routines.
    (push_binding_level): Print debugging messages to track binding
    level changes and call/nesting sequences.
    (pushlevel, poplevel): Ditto.
    (pushlevel_class): Ditto.
    (pop_binding_level): Ditto.  Also scribble over freed binding level,
    and don't store it for re-use.
    (poplevel_class): Ditto.
    * cp-decl.h (debug_bindings_indentation): Declare it.
    * cp-pt.c (push_template_decls, pop_template_decls): Added
    debugging fprintf calls here too.

Sat Nov  2 17:00:22 1991  Ron Guilmette  (rfg at ncd.com)

    * cp-except.c (finish_exception_decl): Change `enum debugger' to
    `enum debug_info_type'.
    * final.c (final_start_function, final, final_end_function,
    output_source_line): Delete the `write_symbols' parameter.
    Instead use the global `write_symbols' declared in flags.h.
    * sched.c (unlink_notes, schedule_block, schedule_insns): Compare
    `write_symbols' with NO_DEBUG rather than with zero.
    * toplev.c (rest_of_decl_compilation, rest_of_compilation): Don't
    pass `write_symbols' to assemble_variable, final_start_function,
    final, final_end_function.
    * varasm.c (assemble_variable): Delete the `write_symbols' parameter.
    Instead use the global`write_symbols' declared in flags.h

Sat Nov  2 09:48:47 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * caller-save.c: Don't include reload.h; not used.
    * Makefile.in (caller-save.o): Likewise.

    * final.c (final_start_function, final_end_function, final): Change
    enum debugger to enum debug info to finish previous change.
    (final_scan_insn, output_source_line): Likewise.
    * varasm.c (assemble_variable): Likewise.

    * rtlanal.c (modified_between_p, find_last_value): New functions; not
    yet used.
    * rtl.h (find_last_value): Declare.

    * cse.c (simplify_binary_operation): Remove comparison cases from
    here; now in simplify_relational_operation.

Fri Nov  1 19:04:50 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * rtl.h (REG_DEAD): More precisely describe when a REG_DEAD note
    should be present.
    * rtlanal.c (dead_or_set_regno_p): New function.
    (dead_or_set_p): A value is dead or set only if each register in it
    is dead or set.
    * combine.c (reg_bitfield_target): New function.
    (distribute_notes, case REG_DEAD): Place REG_DEAD note only if both
    dead_or_set_p and reg_bitfield_target are false.
    * flow.c (cc0_live): New variable; replaces following_insn_dead.
    (propagate_block): Initialize cc0_live instead of following_insn_dead.
    Track CC0's life just like other regs instead of using special
    mechanism involving following_insn_dead.
    Clear last_mem_set even when not final pass.
    Don't call mark_used_regs on dead insns.
    (insn_dead_p): Use cc0_live to see if a set of CC0 is dead.
    Correctly test if set of multi-word value is needed; set if dead only
    if none of the words are needed.
    (libcall_dead_p): Allow CALL to be in any part of PARALLEL.
    Use insn_dead_p to see if SET of return register is dead; old code
    incorrectly tested multi-word registers.
    (mark_set_1): Track whether all or only some words of a value are
    needed; write partial REG_UNUSED note if only some words won't be
    needed.
    (mark_used_regs): Likewise for REG_DEAD notes.
    Set cc0_live for a reference to CC0.
    Don't write REG_DEAD note if register is already dead or set in INSN.
    No longer check for unused SET_DEST since it won't be called for dead
    insns; if a single SET's result was unneeded but the insn can't be
    deleted, the source of the SET is live.
    Clear last_mem_set even if not final pass.

    * reload1.c (gen_input_reload): Handle REG+MEM the same as REG+INT.

    * gcc.c (xmalloc, xrealloc): Use unsigned instead of size_t for `size'.

    * cccp.c (bcopy, bzero, bcmp): No longer static.  Only declare at
    front of file if we are going to define them later.

Fri Nov  1 18:57:25 1991  Ron Guilmette  (rfg at ncd.com)

    * cccp.c (timebuf): Declaration moved out of `special_symbol' and
    made global (and "static") to get values of __DATE__ and __TIME__
    to remain constant throughout compilation.
    (debug_output): New variable.
    (main): Accept -g3 option and set debug_output when seen.
    (main): Moved initializations of `outbuf' and `fp' to before call
    to `initialize_builtins'.
    Pass fp and &output to initialize_builtins so that it can write out
    artificial #define lines for builtin symbols.
    Call `output_line_directive' before doing each make_define or
    make_undef so that when `debug_output' is in effect, we'll
    get #line 0 directives before each artificial #define or #undef.
    (special_symbol): Initialization of `timebuf' deleted from here.
    (initialize_builtins): Initialize timebuf here.
    (pass_thru_directive): New function.
    (do_define, do_undef): Use `pass_thru_directive' for "precompilation"
    of header files.
    Call `pass_thru_directive' when -g3 option used.
    (initialize_builtins): Generate artificial #define directives (in the
    output) to represent the values of all builtin symbols whose defs
    can't change during compilation.
    (make_undef): Added output buffer param so that make_undef could let
    do_undef do output to stdout.
    Call do_undef with a real output buffer.
    (make_definition): Likewise.
    Many minor changes to get strings passed to do_define to always look
    like correctly formed #define directives.

    * c-decl.c (store_parm_decls): Remove non-params from the list before
    checking to see if the type of any element of the list is complete.
    (pushlevel):  Fixed bug which caused scope of tagged types to be
    incorrectly assigned to the outermost {} block of functions rather
    than to the outermost binding contours of functions.
    (pushtag):  Revised to clarify code used to find applicable
    binding level for a tagname.
    Set TYPE_CONTEXT of new tagged type so that dwarfout.c can tell
    file-scope tagged types from non-file-scope tagged types.
    Create a NULL-named TYPE_DECL node for each new tagged type
    (even incomplete ones).
    (finish_struct, finish_enum): Don't create NULL-named
    TYPE_DECL nodes for complete tagged types.  (This is now done in
    `pushtag' for *all* new tagged type declarations and definitions.)

    * toplev.c (compile_file):  Adjust conditions under which
    `dwarfout_file_scope_decl' is called during final traversal of
    the chain of file-scope decls so that it is called also for
    file-scope TYPE_DECLs.
    (rest_of_decl_compilation):  Deleted call to `dwarfout_file_scope_decl'
    for file-scope TYPE_DECLs; call `dwarfout_file_scope_decl' instead of
    `dwarfout_file_scope_symbol'.

    * dbxout.c, sdbout.c, flags.h, toplev.c:  Change DEBUG_LEVEL_* to
    DINFO_LEVEL_* to prevent possible confusion about meaning.

    * flags.h, toplev.c: (enum debug_info_type):  Renamed type from
    `debugger' and cleaned up definition of type (including deletion
    of useless EXTENDED_DBX_DEBUG code).
    (use_gdb_dbx_extensions): Make declarations conditional on
    DBX_DEBUGGING_INFO being defined.

    * out-i860.c (output_fp_move_double, find_addr_reg):  Add return stmts
    to avoid warnings when compiling with -Wreturn-type.
    (output_delayed_branch):  Fix test for CONST_INT values which must be
    loaded in two instructions (as two halves).
    (function_epilogue):  Remove ASM_OUTPUT_EPILOGUE_SUFFIX.  (Superceeded
    by ASM_DECLARE_FUNCTION_SIZE in varasm.c.)

    * xm-i386.h (i386): Define in case the native host compiler doesn't.

    * tm-svr4.h (SVR4): Define this rather than SVR4_target.
    (ASM_FINAL_SPEC): Support the -pipe option.
    (ASM_DECLARE_FUNCTION_NAME, ASM_DECLARE_OBJECT_NAME): Allow easy
    redefinition of the syntax for second operand of .type.
    (ASM_DECLARE_FUNCTION_SIZE): Fix line continuations.

Fri Nov  1 14:14:14 1991  Michael Meissner  (meissner at osf.org)

    * out-mips.c (mips_asm_file_end): Generate correct code if the user
    uses asm("name").  Patch from [e-mail].

    * mips-tfile.c (init_file initialization): Fix #ifdef
    BYTES_BIG_ENDIAN to be #if BYTES_BIG_ENDIAN, to allow the DECstation
    to work again.
    (toplevel): Remove declarations of internal library functions,
    _flsbuf, _filbuf.

Thu Oct 31 14:59:11 1991  Torbjorn Granlund  (tege at mole.gnu.ai.mit.edu)

    * longlong.h (m68020 count_leading_zeros): Use %b for offset and
    width syntax for bfffo instruction.

Thu Oct 31 05:45:54 1991  Ken Raeburn  ([e-mail])

    * cp-decl.c (PUSH_BINDING_LEVEL, POP_BINDING_LEVEL): Replaced
    uses of macros with their expansions, and deleted the macros.

Wed Oct 30 12:45:33 1991  Ron Guilmette  (rfg at ncd.com)

        * dwarfout.c, dwarf.h, README.DWARF: Replacement files that bring
    the Dwarf implementation up to that defined by draft 5 of the
    UI/PLSIG Dwarf specification.

Wed Oct 30 10:50:07 1991  Michael Meissner  (meissner at osf.org)

    * objc-parse.y (yylex): Cast short types to int before shifting, to
    avoid bogus warnings from the MIPS C compiler.

    * cccp.c (fancy_abort): Make this global again, so that
    -Dabort=fancy_abort will not cause a link error, because obstack.c
    contains a reference to abort.

Wed Oct 30 07:38:08 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * SYSCALLS.c (abort): Undefine first.

    * xm-m88k.h (HOST_WORDS_BIG_ENDIAN): Define it.
    * out-m88k.c (output_and): Choose "clr" last.

Tue Oct 29 22:49:47 1991  Michael Meissner  (meissner at osf.org)

    * tm-mips.h (num_refs): New global array.
    (mips_count_memory_refs): New function decl.

    * out-mips.h (num_refs): New global array to count number of 1, 2,
    or 3 instruction data references with -mstats.
    (mips_count_memory_refs): New function decl to determine whether a
    data memory reference uses 1, 2, or 3 instructions.
    (mips_move_1word, mips_move_2words): Call mips_count_memory_refs
    as appropriate.
    (function_epilogue): Print number of 1, 2, and 3 instruction
    memory references if -mstats.

    * mips.md (movsi_ulw, movsi_usw): Call mips_count_memory_refs if
    needed.

Tue Oct 29 05:14:27 1991  Ken Raeburn  (raeburn at cygnus.com)

    * cp-parse.y (template_def): Don't pass bogus declspecs to
    start_decl.

    * cp-pt.c (tsubst, case FUNCTION_DECL): Build new argument list
    from method template, instead of retaining the old one.

Tue Oct 29 00:44:51 1991  Ken Raeburn  (raeburn at cygnus.com)

    * cp-class.c (finish_struct): Skip type fields if they are
    template names bound to their expansions.

    * cp-decl.c (binding_levels_sane): Define only if PARANOID; use a
    macro returning 1 otherwise.  Check class_binding_level stack for
    consistency also.
    (pushdecl): Verify that bindings pushed at global scope are in
    permanent obstack storage.
    (start_decl): While processing_template_decl, don't also need to
    verify that the decl uses the template parameters.  For method
    templates, construct proper method type for result.  TREE_EXTERNAL
    flag for methods should be cleared if DECL_EXTERNAL is clear.
    (grokdeclarator, case CALL_EXPR): Intercept destructor templates,
    which have a different internal form, and convert them to a form
    that can be recognized.

    * cp-decl2.c (grokclassfn): Include length of class name when
    creating assembler name for destructor; otherwise ambiguities
    result.

    * cp-lex.c (identifier_typedecl_value): New fn; scans bindings of
    identifier for a given type decl; falls back to name of type.
    * cp-tree.h (IDENTIFIER_TYPEDECL_VALUE): Call it.

    * cp-method.c (fndecl_as_string): Print constructor_name of type
    for constructor and destructor, not type name.

    * cp-parse.y (template_def): Don't output warning about missing
    type and storage class, since this gets printed for destructor
    templates.
    (notype_declarator): Accept '~' PTYPENAME.
    (scoped_typename): Want a PTYPENAME, not TYPENAME.  Build a
    SCOPE_REF node instead of calling resolve_scope_to_name.

    * cp-pt.c (instantiate_member_templates): New fn.  Instantiates
    members associated with template for a given template class.
    * cp-method.c (template_instantiate_once): Call it.

    * cp-pt.c (end_template_decl): Catch destructor templates that
    are being passed through without being converted to TEMPLATE_DECL
    nodes; convert them now.  Copy argument list for function template
    into permanent storage.
    (lookup_template_class): Supply IDENTIFIER_TEMPLATE data for new
    anonymous type name.
    (tsubst, case FUNCTION_DECL): Improve method lookup code.
    (tsubst): Use hash table and build_cplus_* functions for building
    new nodes when possible, so equality tests are easier.  Extend
    FUNCTION_TYPE case to handle METHOD_TYPE as well.
    (instantiate_template): Don't do anything for error_mark_node.
    (do_pending_expansions): Keep expansions not used in queue to check
    again later.

    * cp-tree.def: Fix up some comments relating to PT-related types.

    * tree.c (init_tree_codes): Now void, in agreement with decl
    elsewhere.

Mon Oct 28 22:07:44 1991  Jeffrey A Law  (law at b117.super.org)

    * output.h (current_function_uses_pic_offset_table): Declare here
    so that out-*.c can see it.

    * tm-m68k.h (FINALIZE_PIC): New macro.
    (PIC_OFFSET_TABLE_REGNUM): New macro.  Defines which address
    register is used to hold the offset table for PIC.
    (CONDITIONAL_REGISTER_USAGE): Make PIC_OFFSET_TABLE_REGNUM be
    fixed when generating position independent code.

    * out-m68k.c (finalize_pic): New function.
    (output_function_prologue): If generating position independent
    code output assembler text to load the pic_offset_table register.

Mon Oct 28 10:02:36 1991  Michael Meissner  (meissner at osf.org)

    * toplev.c (main): If -G is used, set g_switch_set to true, and set
    g_switch_value to be the integer value of it's argument, for use in
    the MIPS port to determine whether a static or global item goes into
    the normal data area, or into the small data area.

    * out-mips.c (g_switch_set, g_switch_value): Delete these global
    variables, since toplev.c now defines them.

    * tm-mips.h (EXTRA_INT_OPTIONS): Delete macro which is no longer
    used in internal OSF patches to provide -G xx support.
    (ASM_SPEC, CC1_SPEC, LINK_SPEC): Remove -G32, since the new -G
    patches take care of it now.

    * tm-decrose.h (ASM_SPEC, LINK_SPEC): Remove -G32.

    * tm-decstatn.h (ASM_SPEC, LINK_SPEC): Remove -G32.

    * tm-iris.h (ASM_SPEC, LINK_SPEC): Remove -G32.

    * tm-mips-bsd.h (LINK_SPEC): Remove -G32.

    * tm-mips-news.h (ASM_SPEC, LINK_SPEC): Remove -G32.

    * tm-mips-sysv.h (LINK_SPEC): Remove -G32.

Mon Oct 28 07:11:28 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * combine.c (try_combine): Don't delete unused SETs if they have
    side-effects.

    * Makefile.in, t-i386sco: Had both LIMIT_H and LIMITS_H; latter
    is correct.

    * combine.c (subst): New argument `unique_copy'; if non-zero ensure
    each copy of `from' replaced gets a unique copy of `to'.
    Pass arg to recursive callers.
    (try_combine): Pass new arg to subst.

    * Makefile.in (LANGUAGES): Use `objective-c' instead of `class-c'
    to avoid confusion.

    * gcc.c (xmalloc, xrealloc): Really make non-static.

Mon Oct 28 00:21:56 1991  Michael Meissner  (meissner at osf.org)

    * tm-mips.h (CC1_SPEC): Convert -gline into -g1.

Sun Oct 27 17:15:48 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * reload1.c (spill_hard_reg): Rework code that relies on the fact that
    reg_class_superclasses[i][0] == i, since it isn't true!

Sun Oct 27 06:15:24 1991  Ron Guilmette  (rfg at ncd.com)

    * configure: Always remove any files before we write them in case
    the old copy was read-only.

    * Makefile.in (manext): Now just extension without the period.
    (mandir): Default to include manext.
    (install-man): Adjust to new definition of manext.
    (uninstall): Remove protoize.1 and unprotoize.1 from mandir.

    * genemit.c (gen_exp): Write integer using %u instead of %d to
    avoid warnings from some compilers when most negative int is written.

    * cccp.c: Make variables not used outside this file static.
    (main, line_to_error, xmalloc, xrealloc, xcalloc): Add missing return
    statements (in unreachable paths).
    (xmalloc, xrealloc, xcalloc, savestring): Make SIZE arg unsigned.

Sun Oct 27 06:14:45 1991  Jeffrey A Law  (law at b115.super.org)

    * tm-m68k.h (SELECT_RTX_SECTION): New macro.  Used to force
    symbolic objects in the constant pool into the read-write data
    section when generating position independent code.

    * recog.c (general_operand, immediate_operand, nonmemory_operand):
    Use LEGITIMATE_PIC_OPERAND_P to reject constants which are not
    valid when generating position independent code.

    * reload.c (find_reloads): Do not win in 's', 'i', or 'g' cases
    if the constant does not satisfy LEGITIMATE_PIC_OPERAND_P.

    * tm-m68k.h (LEGITIMATE_PIC_OPERAND_P): New macro.

    * out-m68k.c (symbolic_operand): New function. Copied from
    tm-sparc.h.

    * gcc.texinfo: Document LEGITIMATE_PIC_OPERAND_P.

Sat Oct 26 07:51:40 1991  Michael Meissner  (meissner at osf.org)

    * mips.md (movsi_usw): Remove invalid '&' constraint on a memory
    address.

Sat Oct 26 07:16:15 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * flow.c (find_basic_blocks): Build label_value_list as list of
    CODE_LABELs, not LABEL_REFs.

    * fold-const.c (optimize_bit_field_compare): Call fold on result
    of build1 call that converts integer to proper mode.

    * rtl.h (unsigned_condition, signed_condition): Add definition;
    functions were previously added to jump.c.
    * combine.c (simplify_comparison): Use unsigned_condition to simplify
    last change.

Sat Oct 26 06:48:59 1991  Jeffrey A Law    (law at b115.super.org)

    * tm-sun2.h, tm-sun3.h (ASM_SPEC): Pass "-k" to the assembler if
    -fpic or -fPIC.

Fri Oct 25 20:43:54 1991  Michael Meissner  (meissner at osf.org)

    * tm-mips.h (CC1_SPEC): Remove special rules for -g0, -g1, etc., now
    that GCC supports these directly.

    * configure (dec-mips-osf): DECstation running OSF/rose uses
    t-decrose, not t-mips.

    * x-decrose (COFF_CC, COFF_CFLAGS, WARNINGS): Delete.
    (libdir, bindir, mandir): Put GCC 2 in the /usr/ccs/gcc tree.

    * x-mips (comment): Delete a comment about cross compilers that is
    no longer true.

    * t-decrose (coff-obstack.o): Delete rule that is no longer used.

Fri Oct 25 18:46:51 1991  Mark Eichin  (eichin at cygnus.com)

    * cp-dem.c (cp-demangle): added support for templates, static
    data, and the new (correct) mangling for destructors.

Fri Oct 25 16:18:18 1991  Mark Eichin  (eichin at tweedledumber.cygnus.com)

        * cp-decl2.c: (grokclassfn): destructor names *should* contain
        the length; otherwise, we can't tell the difference between a
        destructor for a class whose name begins with 't' and a destructor
        for an instance of a template class.

Fri Oct 25 02:15:12 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * SYSCALLS.c, protoize.c: Changes from rfg.
    waiting for real changelog entries from rfg.

    * gcc.c (xmalloc, xrealloc): No longer static.

Thu Oct 24 19:21:04 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * fold-const.c (optimize_bit_field_compare):
    Use build1 rather than convert, to avoid warnings.

    * final.c (output_source_line): Fix if-scope for DBX fmt.

Thu Oct 24 13:29:34 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * gcc.c gen*.c: Don't make fancy_abort static.

Thu Oct 24 12:07:23 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * combine.c (simplify_comparison): When narrowing a comparison
    and removing ANDs, make it unsigned.

Thu Oct 24 08:02:04 1991  Ken Raeburn  (raeburn at cygnus.com)

    * cp-decl.c (binding_levels_sane): New function, tests that stack
    of binding levels is consistent.  Argument provides extra
    identification for call site, in case compiler optimizes too well.
    If PARANOID is not set, does nothing.
    (push_binding_level, pop_binding_level): Now functions, for easier
    debugging.  Inlined under GNU C if not PARANOID.
    (PUSH_BINDING_LEVEL, POP_BINDING_LEVEL): Invoke functions.
    (push_to_top_level): Use type-shadowed slots to unwind
    IDENTIFIER_TYPE_VALUE back to top level.
    (start_decl): When processing a template decl, shouldn't need to
    check uses_template_parms.  For methods, modify arg list to include
    `this'.  Don't set context of template.  Use perm_tree_cons when
    building members list for class template.
    (grokdeclarator): Check "friend" flag before calling
    globalize_nested_type.  Build a method type for a function that has
    a context.

    * cp-pt.c (end_template_decl): If template has non-null context,
    chain it off of the containing class, rather than using pushdecl.
    (instantiate_class_template): Instantiate all the member templates
    hanging off the class template.  Also, simplify some code in the
    case where setup_parse is 0.
    (tsubst): Check for several common values that won't be modified by
    substitutions.
    (tsubst, case FUNCTION_DECL): Don't return type passed if it has a
    non-null context that might need fixing.  Process that context while
    building up the new decl node; use it to notify build_decl_overload
    that we've got a method rather than a function.
    (tsubst, case METHOD_TYPE): Handle like FUNCTION_TYPE; enhance that
    case to handle TYPE_METHOD_BASETYPE when set.
    (unify): Increment value pointed to by nsubsts, not the pointer
    itself.
    (do_pending_expansions): Method context is in DECL_CONTEXT, not
    DECL_CLASS_CONTEXT.

    * cp-lex.c (do_identifier): Don't try looking up fields in base
    classes of UNINSTANTIATED_P_TYPE.

    * cp-parse.y (primary): Call require_complete_type only for
    CALL_EXPR nodes of types other than void.
    (template_type): Don't call IDENTIFIER_TYPE_VALUE on
    error_mark_node.

    * cp-ptree.c (print_lang_decl): For UNINSTANTIATED_P_TYPE, show
    template as well as parameters.

    * cp-tree.h (DECL_TEMPLATE_*, UPT_*): New accessor macros for
    TEMPLATE_DECL and UNINSTANTIATED_P_TYPE nodes.  All (most?) uses
    except for node creation changed to use these.
    * cp-tree.def: Updated comments for these node types.

    * cp-pt.c (uses_template_parms): Handle ADDR_EXPR.
    (end_template_decl): For function with non-null context, pop class
    binding level.

Thu Oct 24 06:57:28 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * a29k.md, romp.md, rs6000.md (movdi, movdf, movti): Handle case of
    reg-reg copy with overlapping registers correctly.

    * out-rs6000.c (ccr_bit, case NE): Fix typo in bit number.
    (output_epilog): Must restore stack using backchain if alloca called.

    * romp.md, rs6000.md (extendxxyy2, zero_extendxxyy2): Use DEFINE_EXPAND
    to force operand to register; DEFINE_INSN allows memory (better cse).

    * rs6000.md (ffssi2): New patterns.
    (maskir): Add patterns to use maskir instructions.

    * tm-a29kunix.h (TARGET_DEFAULT, CPP_SPEC): Default to 29050.

    * tm-rs6000.h (LINK_SPEC): Add -bnodelcsect.
    (HARD_REGNO_MODE_OK): Delete kludge that didn't allow DImode in reg 31
    and TImode in 29-31; the bug was fixed elsewhere.

Wed Oct 23 17:48:43 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * combine.c (try_combine): If an insn doesn't match, check for case
    where first SET's result isn't used; previously only checked second.

    * combine.c (try_combine): When we substitute into a COMPARE, check
    SELECT_CC_MODE to see if we should try to change the mode of the
    COMPARE and its result.

Wed Oct 23 16:38:26 1991  Torbjorn Granlund  (tege at hal.gnu.ai.mit.edu)

    * gnulib2.c (__ashrdi3): Compute sign extension shift count from
    machine word size instead of using 31.

Wed Oct 23 14:25:04 1991  Michael Meissner  (meissner at osf.org)

    * tm-mips.h (PREFERRED_DEBUGGING_TYPE): Unless otherwise defined,
    set to SDB_DEBUG.

    * tm-decrose.h (PREFERRED_DEBUGGING_TYPE): Define to DBX_DEBUG.

    * out-mips.c (override_options): Don't override debugger choice now
    that PREFERRED_DEBUGGING_TYPE is provided.

Wed Oct 23 07:25:32 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * sdbout.c (sdbout_symbol/FUNCTION_DECL, sdbout_toplevel_data,
    sdbout_end_epilogue): Use DECL_ASSEMBLER_NAME to avoid link-time
    multiple definitions.

Tue Oct 22 15:06:31 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * reload1.c (reload): For now, we must always have a frame pointer
    if a function calls alloca and EXIT_IGNORE_STACK is non-zero.

    * cse.c (insert_regs): Don't make new quantity for the register in
    a SUBREG.
    (merge_equiv_classes): Don't invalidate the register inside a SUBREG.
    (canon_hash, case SUBREG): Remove code to treat SUBREGs like REGs.

Tue Oct 22 10:25:29 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * tm-m88kdgux.h (PREFERRED_DEBUGGING_TYPE): Use it.
    * tm-m88k.h (OVERRIDE_OPTIONS): Don't override write_symbols.

    * out-m88k.c (m88k_output_{prologue,epilogue}): Renamed.

Tue Oct 22 00:51:48 1991  Richard Stallman  ([e-mail])

    * c++: New shell script.

    * gcc.c (default_compilers): Treat .ii files as cpp'd C++.

    * varasm.c (make_function_rtl): Don't alter DECL_ASSEMBLER_NAME.

    * toplev.c (main): Use PREFERRED_DEBUGGING_TYPE if support
    more than one format.

Mon Oct 21 23:08:02 1991  Richard Stallman  ([e-mail])

    * c-decl.c (grokdeclarator): Fix error message for long float.

Mon Oct 21 16:55:31 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * optabs.c (add_equal_note): New function.
    (expand_binop): Delete some obsolete, turned-off code.
    Use GET_RTX_CLASS to see if operator is commutative.
    Call add_equal_note if we make a multi-insn sequence; if it fails,
    redo the operation without our target.
    In multi-word cases, don't allow TARGET to be the same as an input.
    (expand_unop): Allow operation to fail.
    Call add_equal_note and allow failure, like in expand_binop.
    In multi-word case, don't allow TARGET to be OP0.
    (emit_unop_insn): Use add_equal_note; ignore its failure here.

    * optabs.c (expand_float, expand_fix): In cases when we will jump,
    ensure we call emit_queue before protect_from_queue.
    Eliminate redundant calls to protect_from_queue and force_non_mem.

    * reorg.c (steal_delay_list_from_target): Don't take an insn from
    the fallthrough thread of an annulled branch insn.

Mon Oct 21 16:55:08 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * configure (m88k targets): Complete last change.

Mon Oct 21 16:06:25 1991  Richard Stallman  ([e-mail])

    * integrate.c (copy_rtx_and_substitute): When making copy of frame,
    round size to keep substituted frame pointer aligned.
    (CEIL_ROUND): New macro.

Mon Oct 21 15:16:17 1991  Michael Meissner  (meissner at osf.org)

    * tm-mips.h (GP_REG_OR_PSEUDO_NONSTRICT_P): New macro for
    REG_OK_FOR_{BASE,INDEX}_P in non strict mode.  Fix typos in the
    previous change.
    (GP_REG_OR_PSEUDO_P): Rename to GP_REG_OR_PSEUDO_STRICT_P.
    (REG_OK_FOR_BASE_P): Use GP_REG_OR_PSEUDO_NONSTRICT_P if non strict.
    (REG_OK_FOR_INDEX_P): Use GP_REG_OR_PSEUDO_NONSTRICT_P if non strict.
    (GO_IF_LEGITIMATE_ADDRESS): Indicate if strict checking is being
    used if -mdebugb tracing.

Mon Oct 21 15:08:15 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * Makefile.in (*.o): Add insn-codes.h to all lists using expr.h.
    (dwarfout.o): Add dwarf.h, reload.h, output.h, and insn-config.h.

    * c-tree.h (TYPE_ACTUAL_ARG_TYPES): New macro for list of actual
    types.
    * c-decl.c (store_parm_decls): Compute TYPE_ACTUAL_ARG_TYPES if a
    prototype is not present.  Delete old method.
    (duplicate_decls): Provide better diagnostics if a prototype
    follows a function definition.

    * m88k.md (gen_divsi3): Delete REG_EQUAL workaround.
    * t-m88k{,luna,sysv4}: Target makefile portion (from Mike Stump).
    * x-m88k{,dgux,luna,sysv4}: Corresponding deletions.
    * {tm,t,x}-m88ksysv4: Renamed from m88ksvr4.  Deleted xm-m88ksvr4.
    * {tm,xm}-m88ksysv3: Renamed from v88r32.
    * configure: Corresponding changes.

    * tm-m88k.h (ASM_OUTPUT_{CONSTRUCTOR,DESTRUCTOR}): Output to
    .ctors/.dtors sections.
    (TARGET_SWITCHES): Add -m88000, -m88100, and -m88110.  Replace
    DG/UX MXDB options with SUBTARGET_SWITCHES macro.
    * tm-m88kdgux.h (SUBTARGET_SWITCHES, ASM_SPEC, ASM_FIRST_LINE):
    Put MXDB options here changing -mdwarf to -mstandard.

Sun Oct 20 06:39:54 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * combine.c (simplify_comparison, case PLUS): Only do simplification
    for equality comparison due to overflow problems.

    * gen*.c: Remove "void *" and uses of size_t added by recent change.

    * reload.c (find_reloads): If "&" given without any registers,
    turn off earlyclobber, in addition to giving error.

    * Makefile.in (STAGE_GCC): Deleted.
    (STAGESTUFF): Add gcc (from STAGE_GCC) and gcc-cross.

Sun Oct 20 04:37:21 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-decl.c (grokfndecl): Use DECL_NAME, not DECLARATOR at end of
    function, since DECL_NAME may be different if it's an operator name.

    * cp-cvt.c (convert_pointer_to): Test if PARENT is TREE_VEC
    before testing IS_AGGR_TYPE.

Sun Oct 20 00:40:47 1991  Richard Stallman  ([e-mail])

    * gcc.c (link_command_spec): -collect converts to -c.

    * toplev.c (main): Support -gstabs and -gcoff.  Fix args to strncmp.

Sat Oct 19 21:51:03 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * reorg.c: Use const_true_rtx instead of const1_rtx.
    (delete_scheduled_jump): Don't delete an insn that sets CC0 if it
    has a side-effect.
    (update_block): Add missing declaration for parameter WHERE.
    (fill_slots_from_thread): Stop search if we find an insn that we
    can't put into the delay slot unless we own the thread.

Sat Oct 19 17:30:23 1991  Michael Meissner  (meissner at osf.org)

    * tm-mips.h (GP_REG_OR_PSEUDO_P): New macro to make sure a reg or
    pseudo reg during reload will eventually be a GP register for use as
    a base or index register.  This fixes a bug where a FP register
    could be used as a base or index register in some cases after
    convert from floating point to integer was done.
    (REGNO_OK_FOR_BASE_P, REGNO_OK_FOR_INDEX_P): Use GP_REG_OR_PSEUDO_P.
    (REG_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P): In the non strict version,
    don't allow hard FP registers ever.

Sat Oct 19 11:59:55 1991  Richard Stallman  ([e-mail])

    * tm-sun3.h, tm-sparc.h (WORD_SWITCH_TAKES_ARG):
    Check for Tdata as well as target.

    * c-decl.c (grokdeclarator): Don't warn for array of incomplete elt.

    * expr.c (expand_expr): For INDIRECT_REF, don't set unchanging bit.
    * c-typeck.c (build_indirect_ref): Do set TREE_UNCHANGING if nec.

    * reload.c (find_reloads): Warning or error for misuse of `&'.
    * toplev.c (warning_for_asm): New function.

    * t-i386sco: New file.
    * x-i386sco: Add -Di286 to CC, OLDCC.
    (LIMIT_H): Moved to t-i386sco.

Sat Oct 19 09:08:11 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * gcc.c: Add missing extern declarations deleted by last change.
    (xrealloc, xmalloc): Don't declare as void *; non-ANSI compilers
    can't handle it.

Sat Oct 19 08:26:13 1991  Ron Guilmette  (rfg at ncd.com)

    * tree.h: Fix spelling error in comment.

    * tree.def, cp-parse.y: Change comments that refer to LET_STMT nodes to
    refer to BLOCK nodes.

    * gcc.c, gen*.c: Declare as static objects that aren't referenced
    outside the file they are in.
    (xrealloc, xmalloc): Functions return char *, not int.
    (main): Add missing returns (in unreachable code) to avoid warnings
    when compiled with -Wreturn-type.
    * gcc.c (pexecute): Likewise.
    * genattrtab.c (operate_exp): Likewise.

Fri Oct 18 16:58:12 1991  Eric Youngdale (youngdale at v6550c.nrl.navy.mil)

    * make-cc1.com: Finish changeover from cplus-* to cp-*.

Fri Oct 18 16:57:37 1991  Ron Guilmette  (rfg at ncd.com)

    * tm-svr4.h: Delete lines duplicated due to transmission problems.

Fri Oct 18 16:55:53 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * jump.c (unsigned_condition, signed_condition): New functions.

    * configure (vax): Set tm_file to tm-vax.h so "configure vax-dec-bsd"
    works.

    * combine.c (subst, case PLUS, MINUS): Remove some simplifications
    from here.
    * cse.c (simplify_binary_operation, case PLUS, MINUS): Put these
    simplifications here.
    Strip off CONST when looking for some simplifications.
    Add code to simplify (a - (a - b)).

    * combine.c (expand_compound_operation): Correctly handle case where
    we have a ZERO_EXTRACT that extends beyond the bounds of the object.

    * global-alloc.c (mark_elimination): No longer have FORBIDDEN_REGS as
    argument.
    * reload1.c (reload): Don't pass FORBIDDEN_REGS to mark_elimination.

    * cse.c (simplify_{unary,binary,relational}_operation):  Complete
    change that removes warnings from floating-point traps when constant
    folding (some cases had been omitted).

Fri Oct 18 16:41:29 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * stmt.c (expand_anon_union_decl): When creating new mem, copy the
    RTX_UNCHANGING_P and MEM_IN_STRUCT_P bits from the old one.

    * sparc.md: Add new scc addx/subx patterns.

Fri Oct 18 09:10:43 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cp-parse.y (stmts): Fix parsing rules to match C++ semantics
    better (and hence give the compiler better error recovery).

Thu Oct 17 19:31:15 1991  Ken Raeburn  (raeburn at cygnus.com)

        * cp-pt.c (tsubst): For NEGATE_EXPR, call build1, not build.
        Handle NOP_EXPR likewise.
        (unify, case TEMPLATE_CONST_PARM): Copy value to permanent obstack.

        * cp-method.c (PARM_CAN_BE_ARRAY_TYPE): If not already defined,
        define it to be 1.
        (build_overload_name): Test to see if it's nonzero, rather than
        whether it's defined; this permits compilation options to disable
        it, but leave it enabled by default.  Add one to the array size,
        since the value retrieved appears to be the maximum index, not the
        true array size.

Thu Oct 17 19:15:37 1991  Mark Eichin  (eichin at tweedledumber.cygnus.com)

        * cp-pt.c (instantiate_class_template):  has an argument to
        indicate whether to setup for parsing or not. (All existing cases
        did a feed input, but if we are trying to set up intermediate nodes
        while waiting for the parser to return to a template_instantiate
        site we need to suppress the parsing part of it, which will get
        redone later.)
        (tsubst): under case UNINSTANTIATED_P_TYPE, actually instantiate any
        class templates that are needed for function return values, and set
        them up as pending templates to be run later.

        * cp-parse.y (primary): since build_x_function_call doesn't
        require a complete type any more in certain cases, we instantiate
        any pending templates and then require_complete_type on the
        remainder.

        * cp-typeck.c (build_function_call_real): added an argument to
        optionally skip the require_complete_type... implicit template
        instantiation has to be postponed, so we won't get a complete type
        until the parser can grab it.

        * cp-call.c (build_overload_call_real): added an argument do
        allow choice of build_function_call_maybe or build_function_call
        based on whether we thought we would require a complete type out of
        build_function_call.

Wed Oct 16 09:06:57 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * c-decl.c (store_parm_decls): Fix and disable recording the arg
    type list for the function indicating the number of arguments.
    * c-typeck.c (self_promoting_args_p): Allow the arg type to be null.

    * expmed.c (store_bit_field, extract_bit_field): Add checks for
    MEM_IN_STRUCT_P if the structure reference is a MEM.

Tue Oct 15 18:37:50 1991  Ken Raeburn  (raeburn at cygnus.com)

        * cp-call.c (build_overload_call): If template match fails, still
        set function field of candidate structure, and set bad_arg field to
        new magic number -4 to indicate failed type unificiation.

        * cp-class.c (add_method): Call make_function_rtl only if not
        processing a template declaration.

        * cp-tree.def: New node type, UNINSTANTIATED_P_TYPE, for
        parameterized types that haven't had parameters filled in yet.
        Looks like a type node.

        * cp-decl.c (struct binding_level): New flag indicating any name
        should be accepted when looked up at this level.  This is a kludge
        to try to deal with methods of parameterized types.
        (declare_uninstantiated_type_level): Set it.
        (uninstantiated_type_level_p): Return it.
        * cp-class.c (pushclass): If the "class" type is
        UNINSTANTIATED_P_TYPE, flag it in the new binding level.

        * cp-decl.c (push_overloaded_decl): New argument to indicate
        whether the decl should be forgotten when the current level is
        exited.  Callers changed.
        (push_overloaded_decl_top_level): Ditto.
        (dont_forget_overload): Deleted.
        (push_overloaded_decl_1): New fn; like push_overloaded_decl, but
        never forgets.  Intended only for use by auto_function macro.
        (auto_function): Use it.

        * cp-decl.c (print_binding_level): Print type-shadowed field at
        each level.  Skip fields with no values.

        * cp-decl.c (adjust_type_value): Use SET_IDENTIFIER_TYPE_VALUE,
        not set_identifier_type_value.

        * cp-decl.c (pushdecl): Undo Oct 4 back-out of previous change.
        Set type value of name of passed decl, instead of name of type in
        passed decl.
        (pushdecl_top_level): Search type-shadowed fields of outer binding
        levels, munging outermost one if found to cause it to "restore" the
        new global value.

        * cp-decl.c (push_overloaded_decl): Don't punt second or later
        templates of a given name.

        * cp-decl.c (start_decl): Template-handling code moved up, to
        cope better with variable declarations.  Don't check for incomplete
        type or constructor requirements when processing template.

        * cp-decl2.c (build_push_scope): If passed error mark node, just
        return it.
        (constructor_name): Handle UNINSTANTIATED_P_TYPE.

        * cp-lex.c (identifier_type): Don't return PTYPENAME for function
        template name.

        * cp-method.c (report_type_mismatch): New magic bad-arg value -4
        indicates type unification failure.
        (build_overload_name, case UNINSTANTIATED_P_TYPE): Handle like other
        template-related types that shouldn't get visibility outside the
        compiler.

        * cp-parse.y (template_type): Use IDENTIFIER_TYPE_VALUE from
        name, if expansion doesn't happen.
        (tmpl.1, tmpl.2): Now type <ttype>.  Value is null or return value
        from instantiate_class_template.
        (template_instantiation): Always put copy of decl in global scope.
        Use pushdecl_top_level instead of setting IDENTIFIER_GLOBAL_VALUE
        slot.
        (LC): If type has been or is being defined, push a new type with the
        same name, to avoid conflict.
        (try_for_typename): New type <itype>.  Value is non-zero iff type to
        be pushed uses no template parms and isn't error_mark_node.
        (scoped_id): Return error_mark_node for template parameter uses, and
        leave error_mark_node alone.  Only pop class if try_for_typename
        value is non-zero.
        (scoped_typename): Ditto.

        * cp-pt.c (end_template_decl): If template decl/class head arg is
        null, punt.  For non-type templates that didn't come in as template
        decls, clear public flag.  Such cases shouldn't arise any more; just
        put in abort call for now until we're sure.  Comment out code for
        forcibly removing temporary values of template type parms; Michael
        broke the code and fixed the original problem.  Handle error case
        where decl to be pushed might be null.
        (coerce_template_parms): Handle arg list as TREE_VEC as well as
        TREE_LIST.  If arg list uses template parms, return
        UNINSTANTIATED_P_TYPE node.
        (uses_template_parms, case UNINSTANTIATED_P_TYPE): Return 1.
        (instantiate_class_template): Now returns tree -- error_mark_node or
        NULL_TREE or class type; callers and decls changed.  Assign
        TYPE_NAME field when building new RECORD_TYPE and TYPE_DECL nodes.
        Don't need to do extra poplevel any more.
        (tsubst): Handle UNINSTANTIATED_P_TYPE, MINUS_EXPR, PLUS_EXPR,
        NEGATE_EXPR.
        (undo_template_name_overload): Don't need to explicitly clear type
        field any more.
        (overload_template_name): Push a TYPE_DECL, instead of explicitly
        setting type value field.
        (end_template_instantiation): Don't need to pop a level any more.
        (reinit_parse_for_template): Throw away saved block for null or
        error template node.
        (type_unification): Handle variadic functions, and functions with
        default values for arguments.
        (unify): Handle TREE_VEC and UNINSTANTIATED_P_TYPE.

        * cp-ptree.c (print_lang_type): Handle UNINSTANTIATED_P_TYPE.

        * cp-tree.h (push_overload_decl): Declare here, not in
        cp-decl.c.
        (TEMPLATE_TYPE_* macros): Delete unused (and now incorrect)
        versions.

Mon Oct 14 14:30:32 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * integrate.c (expand_inline_function): Fix typo from last edit,
    where TYPE_MODE was applied to an argument, not the type of an
    argument.

    * cse.c (canon_hash, SUBREG case): Add cast which is needed by some
    compilers.

Mon Oct 14 07:59:50 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * toplev.c (rest_of_compilation): Compute the function's name and
    pass it to assemble_{start,end}_function.
    * varasm.c (assemble_start_function): New parameter.
    (assemble_end_function): New function for ASM_DECLARE_FUNCTION_SIZE.
    * final.c, sdbout.c: Correct comments.
    * tm-svr4.h, tm-sysv4.h (ASM_DECLARE_FUNCTION_SIZE): Add and use a
    NAME parameter.
    * tm-m88k.h (ASM_DECLARE_FUNCTION_SIZE): Override svr4 definition.
    * out-m88k.c (output_prologue): Delete previous method.

    * m88k.md: Use trap_if.
    (divsi3): Store into output operand only once to aviod problems
    with REG_EQUAL note.
    * out-m88k.c (output_call): Accomodate assembler range
    restriction.
    * tm-m88kdgux.h (AS_BUG_IMMEDIATE_LABEL): Specify the restriction.
    (ASM_SPEC): Pass -KV3 to the assembler in some cases.
    * tm-m88k.h (CONDITIONAL_REGISTER_USAGE): Mark the addressing base
    register global.

Sat Oct 12 00:30:23 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * Makefile.in (.SUFFIXES): Rule added.

    * dbxout.c (dbxout_block): Handle debug_info_level.
    * sdbout.c (sdbout_begin_block): Likewise.
    * toplev.c (compile_file): Likewise, when calling init_emit_once.
    * emit-rtl.c (init_emit_once): Cosmetic change.
    * Makefile.in (sdbout.o): Include flags.h.

    * configure: Default srcdir from dir in which configure is found.

    * i860.md (floatsidf2): Rewrite to be independant of host machine.
    (divdf3, divsf3): New patterns.

    * tm-i860.h (ASM_DECLARE_FUNCTION_NAME): Macro deleted.
    (ASM_OUTPUT_FUNCTION_PREFIX): Macro added.

    * stmt.c (pushcase, pushcase_range, expand_end_case):
    Don't give "unreachable code" warning for a USE.

    * tm-i386.h (HARD_REGNO_MODE_OK): Fp regs reject TFmode.

Fri Oct 11 16:43:37 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * cse.c (find_comparison_args): Reject VOIDmode to avoid invalid
    shift.

Fri Oct 11 14:30:31 1991  Richard Stallman  ([e-mail])

    * c-typeck.c (function_types_compatible_p):
    NULL as arg type matches self-promoting type.
    (self_promoting_type_p): New function.
    (common_type): NULL for arg in one fcn type means use arg from other.
    * c-decl.c (store_parm_decls): Record arg type list for the fn,
    just to indicate how many args there are.

    * i860.md, out-i860.c, tm-i860.h: Merge many changes by rfg.
    * tm-i860bsd.h, xm-i860.h: Likewise.
    * tm-i860v3.h, tm-i860v4.h: New files.
    * xm-i860v3.h, xm-i860v4.h: New files.
    * tm-i860v3g.h: Renamed from tm-i860g.h.
    * configure (i860-sysv3*): Renamed from i860-sysv*.  New filenames.
    (i860-sysv4*): New alternative.

    * print-rtl.c: New file, split from rtl.c.
    * Makefile.in (print-rtl.o): New target.
    (OBJS): Add that target.

    * toplev.c (DEFAULT_GDB_EXTENSIONS): Provide default definition.
    (main): Use that for -g with dbx format.
    Don't support -G.
    * gcc.c (default_compilers): Get rid of -G.

Fri Oct 11 14:30:43 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * stmt.c (expand_anon_union_decl): Correctly handle anonymous
    unions, whether in memory or registers.

    These were written by Michael Tiemann.
    The following changes net a 16% speedup compiling some
    machine-generated CAD synthesis code.
    * c-decl.c (field_decl_cmp): New function, use as comparison
    function for qsort.
    (finish_struct): If there are more than 15 fields, allocate a
    LANG_TYPE for the FIELD_DECLs, and sort them according to
    `field_decl_cmp'.
    * c-tree.h (lang_type): Define a LANG_TYPE for RECORD_TYPEs.
    * c-typeck.c (build_component_ref): If LANG_TYPE set, then use
    binary search to find the field, otherwise use linear search as
    before.

    * tree.h: Declare savealloc.
    * c-common.c: Delete now unnecessary cast of savealloc result.

Fri Oct 11 10:06:09 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * cse.c (simplify_binary_operation): Fix typo in last change.

    * cp-*, gcc.texinfo, make-cc1.com, tree.c, undocumented: Change
    cplus- to cp-.  Rename cplus-parse.y to cp-parse.y.

Fri Oct 11 07:48:40 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * recog.c (find_single_use_1): Ignore appearances of DEST in
    contexts where it is being set, not referenced.
    (find_single_use): Use dead_or_set_p instead of looking for REG_DEAD
    notes.

Fri Oct 11 07:29:33 1991  Ron Guilmette  (rfg at ncd.com)

    * c-parse.y, cp-lex.c, objc-parse.y (check_newline):    Use `pedwarn'
    instead of `error' when we see an #ident if -pedantic.
    * cccp.c (do_assert, do_unassert, check_assertion, do_sccs): Warn
    if -pedantic.

Thu Oct 10 18:30:28 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * gcc.c (default_compilers): Correctly handle new debugging
    options, pass all -g* and -G* options.

    * Makefile.in, c-decl.c, cp-decl.c, final.c, flags.h, gcc.1,
    gcc.c, print-tree.c, toplev.c, tree.def, tree.h: Delete support
    for obsolete GDB_DEBUG format, -gg option, symout.c, etc.
    * gdbfiles.h, symseg.h, symout.c: Delete obsolete files.

Thu Oct 10 17:56:16 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * expr.c (convert_move): When widening FROM to multi-word, ensure that
    we only reference each piece of TO once so that emit_no_conflict_block
    can be safely used.

    * toplev.c (float_signal): Re-enable the signal after we catch it.

    * cse.c (simplify_binary_operation): Add missing fp error handler
    setup in DFmode case.

    * combine.c (subst, case XOR): Fix typo in checking for
    STORE_FLAG_VALUE equal to just the sign bit.
    (simplify_comparison): Fix typo in computing maximum signed number in
    a mode; also, use GET_MODE_MASK rather than trying to compute it.

Thu Oct 10 17:52:44 1991  Richard Stallman  ([e-mail])

     * c-decl.c (init_decl_processing): Turn off `alloca' for -ansi.
    (c_decode_option): Handle -fbuiltin, -fno-builtin.

Thu Oct 10 17:42:03 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * caller-save.c (emit_mult_restore): Initialize MAYBE_TEMPREG.

    * function.c (assign_parms): Set MEM_IN_STRUCT_P when creating a
    MEM for a aggregate passed by reference.
    * expr.c (expand_expr, INDIRECT_REF case): Set MEM_IN_STRUCT_P
    when dereferencing an aggregate.

    * sched.c (sched_note_set): Add missing parens.

    * sparc.md: Delete unnecessary clobbers from all SCC patterns.

    * integrate.c (expand_inline_function): Correct handling of arguments
    passed by invisible reference.

    * cse.c (canon_hash): Compute hash code for SUBREG same as we do
    for REG.  Otherwise, SUBREG hash codes can change when qty_const
    changes, which results in duplicate SUBREG entries, which can
    cause a crash.

Wed Oct  9 15:55:42 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * cccp.c (main): Update MAX_INCLUDE_LEN if GCC_EXEC_PREFIX gets into
    the act.

    * xm-a29k.h: Change copyright message back to GPL version 2.
    * xm-a29k-ultra.h: Use GPL version 2 copyright.

    * reload1.c (reload): Put array size in cast, to prevent compiler
    warning.

    * dwarfout.c (type_attribute): Check for ERROR_MARK nodes.

Wed Oct  9 13:59:22 1991  Richard Stallman  ([e-mail])

    * toplev.c (float_signal): Reenable handler.

    * configure: Comment out various options not yet updated.

    * cp-*.c, cp-*.h: Renamed from cplus-*.[ch].
    * Makefile.in: Renaming here also.

    * x-*: Renamed from make-*.
    * Makefile.in (tmake_file, xmake_file): New vars.
    (Makefile): Depend on them.
    * configure: Replace host_make_var_file with host_xmake_file.
    Handle tmake_file also, for target machine.
    Form file names from x- and t-.
    Rearrange use of temporary files during editing of Makefile.

    * t-mips: Most of x-mips moved here.
    * t-decrose: Likewise from x-decrose.

    * xm-a29k-ult.h: Renamed from xm-a29k-ultra.h.

    * Makefile. in (install-common): Don't handle `collect' specially.
    It should be in EXTRA_PASSES if it is needed.

    * cse.c (simplify_binary_expression): Use float handler for DF like SF.
    Don't warn about traps; leave them for run time.

    * tm-hp9k320.h (SIZE_TYPE): New definition.
    Note: this affects tm-3b1.h by inheritance.  Not sure that's right.

Wed Oct  9 12:15:40 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * rtl.def (TRAP_IF): Make TRAP into a conditional trap.
    * rtl.h (TRAP_CONDITION): Define.
    * rtlanal.c (reg_referenced_p may_trap_p): Deal with TRAP_IF properly.
    (volatile_refs_p side_effects_p): Not currently true for TRAP_IF.

Wed Oct  9 03:55:21 1991  Richard Stallman  ([e-mail])

    * make-mips (BISONFLAGS): Assignment deleted.

    * real.h (REAL_VALUE_MINUS_ZERO): New macro.
    * fold-const.c (target_minus_zero): New function.
    * tm-sun2os4.h (ASM_OUTPUT_FLOAT, ASM_OUTPUT_FLOAT_OPERAND):
    (ASM_OUTPUT_DOUBLE, ASM_OUTPUT_DOUBLE_OPERAND):
    Use REAL_VALUE_ISINF, REAL_VALUE_MINUS_ZERO.

Tue Oct  8 17:56:13 1991  Richard Stallman  ([e-mail])

    * c-decl.c (duplicate_decls): If redeclaring builtin as static,
    replace the old decl.

    * tm-seq386.h (HARD_REGNO_MODE_OK): Copy usual def into override def.

    * tm-news.h (CPP_PREDEFINES): Get rid of invalid conditionals.
    * tm-tower.h: Likewise.

    * tm-gmicro.h (MODES_TIEABLE_P): Fix typo.

    * ns32k.md (rotrsi3): Fix typo `NEGATE' for `NEG'.

    * c-typeck.c (mark_addressable): Handle CONSTRUCTOR.
    * expr.c (expand_expr): Handle addressable contructors.

Tue Oct  8 14:42:56 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * expmed.c (lshift_value): Ensure the shift amount is in range.

Mon Oct  7 20:45:35 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * integrate.c (function_cannot_inline_p, save_for_inline_copying,
    save_for_inline_nocopy, expand_inline_function,
    output_inline_function): Use GET_RTX_CLASS.

    * listing: Remove RCS Author and Log fields.

    * cse.c (exp_equiv_p): Fix typos in comments/spacing.
    * emit-rtl.c: Likewise.
    * expmed.c (store_fixed_bit_field): Likewise.
    * integrate.c (subst_constants): Likewise.

    * longlong.h: Again fix same typo previously fixed Sept 5.

Mon Oct  7 17:28:23 1991  Michael Meissner  (meissner at osf.org)

    * xm-mips.h (MIPS): Define MIPS to 1 instead of nothing, so
    mips-tfile will compile once again.

Mon Oct  7 17:10:32 1991  Richard Stallman  ([e-mail])

    * cccp.c (main): Pedantically warn if no newline at end of file.
    (finclude): Likewise.

    * c-decl.c (grokdeclarator): funcdef_flag overrides parm level.

Sun Oct  6 16:37:31 1991  Richard Stallman  ([e-mail])

    * sparc.md (peephole for lo-sum and load df): Use output_move_double.

    * tree.h (DECL_BUILT_IN_NONANSI): New flag.
    * c-decl.c (init_decl_processing): Set flag for `alloca'.

    * c-decl.c (duplicate_decls): Rearranged to reduce conditionals.
    Allow redefining built-in functions as static even if new decl
    is not a function.  Also allow if built-in is not ANSI.

    * out-sparc.c (output_move_double): Fix typo in test for using ldd.

Sun Oct  6 12:56:19 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * expr.c (expand_expr, case COND_EXPR): Rename var added in last
    change; some C compilers don't like "optab optab;".

Sun Oct  6 09:26:55 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cplus-method.c (build_overload_name): When walking up contexts, if
    CONTEXT becomes a _TYPE node, point it at the _DECL node for the
    type.

    * cplus-decl2.c (grokclassfn): Paremeter COMPLAIN deleted.  No
    longer performs sanity check by itself.
    (check_classfn): New function.  Performs sanity check that
    `grokclassfn' used to do.  All callers changed.

    * tree.h (struct tree_decl): Add new ignored_flag; delete
    lang_flag_8 to make room.
    (DECL_IGNORED_P): New macro.
    (DECL_LANG_FLAG_8): Deleted.
    * cplus-dbxout.c (dbxout_type): Use this macro instead of
    ANON_AGGRNAME_P.
    * cplus-decl.c (pushtag): Set DECL_IGNORED_P when appropriate.
    * cplus-decl.c (duplicate_decls): Ensure DECL_IGNORED_P remains
    consistent.

    * cplus-decl.c (grokfndecl): If we have an overloaded operator, set
    the DECL_NAME to something that dbxout.c can handle.
    * cplus-method.c (hack_operator): Change this function to handle
    this new behavior.
    * cplus-init.c (do_friend): Ditto.

Sat Oct  5 14:32:01 1991  Richard Stallman  ([e-mail])

    * expmed.c (expand_mult): Avoid fetching memory more than once.

    * tm-ultrix.h (DOLLARS_IN_IDENTIFIERS): Define as 1.

    * expr.c (expand_builtin): Clarify error message for BUILT_IN_NEXT_ARG.

Sat Oct  5 08:42:02 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cplus-decl.c (clear_anon_tags): New function.
    (make_anon_name): Moved here from cplus-method.c.
    * cplus-lex.c (check_for_missing_semicolon, note_list_got_semicolon):
    call `clear_anon_tags' when done.
    * cplus-dbxout.c (dbxout_type): No longer test ANON_AGGRNAME_P for
    TYPE_NAMEs that are IDENTIFIER_NODES.  They no longer appear in GNU
    C++.  Also, we can rely on the fact that there are no anon aggrnames
    in tag lists.

    * cplus-decl.c (xref_tag): Set TREE_VEC_LENGTH (BINFOS) to the
    number of basetypes that were actually accepted.

    * cplus-parse.y (datadef, fndef): Accept `extern "C"' as a storage
    class specifier.

    * cplus-init.c (build_new): Handle allocating types whose TRUE_TYPEs
    start off as ARRAY_TYPEs.

    * cplus-typeck.c (build_unary_op): We don't need to wrap
    CURRENT_CLASS_DECL in a NON_LVALUE_EXPR when taking the address of
    C_C_D.

    * cplus-init.c (resolve_offset_ref): Fix error message for
    non-static member references.  Also, don't crash if EXP is not a
    TREE_LIST or an OFFSET_REF.

    * cplus-expr.c (cplus_expand_expr): Handle OFFSET_REFs.

    * cplus-typeck.c (build_binary_op_nodefault): If PEDANTIC, don't
    permit comparisons between pointers and integers.

    * cplus-decl2.c (explicit_warn_return_type): New variable.
    * cplus-decl.c (grokdeclarator): Test `explicit_warn_return_type'
    instead of `warn_return_type'.

    * cplus-decl.c (grokdeclarator): Fix criterium for deciding whether
    to turn a FUNCTION_TYPE declaration into a METHOD_TYPE declaration
    based on FRIENDP and STATICP.
    (implicitly_declare): If PEDANTIC, treat this as an error.

    * cplus-cvt.c (convert_to_integer): Make anachronisms errors if
    PEDANTIC is nonzero.

    * cplus-typeck.c (convert_for_assignment): If PEDANTIC, don't let
    void * convert to non-void* types.  Similarly, don't let const*
    pointers be assigned to non-const* pointers.  Similarly for signed
    vs. unsigned pointers.
    (warn_for_assignment): Add new parameter SEVERE.

    * cplus-decl.c (push_overloaded_decl): If PEDANTIC, give error when
    functions overload variables.

    * cplus-decl2.c (grokfield): If PEDANTIC, don't let fields have
    initializers (conditionalized on PEDANTIC).
    * cplus-class.c (finish_struct): Set TYPE_GETS_{ASSIGNMENT,INIT_REF}
    for UNION_TYPE.

Sat Oct  5 06:52:29 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * expr.c (expand_expr, case COND_EXPR): Case for X ? A + 1 : A can
    also handle MINUS_EXPR and BIT_*_EXPR.

    * rtl.h (copy_rtx_if_shared): Declare here.
    * emit-rtl.c (unshare_copies): Delete unused variable.
    (copy_rtx_if_shared): No longer static.
    (reset_used_flags): New function.
    * combine.c (copy_substitutions): Deleted.
    (try_combine): When making new insns, ensure that we do not have any
    improper sharing by using copy_rtx_if_shared; no longer call
    copy_substitutions.

    * combine.c (try_combine): If an insn that is a PARALLEL of two sets
    isn't recognized and the result of the second SET is unused, ignore it.

Fri Oct  4 15:25:33 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cplus-decl.c (set_identifier_type_value): New function.  Change
    all callers of macro SET_IDENTIFIER_TYPE_VALUE to call this function
    instead.

    * cplus-decl.c (pushdecl): Back out Sep 26 change.  ??? This problem
    really has to be solved in a more global fashion.
    (struct binding_level): New field `type_shadowed' for typenames that
    get shadowed.  All pop* routines that restore from shadowed lists
    now restore IDENTIFIER_TYPE_VALUE from the `type_shadowed' field.

Fri Oct  4 14:47:52 1991  Michael Meissner  (meissner at osf.org)

    * sdbout.c (include of syms.h): Don't include <syms.h> on MIPS
    systems, since the system does not provide the file, rather use
    "gsyms.h".  This is a problem for Silicon Graphics, and the System V
    varient on RISC-OS, both of which define the USG macro.  Patch from
    [e-mail].

Fri Oct  4 13:37:11 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * stor-layout.c (get_best_mode): Add a volatilep parameter
    indicating that the smallest mode is desired.
    * expmed.c, fold-const.c: All callers changed.
    (optimize_bit_field_compare): Initialize {l,r}volatilep now that
    they are used.

Thu Oct  3 22:08:45 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * objc-actions.h (CLASS_SUPER_NAME): Change type.basetypes to
    type.binfo so that it will compile.

Thu Oct  3 06:46:38 1991  Niklas Hallqvist  (niklas at appli.se)

        * cplus-tree.h (PARANOID): Don't define if already defined.
    ({SET,CLEAR}_CLASSTYPE_MARKED*): New macros needed to get through
    C compilers who don't allow comma expressions as lvalues.
    ({SET,CLEAR}_BINFO_*): Ditto.

    * cplus-init.c: Use new SET/CLEAR macros.

    * cplus-search.c: Ditto.

    * cplus-decl.c: Ditto.
    (lookup_tag): Accept *_DECLs as nodes in the context chain.
    (lookup_nested_type): Accept FUNCTION_DECLs not only as head of
    the context chain, but at any place in it.

Thu Oct  3 06:42:08 1991  Michael Meissner  (meissner at osf.org)

    * c-decl.c (c_decode_option): Add new switch -Wparentheses and
    -Wnoparentheses to control whether GCC warns about adding extra ()'s
    around a subexpression.  Make -Wparentheses default behavior.
    (warn_parentheses): New global variable.

    * c-tree.h (warn_parentheses): New variable.

    * c-typeck.c (parser_build_binary_op): Check for warn_parentheses
    before emitting warnings about adding ().

Wed Oct  2 20:51:04 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * gcc.texinfo: Correct documentation for CONSTANT_ADDRESS_P,
    CONSTANT_P, and HIGH.

Wed Oct  2 15:08:32 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cplus-class.c (modify_vtable_entries): Fix error in computing
    offsets to use for virtual functions from virtual baseclasses.
    * cplus-except.c (lookup_exception_type): Change local variable name
    `binfo' to `link'.
    * cplus-lex.c (yylex): Cast shorts to (long) when building longlong.

Wed Oct  2 11:32:35 1991  Michael Meissner  (meissner at osf.org)

    * tm-encrose.h (new file): New configuration file for Encore
    Multimax running OSF/1, and using the OSF/rose object formats.

Wed Oct  2 08:33:08 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * tree.h (TYPE_UID): Add this field to TYPE nodes.
    * tree.c (make_node): Initialize it.
    * dwarfout.c (TYPE_NAME_FMT): Use TYPE_UID rather than TREE_UID.
    (equate_type_number_to_die_number): Discard type qualifiers.
    (output_typedef_die): Don't use equate_type_number_to_die_number.

Wed Oct  2 08:04:57 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * cse.c (cse_process_notes): Fix typo; missing arg in return.

Wed Oct  2 06:56:13 1991  Ron Guilmette  (rfg at ncd.com)

        * Makefile.in (ENQUIRE_CFLAGS): Remove duplicate use of GCC_CFLAGS.

    * Makefile.in (cplus-tab.c): Adjust number of expected conflicts.

    * Makefile.in (mostlyclean): Remove collect and collect2.

    * tm-svr4.h: Add new file; prototype for System V, Release 4.

Tue Oct  1 23:00:13 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * reload.c (find_reloads_address): Fix error in previous change;
    clean up REG case so it is easier to read.

Tue Oct  1 14:05:46 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cplus-decl.c (finish_{decl,function}): Use new function
    `note_debug_info_needed' instead of setting CLASSTYPE_ASM_WRITTEN.
    * cplus-search.c (note_debug_info_needed): New function.
    Recursively set CLASSTYPE_ASM_WRITTEN in a hierarchy when called.

    * cplus-class.c (finish_struct): If DECL_NAME of the BASE_FNDECL is
    NULL_TREE, we know we're looking at a virtual destructor.

Tue Oct  1 09:47:25 1991  Michael Meissner  (meissner at osf.org)

    * tm-mips.h (OPTIMIZATION_OPTIONS): Enable scheduling insns now for
    -O2 optimization.

    * Makefile.in (STAGESTUFF): Add $(EXTRA_PASSES), to allow moving any
    extra passes into the stage[1234] directories, and to remove the
    extra stuff when doing make clean.

Tue Oct  1 08:35:11 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * dwarfout.c (FUNC_END_LABEL_FMT, TYPE_NAME_FMT): Undo this change.

    * c-decl.c (grokdeclarator): When making an unsigned bitfield
    type from a typedef, preserve the size.  A typedef of an
    explicitly signed typedef is explicitly signed.

Mon Sep 30 22:51:07 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * out-sparc.c: Fix misc typos and indentation problems.
    Delete all unnecessary extern declarations.
    Include "recog.h".
    Consistently use Pmode instead of SImode for addresses.
    Use macros defined in tm-sparc.h instead of magic numbers.
    (reg_or_0_operand): Accept CONST_DOUBLE zero.
    (symbolic_operand): Accept CONST_DOUBLE.
    (move_operand): Accept arith_double_operand ('H'), SMALL_INT
    ('I'), and sethi operands ('K').
    (move_pic_label): Renamed from move_reg_or_immed_operand.  If
    flag_pic is true, accept a LABEL_REF, otherwise fail.
    (arith_double_operand): Accept SMALL_INT ('I') CONST_INTs.  Correct
    computation of when a CONST_DOUBLE is a SMALL_INT ('H').
    (eligible_for_epilogue_delay): Accept arith_double_operands.
    (emit_move_sequence): Handle arith_double_operands.  Handle
    loading of labels for pic, need to add a clobber of %o7 (reg 15).
    (find_addr_reg): Don't return FRAME_POINTER_REGNUM.  It is not
    safe to play around with the frame pointer.
    (hard_regno_mode_ok): Change from short to int array.
    (output_pic_sequence, output_pic_sequence_2, fp_zero_hook): Delete
    long obsolete routines.
    (print_operand): Delete support for obsolete 'S' and 'H' cases.
    (output_double_int): New function.  Outputs assembler code for 64
    bit (DImode) values.

    * sparc.md: Fix misc typos and indentation problems.
    Delete unnecessary (set_attr "type" "binary") lines.
    Consistently use %a1 in sethi and ori output templates.
    Consistently use Pmode not SImode for addresses.
    Consistently use the same predicate for both operand 1 and
    operand 2 in commutative patterns.  Don't use same predicate in
    non-commutative patterns.
    Consistently use \; to separate multiple instuctions.
    Change "r%" to "%r".
    (define_attr length): Handle arith_double_operand predicate.
    (movsi): Combine two movsi patterns into one, except for loading
    of pic labels.    New pattern to load pic labels, which clobbers %o7.
    (movhi): Combine two movhi patterns into one.
    (movqi): Combine two movqi patterns into one.
    (movdi): Discourage the Q/f constraint option so that DImode
    variables won't end up in floating pointer registers.
    (floatsisf2, floatsidf2): Delete patterns accepting a const_int
    operand.  These should never be matched.  In remaining patterns,
    accept nonimmediate_operand instead of general_operand.
    (adddi3, subdi3, anddi3, iordi3, xordi3, xnordi3, one_cmpldi2):
    Accept arith_double_operand predicates and "HI" constraints.
    (last peephole): Reg 0 should be CCmode not SImode.

    * tm-sparc.h: Fix misc typos.
    (WORDS_BIG_ENDIAN): Indicate why it must be true.
    (hard_regno_mode_ok): Change from short to int array.
    (CONST_DOUBLE_OK_FOR_LETTER_P): Add new 'H' constraint, for DImode
    constants that can fit in an immediate field.
    (CONSTANT_ADDRESS_P): Accept any CONSTANT_P, including
    CONST_DOUBLEs.
    (LEGITIMATE_CONSTANT_P): Accept CONST_DOUBLEs if match 'H'
    constaint.
    (RTX_COSTS): Define cost for FLOAT to be more expensive than
    CONST_DOUBLEs, so that cse will prefer the latter.
    (ASM_OUTPUT_DOUBLE_INT): New macro to output DImode constants.

    * sched.c (schedule_block): When calculating register lifetime
    info, handle CLOBBERs and USEs.  The code that adds REG_DEAD notes
    already handles them.
    (update_n_sets): New function, subroutine of update_links.
    Given a SET or CLOBBER, updates reg_n_sets as appropriate,
    depending on whether this is in a deleted or a new insn.
    (update_links): Call update_n_sets to subtract info for split
    insn, and add info for insns resulting from the split.

Mon Sep 30 19:06:50 1991  Michael Meissner  (meissner at osf.org)

    * ecoff-cmp (TMP): Fix typo, from [e-mail].

    * mips-tfile.c (toplevel): Don't declare _flsbuf under Silicon
    Graphics, from [e-mail].

Mon Sep 30 15:54:02 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * cse.c (cse_process_notes): New function.
    (cse_basic_block): Call it for each insn.
    (count_reg_usage): Count usage in a REG_EQUAL note.
    (delete_dead_from_cse): Call count_reg_usage with insn, not pattern.
    * loop.c (scan_loop): Replace a register used in a REG_EQUAL note.
    (find_single_use_in_loop): Two uses in single insn doesn't disqualify.
    Allow argument to be REG_NOTES.
    (count_loop_regs_set): Call find_single_us_in_loop on REG_NOTES.

Mon Sep 30 15:47:03 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cplus-call.c (ideal_candidate): Return 0 if the top two candidates
    have identical rankings but incompatible types.

    * cplus-lex.c (cons_up_default_function): Set DECL_NAME (FN) to
    NULL_TREE in order to mark the function as being generated by the
    compiler.
    * cplus-init.c (emit_base_init): Change to use this interface.
    * cplus-decl.c (duplicate_decls, redeclaration_error_message): Ditto.
    (store_parm_decls): Ditto.
    * cplus-decl2.c (grokclassfn): Ditto.
    * cplus-dbxout.c (dbxout_type_methods): Ditto.
    * cplus-class.c (finish_struct_methods): Ditto.
    * cplus-method.c (fndecl_as_string): Ditto.
    * cplus-search.c (lookup_fnfields_1): Ditto.
    (compute_visibility): Ditto.
    * cplus-typekc.c (build_function_call): Ditto.
    * cplus-tree.c (lang_printable_name): Ditto.  Also use
    DECL_ASSEMBLER_NAME instead of DECL_NAME in DESTRUCTOR_NAME_P test.
    * calls.c (expand_call): Change also needed here.

Mon Sep 30 15:31:53 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * dbxout.c: Include <param.h> before config.h, because it may define
    MIN and MAX.

    * fold-const.c (const_binop): Delete incorrect short cut for
    (0 - const).

    * expr.c (do_tablejump): Pass GET_MODE (index) instead of Pmode to
    emit_cmp_insn, because the latter fails when integers and pointers
    are different sizes.

    * combine.c (subst): When checking to see if associating helps
    simplify rtl, make sure we pass the constant operand if any as the
    second one if this is a commutative operation.

    * cccp.c (rescan): Save obufp_before_macroname as an offset from
    the start of op->buf instead of as a pointer into the middle, in
    case op->buf gets realloced.

Mon Sep 30 14:07:20 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * dwarfout.c (FUNC_END_LABEL_FMT, TYPE_NAME_FMT): TREE_UID is
    unique only if the node is TREE_PERMANENT.  Augment the spelling
    of labels using TREE_UID with the TREE_UID of the current function.

    Changes from Ron Guilmette:
    * dwarfout.c (output_symbol): Deal with formal parameters with an
    incomplete tagged type.
    (output_bound_representation):  Fix for arrays with dynamic bounds.

    Changes from Jim Wilson:
    * dwarfout.c: Define strrchr to rindex for non USG systems.
    Use DECL_BIT_FIELD_TYPE not DECL_BIT_FIELD to test for bitfields.

Sun Sep 29 16:29:08 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * reload.h (indirect_symref_ok): New variable.
    * reload.c (find_reloads_address): Remove shadowing decls of `tem'.
    Only allow certain forms addresses as indirect; check
    indirect_symref_ok to see if (mem (symbol_ref ...)) is a valid
    address; if not that form or simple, not valid indirect address.
    * reload1.c (indirect_symref_ok): Define here.
    (init_reload): Initialize vars used to determine which addrs are valid.
    (reload): Don't do it here.
    Update comment to relect what `alter_regs' currently does.

    * tree.h (struct tree_decl): Add new from_inline_flag; delete
    lang_flag_9 to make room.
    (DECL_FROM_INLINE): New macro.
    (DECL_LANG_FLAG_9): Deleted.
    * c-decl.c, cplus-decl.c (pushdecl): Use DECL_FROM_INLINE instead of
    TREE_INLINE where appropriate.
    * cplus-decl.c (finish_decl): Likewise.
    * integrate.c (integrate_parm_decls, integrate_decl_tree): Set
    DECL_FROM_INLINE instead of TREE_INLINE.
    * print-tree (print_node): Print DECL_FROM_INLINE.
    Delete reference to DECL_LANG_FLAG_9.

Sun Sep 29 12:49:47 1991  Michael Tiemann  (tiemann at cygnus.com)

    * c-decl.c, c-typeck.c, cplus-decl.c, toplev.c:
    Set/test TREE_ADDRESSABLE of DECL_ASSEMBLER_NAME, not DECL_NAME for
    function decls.

    * cplus-class.c: Export `current_lang_stack' and
    `current_lang_base'.
    cplus-decl.c (push_overloaded_decl): Allow redeclaration of a
    function that was previously given a linkage specification at
    top-level (i.e., not in an explicit linkage arena).

    * cplus-typeck.c (convert_arguments): Strip the `&' from an
    overloaded function passed as an argument into an ellipses.

Sat Sep 28 15:37:26 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cplus-typeck.c (build_x_binary_op): We have to special-case the
    failure of MEMBER_REF to be overloaded as an operator.

Sat Sep 28 10:44:36 1991  Richard Kenner  ([e-mail])

    * reload1.c (reload): If we find at some point that we need
    caller-saves, disable elimination of the frame pointer.

    * reload.c (subst_reloads): Re-enable code to prevent making
    a SUBREG inside a SUBREG.

Sat Sep 28 00:40:51 1991  Ken Raeburn  ([e-mail])

    * cplus-pt.c (do_pending_expansions): Adjust "DECIDE" macro to avoid
    compiler warning from Sun cc.

Fri Sep 27 17:30:39 1991  Per Bothner  (bothner at cygnus.com)

    * configure[.in]: Move most of the target_vendor switch
    entries (e.g. next, sun, sony) from the m88k architecture to m68k,
    where they belong.

Fri Sep 27 16:21:04 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cplus-search.c (recursive_bounded_basetype_p): Add new parameter
    UPDATE_CHAIN so that function now behaves as comment prescribes.
    * cplus-search.c (compute_visibility): Fix error in conversion of
    data structures from list-based to binfo-based nodes.

Fri Sep 27 07:05:57 1991  Richard Kenner  ([e-mail])

    * c-decl.c (pushdecl): Fix typo: TREE_EXTERNAL misspelled.

Thu Sep 26 17:36:14 1991  Michael Meissner  (meissner at osf.org)

    * tm-mips.h (ASM_FINAL_SPEC): Handle gcc -c -o foo bar.c.

    * tm-decrose.h (ASM_FINAL_SPEC): Handle gcc -c -o foo bar.c.

    * make-decrose (cplus-lex rule): Remove hacks in compiling
    cplus-lex, since bug in 1.39 inlining was fixed to allow us to
    compile the module normally.

Thu Sep 26 11:53:49 1991  Ken Raeburn  ([e-mail])

    * cplus-tree.h (TEMPLATE_TYPE_*): Use slower versions that uses tree
    structures more properly, so accessor macros don't lose.

    * cplus-pt.c (end_template_parm_list): For type parameters, make the
    new decl be the name of the "type".

    * Makefile.in (cplus-tab.{c,h}): There are now 30 s/r conflicts.

    * cplus-class.c (resolves_to_fixed_type_p, case CALL_EXPR): Deleted
    duplicate code.

    * cplus-decl.c (poplevel): Deleted duplicate code saving info on
    accesses to external via non-global decls.
    (pushdecl): For typedef of unnamed type, don't store new name for
    type if not at global binding scope.  Also, don't need to test for
    TYPE_DECL when previous conditional guarantees it.
    (start_decl): Clear TREE_PUBLIC flag of templates.
    (finish_decl): For variables in static storage with constructors,
    force it into data section (out of common storage) only if the name
    is externally visible.

    * cplus-gc.c (type_needs_gc_entry): If the type has no base types,
    don't check to see whether they need gc entries.

    * cplus-parse.y (yyprint): Handle SCSPEC and AGGR.

    * cplus-pt.c (end_template_decl): Clear IDENTIFIER_TYPE_VALUE slots
    for type parameters, then call adjust_type_value.
    (instantiate_class_template): Do nothing if classname is
    error_mark_node.
    (mangle_class_name_for_template): Make buf a static array, since
    its address gets returned.

    * reload1.c (reload): Provide array size in cast, to avoid compiler
    warnings.

    From Niklas Hallqvist:
    * cplus-tree.h (struct template_info): Added new field "aggr", which
    will be class_type_node or struct_type_node for class or struct
    templates.
    * cplus-parse.y (template_def): Pass current_aggr to
    end_template_decl.
    (template_instantiation): Use aggr field.
    * cplus-pt.c (end_template_decl): Argument IS_CLASS is now a tree,
    used to set the aggr field.
    (overload_template_name): Use aggr field.

    Suggested by John Carr:
    * cplus-dbxout.c (dbxout_tags): Don't omit argument to
    dbxout_finish_symbol.
    (dbxout_continue): Omit declaration and definition if
    DBX_CONTIN_LENGTH is not greater than zero, like its calls.
    (print_int_cst_octal): Ditto, based on defined(WINNING_GDB).
    * cplus-decl.c (GNU_end_scope): Never used; deleted.
    (pushdecl): Vars nglobals, len are used only in code under "#if 0";
    comment out decls as well.
    * cplus-gc.c (expand_gc_prologue_and_epilogue): Variable "head" was
    unused; deleted.
    * cplus-init.c (expand_aggr_vbase_init_1): All args are type tree.
    (expand_vec_init): Don't return without a value when "initializer
    ends prematurely".
    * cplus-method.c (build_overload_nested_name): Pass all necessary
    arguments in recursive call.
    * cplus-search.c (pop_type_level): Cast argument to pop_stack_level
    to proper type.
    (push_memoized_context): Ditto for push_type_level.
    (my_copy_node): Unused; deleted.
    (lookup_fnfields): Add missing arg to get_binfo.
    (lookup_field): Ditto.

    From Niklas Hallqvist:
    * cplus-decl.c (push_to_top_level): Handle case of function with
    unnamed parms.
    (pop_from_top_level): Ditto.

Thu Sep 26 07:46:08 1991  Richard Kenner  ([e-mail])

    * loop.c (scan_loop): Don't eliminate register that is set by
    consecutive insns.

Wed Sep 25 18:53:52 1991  Richard Stallman  ([e-mail])

    * c-decl.c (pushdecl): Suppress warnings about mismatch of
    extern decl when it comes from inlining a function.

    * emit-rtl.c (set_new_first_and_last_label_number): New function.
    (max_label_num): Use last_label_num if valid.
    * integrate.c (output_inline_function): Call set_new_...

Wed Sep 25 18:37:36 1991  Richard Kenner  ([e-mail])

    * flow.c (find_auto_inc): Set BLOCK_NUM of new insns emitted while
    making an auto-inc.

    * Makefile.in (getopt*.o): Each file depends on its .c file and on
    the compiler executable files.

Wed Sep 25 18:18:46 1991  Richard Stallman  ([e-mail])

    * toplev.c (debug_info_level): New variable.
    * flags.h (debug_info_level, enum debug_info_level): New declarations.
    * toplev.c (main): Rewrite handling of -g* and -G* options.
    Now -G indicates use of GDB extensions.  -g0 removed.

Tue Sep 24 03:20:07 1991  Richard Stallman  ([e-mail])

    * alloca.c: Test __STDC__, not X3J11.
    Do nothing if alloca is defined as a macro.

Tue Sep 24 09:15:17 1991  Richard Kenner  ([e-mail])

    * global-alloc.c (eliminable_regset): New variable.
    (global_alloc): Compute it and use to turn off conflicts.
    Refine computation of no_global_alloc_regs when ELIMINABLE_REGS is
    defined.
    (mark_elimination): Don't do anything with allocnos and don't do
    any allocation.

    * reload1.c (eliminate_regs_in_insn): Try to re-recognize insn if
    we replaced a (set X (plus Y Z)).

Tue Sep 24 06:34:04 1991  Michael Tiemann  (tiemann at mole.gnu.ai.mit.edu)

    * cplus-tree.c (virtual_member): Change TREE_VALUE accessor macro to
    BINFO_TYPE.
    * tree.h (BINFO_TYPE): New name for BINFO_VALUE.
    * All cplus-* files: Changed to reflect new name.

Mon Sep 23 12:56:11 1991  Michael Meissner  (meissner at osf.org)

    * tm-mips.h (ASM_SPEC): Fix typo, and close {}'s properly.

Mon Sep 23 10:30:51 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cplus-tree.c (propagate_assoc_offsets): Keep relative offsets of
    child_child correct when copying children.

    * cplus-class.c Use `BINFO_VALUE' instead of `TREE_VALUE' when
    accessing the type value of a binfo node.
    * cplus-decl.c (finish_function): Ditto.
    * cplus-init.c (build_vbase_delete): Ditto.

Mon Sep 23 06:11:56 1991  Richard Kenner  ([e-mail])

    * flow.c (reg_n_refs): Use int, not short.  Short can overflow
    if we have very deep loop nesting.
    (allocate_for_life_analysis): Allocate reg_n_refs as int.
    * regs.h (reg_n_refs): Now int.
    * sched.c: Delete duplicate definitions of objects defined in regs.h.

    * combine.c (try_combine): Correctly check for independent insns
    in a PARALLEL.

    * combine.c (distribute_note, case REG_DEAD): If we discover a register
    is never used, see if we can delete the insn that set it.

Sun Sep 22 19:24:52 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cplus-type2.c (build_functional_cast): Don't forget a valid
    function call if we found one (and nothing more).

Sun Sep 22 07:48:18 1991  Richard Kenner  ([e-mail])

    * rtlanal.c (rtx_varies_p, case REG): Correct typo; sense of comparison
    was backwards.

    * global-alloc.c (mark_elimination): Don't use HARD_REG_SET macros
    to access basic_block_live_at_start.

    * reload1.c (set_label_offsets): New function.
    (offsets_known_at, offsets_at): New variables.
    (reload): Allocate and initialize them.
    Set each label in FORCED_LABELS to be at initial offsets.
    Call set_label_offset on all insns that might involve labels.
    Use GET_RTX_CLASS when appropriate.
    (eliminate_regs, mark_not_eliminable): Ignore sets of FP when looking
    for sets of a "to" register.
    (eliminate_regs_in_insn): No longer suppress elimination for any
    pair not at its initial offet at a jump.

    * combine.c (distribute_links): Correctly find the place to put a
    link.  Handle the case when we eliminate all uses of something that
    we used to use; in that case, we must seach forward.
    No longer need I3, I2, or ALL_ADJACENT arguments.
    (try_combine): Change calls to distribute_links.

    * reload.c (find_equiv_reg): Use GET_RTX_CLASS when appropriate.
    If GOAL is a MEM whose address varies, check whether registers
    that are SET appear in the address rather than assuming they do.
    Ensure REG_INC note is a REG; ignore it if not.

    * rtlanal.c (rtx_varies_p): Rework to use switch statement.
    Check for {frame,arg}_pointer_rtx, not just register number.
    (rtx_addr_can_trap_p): New function.
    (may_trap_p): Use rtx_addr_can_trap_p instead of rtx_varies_p.
    * genattrtab.c: Define {frame,arg,stack}_pointer_rtx for rtlanal.c.

    * combine.c (make_extraction): Make a ZERO_EXTRACT for something with
    pos == 0 if it will be placed in a SET_DEST.

    * expmed.c (expand_shift): Rotate case was missing return statement.
    extzv case had wrong arg to delete_insns_since.
    Remove unneeded calls to delete_insns_since.
    Allow BITS_BIG_ENDIAN to vary at run-time.
    Use variable TEMP in a consistent manner.
    Other miscellaneous changes and cleanups were made.

    * flow.c (max_uid_for_flow): New variable.
    (flow_analysis): Compute maximum uid into max_uid_for_flow; if
    we might have auto-inc, leave some space.
    (find_auto_inc): Verify that the uid's of the insns we make are
    within the allocated space of our per-insn tables.
    Use get_insns instead of gen_sequence.

    * global-alloc.c (retry_global_alloc): When we allocate a register,
    update regno_reg_rtx and mark the allocated register live.
    (mark_elimination): New function.
    * reload1.c (reload): Call mark_elimination for every elimination
    we have been able to do.
    (spill_hard_reg): No longer need to call mark_home_live.

Sun Sep 22 02:07:55 1991  Richard Stallman  ([e-mail])

    * fixincludes: Redirect cmp output to /dev/null; don't close it.

    * varasm.c (assemble_function): Handle ASM_OUTPUT_FUNCTION_PREFIX.

    * final.c (final_scan_insn): No need to goto text section
    for label on jump table.  We're normally in the text section.

Sat Sep 21 14:59:32 1991    (Eric Youngdale at [e-mail])

    * make-cc1.com:  Fix typo in code that decides if bison needs to be
    run.  Also, display a message when building the compiler that informs
    the user about the need to update the assembler.

Sat Sep 21 17:23:07 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * loop.c (struct movable): Add field DEPENDENCIES.
    (scan_loop): Remove mechanism based on REG_TO_FORCE and
    MOVABLE_TO_FORCE.  Replace with use of new field.
    Optionally allocate and initialize reg_single_usage and pass it to
    count_loop_regs_set.
    If an invariant register is used exactly once and this is a loop
    that has a CALL_INSN, try to substitute the definition of the register
    into its use.
    (record_excess_regs): Fix typo in sense of checking in NOT_IN_THIS;
    only check pseudo-regs.
    (libcall_other_reg): Always return the list of registers used,
    no matter how many there are.
    (combine_movable): Only combine two movables if they have the same
    dependencies.
    (move_movables): Can only move something if its dependencies have
    already been moved.
    (find_single_use_in_loop): New function.
    (count_loop_regs_set): Delete code that prevents moving a reg that
    is used as a function address.
    Call find_single_use_in_loop when required.

Sat Sep 21 16:28:34 1991  Richard Stallman  ([e-mail])

    * c-typeck.c (build_unary_op):
    Handle const and volatile lvalues correctly in ADDR_EXPR.

    * output.h (current_function_contains_functions):
    Just declare it, don't define it.

    * cse.c (exp_equiv_p): New arg EQUAL_VALUES.  All callers changed.

Sat Sep 21 12:59:15 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cplus-parse.y (object_star): New rule.
    (POINTSAT_STAR): New token.
    * cplus-lex.c (init_lex): Define entry for MEMBER_REF.
    GNU C++ now overloads `operator->*' according to ARM semantics.  It
    no longer attempts to implement operator->* as two distinct
    operations.

Fri Sep 20 18:08:07 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

        * combine.c (subst): Don't replace a CC0 or a PC in a SET_DEST if
        FROM is the same thing.

    * combine.c (simplify_shift_const): Compute SHIFT_MODE at start of
    loop and use its width, rather than width of RESULT_MODE, when checking
    shift count.

Fri Sep 20 10:55:55 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cplus-pt.c (uses_template_parms): Handle COMPONENT_REF case.

Fri Sep 20 00:27:43 1991  Richard Stallman  ([e-mail])

    * c-typeck.c (build_modify_expr): When assigning to a cast,
    convert value first to the type being cast to.
    (build_unary_expr): Disallow adress of a cast.

    * explow.c (allocate_dynamic_stack_space):
    Handle SETJMP_VIA_SAVE_AREA before rounding to STACK_BOUNDARY.

Thu Sep 19 21:13:17 1991  Richard Stallman  ([e-mail])

    * Makefile.in (dist, gcc-*.tar, gcc-*.tar.Z): New targets.

    * jump.c (jump_optimize): In handling `if (...) x = a; else x = b;',
    don't crash if scan reaches start of insns.

    * Makefile.in (protoize): Link with getopt.o and getopt1.o.
    (unprotoize): Likewise.
    (protoize.o): Depend on getopt.h.  Pass -D options for include dirs.
    (unprotoize.o): Likewise.
    (getopt.o, getopt1.o): New targets.

    * protoize.c: Major rewrite by RFG and RMS.

Thu Sep 19 09:58:25 1991  Tom Wood  (wood at dg-rtp.dg.com)

    Changes from Ron Guilmette:
    * dwarfout.c: Keep track of next_block_number correctly.
    * final.c (final_scan_insn): Don't invoke dwarfout_{begin,end}_block
    for the outermost block of a function.

Thu Sep 19 06:16:34 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * reload.c (copy_replacements): New function.
    * optabs.c (gen_move_insn): Don't call gen_lowpart while reloading
    is in progress; it calls change_address, which wants to make pseudos.

    * combine.c (subst, case SET): Fix typo in last change.

    * combine.c (distribute_notes): When searching back for a place that
    uses a register marked REG_DEAD, check for set and reference separately
    since reg_overlap_mentioned_p doesn't check SET_DEST.

    * combine.c (simplify_shift_const): Correct handling of shift counts
    that become out-of-range.

    * combine.c (expand_field_assignment): Don't allow sharing the RTL
    for the inner object.

    * combine.c (can_combine_p, try_combine, record_value_for_reg): Use
    reg_overlap_mentioned_p instead in reg_mentioned_p in most places.
    (distribute_notes, distribute_links): Likewise.
    (combinable_i3pat): New function, from try_combine.
    (try_combine): Default I1DEST and I1SRC to zero.
    New var I1_FEEDS_I3.
    Delete code to validate I3's pattern from here; call combinable_i3pat
    instead.
    If a substitution returns a (clobber (const_int 0)), stop immediately.
    Don't abort if substitution made new regs; just don't do combine.
    (subst): If IN_DEST, don't replace a matching object.
    Don't look at a REG as a SET_DEST.
    If substitution inside a PARALLEL fails, give up immediately.
    Return (clobber (const_int 0)) even for a SET whose operand fails.
    (subst, case SET): Correctly test for low-order SUBREG.
    Don't use gen_lowpart_for_combine; make SUBREG explicitly since it
    can't handle modes larger than a word.

    * combine.c (subst, case NOT): Code for (not (ashiftx ..)) was too
    general; only handle (not (ashift 1 X)).
    (subst, case NEG): Handle (neg (ashift ...)).
    (merge_outer_ops): Support NEG.
    (simplify_shift_const, case NEG): Handle (ashift (neg ...)).

    * cse.c (simplify_binary_operation, case ROTATE, ROTATERT):
    Rotating all one bits is just all ones.

Thu Sep 19 01:08:14 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * cplus-parse.h, cplus-decl.h: Remove trailing comma after the last
    enum value in enum declarations.

    * cplus-type2.c (digest_init): Set TREE_PURPOSE of union initializer
    when initializing a union by the first field.

    * cplus-method.c (fndecl_as_string): Test whether DECL_CLASS_CONTEXT
    is NULL before using it.
    (dump_aggr_type): New function.  Print aggr type's context when
    appropriate.
    (dump_type{_prefix}): Use `dump_aggr_type' to print ENUMERAL_TYPE,
    UNION_TYPE, and STRUCT_TYPE types.

    * cplus-decl.c (start_decl): Don't use DECL_CLASS_CONTEXT if DECL
    has no DECL_LANG_SPECIFIC.

Wed Sep 18 21:46:32 1991  Michael Meissner  (meissner at osf.org)

    * mips-tfile.c (cur_proc_value): New static to remember the starting
    location of the current function.
    (add_procedure): Save current procedure location.
    (parse_begin, parse_bend): Subtract cur_proc_value from location.
    (parse_bend): Correct error messages.
    The above changes are from [e-mail].

    * tm-mips.h (ASM_FINAL_SPEC): Use -mno-mips-tfile to suppress
    invoking mips-tfile, instead of using -g0.  If -save-temps, preserve
    the original .o file before mips-tfile is called.  Pass the correct
    name for the assembler file.
    (MASK_MIPS_TFILE): New mask for -mmips-tfile, -mno-mips-tfile, set
    to 0, since that switch is handled entirely in ASM_FINAL_SPEC.
    (TARGET_FLAGS): Add -mmips-tfile, -mno-mips-tfile switches.
    (MUST_SAVE_REGISTER): Allow $30 to be saved, even if not being used
    as the frame pointer.

    * tm-decrose.h (ASM_FINAL_SPEC): Use -mno-mips-tfile to suppress
    invoking mips-tfile, instead of using -g0.  If -save-temps, preserve
    the original .o file before mips-tfile is called.  Pass the correct
    name for the assembler file.

Wed Sep 18 18:54:15 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * cplus-*.c: Use DECL_CLASS_CONTEXT to figure out where a (static or
    non-static) member function is declared, rather than trying to
    divine the info from TYPE_METHOD_BASETYPE of the function's type.

Wed Sep 18 15:38:52 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * c-decl.c (grokdeclarator): Error if nested function is extern.

Wed Sep 18 02:41:08 1991  Per Bothner  (bothner at cygnus.com)

    * cplus-typeck.c (convert_arguments):  Don't crash if the
    formal parameter type is unknown (type==NULL) and the
    actual is a function.  Do the default instead.

Tue Sep 17 22:33:30 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * c-typeck.c (check_format):
    No warning if types match except for signedness.

Tue Sep 17 10:56:46 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * cplus-decl.c (pushtag): When creating a TYPE_DECL that's in class
    scope, allocate the space needed for DECL_CLASS_CONTEXT.

    * cplus-search.c (get_abstract_virtuals): If the BASE is not on the
    main spine, look at the virtuals that come from the most derived
    class that has BASE on its main spine.
    * cplus-tree.h (VF_*): New macros for dealing with VFIELDS.

Mon Aug 16 12:09:32 1991    (Eric Youngdale at [e-mail])

    * make.com: Fix typo.

Tue Sep 17 15:13:39 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * c-common.c (shorten_compare): Always compute args with side effects.

    * varasm.c (decode_addr_const): Use SYMBOL_REF unchanged in 1st switch.

    * varasm.c (output_addressed_constants):  Handle a CONSTRUCTOR in
    an ADDR_EXPR correctly.

    * cccp.c (rescan): For unterm string, mention lineno of first newline.

    * fold-const.c (fold): Call optimize_bit_field_compare in constant case
    even if not optimizing.

    * c-decl.c (finish_function): Don't clear DECL_INITIAL if nested.
    (pop_c_function_context): Do it here instead.

Tue Sep 17 11:30:32 1991  Michael Meissner  (meissner at osf.org)

    * collect-osf.c (scan_prog_file): Recognize alternate forms for the
    constructor and destructor names.

    * osf-main.c (_entry): Provide an alternative function (_entry) to
    start up the static constructors/destructors.

Mon Sep 16 05:35:21 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * combine.c (simplify_shift_const): Correct errors involving modes
    to use for shift.

Sun Sep 15 19:13:58 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * reload1.c (reload_as_needed): Remove code that deletes insns that
    create equivalences.
    (reload): Put it here so it is executed even if reload_as_needed
    isn't called.

Sun Sep 15 17:13:09 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * Makefile.in (GNULIB2_CFLAGS): Include GCC_CFLAGS.
    (ENQUIRE_CFLAGS): Likewise (in place of plain CFLAGS).

    * genattrtab.c (main): Don't index by id->insn_code if negative.

    * genrecog.c (write_tree_1): Avoid pos[depth-1] if depth is 0.

Sun Sep 15 15:19:16 1991    (Eric Youngdale at [e-mail])

    * make.com: Modify to allow direct submission to a batch queue.
    Also, add instructions to build GNU C++ as well as GNU CC.

    * cccp.c (hack_vms_include_specification): If [000000] is present in
    (implying a physical device or a rooted logical) try to open it.
    If the open fails, then remove the [000000] (making the name suitable
    for use with a non-rooted logical name) and return that.

Sun Sep 15 15:12:41 1991  Michael Meissner  (meissner at osf.org)

    * make-mips (Makefile): Remove rule building Makefile, since
    Makefile.in now has one.

    * make-decrose (Makefile): Remove rule building Makefile, since
    Makefile.in now has one.

Sun Sep 15 14:12:47 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * Makeflags (SYSCALLS.c.X): Use CPPFLAGS and INCLUDES.

Sun Sep 15 12:03:35 1991  Michael Tiemann  (tiemann at cygnus.com)

    * cplus-decl.c (poplevel): Match change made to c-decl.c on Oct 3,
    1989.

Sun Sep 15 06:52:42 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * caller-save.c (save_call_clobbered_regs): Deaden registers mentioned
    in REG_UNUSED notes.
    (clear_reg_live): Verify that note refers to a REG.
    (choose_hard_reg_mode): Rewrite to not use specific modes and to
    handle the case where separate CCmode registers exist.

Sat Sep 14 13:03:29 1991  Michael Tiemann  (tiemann at cygnus.com)

    * all cplus-* files: Change {ASSOC,assoc} to {BINFO,binfo} where
    appropriate.
    cplus-tree.h, tree.h: Change name of CLASSTYPE_ASSOC to TYPE_BINFO.
    Change names of CLASS_ASSOC_* to TYPE_BINFO_*.
    all cplus-* files: FUNCTION_DECLs that are class methods now have
    their DECL_VCONTEXT stored in the DECL_CONTEXT.
    (lang_decl): The VCONTEXT field is now gone.
    (lang_decl): _DECL nodes in class scope now record the class as a
    context in the DECL_CLASS_CONTEXT field.
    tree.h (TYPE_BINFO): Renamed TYPE_BASETYPES to this.
    dbxout.c (dbxout_type): User of TYPE_BASETYPES changed.
    (BINFO_{VALUE,OFFSET,VTABLE,VIRTUALS,BASETYPE{S}}): New macros
    inherited from GNU C++.
    (DECL_{VINDEX,FCONTEXT}): Ditto.
    (TREE_VIA_{PUBLIC,VIRTUAL}): Ditto.

Sat Sep 14 09:14:26 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * rtlanal.c (reg_set_p): Remove abort for MEM; reg_overlap_mentioned_p
    now handles that case correctly.
    REG is set if it is really a MEM and this is a CALL_INSN.

Sat Sep 14 01:34:39 1991  Richard Stallman  ([e-mail])

    * configure (vax-ultrix*): New alternative.

    * reload1.c (choose_reload_regs): Always ignore cancelled reloads.

    * real.h (atof): Alternate declaration on MIPS.

Thu Sep 12 18:55:06 1991  Torbjorn Granlund  (tege at mole.gnu.ai.mit.edu)

    * optabs.c (expand_binop): Fix carry propagation code for multiple
    words.

    * tm-*.h: Fix systematic typo in comment.

Thu Sep 12 18:23:53 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * gvarargs.h, va-mips.h, va-sparc.h (_va___list): Was __va_list.

Thu Sep 12 12:53:36 1991  Roland H. Pesch  (pesch at cygint.cygnus.com)

    * cpp.texinfo: (titlepage) use @title/@subtitle/@author
    (copyright page) add note re future C manual; add 1991 to copyrights
    (general) prepare for easy @smallbook formatting; clarification on
    strings; less passive; add AMD29K predefined macros; update -d refs,
    add -dM; add examples; add -pedantic-errors; add -MD, -MMD, -H; fix
    minor typos.

Thu Sep 12 07:58:11 1991  Torbjorn Granlund  (tege at mole.gnu.ai.mit.edu)

    * m68k.md (umulsidi3, mulsidi3): New DEFINE_EXPANDs and DEFINE_INSN
    recognizers.

Wed Sep 11 22:11:17 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * a29k.md, romp.md: Update calling sequence to emit_no_conflict_block.

Wed Sep 11 21:06:32 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * fold-const.c (const_binop): Fix last change for ceil and round.

    * gvarargs.h, va-mips.h, va-sparc.h (va_list): Now a macro again.
    (__va_list): This is the typedef.

Wed Sep 11 16:52:20 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * c-typeck.c (build_binary_op_nodefault, RSHIFT_EXPR): Change
    "shift count" warnings changed to errors back to warnings.

    * cse.c (canon_hash): Also do not record global_regs if
    SMALL_REGISTER_CLASSES.  Makes the code match the comment.

    * cexp.y (yylex): Add sprintf call to create error message,
    because yyerror does not call *printf itself.

    * gcc.c (default_compilers): Support new option -traditional-cpp,
    which passes traditional to cpp, but not to cc1.
    * gcc.texinfo: Document it.

    * sched.c (INSN_LUID): New variable.  Give instructions logical
    numbers, which can be used when sorting, to make the scheduling
    algorithm more stable.
    (sched_analyze): Initialize it.
    (rank_for_schedule): Sort on it.
    (schedule_insns): Alloca(te) it and (b)zero it.
    (priority):  New priority algorithm.  Don't include latency of
    current insn, and subtract one from total priority calculated.
    Makes the scheduling algorithm more stable, and doesn't hurt
    performance.

    * sched.c (swap_sort): Must pass &insn to rank_for_schedule, not a
    pointer into the array being sorted.

    * cplus-lex.c (do_identifier): Put function return type on
    preceeding line.

Wed Sep 11 05:51:00 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * cplus-typeck.c (build_binary_op_nodefault): If OP0 or OP1 is a
    zero pointer, canonicalize it to NULL_POINTER_NODE.

    * expr.c (preexpand_calls): Don't preexpand calls inside a
    WITH_CLEANUP_EXPR.  The gestalt of a WITH_CLEANUP_EXPRs must be
    understood at the top level.

    * cplus-tree.c (build_cplus_new): When building cleanup, make
    the call to the cleanup nonvirtual.

Tue Sep 10 20:28:56 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * fold-const.c (const_binop): Shortcut for dividing single-word
    sizes

    * Makefile.in (varasm.o): Depend on insn-codes.h.

Tue Sep 10 19:29:26 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * optabs.c (expand_binop): Try to open-code muldi3 if we have mulsi3
    and mulsidi3.  Idea due to [e-mail].

    * cse.c (fold_rtx, case MEM): Don't call find_best_addr when insn == 0.
    Pass 0 to recursive call that tries to fold the address.

Tue Sep 10 18:16:16 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * m68k.md (fix_trunc*):  Call CC_STATUS_INIT, since these patterns
    do not leave the condition codes in the expected state.

    * tm-ultrix.h (CPP_PREDEFINES): Add __vax.

Tue Sep 10 04:12:53 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * cplus-decl.c (finish_decl): Fix bug where the conversion from
    WITH_CLEANUP_EXPR -> init/cleanup pair was not setting bits of
    CURRENT_BINDING_LEVEL.
    (init_decl_processing): Set FLAGS_THIS_IS_VARIABLE before calling
    `init_exception_processing'.

Mon Sep  9 22:09:27 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * cplus-tree.h (prev_class_type): Delete this bogus definition.

    * cplus-class.c (instantiate_type): Don't complain about no static
    member functions being found until we have been through all the
    baselinks.

    * cplus-dbxout.c (dbxout_type_methods): Don't write symbol
    information about methods that were generated by the compiler.
    (??? Is this really the right thing to do?)

    * cplus-decl2.c (lang_decode_option): Turn on warn_uninitialized if
    -Wall is the argument.

Mon Sep  9 19:05:01 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * gcc.c (default_compilers): For .S files, pass -traditional not
    -ftraditional to cpp.

Mon Sep  9 15:01:58 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * fold-const.c (optimize_bit_field_compare): Distinguish NE from EQ.

    * explow.c (allocate_dynamic_stack_space):
    Handle SETJMP_VIA_SAVE_AREA by allocating extra space.

    * cplus-parse.y (empty_parms): Change inline to __inline.

Mon Sep  9 15:16:24 1991  Torbjorn Granlund  (tege at zevs)

    * longlong.h (m68000 umul_ppmm): Clobber one register less by
    slightly rearranging the code.

Sun Sep  8 16:47:32 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * cccp.c (main, fatal): Delete the deps output file if error.
    (deps_file): New variable.

    * expr.c (convert_move): Update call to emit_no_conflict_block.

    * expmed.c (CEIL): New macro.

    * optabs.c (expand_binop): Don't do add by words for more than 2 words.

    * c-typeck.c (build_modify_expr): Test TREE_READONLY of lhs.

Sun Sep  8 01:17:47 1991  Torbjorn Granlund  (tege at zevs)

    * sparc.md (sgtu, sleu): Test for SUBREG as well as REG.

Sun Sep  8 07:04:33 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * optabs.c (emit_no_conflict_block, emit_libcall_block): Rework to
    accept a list of insns rather than a SEQUENCE.
    (expand_binop, expand_unop, expand_float, expand_fix): Change calls to
    above functions.
    * emit-rtl.c (add_insn): No longer static.
    * calls.c (expand_call): Change call to emit_libcall_block.

    * cse.c (fold_rtx): Fix typo with parens in associative operation case.

Sat Sep  7 21:49:46 1991  Jim Wilson  (wilson at cygint.cygnus.com)

    * expmed.c (store_bit_field): In the code handling bitfields
    larger than the word size: set fieldmode to size large enough
    to hold bitfield; new variable orig_bitsize; don't let
    bit_offset calculation for WORDS_BIG_ENDIAN hosts go negative.
    (extract_bit_field): Likewise.
    (store_split_bit_field): For second word, strip of SUBREG if any
    before calling operand_subword.  Offset for second word if in
    memory is the next UNITS_PER_WORD aligned address.
    (extract_split_bit_field): Likewise.

    * expr.c (emit_move_insn): When emitting multiple move insns in
    the loop, remember last insn emitted so that it can be returned.

    * tree.c (enum tree_node_kind): Add new entry vec_kind to
    represent TREE_VECs.
    (tree_node_kind_names): Add name "vecs" for it.
    (make_node): Handle TREE_VECs in the 'x' case.
    (make_tree_vec): Use vec_kind instead of x_kind.

Sat Sep  7 16:25:50 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * cplus-call.c (ideal_candidate): Prefer non-const member functions
    to const member functions when there is a choice.
    * cplus-tree.c (propagate_assoc_offsets): Moved here from
    cplus-class.c
    (copy_nonvirtual_children): Deleted.

    * cplus-class.c, cplus-tree.c (layout_{v}basetypes,
    propagate_assoc_offsets, finish_base_struct): New offset
    computation/hierarchy implementation.  Now the lattice contains
    vbasetypes with zero-based offsets (and children from these types
    assume they are zero-based).  The CLASSTYPE_VBASETYPE list contains
    vbasetypes with hierarchy-dependent offsets (and children from these
    types have hierarchy-dependent offsets).  Note that now, virtual
    baseclasses are fully shared in the hierarchy.  The still are not
    shared at all in the CLASSTYPE_VBASETYPE list.
    * cplus-decl.c (xref_tag): Share vbasetypes in the lattice.
    * cplus-tree.h (lang_type): Add CLASSTYPE_VASSOC field so we can
    share virtual basetypes in inheritance lattices.

Sat Sep  7 13:07:12 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * c-parse.y (cast_expr): Supply OFWHAT arg to digest_init.
    * c-typeck.c (error_init, pedwarn_init): New functions.
    (digest_init, process_init_constructor): Use them.

    * out-m68k.c (output_function_prologue):  Add a negative constant
    to sp rather than adding a positive one, since this is faster.

    * out-m68k.c (output_function_prologue, output_function_epilogue):
    Use word sized immediates when possible.

    * Makefile.in (install-dir): Don't die if can't create mandir.
    (install-man): Don't put . in front of manext.
    (manext): Add . to the value.
    (mandir): Don't use manext.

    * genextract.c (main): Don't use __builtin_memcpy in GCC 1.

Fri Sep  6 19:29:55 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * caller-save.c (emit_mult_save, emit_mult_restore): Copy constant to
    TEMPREG and add integer, instead of the opposite order, which might
    not work on some machines.

    * fold-const.c (fold): Ensure we always return an object of the
    desired type.

    * reload1.c (reload, reload_as_needed): reload_in_progress must be
    set during caller-save processing.

Fri Sep  6 18:36:55 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * out-sparc.c (leaf_reg_{remap,backmap}): Define mapping for
    %o7/%i7, since user-defined registers might reference these.
    (legitimize_pic_address): Set CURRENT_FUNCTION_USES_PIC_OFFSET_TABLE
    if ORIG is a LABEL_REF.  For CONST_INT case, don't call force_reg
    during reload, use REG if available otherwise abort.

Fri Sep  6 17:16:05 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * configure: Default $cpu_type properly.

Fri Sep  6 05:50:58 1991  Ken Raeburn  (raeburn at watch.com)

    * genextract.c: Generate one large function with a switch, instead
    of a table of small functions to call.  Use __builtin_memcpy under
    GNU C.

    * genoutput.c: For "@" constructs, now generates a lookup table per
    insn, instead of a switch.

Fri Sep  6 15:40:54 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * cccp.c (skip_if_group): Deal with invalid directives the same
    way handle_directive does.

Fri Sep  6 16:37:04 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * tm-sparc.h (RTX_COSTS): Define costs for MULT and various divides.

    * loop.c (move_movables): Call `gen_lowpart_common' instead of
    building SUBREG manually.

    * local-alloc.c (block_alloc): When convert scratch to a reg, must
    set regs_ever_live for all hard registers used by the new reg, not
    just the first.

Fri Sep  6 07:15:44 1991  Torbjorn Granlund  (tege at mole.gnu.ai.mit.edu)

    * gnulib2.c (__negdi2): Change it to work like __subdi3.
    * gnulib2.c (_udivmoddi4): Make faster special case for CPUs with
    a udiv_qrnnd that can handle unnormalized (i.e. with less than
    LONG_TYPE_SIZE significant bit) divisors.

    * gnulib2.c (__muldi3): Cast operands to unsigned.

    * gnulib2.c (__Xcmpdi): Use `long' for all variables for
    consistency.

    * gnulib2.c (__udivmoddi4): New function with code from __udivdi3,
    extended to give remaider.
    * gnulib2.c (__divdi3, __moddi3, __udivdi3, __umoddi3): Use
    __udivmoddi4.
    * gnulib2.c: (__moddi3): Result sign is only dependent on U, not V.

Fri Sep  6 05:44:07 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * cse.c (cse_insn): Accept new arg IN_LIBCALL_BLOCK.
    If in libcall block, don't record destinations in hash table.
    Remove explicit use of SFmode and DFmode when checking -ffloat-store.
    (cse_basic_block): Pass new arg to cse_insn to indicate when we
    are processing an insn surrounded with REG_LIBCALL/REG_RETVAL notes.

    * optabs.c (emit_libcall_block): New function.
    (expand_binop, expand_unop): Remove kludge of referencing library
    function SYMBOL_REF before libcall block.
    Use emit_libcall_block.
    (expand_float, expand_fix): Rework library calls to use
    emit_libcall_block.
    * calls.c (struct arg_data): Add new field, initial_value.
    (expand_call): Don't make libcall block for calls that return
    aggregates.
    Remove kludge of referencing function SYMBOL_REF outside of block.
    For constant calls, save RTL for arg in args[i].initial_value and
    start a sequence.
    When making REG_EQUAL note, use INITIAL_VALUE instead of VALUE.
    Use emit_libcall_block for constant calls.
    * expr.h (emit_libcall_block): Define it.

Fri Sep  6 15:58:52 1991  Torbjorn Granlund  (tege at zevs)

    * longlong.h (68020, i386): Don't define machine-dependent
      __umulsidi3 (so the default definition is used).
    * longlong.h (all machines): Cast all operands, sources and
      destinations, to `unsigned long int'.
    * longlong.h: Add gmicro support.

Fri Sep  6 01:42:09 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * jump.c (jump_optimize): Delete duplicate line number notes.

Thu Sep  5 19:23:24 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * configure (romp): Fix typo in name of xm_file.

    * rtlanal.c (dead_or_set_p): If INSN has a CLOBBER for X, X is
    dead.

    * gnulib1.c (cmpdf2, cmpsf2): Delete unused functions.
    * gnulib2.c (anddi3, iordi3, xordi3, one_cmpldi2, adddi3, subdi3):
    Likewise.
    * optabs.c (emit_cmp_insn): Clean up code now that integer and
    float comparisons are done differently.
    (init_optabs): Remove references to unused functions listed above.
    * Makefile.in (LIB1FUNCS, LIB2FUNCS): Likewise.

Thu Sep  5 18:32:27 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * m68k.md (zero_extend*): Don't allow memory-memory due to aliasing.

    * expr.c (do_jump): Don't lose if only 1 insn precedes new jump.

    * sparc.md (ashldi3): Fix dumb bug detecting constant 1.

    * out-sparc.c (output_move_double): Use split_double for constant.
    Properly decrement addreg1.

Thu Sep  5 15:20:25 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * out-sparc.c: Include expr.h and delete extern declarations.

    * rtlanal.c (rtx_equal_p): Correct typo in comment or spacing.
    * reload1.c (reload): Likewise.
    * protoize.c: Likewise.
    * longlong.h: Likewise.
    * local-alloc.c (block_alloc): Likewise.
    * jump.c: Likewise.

    * unroll.c (iteration_info): Don't calculate loop iterations based
    on a giv iterator, since the current code often gives the wrong
    result.  This case is rare, so it does not seem worth handling at all.

    * sched.c (schedule_insns): When the only sched pass is after
    reload, must clear unused_insn_list and unused_expr_list then,
    instead of during the nonexistant pass before reload.

    * sched.c (schedule_block): When calculating estimated IPC, avoid
    divide by zero.

    * sparc.md: Correct two define_splits for seq/sne patterns of the
    form `x + (i == 0)', and add a missing `addx' pattern used by
    these define_splits.

    * toplev.c (fatal_insn_not_found): Correct typo in error message.
    (main): Include "gsdb" and "gdbx" in warning message when -g is not
    supported.

    * expr.h (enum expand_modifier): Delete last vestige of
    EXPAND_INTO_STACK.

Thu Sep  5 13:50:21 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * c-typeck.c (digest_init, process_init_constructor): Include the
    variable name, member name, and/or array indices in error messages.
    This makes it tolerable to debug large data structure initializers.
    Reword some messages to work with the name and/or function call
    argument included.  New arg OFWHAT.  All callers changed except
    one digest_init call in each of c-parse.y and objc-parse.y.
    (warn_for_assignment): Reduce to a single message argument,
    automatically handling formatting for function call arguments.
    All callers changed.
    (convert_for_assignment): If ERRTYPE is a null string, this is
    parameter passing for a function, so output different error messages.
    (convert_arguments): Pass null string to convert_for_assignment to
    indicate parameter passing.

Thu Sep  5 13:44:19 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * sched.c: Correct typos in comments.
    (sched_note_set): Don't try to calculate live info for global
    register variables.
    (attach_deaths): Don't add REG_DEAD notes for global register
    variables.

    * tm-sparc.h (SELECT_SECTION): Can't put a variable in text section
    if flag_pic and RELOC are both true, same test that varasm.c does.

Thu Sep  5 13:15:43 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * rtlanal.c (reg_referenced_p): Handle USE and CALL.
    Use switch instead of if-then-else.

Thu Sep  5 08:03:58 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * cplus-class.c (propagate_assoc_offsets): Don't fail to
    propagate the offset to the rightmost basetype.

    * cplus-decl.c (xref_tag): Allocate nodes for basetype info on
    permanent obstack, not temporary obstack.

Wed Sep  4 18:53:16 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * fixincludes : Change `m68k' to `__m68k__' in all #if's.

    * Makefile.in (ALLOCA_FLAGS): Add -Demacs.
    (ALLOCA_FINISH): Put option before input file name.
    (alloca.o): Supply $(INCLUDES).

    * Makefile.in (GCC_CFLAGS): New parameter.
    (protoize, protoize.o, unprotoize, unprotoize.o): Use GCC_CFLAGS.
    (enquire, enquire.o, collect2, collect2.o, SYSCALLS.c.X): Likewise.

Wed Sep  4 18:13:56 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * combine.c (make_extraction): When picking up low-order part,
    ensure that we don't create a non-aligned object if alignment
    is required.

    * expr.c (emit_push_insn): Ensure we only call force_const_mem on a
    constant.

    * config.subr: Set `os' to be the last `-' and everything following it.
    `romp' is the basic machine name for the rtpc.
    `aos' is IBM's name for BSD.
    * configure: Default `cpu_type' to the first field before an
    optional `-'.
    Add a29k, a29k-ultra, romp, and rs6000.
    * xm-a29k-ultra.h: New file.

Wed Sep  4 15:46:50 1991  Tom Wood  (wood at dg-rtp.dg.com)

    Changes from Ron Guilmette:
    * dwarfout.c (output_symbol): Move tests for omitting declarations
    to dwarfout_file_scope_symbol.  No need for `local' parameter.
    Use TREE_PUBLIC and TREE_EXTERNAL to determine whether a variable
    or function is global.
    (finalizing, dwarfout_file_scope_delayed_symbol): Delete.

    * toplev.c (compile_file): Delete use of dwarfout_file_scope_symbol
    for initialized VAR_DECLs.  All global declarations are passed to
    dwarfout_file_scope_symbol (except function definitions and types).

    (compile_file, rest_of_decl_compilation): Attribute time in
    {dbxout,sdbout,dwarfout} functions to symout_time.

    * varasm.c (assemble_variable): Check and update TREE_ASM_WRITTEN
    for a global register variable.
    Delete use of dwarfout_file_scope_symbol for VAR_DECLs.

Tue Sep  3 23:34:57 1991  Torbjorn Granlund  (tege at zevs)

    * sparc.md (ashldi3 expander & recognizer): Make shift count have
    SImode.  Used to have DImode.

    * expmed.c (emit_store_flag): Declare arg UNSIGNEDP.

    * vax.md (adddi3): Make operands 2 and 3 commutative.

    * sparc.md (subtract constant then return): Peephole deleted.

Tue Sep  3 22:23:52 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * Makefile.in (mostlyclean, clean, realclean): Some files were missing.

    * gvarargs.h (va_list): Make it typedef, not macro.
    * va-mips.h, va-pyr.h: Likewise.

Tue Sep  3 22:07:04 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * cplus-init.c (build_vec_delete): Fix off-by-one error for arrays
    of length 1.

Tue Sep  3 19:30:45 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * combine.c (try_combine): Don't pass a STRICT_LOW_PART to
    reg_overlap_mentioned_p.

    * cse.c (fold_rtx): If INSN is zero, copy X before we change
    anything inside it.
    When looking for associative operation, pass zero as missing arg to
    recursive call.
    (find_comparison_args): Add zero for missing arg to fold_rtx calls.

    * reload.c (find_reloads): Correct code that prevents replacing
    a SET_DEST with a constant so that it correctly looks for an
    operand being a SET_DEST.

Tue Sep  3 19:17:34 1991  James Van Artsdalen  (james at bigtex.cactus.org)

    * out-i386.c (split_di): Call split_double for CONSTANT_P.
    (fix_op): Delete.
    (float_op): Don't examine the mode of the FLOAT operand.
    (output_float_compare): Don't make new %ax RTX: use scratch
    operand from insn.

    * i386.md (float mode tstM,cmpM,fixuns_truncMN2,fix_truncMN2): Use
    match_scratch.
    (float mode tstM,fixuns_truncMN2,fix_truncMN2): Don't gen temp RTX:
    use scratch operand.
    (fix_truncMN2,floatMN2): Split pattern into a separate DFmode and
    SFmode patterns so that operands[1] has a mode.
    (sCOND patterns): Don't set cc_status to previous status.
    (cmpstrsi): Don't explicitly reference reg 2.

Tue Sep  3 16:28:56 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * optabs.c (expand_binop): Fix carry calculation.

    * varasm.c (decode_addr_const): Given a LABEL_DECL, Make a LABEL_REF.
    (const_hash): Handle a LABEL_REF.
    * expr.c (expand_expr): Use FUNCTION_MODE for memref to a LABEL_REF.

    * configure: Fix typo in last change.

    * cccp.c (handle_directive): Normally no error for line with `###'.

Tue Sep  3 10:53:12 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * out-m88k.c, tm-m88k.h: Delete remnants of the fancy abort.
    * tm-m88kdgux.h: No longer identify as version DG-*.
    * m88k files: Update copyright dates.

Tue Sep  3 03:18:54 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * expr.c (expand_expr): Get rid of EXPAND_INTO_STACK.

Mon Sep  2 14:07:54 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * gcc.c (do_spec_1): In %X, terminate the arg after each option.

    * config.subr: If argument contains `local', always accept it.
    * configure: If machine type contains `local',
    construct file names from that machine type name.

    * configure: Make config.status a shellscript to redo the configure.
    No need now to change / to - when storing $(target) in Makefile.
    Store $(host_make_var_file) in Makefile also.
    Set host_make_var_file to ../Makefile.in after creating Makefile
    if no make-... file actually exists for this host.
    * Makefile.in (host_make_var_file): Dummy definition to be filled in.
    (Makefile): New rule to rerun `configure'

    * tm-sysv4.h (ASM_DECLARE_FUNCTION_SIZE): New macro.

    * tm-mips.h, tm-m88k.h (abort): Macro definition deleted.  It is
    not right for any machines description to specify use of fancy_abort.

    * protoize.c [v.4]: Include fcntl.h.
    (execvp): Correct type for second arg.
    (compile_params): Remove `const'; that loses when calling execvp.

    * cccp.c (directive_table): Typo in entry for do_ident.

    * xm-m68k.h (alloca): Define macro with arg.

    * emit-rtl.c (reorder_insns_with_line_notes):  New function.
    (find_line_note, emit_line_note_after):  New functions.

    * jump.c (jump_optimize):  When moving else clause before test,
    only move the insn as far as needed, and use new function
    reorder_insns_with_line_notes.

Mon Sep  2 03:30:35 1991  James Van Artsdalen  (james at bigtex.cactus.org)

    * Makefile.in (collect2): Compile with gcc.

Sun Sep 1 9:03:46 1991    (Eric Youngdale at [e-mail])

    Define two macros to eliminate the need for a seperate collect pass.

    * tm-vms.h (ASSEMBLE_OUTPUT_CONSTRUCTOR): Define.
    (ASSEMBLE_OUTPUT_DESTRUCTOR): Define.

Sun Sep  1 08:14:22 1991  Michael Meissner  (meissner at osf.org)

    * collect-osf.c (main): Print version number if -v.  Also ignore all
    arguments beginning with -c rather than just '-c'.

    * make-decrose (collect): Add version.o to link.

Sat Aug 31 17:03:23 1991  Michael Meissner  (meissner at osf.org)

    * cplus-input.c (inline macro definition): If inline is already
    defined, don't redefine it.

    * collect-osf.c (main): Look for gld and gas instead of ld and as,
    so collect-osf can be installed as ld.  Use a default path of
    /usr/ccs/gcc to find the linker and assember.  Ignore the -c switch,
    which GCC uses to say that collect is needed.

    * osf-main.c (__finis): Don't call descructors already called if one
    of the destructors calls exit (which in turn calls __finis).

    * tm-mips.h (DBX_REGISTER_NUMBER): Use mips_dbx_regno to map
    register number to debug register number.
    (GP_DBX_FIRST, FP_DBX_FIRST): New macros, giving the first debug
    register numbers for gp registers and fp registers.

    * out-mips.c (mips_dbx_regno): New global array to map GCC register
    number to debug register number, to fix problem with OSF/1 stabs
    using 38 for the first fp registers, rather than 32.
    (override_options): Set up OSF/1 SIGINFO signal handler to notmake
    the interruptable system calls read, write, and wait not return
    error condition.  Also initialize mips_dbx_regno.

    * make-decrose (CFLAGS): Add $(MSTATS) variable to set -mstats.
    (CFLAGS_NODEBUG): Like CFLAGS, except no debugging or inlining.
    (DEB_OPT): Define in terms of DEBUG, OPT, and PROFILE.
    (cplus-lex rule): Build cplus-lex with no debug or inlinings.

Sat Aug 31 12:52:17 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * cccp.c (handle_directive): Be more fussy detecting `# LINE' case.

    * cccp.c (directive_table): Pass through and ignore #ident.
    (do_ident): New function.
    (skip_if_group): Error if unrecognized directive seen.

    * jump.c (jump_optimize): In converting  x=a; if (...) x=b;  to
    store flag, insert all the new code in just one line.

    * gcc.c (do_spec_1): Use xmalloc to make linker_options the first time.

    * expr.c (expand_expr): Make EXPAND_SUM and EXPAND_INITIALIZER
    imply EXPAND_CONST_ADDRESS in all cases.

    * c-decl.c (c_decode_option): -Wall sets warn_uninitialized.
    * flags.h (warn_uninitialized): Declared.
    * toplev.c (warn_uninitialized): No longer static.

    * cccp.c (main): Make no assumptions about include_defaults
    in calculation of max_include_len.  Add fudge space if VMS.

    * reload.c (find_reloads_toplev): New arg IS_SET_DEST.
    Don't replace reg with constant in destination of a SET.
    (find_reloads): Pass that arg.  Also don't replace here.

    * cplus-xref.c: Finish installing changes from Youngdale.

Sat Aug 31 09:02:25 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * cplus-decl2.c (finish_file): Call varasm routines to assemble ctor
    and dtor lists.

    * cplus-dbxout.c (dbxout_type_methods): Fix error in printing symbol
    info for classes that only define a destructor.

Sat Aug 31 08:32:12 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * cse.c (cse_end_of_basic_block): Correctly handle the case of a basic
    block where a conditional branch out of the block becomes unconditional
    and a conditional branch to the end of the block becomes a noop.

    * combine.c (try_combine): In case where we have a PARALLEL
    involving a load and sign extend, use reg_overlap_mentioned_p
    instead of reg_mentioned_p.
    If we have a PARALLEL of two independent SETs, try to split them
    up into separate insns.

    * combine.c (move_deaths): Instead of placing the REG_DEAD notes
    on TO_INSN, add them to a list whose address is given as an
    operand.
    (distribute_notes): Allow for the case when the death of an object
    is between I2 and I3.
    Set reg_last_death to corrspond to the location of the REG_DEAD
    note being placed.
    (try_combine): Call move_deaths in new way and pass returned list
    to distribute_notes if it is non-empty.

    * local-alloc.c (requires_inout_p): Don't have cases for '[Q-U]' unless
    EXTRA_CONSTRAINT is defined..

    * local-alloc (block_alloc): Don't allocate SCRATCH on machines with
    SMALL_REGISTER_CLASSES defined.

    * regclass.c (reg_class_record): Add missing case for 'V'.

Fri Aug 30 04:42:19 1991  James Van Artsdalen  (james at bigtex.cactus.org)

    * tm-i386.h (OUTPUT_JUMP): Use cc_prev_status.

Fri Aug 30 17:08:52 1991    (Eric Youngdale at [e-mail])

    * xm-vms.h (LOCATE_START_OF_FILE_NAME): Remove.
    (FILE_NAME_NONDIRECTORY): Fix typo.
    (XREF_FILE_NAME): Use FILE_NAME_NONDIRECTORY instead of
    LOCATE_START_OF_FILE_NAME, and omit the leading underscore in the
    generated file name.
    (FILE_NAME_ABSOLUTE_P): Define to use hook in cplus-xref.c.
    (FILE_NAME_JOINER): Define to use hook in cplus-xref.c.

    * cplus-xref.c: Fix bug in default definition of FILE_NAME_ABSOLUTE_P.
    (GNU_xref_open): Fix bug - wrong argument to XREF_FILE_NAME.
    (FILE_NAME_JOINER): New macro.
    (GNU_xref_file): Use it.

Fri Aug 30 17:30:15 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * cplus-xref.c: Reinstall Aug 25 changes discarded by Tiemann.

    * expr.c (expand_expr): New modifier option EXPAND_INITIALIZER.
    * varasm.c (output_constant): Use that.
    * jump.c (forced_labels): New var records labels not to delete.
    (jump_optimize): Don't delete those labels.
    * flow.c (find_basic_blocks): Any computed goto goes to those labels.
    * varasm.c (decode_addr_const): Deal with LABEL_DECL.

Fri Aug 30 15:41:03 1991  Michael Meissner  (meissner at osf.org)

    * mips.md (copyleft): Use separate copyright years.
    (mov*): Use nonimmediate_operand instead of general_operand.

    * tm-mips.h (copyleft): Use separate copyright years.

    * xm-mips.h (copyleft): Use separate copyright years.

    * xm-umips.h (copyleft): Use separate copyright years.

Fri Aug 30 08:47:30 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * cplus-typeck.c (build_x_*): Try first calling `build_opfncall'
    with FLAGS==0.  If that succeeds, check protection.
    (build_conditional_expr): `fold' does not preserve the type of it's
    expressions, which is a problem for C++ when trying to keep ints and
    enums distinct.

    * cplus-decl.c (lookup_name): When there is a choice between seeing
    a name as a type and seeing as a decl, call `arbitrate_lookup' to
    make the decision.
    * cplus-lex.c (arbitrate_lookup): New function.  Uses minute amounts
    of syntactic context to decide whether to see a name as a type or
    something else.

Fri Aug 30 07:40:49 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * jump.c (delete_jump): When checking REG_DEAD notes, make sure they
    have a legal value.

Fri Aug 30 00:57:05 1991  James Van Artsdalen  (james at bigtex.cactus.org)

    * local-alloc.c (alloc_qty_for_scratch): Treat Q - U as reg class if
    EXTRA_CONSTRAINT is not defined.
    * regclass.c (reg_class_record): Likewise.

Thu Aug 29 21:39:07 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * c-typeck.c (build_binary_op_nodefault): Fix last change.

Thu Aug 29 19:11:05 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * recog.c (general_operand, const_double_operand): Similar to
    immediate_operand, don't accept a VOIDmode operand if the
    caller wants floating.
    * out-pyr.c (nonindexed_operand): Likewise.

Thu Aug 29 09:53:27 1991  Michael Tiemann  (tiemann at pogo.gnu.ai.mit.edu)

    * cplus-tree.h ({SET,CLEAR}_ASSOC_*): New macros needed because not
    all C compilers support conditional expressions as lvalues.
    (lang_type): Change type of MEMOIZED_TABLE_ENTRY and SEARCH_SLOT
    from `void *' to `char *', to make braindead compilers at less of a
    disadvantage.

Thu Aug 29 08:07:40 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * m88k.md (define_function_unit): Update latencies.

    * out-m88k.c (output_function_profiler): Correct offsets for
    register saves.
    * tm-m88ksvr4.h (FUNCTION_PROFILER): Use the name _mcount and do
    register saves.

    * tm-m88k.h (ASM_DWARF_POP_SECTION): Specify "previous".

    Changes from Ron Guilmette:
    * dwarfout.c (lookup_filename): Only increment valid_ft_entries
    once when adding a filename to the table.
    (output_symbol): Do output DIEs for a global VAR_DECL definition.

Thu Aug 29 06:15:32 1991  Michael Tiemann  (tiemann at rtl.cygnus.com)

    * cplus-type2.c (build_functional_cast): If we have a valid value in
    `expr_as_conversion' return that before returning error_mark_node.

    * cplus-init.c (expand_recursive_init): Fix typo is testing
    TYPE_USES_VIRTUAL_BASECLASSES.

Wed Aug 28 23:12:35 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * c-typeck.c (build_binary_op_nodefault): For shift and rotate ops,
    if traditional, use the common type of the operands.

Wed Aug 28 07:31:33 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * dwarfout.c, dwarf.h, README.DWARF: Replacement files from Ron
    Guilmette that bring the dwarf implementation up to that defined by
    draft 4 of the dwarf specification (dated 7/31/91).

Wed Aug 28 06:24:30 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * all *.md files except a29k.md and romp.md: Don't allow CONST_INT
    as operand for RTL operations that need a mode to be well-defined,
    e.g., SIGN_EXTEND, ZERO_EXTEND, TRUNCATE, FLOAT.  Similarly, don't
    allow CONST_INT as first operand of a COMPARE.

    * machmode.h (MIN, MAX): Undefine these before our definition.

Tue Aug 27 21:33:04 1991  Michael Tiemann  (tiemann at pogo.gnu.ai.mit.edu)

    * version.c: Now 1.95.

Tue Aug 27 18:05:25 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * reload1.c (possible_group_p): Use earliest class that needs a group.

    * gcc.c (do_spec_1): Handle %x and %X.
    (link_command_spec): Use %X.  If given -collect, pass -c.
    (default_compilers c++): Use %x to pass -c to linker.

    * cse.c (find_comparison_code): Don't call fold_rtx,
    because we don't know which insn to pass for its second argument.

    * cse.c (fold_rtx): Don't fold what we get from lookup_as_function.

Tue Aug 27 17:46:59 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * cse.c (rtx_cost): A USE is free; it is likely being used as a marker.

    * cse.c (cse_insn): If we decided not to make a reg-reg copy between
    equivalent regs into a no-op, see if there is an equivalent constant
    that is cheaper than the register we decided to use.

    * cse.c (cse_insn): Fix arg in insert_regs call when making a
    secondary equivalence due to a SUBREG; we are not modifying the
    register.

    * cse.c (delete_dead_from_cse): Treat a SET that copies a register
    to itself as if it were setting a dead register.

    * cse.c (find_comparison_args): Call fold_rtx on the args that we
    are about to return.
    (fold_rtx, case SUBREG): Copy code from equiv_constant that looks up
    a SUBREG in the hash table.
    If our our folded operand is equivalent to a constant, use that when
    seeing if we can get a part of a constant.
    (fold_rtx): Don't short-circuit recursive call for an operand that
    is a SUBREG; add comment in REG case that we are doing equiv_constant.
    When looking for associative operation, call fold_rtx on potential
    constant as well as equiv_constant.
    (equiv_constant): Just look up a constant quantity for a register;
    fold_rtx will do the SUBREG operations.

    * fold-const.c ({neg,mul,lshift,rshift,lrotate,rrotate}_double):
    No longer static.
    * cse.c (simplify_{unary,binary}_operation): Fold some DImode
    operations.

    * fold-const.c (fold, case EQ_EXPR, NE_EXPR, ...): Add code to handle
    cases where we are comparing the result of a comparison.

Tue Aug 27 14:35:59 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * flow.c (mark_used_regs): Set regs_ever_live for all hard regs.
    Warning: this might break FUNCTION_PROLOGUE and FUNCTION_EPILOGUE
    in some ports.  But I've checked all the installed ones.
    * tm-gmicro.h (FUNCTION_PROLOGUE):
    Clear bit for fp reg if used as such.
    * tm-mips.h (MUST_SAVE_REGISTER): Only frame_pointer_needed affects fp.

    * c-decl.c (store_parm_decls): No error if arglist contains type tag.

    * optabs.c (expand_fix): Really call emit_cmp_insn right.

    * floatlib.c: New file.

    * gnulib2.c (__clz_tab): Moved to _udivdi3.

Tue Aug 27 06:44:12 1991  Michael Tiemann  (tiemann at rtl.cygnus.com)

    * cplus-typeck.c (c_expand_return): Don't use the cleanup generated
    by `build_functional_cast'.

    * cplus-class.c (resolves_to_fixed_type_p): Handle WITH_CLEANUP_EXPR.

Mon Aug 26 20:55:58 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * c-parse.y (yylex): Cast shorts[n] to long before shifting.
    * fold-const.c (decode): Likewise.

    * Makefile.in (INSTALL_DATA): Renamed from INSTALL_FILE.

    * cse.c (canon_hash): Don't crash if subexpression is 0.

    * cplus-lex.c (interface_strcmp): Put back variable s1.

Mon Aug 26 18:14:33 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * function.c (instantiate_virtual_regs_1): Complete previous change;
    had omitted arg on two returns.

Mon Aug 26 15:16:39 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * optabs.c (expand_float, expand_fix): Pass new arg to emit_cmp_insn.

    * out-m68k.c (singlemove_string): Fix last change.

Mon Aug 26 11:20:51 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * m88k.md (cmpsi insn): Don't provide an insn that compares two
    constants.

Mon Aug 26 08:34:48 1991  Michael Meissner  (meissner at osf.org)

    * collect-osf.c (toplevel, read_file, end_file): Don't use mmap,
    unless all defines needed are defined.
    (various): If -debug turn on debugging code.  Change all occurances
    of #ifdef DEBUG sections to if (debug).
    (main, add_to_list): Correctly cast xcalloc calls.
    (scan_prog_file): Correct xcalloc to allocate enough space
    (scan_prog_file): If -debug, don't dump entire symbol table, just
    dump the constructors and destructors.

    * make-decrose (CFLAGS): Use DEB_OPT for default debug and optimize
    options, use SHLIB for default shared library versions.
    (DEB_OPT): Define to be -g -O2.
    (SHLIB): Define to be -L${BUILD}/usr/ccs/lib, which forces static
    libraries with both old and new 1.39 compilers.
    (COFF_CFLAGS): Define to be -O2 -g0.
    (collect): Add LIBDEPS dependency.

Mon Aug 26 07:22:21 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * machmode.h (MIN, MAX): Define here.
    * c-decl.c, calls.c, cplus-class.c, cplus-decl.c, cplus-tree.c:
    Don't define here.
    * expr.c, fold-const.c, function.c, integrate.c, recog.c: Likewise.
    * rtl.c, sdbout.c, stmt.c, stor-layout.c, varasm.c: Likewise.
    * c-typek.c, combine.c, cse.c, emit-rtl.c, expmed.c, final.c:
    Delete definitions of "min" and "max"; use MIN and MAX now defined
    in machmode.h.
    * genemit.c, regclass.c, reload.c, reload1.c: Likewise.
    * cccp.c (MIN, MAX): Define instead of min and max for consistency.

    * tm-rs6000.h (HARD_REGNO_MODE_OK): Don't put DImode in reg 31;
    similarly for TImode.

    * cse.c (cse_skip_to_next_block): Variable deleted.
    (cse_insn): Don't set it anymore.
    (cse_basic_block): Don't use cse_skip_to_next_block; instead, look
    for unconditional jumps explicitly; correctly handle unconditional
    jumps to the end of the basic block by extending the basic block in
    that case.

    * reload1.c (alter_reg): Ensure that stack slot is always the correct
    mode.

Mon Aug 26 06:20:43 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * cplus-type2.c (build_functional_cast): Treat constructor casts as
    having cleanups in this function.
    * cplus-decl.c (finish_decl): Use cleanups created by functinal
    casts used as initializers.

    * cplus-init.c (expand_member_init): Call error with
    IDENTIFIER_POINTER, not DECL_NAME, of NAME.

    * cplus-method.c (fndecl_as_string): Don't skip `in_charge'
    parameter twice.

    * cplus-init.c (build_new): Delete code which short-circuited
    multiple indirections in ABSDCL and made everything look like just a
    single level of indirection.

    * cplus-typeck.c (warn_for_assignment): Now takes a FUNCTION_DECL
    instead of an IDENTIFIER_NODE as an argument.  Also, print
    reasonable message when ARGNUM < 0.

    * cplus-typeck.c (type_unknown_p): If TREE_CODE (EXP) == TREE_LIST,
    it's type is unknown.

    * cplus-typeck.c (commonparms): Don't insert default parmeter values
    into existing arg lists.  Instead, unify them into new ones only.

    * cplus-typeck.c (convert_for_{initialization,assignment}): Pass
    FNDECL instead of function name.  Use `lang_printable_name' to pass
    printable name to `warn_for_assignment'.

    * cplus-typeck.c (convert_arguments): Don't forcibly convert ptrs to
    other things into ptrs to functions just to satisfy the conversion
    of virtual functions.

Sun Aug 25 22:44:57 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * cplus-typeck.c (compparms): Deal with STRICT == 3.
    * cplus-search.c (get_first_matching_virtual): Call `compparms' with
    STRICT == 3.

    * cplus-lex.c (operator_name_string): Don't abort if we cannot find
    a operator name for NAME.  Instead, return identifier for
    <invalid operator>.

Sun Aug 25 15:42:59 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * cplus-xref.c (FILE_NAME_ABSOLUTE_P): New macro.
    (GNU_xref_file): Use it.
    (open_xref_file): Use new macro XREF_FILE_NAME if defined.
    * cplus-lex.c (FILE_NAME_NONDIRECTORY): New macro.
    Used frequently instead of strrchr.
    * xm-vms.h: Define those three macros.

    * optabs.c (expand_binop): Use word mode for force_reg on op1 of shift.

    * out-m68k.c (singlemove_string): Use moveq when appropriate.

    * final.c (split_double): Handle all integer constants.
    * out-m68k.c (output_move_double): Use split_double for all constants.
    * ??? Most out-*.c need changing.

    * c-decl.c (finish_enum): Make some local vars unsigned.
    * c-common.c (type_for_size):
    * c-convert.c (convert_to_integer):
    * tm-i860.h (ASM_OUTPUT_ASCII):
    * c-parse.y (yylex):
    * expr.c (get_pointer_alignment):
    * stor-layout.c (layout_union, layout_record):
    * tree.c (get_unwidened, get_narrower):

    * expr.c (emit_library_call): Don't declare va_list as register.
    * final.c (asm_fprintf): Likewise.
    * tree.c (build, build_nt, build_parse_node): Likewise.

    * expr.c (do_jump_for_compare): Don't assume the compare survives
    when the branch is emitted.

    * expr.c (convert_move): Fix typo in prev change.

    * emit-rtl.c (fconst2_rtx, dconst2_rtx): New vars.
    (init_emit_once): Initialize them.

    * expmed.c (extract_bit_field, store_bit_field):
    For multi-word field, do words from least significant first.

    (extract_split_bit_field): OP0 is only the first word of the
    source, so if this is a SUBREG, must call operand_subword on
    SUBREG_REG (OP0) instead of OP0.

    * varasm.c (output_constructor): Correctly output constants for
    bitfields which are greater than HOST_BITS_PER_INT.  Use
    TREE_INT_CST_HIGH for the high bits.

    * Makefile.in (ENQUIRE_CFLAGS, ENQUIRE_LDFLAGS): New parameters.
    (enquire, enquire.o): Use them.

    * tm-sysv4.h: New file, cut out from tm-m88k.h.
    * tm-m88k.h: Include that.

    * vax.md (sltu, sgeu): New patterns.

Sat Aug 24 11:19:43 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * cplus-init.c (build_offset_ref): Pass a TYPE_DECL node, not a
    RECORD_TYPE node, to `build_component_type_expr'.

    * cplus-cvt.c (convert_to_integer): Warn about conversion from
    integral type to enumeral type if FLAG_INT_ENUM_EQUIVALENCE is zero.
    (convert_force): Set FLAG_INT_ENUM_EQUIVALENCE non-zero when calling
    `convert'.

    * cplus-typeck.c (build_x_*_op): Don't try using built-in operators
    if user-defined ones are not accessible.

    * cplus-init.c (expand_aggr_init_1): Use `expand_expr' to set the
    DECL_RTL of the TARGET_EXPR.  This is a generalization of code that
    used to require that EXP be some sort of _DECL.

    * cplus-init.c (init_init_processing): Link global runtime functions
    __builtin_new and __builtin_delete to their canonical operator
    names (i.e., op$nw and op$dl).

    * cplus-lex.c (init_lex): Don't see `dynamic' as a reserved word if
    SOS is not defined.
    * cplus-decl2.c (flag_dynamic): Delete unused variable.

    * cplus-decl.c (define_case_label): Give error when case label cuts
    into a binding contour with cleanups.
    * stmt.c (last_cleanup_this_contour): Changed name from
    `this_contour_has_cleanups_p'.  Now returns last cleanup, if there
    was one.
    * tree.h: Declare `last_cleanup_this_contour'.

    * cplus-decl.c (grokdeclarator): Don't let member functions have
    static linkage.

    * cplus-tree.c (layout_basetypes): Copy non-virtual basetypes of
    virtual basetypes so that search routines can find ambiguities
    arising in lattices where the same type appears as a non-virtual
    basetype of different types in the lattice.
    (copy_nonvirtual_children): Implement a recursive deep-copy of
    nonvirtual types in an inheritance lattice.

    * cplus-search.c (lookup_fnfields): Correctly catch case where there
    are multiple functions in an MI lattice.
    * cplus-call.c (ideal_candidate): If we find a requested function is
    ambiguous in an MI lattice, set CP->EVIL to 1.
    (build_method_call): If CP->EVIL is set on return from
    `ideal_candidate', return error_mark_node.

    * cplus-decl.c (lookup_name): Prefer finding typenames to overloaded
    functions where there's a collision.
    (pushdecl): Don't override the declaration of global functions with
    a TYPE_DECL that has the same name.  `lookup_name' now knows how to
    find both.
    (globalize_nested_type): Changed to look in IDENTIFIER_TYPE_VALUE
    slot for global definitions that are not in IDENTIFIER_GLOBAL_VAL.
    * cplus-type2.c (build_functional_cast): Deal with more ambiguities
    and more cases where the syntactic form `NAME ( PARMS )' can have
    meaning.

Sat Aug 24 01:33:00 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * expr.c (convert_move): Make integer extension general.

    * optabs.c (init_extends, gen_extend_insn): Finish and turn on.

    * reload1.c (possible_group_p): Insist on regs in needed class.

    * SYSCALLS.c (alloca): Declare arg as size_t.

    * expr.c (store_constructor): Handle union constructor.

    * final.c (split_double): long long CONST_DOUBLE now has VOIDmode.

    * optabs.c (expand_binop): Fix carry propagation bugs.
    Handle carry propagation for big-endian case.

Fri Aug 23 21:29:46 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * cplus-decl.c (finish_decl): More PIC fixes.  Also, don't assign
    any storage for static member variables except when they are being
    defined.

    * cplus-init.c (build_virtual_init): Change interface to take
    MAIN_ASSOC instead of FOR_TYPE.
    (expand_aggr_init_1): Ditto.
    (expand_recursive_init_1): Ditto.
    (expand_aggr_vbase_init{_1}): Change interface to take an assoc
    instead of a type.
    (expand_recursive_init): Ditto.

    * cplus-pt.c (uses_template_parms): Handle PARM_DECL nodes.

    * cplus-search.c (get_base_assoc): Use ASSOC_MARKED instead of
    ASSOC_BASETYPE_MARKED to mark visited nodes.
    (lookup_field, loopup_fnfields): Use ASSOC_FIELDS_MARKED instead of
    ASSOC_VBASE_MARKED when searching.
    ({bfs_,un,bfs_un}marked2p): Deleted, unused.
    (dfs_{un}mark2): Deleted, unused.
    (dfs_unmark12): Deleted, unused.
    (build_vbase_vtables_init): Change interface to take MAIN_ASSOC
    instead of FOR_TYPE.

Fri Aug 23 18:31:53 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * expr.c (do_store_flag): Give up if can't directly compare args.

Fri Aug 23 18:00:58 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * function.c (instantiate_virtual_regs_1): Add new arg and now returns
    int instead of void.
    All callers changed.

    * expr.c (compare_constants): Deleted.
    (compare_from_rtx): Use simplify_relational_operation instead of
    compare_constants; abort is not needed since
    simplify_relational_operation will return 0 if given VOIDmode.

    * cse.c (fold_rtx): Correctly compute mode of operands being
    compared.

Fri Aug 23 17:16:27 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * stmt.c (expand_end_case):
    Avoid special cases for modes when widening.
    Realize __builtin_classify_type reduces to int constant.

    * optabs.c (emit_cmp_insn): New arg, MODE.  All callers changed.
    If both args are const_int, copy one to a reg.

Fri Aug 23 15:54:21 1991    (Eric Youngdale at [e-mail])

    * make-cc1.com: Fix bug where cplus-parse.y was always being passed
    through bison, whether it needed it or not.

Fri Aug 23 15:20:46 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * stmt.c (expand_end_case): Remove Aug 12 change.
    Convert index to nominal_type for subtraction.

Thu Aug 22 14:34:21 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * configure, config.gcc: Switch to all-dashes config names.

    * gnulib2.c [U_udivdi3, L_muldi3]: Define __clz_tab for longlong.h.

Thu Aug 22 00:28:29 1991  Torbjorn Granlund  (tege at zevs)

    * longlong.h: Rename BITS_PER_LONG to LONG_TYPE_SIZE.
    * longlong.h (__ibm032__): Define count_leading_zeros and umul_ppmm.
    * longlong.h: Define UMUL_TIME and UDIV_TIME for some CPUs.
    * longlong.h (__sparc__ umul_ppmm): Move two insn from end to the
      nops.  (Saves two insn.)
    * longlong.h (__sparc__ umul_ppmm): Rewrite in order to avoid
      branch, and to permit input/output register overlap.
    * longlong.h (__29k__): Remove duplicated udiv_qrnnd definition.
    * longlong.h (__29k__ umul_ppmm): Split asm instructions into two
      asm statements (gives better code if either the upper or lower
      part of the product is unused.
    * longlong.h: Mention UDIV_NEEDS_NORMALIZATION in description of
      udiv_qrnnd.
    * longlong.h (IBMR2): Add udiv_qrnnd.
    * longlong.h (add_ssaaaa, sub_ddmmss [C default versions]): Make __x
      `unsigned long int'.
    * longlong.h: Add `int' after `unsigned' and `long' everywhere.
    * longlong.h: Add ARM, i860 support.
    * longlong.h (sparc umul_ppmm): Use __asm__, not asm.
    * longlong.h (IBMR2 umul_ppmm): Refer to __m0 and __m1, not to m0
      and m1 (overlap between output and input operands did not work).
    * longlong.h: Add VAX, ROMP and HP-PA support.
    * longlong.h: Sort the machine dependent code in alphabetical order
      on the CPU name.
    * longlong.h: Hack comments.
    * longlong.h: Define BITS_PER_LONG to 32 if it's not already
      defined.
    * Define __BITS4 to BITS_PER_LONG / 4.
    * Don't assume 32 bit word size in "count_leading_zeros" C macro.
      Use __BITS4 and BITS_PER_LONG instead.
    * longlong.h (68k): Define add_ssaaaa sub_ddmmss, and umul_ppmm
      even for plain mc68000.
    * longlong.h: Clean up comments.
    * longlong.h: Don't use #elif.
    * longlong.h: Use __asm__ instead of asm.
    * longlong.h (sparc udiv_qrnnd): Make it to one string over several
      lines.
    * longlong.h: Preend __ll_ to B, highpart, and lowpart.
    * longlong.h: Move array t in count_leading_zeros to gnulib2.c
      Rename the array __clz_tab.
    * longlong.h (umul_ppmm [C variant]): Make __ul...__vh
      `unsigned int', and cast the multiplications.  This way
      compilers more easily can choose cheaper multiplication
      instructions.

Thu Aug 22 07:36:40 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * rtl.h: Declare simplify_relational_operation.

    * out-m88k.c (output_file_start): Put the `gcc2_compiled.' symbol
    in the data section.  Eliminates symbol translation problems with
    debuggers.

    Changes from Ron Guilmette:
    * toplev.c (compile_file): Use dwarfout_finish when done.
    * final.c (output_source_line): Use dwarfout_line.
    * dwarfout.c (dwarfout_finish): Rename from dwarfout_finalize.
    * tm-m88k.h (ASM_OUTPUT_DWARF_LINE, ASM_FILE_END): No need for
    dwarf specific actions.

Thu Aug 22 05:29:57 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * combine.c (can_combine_p): Don't combine if INSN has REG_RETVAL note.
    (try_combine): Similarly, don't combine if I3 has REG_LIBCALL note.

    * flow.c (propagate_block): Don't use variable PREV in
    nested blocks that shadows PREV at function level.
    If we handle this insn normally, arrange to scan any insns that
    were inserted in front of it for making auto-inc addressing.

    * integrate.c (save_for_inline_copying): Clear CONST_DOUBLE
    memory chain.

    * toplev.c (fatal_insn_not_found): Now that it is called in final.c
    when an insn doesn't match constraints, write different error
    message in that case.
    * genattrtab.c (write_attr_case): Call fatal_insn_not_found instead
    of abort when constrain_operands fails.

Thu Aug 22 05:29:09 1991  Matthew Self  (mself at next.com)

    * rtl.c (add_dependence): Uses of RTX_UNCHANGING_P should now be
    SCHED_GROUP_P.

Thu Aug 22 00:34:20 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * recog.c (offsettable_address_p): Always pass QImode to addressp.

Wed Aug 21 09:20:09 1991  Michael Meissner  (meissner at osf.org)

    * tm-decrose.h (LINK_SPEC): Allow -pic-none, -glue, -noshrlib
    switches.
    (LIB_SPEC): Add -L/usr/ccs/lib to get new 1.1 linker to use static
    libraries instead of shared libraries, since the shared library
    support has not yet been added.

Wed Aug 21 06:18:12 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * out-rs6000.c (print_operand, case 'Y', 'Z'): Fix typo in
    auto-inc case.
    * rs6000.md (movti): Add missing %U in memory cases.

    * tm-rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Indexed addresses are not
    valid for DImode and TImode.
    * out-rs6000.c (indexed_mem_operand): Deleted.
    (print_operand, case 'X'): Don't use indexed_mem_operand; check
    ourselves instead.
    * rs6000.md (movdi, movti): Don't check for indexed memory operands.

Tue Aug 20 16:02:41 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * sdbout.c (sdbout_parms): Handle parm passed in reg and living in
    pseudo that was optimized away.

Mon Aug 19 19:10:42 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * combine.c (simplify_comparision, case NEG): Can only convert
    (-a) < C to a > C if C is zero.

    * expmed.c (store_bit_field, extract_bit_field): Use WORD_MODE for
    mode of BITS_PER_WORD to avoid conflict with other use of variable
    named MODE.

    * cse.c (cse_insn): Don't make a REG_EQUAL note whose contents
    are a REG; the REG might have been eliminated.

    * reload1.c (reload_as_needed): Pass any CLOBBERs made when reloading
    an insn to `forget_old_reloads_1'.

Mon Aug 19 12:47:46 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * configure (m88k-luna): Rename alternative appropriately.

    * cse.c (simplify_relational_operation): Split out from ..._binary_...
    (fold_rtx): Use that function for relationsals.
    (simplify_binary_operation): Don't allow relationals.
    * combine.c (subst, gen_binary): Use simplify_relation_operation.
    * integrate.c (subst_constants): Likewise.
    * jump.c (jump_optimize): Likewise.

    * c-common.c (shorten_compare): Warn about unsigned >= 0.

Sun Aug 18 17:29:16 1991    (Eric Youngdale at [e-mail])

    * tm-vms.h (ASM_OUTPUT_EXTERNAL): Remove code to round the storage
    size up to a multiple of 4 bytes.

Sun Aug 18 15:35:27 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * dbxout.c (dbxout_parms):
    Handle parm passed in reg and living in pseudo that was optimized away.

    * function.c (init_function_start): Give decl_printable_name both args.

    * expr.c (compare_from_rtx):
    Don't change to unsigned if too wide for host int.
    * cse.c    (fold_rtx): Use mode_arg0 to simplify comparison ops.
    Update mode_arg0 when we look at value of cc0.

    * cse.c (cse_insn): Really don't record bitfield destinations
    unless source is constant which fits.
    But pre-truncate other constants.

    * config.subr: Allow $os to be empty.

    * function.c (lookup_static_chain): Check for 0 before inline function.

    * config.subr (pc532, minix): New alternatives.

    * configure (editing Makefile): Use cross-make.
    * Makefile.in (install-cross): Change dep to install-gnulib.

Sat Aug 17 17:18:05 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * All cplus-* files: Change the representation of the C++
    inheritance lattice for types.  There is no longer such a thing as a
    classtype_variant.  Instead, types all have their own lattices
    accessed via their CLASSTYPE_ASSOC field.

    * cplus-tree.h (lang_type): Delete fields OFFSET,
    MAIN_CLASS_VARIANT, NEXT_CLASS_VARIANT, VIA_PUB_OR_VIRT.
    Rename field AS_ID_LIST to ID_AS_LIST, since it's a list.
    (CLASSTYPE_AS_ID_LIST): Renamed to CLASSTYPE_ID_AS_LIST.
    Add field ASSOC_AS_LIST, which is a TREE_LIST whose TREE_VALUE is
    the assoc for the type.
    (CLASSTYPE_VIA_*, SET_CLASSTYPE_VIAS): Deleted.
    (CLASSTYPE_OFFSET*): Deleted.
    (CLASSTYPE_N_BASECLASSES): Now uses type's assoc.  TYPE_BASETYPES
    field is unused.  Next change will make TYPE_BASETYPES hold the
    assoc field.
    (CLASSTYPE_VBASE_SIZE): Use slot in TYPE_LANG_SPECIFIC instead of
    sneaking it into the TREE_TYPE field of the basetypes.

    (ASSOC_TYPE): Deleted.  Now use ASSOC_VALUE everywhere.
    (ASSOC_{BASETYPE,BASETYPES}): New macros.  Both are operations on
    assocs and return assocs.
    (CLASS_ASSOC_BASETYPE): New macro.  This performs roughly the same
    function that CLASSTYPE_BASECLASS used to, but it retains no assoc
    info in the type it returns.
    (ASSOC_NEXT_ASSOC): New macro used for traversing assoc chains built
    up by search routines.
    (ASSOC_VIA_{PUBLIC,VIRTUAL}): New macros for accessing inheritance
    information.  CLASSTYPE_VIA_{PUBLIC,VIRTUAL} no longer used.
    (ASSOC_CID): New macro.

    (DECL_ANON_UNION_ELEM): Deleted.  Now anonymous union decls are
    distinguished as FIELD_DECLs with NULL DECL_NAMEs and UNION_TYPE
    types.

    (DERIVED_FROM_P): New macro.  Change calls that testing inheritance
    relationships (get_base_type and get_base_distance) to use this macro.

    * cplus-type2.c (basetype_or_else): Change interface to use/return an
    assoc instead of a type.  Change name to base_assoc_or_else.

    * cplus-tree.c (build_classtype_variant): Deleted.
    (copy_type_lang_specific): Deleted.
    * all cplus-* files: Everything that used to use CLASSTYPE_OFFSET on
    types now uses ASSOC_OFFSET on assocs.

    * cplus-class.c (propagate_basetype_offsets): Change interface to use
    assocs instead of types.  Change name to propagate_assoc_offsets.
    * cplus-search.c (get_base_type): Ditto; name changed to
    get_base_assoc.

    * cplus-cvt.c (convert_pointer_to): Change interface to use an assoc
    instead of a type.
    (convert_pointer_to_vbase): Ditto.
    * cplus-call.c (build_field_call): Ditto.
    * cplus-class.c (get_vfield_offset): Ditto.
    (build_method_call): Ditto.
    (maybe_fixup_vptrs): Ditto.
    * cplus-search.c (get_first_matching_virtual): Ditto.
    (get_virtuals_named_this): Ditto.
    (tree_needs_constructor_p): Ditto.
    (get_virtual_destructor): Ditto.
    (tree_has_any_destructor_p): Ditto.
    (get_baselinks): Ditto.
    (lookup_{field,fnfields}): Ditto.  Also, use ASSOC_VBASE_MARKED
    instead of CLASSTYPE_MARKED2 to mark virtual basetypes that have
    been visited.
    (build_vbase_vtables_init): Ditto.
    ({build,free}_mi_matrix): Ditto.
    * cplus-init.c (expand_aggr_init_1): Ditto.
    (expand_aggr_vbase_init_1): Ditto.
    (build_virtual_init): Ditto.
    * cplus-class.c (build_class_init_list): Rewritten to build list with
    assoc entries instead of types.  Also, use new macro
    ASSOC_BASEINIT_MARKED instead of CLASSTYPE_MARKED6.
    (finish_base_struct): New argument ASSOCS is the list of assocs that
    describe the basetypes of T.

    * cplus-tree.c (make_lang_type): Always initialize
    CLASSTYPE_VBASE_SIZE to integer_zero_node.  To test if a class has
    virtual baseclasses, test CLASSTYPE_VBASECLASSES, not
    CLASSTYPE_VBASE_SIZE.

    * cplus-class.c (finish_struct): Rewritten to use assocs instead of
    types where appropriate.

    * cplus-search.c (get_base_distance): Change interface to use assocs
    or types.  Also, PATH_PTR argument is now an assoc chain, not a
    TREE_LIST.  Algorithm to find leftmost path is now more efficient.
    (compute_visibility): Uses assoc chain instead of TREE_LIST of
    types.
    (recursive_bounded_basetype_p): New function.
    (dfs_walk, dfs_* functions): Change to be called with assocs instead
    of types.
    (breadth_first_search, all bfs_*): Ditto.
    cplus-tree.c (reverse_path): New function.  Like nreverse, but works
    on assoc chains.

    * cplus-class.c (build_vtable, prepare_fresh_vtable,
    modify_vtable_{entries,entry},): Change interfaces to use assocs
    instead of types.  Use macro ASSOC_VTABLE_PATH_MARKED on the assocs
    instead of CLASSTYPE_MARKED3.  Use macro ASSOC_NEW_VTABLE_MARKED on
    the assocs instead of CLASSTYPE_MARKED4.

    * cplus-dbxout.c: Now needs to know more about assocs.  When assocs
    are put in the TYPE_BASETYPEs field, it should not need to know
    about lang_type.

    * cplus-decl.c (xref_tag): Rewritten to build proper assoc lists.  No
    longer builds basetype lists.
    (finish_function): Make `flag_no_inline' really take effect.

    * cplus-tree.c (make_assoc): Changed for new assoc structure.  The
    fields in assocs are now: VALUE (pointer to TYPE that this assoc is
    for), OFFSET (the byte offset of this basetype in the whole object),
    VTABLE (the virtual function table that should be used to initialize
    objects controlled by this assoc), VIRTUALS (the virtual functions
    to use for initializing VTABLE), BASETYPES (a TREE_VEC of basetypes
    that this assoc has, or NULL_TREE if none), NEXT_ASSOC (a temporary
    slot used to point to the next assoc in an assoc chain),
    VIA_{PUBLIC,VIRTUAL} bits saying whether this assoc is a basetype of
    its parent via public or virtual inheritance.

    * cplus-ptree.c (print_lang_type): Modified as necessary to cope with
    new inheritance structure.

    * cplus-search.c (get_base_type_1): This function was unused and
    wrong.  Deleted.

    * cplus-tree.c (layout_basetypes): Take new arg ASSOCS.  Layout the
    basetypes my modifying the assocs, not the types.
    (layout_vbasetypes): Ditto.

    * all cplus-* files: Removed dead code, unused variables, and change
    asserts where appropriate.

    * all cplus-* files: DECL_VIRTUAL_P is no longer used as a truth test
    for whether or not a function is virtual.  Use a test for non-NULL
    DECL_VINDEX instead.

Sat Aug 17 15:16:40 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * function.h (inline_function_decl): Declare it.
    * integrate.c: Include function.h; don't declare var here.

    * rtl.h (regno_reg_rtx): Declare it.

    * stmt.c (expand_end_case):
    When filling labelvec from case range, avoid overflow in i.

Fri Aug 16 23:06:37 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * c-typeck.c (build_binary_op_nodefault):
    Take out warning added by recent changes.

Fri Aug 16 22:00:09 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * function.c (inline_function_decl): New var.
    (lookup_static_chain): Decl is local if context is function being
    inlined.
    * integrate.c: Remove partially-completed previous change.
    (expand_inline_function): Set inline_function_decl.

Fri Aug 16 21:41:10 1991  Michael Tiemann  (tiemann at pogo.gnu.ai.mit.edu)

    * a29k.md (insv,extv): Changed POS / SIZE to POS / 8, since high
    order bit of BP selects half-word position for half-word ops.

Fri Aug 16 18:52:35 1991  Jim Wilson  (wilson at sphagnum.cygnus.com)

    * combine.c (distribute_links): Only put link on new insn if the
    insn uses the register.  If first find an insn that sets the
    register but does not otherwise use it, then drop the link.

    * combine.c (distribute_links): Strip off SUBREG, ZERO_EXTRACT,
    etc. from the destination of the set before passing it to
    reg_mentioned_p and reg_referenced_p.

Sat Aug 16 17:02:53 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * cplus-pt.c (uses_template_parms): Run loop over _EXPR nodes from
    TREE_CODE_LENGTH-1 to 0, not from TREE_CODE_LENGTH.

    * cplus-decl.c (grokfndecl): Change `==' to `=' in assignment to
    `raises'
    (finish_decl): If FLAG_PIC is nonzero, leave initialized data in
    common space.

Fri Aug 16 13:13:11 1991  James Van Artsdalen  (james at bigtex.cactus.org)

    * reg-stack.c (current_function_returns_real): New variable.
    (reg_to_stack): Set it.
    (stack_reg_life_analysis): Use it.
    (emit_pop_insn): Return the new insn.
    (convert_regs): Pop any stack regs live at the end of the last basic
    block.

Fri Aug 16 16:16:45 1991  Michael Tiemann  (tiemann at pogo.gnu.ai.mit.edu)

    * tm-sparc.h (SELECT_SECTION): Don't put relocatable values into
    text space if generating position-independent code.

Fri Aug 16 16:00:30 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * protoize.c (__flsbuf): Decl deleted; no need.
    [ultrix]: Include string.h, not strings.h.

    * function.c (instantiate_virtual_regs_1): Bug adding NEW to addr of X.

Fri Aug 16 08:51:25 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * expr.c (expand_expr, case ABS_EXPR, MIN_EXPR, MAX_EXPR): Don't
    allow TARGET to be a hard reg because evaluating the comparison
    might clobber it.

Thu Aug 15 23:38:04 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * tm-m68k.h (PRINT_OPERAND): Use asm_fprintf to print immed prefix.

Thu Aug 15 23:36:12 1991  Micheal Tiemann  (tiemann at pogo.gnu.ai.mit.edu)

    * cplus-decl.c (finish_enum): Remove last traces of Wood's mistaken
    changes for tag handling in C++.
    * cplus-class.c (finish_struct): Ditto.

Tue Aug 13 06:12:18 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * jump.c (find_cross_jump): When avoiding CALL_INSNs, don't
    return a CODE_LABEL as a cross-jump point; use next_real_insn instead
    of next_nonnote_insn.

    * fold-const.c (optimize_bit_field_compare, merge_component_reference):
    Use mode_for_size to get mode for word; don't use SImode.
    * tree.c (build_index_type, build_index_2_type): Don't use SImode;
    get mode of SIZETYPE instead.

    * optabs.c (emit_cmp_insn): Use type of int instead of SImode for
    return from memcmp and bcmp.

Mon Aug 12 17:54:55 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * stmt.c: Include recog.h.
    * stmt.c (expand_end_bindings): Expect abort to return void.
    (expand_end_case): Give tablejump whatever mode it wants.

    * integrate.c (integrate_type): New function.
    * c-typeck.c (build_binary_op_nodefault): Rewrite last change.

    * Makefile.in (install): Indirect through INSTALL_TARGET.
    (install-native): New name for old install target.
    (INSTALL_TARGET): New variable.
    * cross-make (INSTALL_TARGET): Override it.

Mon Aug 12 17:25:48 1991  Michael Meissner  (meissner at osf.org)

    * out-mips.c (toplevel, override_options, siginfo): If the OSF/1
    SIGINFO signal is provided, invoke siginfo handler, which prints
    which file is being compiled, and runs ps on the compiler and it's
    parent.

    * make-decrose (CC, OLDCC): Define CC and OLDCC to be the same, so
    that tests within Makefile.in work as expected.
    (LIB2FUNCS_EXTRA): Put osf-main in the gnulib2 portion of the
    library, instead of the gnulib1 portion.

Mon Aug 12 16:31:47 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * explow.c (expr_size): Fix typo.

Mon Aug 12 14:27:31 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * expr.c (expand_expr, case COND_EXPR): Fix typo in comment.
    In the singleton code, don't accept a hard register as a target if
    we are going to store into it before testing the condition because
    that evaluation may involve a subroutine call which might clobber it.

    * rtl.h (SCHED_GROUP_P): Fix typo in definition.

Mon Aug 12 08:01:01 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * jump.c (find_cross_jump): Look at REG_EQUIV notes in addition to
    REG_EQUAL notes.
    (do_cross_jump): Remove REG_EQUAL or REG_EQUIV notes present on only
    one branch of the cross-jump so we don't get confused by them if we
    cross-jump again.

Mon Aug 12 01:44:26 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * unroll.c (unroll_loop): When naively unrolling loops, if the last
    jump insn is an unconditional jump, and it does not jump to the loop
    top, then it must be copied with the rest of the loop body.

    * rtl.h: Clean up documentation for uses of volatil and in_struct
    fields of an rtx.
    * gcc.texinfo: Document macros CONST_CALL_P, LABEL_PRESERVE_P, and
    SCHED_GROUP_P. Clean up documentation for uses of used, in_struct,
    and unchanging fields of an rtx.

    * final.c (final_scan_insn):  In the ASM_OUTPUT_LOOP_ALIGN code,
    must verify that next exists before checking whether it is a label.

Sun Aug 11 16:46:17 1991  James Van Artsdalen  (james at bigtex.cactus.org)

    * i386.md (cmpstrsi): Enable it.  Now uses REG as output, not cc0.
    Old cc0-output pattern remains for combining cmpstrsi & test pairs.

Sun Aug 11 15:52:33 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * dbxout.c (dbxout_symbol): Handle var-length array with reference.

    * c-decl.c (xref_tag): Copy default mode from unsigned_type_node.
    * explow.c (expr_size): Get it from size_type.
    * reload1.c (allocate_reload_reg): No need to validate mode of
    reload_in if that value is a const_int.

    * expr.c (expand_builtin): Get value mode properly, for memcmp.

Sun Aug 11 15:52:33 1991  Jim Wilson  (wilson at cygint.cygnus.com)

    * dbxout.c (dbxout_symbol): DECL_ASSEMBLER_NAME is a tree, not a
    character string, so call IDENTIFIER_POINTER before printing it.

    * fold-const.c (fold): When converting foo++ == CONST to ++foo ==
    CONST + INCR, the plus must have the same TREE_TYPE as the
    postincrement, not the comparison.

Sat Aug 10 22:58:01 1991  Michael Meissner  (meissner at osf.org)

    * mips.md (extendqihi2 define_split): Use SImode on shifts rather
    than HImode, and turn result register into SImode as well.

Sat Aug 10 21:00:59 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * calls.c (emit_call_1): New argument is_const.  Set CONST_CALL_P
    true for the call_insn if is_const is true.
    (expand_call): Pass is_const to emit_call_1.
    * expr.c (emit_library_call): Pass no_queue to emit_call_1.
    Document that no_queue means that the function call is const.
    * local-alloc.c (validate_equiv_mem):  Don't invalidate memory for
    const calls.
    * rtl.h: Update comments describing uses of rtl unchanging and
    in_struct bits.
    (CONST_CALL_P): New macro.  True for a call_insn if it is calling
    a const function.  Uses the unchanging bit.
    (SCHED_GROUP_P): New macro.  True for an insn if it must be
    scheduled together with the previous insn.  Uses the in_struct bit.
    * sched.c: Rewrite to use new SCHED_GROUP_P macro insead of
    RTX_UNCHANGING_P.
    (sched_analyze): Rewrite to use new CONST_CALL_P macro.

    * sched.c (schedule_block): Don't schedule a block with a volatile
    or traditional asm insn.  There is currently no code to correctly
    handle dependencies for them.

    * combine.c (distribute_links): Fix typo in comment.

Sat Aug 10 18:42:22 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * emit-rtl.c (operand_subword): Replace explicit SImode references
    with mode for BITS_PER_WORD bits.

Sat Aug 10 14:17:08 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * calls.c (expand_call): Handle ARGS_GROW_DOWNWARD.

    * ns32k.md (call_value): Consistently realize function is operand 1.

    * cccp.c (do_include): Get current dir from nominal_fname.

    * expr.c (expand_builtin): Give cmpstr* a target in the mode it wants.
    * optabs.c (expand_cmp_insn): Likewise.

Fri Aug  9 09:59:27 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * dwarfout.c (output_symbols_for_block): Fix typo in iterating over
    subblocks.

    * make-m88k{,dgux,luna}: Eliminate m88k-trace.asm.
    * tm-m88k.h, out-m88k.c: Make -mbig-pic a synonym for -fPIC.
    Delete -mtrace-function.

    * Makefile.in (CROSS_TOOLS): New variable.
    (gnulib1.null, gnulib2.ready): Depend on CROSS_TOOLS.
    (gnulib1.null): Use $(AR) $(AR_FLAGS).
    * cross-make (CROSS_TOOLS): Define as install-cross-tools.

Fri Aug  9 15:21:16 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * optabs.c (emit_cmp_insn): Expect cmpstr* to have result operand.
    Test the sign of the result we get.
    i386.md needs to be changed.

Fri Aug 9 11:09:22 1991    (Eric Youngdale at [e-mail])

    * make-cc1.com: Fix bug where the wrong program was being run to
    generate insn-attrtab.c, and, add DEBUG option, so that images can be
    linked to run under the debugger.

Fri Aug  9 06:42:15 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * genemit.c (gen_split): Add "_fail:" label here too.

    * tree.h (STRIP_NOPS): Define macro here; add CONVERT_EXPR to list
    of operations to possibly ignore.
    * fold-const.c (STRIP_NOPS): Not here.
    * expr.c (strip_nops): Delete function.
    (string_constant): Use STRIP_NOPS macro instead of strip_nops function.

    * global-alloc.c (expand_preferences): New function.
    (global_alloc): Call it.

Fri Aug  9 01:19:26 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * optabs.c (emit_cmp_insn): Correct typo in spacing.

    * unroll.c: Correct typo in comment.  Document that unrolling a
    loop by a multiple of the number of memory accesses is a win.
    (unroll_loop): New variable last_loop_insn, points to the last
    real insn in the loop, which will either be a jump or a barrier.
    Use last_loop_insn instead of assuming that PREV_INSN (loop_end)
    is that last real insn in the loop.
    Standardize comments printed to loop dump file when we can't
    unroll a loop, so that they all start with "Unrolling failure".
    No longer assumes that the insn before the backward jump is a
    compare unless HAVE_cc0.  If not HAVE_cc0, then must copy this
    insn, and for loop_iterations == 1 case, can not delete this insn.
    If last_loop_insn is not a JUMP_INSN or BARRIER, then do not
    unroll the loop.
    (precondition_loop_p): Fail if loop_iteration_var is not live
    before loop_start.
    (copy_loop_body): Rewrite obsolete and misleading comment
    concerning the splitting of address givs.
    (back_branch_in_range_p): Correct typo in comment.  No longer
    assumes that PREV_INSN (loop_end) is the backward branch at the
    end of the loop.
    (fold_rtx_mult_add):  Rewrite to use simplify_binary_operation.
    (iteration_info): Fail if iteration variable is larger than
    HOST_BITS_PER_LONG, or if it does not have an integer mode.
    (find_splittable_givs): If an address giv was combined with
    another address giv, then we can only split the first giv if the
    second was actually reduced.
    (loop_iterations): New variable last_loop_insn, use instead of
    assuming that the last jump insn if PREV_INSN (loop_end).
    Correct typo in comment.

Thu Aug  8 17:57:41 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * Makefile.in (gnulib1.null): Use *_FOR_TARGET variables.
    (TARGET_TOOLPREFIX): New variable.
    (AR_FOR_TARGET, AR_FOR_TARGET_FLAGS): New variables.
    (RANLIB_FOR_TARGET, RANLIB_TEST_FOR_TARGET): New variables.
    * cross-make: New file.
    * configure: Insert cross-make into Makefile.

    * tm-m68k.h (LEGITIMIZE_ADDRESS): Copy address before changing it.
    (COPY_ONCE): New macro, subroutine for LEGITIMIZE_ADDRESS.

    * toplev.c (main): Accept -g with warning if not supported.

    * Makefile.in (install-cross-tools): Do nothing unless have gcc-cross.
    (gnulib2.ready): Depend on install-cross-tools.

Thu Aug  8 14:34:53 1991  Ken Raeburn  (raeburn at watch.com)

    * expr.c (c_strlen): New function; determines strlen of string const.
    (expand_builtin, cases BUILT_IN_STRCMP, BUILT_IN_STRCPY): Call it
    instead of relying on TREE_STRING_LENGTH.  For strcmp, optimize
    cases where two lengths are available, if at least one of them is
    constant.
    (expand_builtin, case BUILT_IN_MEMCMP): If alignment test fails, and
    function was really BUILT_IN_STRCMP, delete length parameter before
    expanding call.

    * tree.h (enum built_in_function): Added BUILT_IN_STRLEN.
    * c-decl.c (sizet_ftype_string): New variable, for strlen prototype.
    (init_decl_processing): Set it, and declare strlen and
    __builtin_strlen as built-in functions.  Deleted variable `decl'
    since it was only assigned to, never read.
    * expr.c (expand_builtin, case BUILT_IN_STRLEN): Implement it.

    * cplus-decl.c (sizet_ftype_string, init_decl_processing): Copy
    changes from c-decl.c.  Also initialize const_string_type_node.

Thu Aug  8 14:34:53 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * c-decl.c (pushdecl): Just warn if trad. extern type is temporary.

Wed Aug  7 15:16:55 1991  Jim Wilson  (wilson at sphagnum.cygnus.com)

    * local-alloc.c (block_alloc): When converting a SCRATCH rtx to a
    REG rtx, must clear the `used' bit.

Tue Aug  6 14:17:09 1991  Jim Wilson  (wilson at wombat.gnu.ai.mit.edu)

    * stmt.c (expand_start_bindings): Fix typo in comment or spacing.
    * rtlanal.c (reg_referenced_between_p): Likewise.
    (reg_set_last): Likewise.
    * loop.c (make_loop_jump): Likewise.
    * longlong.h (UDIV_NEEDS_NORMALIZATION): Likewise.
    * local-alloc.c (update_equiv_regs): Likewise.
    * global-alloc.c (hard_reg_copy_preferences): Likewise.
    * fixcpp: Likewise.
    * tm-m68k.h (CONDITIONAL_REGISTER_USAGE): Likewise.
    * combine.c (reg_significant): Likewise.
    * calls.c (expand_call): Likewise.
    * cplus-tree.c (build_cplus_new): Likewise.

    * function.c (fixup_var_refs_insns): When emitting a move insn,
    don't put it between a CALL_INSN and its USE insns as this will
    break sched and reorg.  Instead, put it before the USE insns.

    * combine.c (subst): Convert (ior (ashift A CX) (lshift A CY)) where
    CX+CY equals the mode size to (rotate A CX).

    * out-sparc.c (emit_move_sequence): For DImode constants, can not
    create a temporary register to hold the high part.
    (output_scc_insn): When in a delay slot, verify that NEXT_INSN (insn)
    really is the next insn.

    * sparc.md: Fix support for DImode constants.  Two new patterns
    added, one for high:DI operators and one for lo_sum:DI operators.
    (*extend*): Rework these patterns.  Don't accept memory input
    operands in the define_expands, as this gives better code.
    Delete patterns for combining two loads into a load and move;
    these are obsoleted by combiner improvements.
    Delete define_splits for splitting these obsolete patterns.
    (one_cmplsi2): Can not accept general_operand destinations, only
    register destinations.

    * tm-sparc.h (STACK_POINTER_OFFSET): Explain how value is derived,
    and compute in terms of another macro.
    (STRUCT_VALUE_OFFSET): Explain how value is derived.
    (FIRST_PARM_OFFSET): Fix typo in comment.

    * expr.c (MOVE_RATIO): Check for HAVE_movstrdi.
    (emit_block_move): Add code to use HAVE_movstrdi if present.
    (emit_push_insn): Likewise.

    * final.c (final_scan_insn): When insn fails constraint check,
    call fatal_insn_not_found instead of just aborting to make
    debugging easier.

    * tree.c (integer_all_onesp): Rewrite code to avoid shift by
    HOST_BITS_PER_INT which is undefined according to ANSI.  Also,
    abort for precision values not handled, i.e. those greater than
    twice times HOST_BITS_PER_INT.

Tue Aug  6 14:05:42 1991  James Van Artsdalen  (james at bigtex.cactus.org)

    * i386.md (seq,sne): Use setb/setnb mnemonics instead of setc/setnc:
    GAS doesn't understand the latter yet.

Tue Aug  6 13:01:53 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * Makefile.in (install-common): Use -d, not -f, for tooldir/bin.

Tue Aug 6 10:37:02 1991    (Eric Youngdale at [e-mail])

    * make-cc1.com: Replacement file.  This new version can build cc1plus
    and cc1obj in addition to cc1 (known on VMS systems as gcc-cc1plus.exe,
    gcc-cc1obj.exe and gcc-cc1.exe respectively).

Tue Aug  6 06:30:09 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * cse.c (canon_hash): If a REG in an operand is equivalent to a
    constant, hash as if we had the constant.
    (exp_equiv_p): See if a REG and constant are equivalent.

Tue Aug  6 03:59:16 1991  Ken Raeburn  (raeburn at watch.com)

    * cplus-tree.c (make_deep_copy): Handle PARM_DECLs.

    * cplus-init.c (build_offset_ref): Use DECL_CHAIN, not TREE_CHAIN
    when trying to determine if a function is unique.

    * cplus-decl.c (start_decl): When constructing a decl tree for a
    function template, copy last_function_parms to permanent storage,
    and save it as the function argument list.  Call build_lang_decl
    instead of build_decl, instead of duplicating the extra work it does.
    Set `overloaded' flag to 1.  Call dont_forget_overload, so the
    template decl won't get discarded.
    Also deleted some commented-out code.

    * cplus-pt.c (uses_template_parms, cases VAR_DECL, FUNCTION_DECL):
    Give a warning if template parms are only used in places where they
    can't be resolved (e.g., return types or global or fixed-class
    variable types).
    (tsubst): Preserve storage qualifiers on type field, and pass it to
    layout_type if it has changed.
    (tsubst, case TEMPLATE_TYPE_PARM):  Preserve storage qualifiers.
    (tsubst, case INTEGER_TYPE): Process min and max fields, if needed.
    (tsubst, case FUNCTION_DECL): Process arguments and result fields.
    (tsubst, case PARM_DECL): New branch.  Handle parm list for
    FUNCTION_DECL nodes.
    (tsubst, case TREE_LIST): Copy TREE_PARMLIST flag from source.
    Don't bother processing TREE_CHAIN field if it is void_type_node.
    (tsubst, cases POINTER_TYPE, REFERENCE_TYPE): Preserve storage
    qualifiers.
    (tsubst, case FUNCTION_TYPE): Eliminate recursion for simple common
    cases for values and context fields.  Preserve storage qualifiers.
    (tsubst, default case): Print node type of correct variable in error
    message.
    (instantiate_template): Set function_maybepermanent_obstack to
    permanent, along with the others, and restore old value after tsubst
    call.  This permits the PARM_DECL case to work.

Mon Aug  5 22:44:51 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * cplus-tree.h (struct pending_inline): Add new field `deja_vu' to
    mark if this pending_inline has already been seen.
    * cplus-lex.c (do_pending_inlines): Set DEJA_VU when seen.
    * cplus-lex.c (reinit_parse_for_method, cons_up_default_function):
    Initialize DEJA_VU to 0.
    * cplus-decl2.c (mark_inline_for_output): Don't add DECL to
    PENDING_INLINES if it's already been seen.
    * cplus-pt.c (instantiate_template): Initialize DEJA_VU to 0.

    * cplus-method.c (do_inline_function_hair): Change some assignments
    to asserts, since they seem to be copying values that are already
    there.

Mon Aug  5 22:23:34 1991  Michael Meissner  (meissner at osf.org)

    * genemit.c (gen_expand, main): Change FAIL macro to be a simple
    goto _fail, and initialize the return value to 0 in the prologue.
    This avoids a useless warning message that the MIPS C compiler
    gives if a return is encountered inside of a do { ... } while (0).

Mon Aug  5 21:28:06 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * cplus-xref.c (GNU_xref_file): Treat VMS like USG.

    * optabs.c (expand_binop): In libcall, use actual mode of op1.

    * c-typeck.c (build_binary_op_nodefault):
    In signed versus unsigned compare warning, note promotions of unsigned.

    * c-parse.y (simple_if): Allow error instead of lineno_labeled_stmt.
    (if_prefix): New subroutine of simple_if.

    * gnulib2.c (__ashldi3, __ashrdi3, __lshldi3, __lshrdi3):
    Accept second arg as int, not long long.

Sun Aug  4 22:31:53 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * cplus-except.c (cplus_expand_start_except): Set up variables
    `current_exception_name_as_rtx' and `current_exception_parms_as_rtx'.
    These variables are used to factor out calls to `expand_assignment'
    and allow instead calls to `emit_move_insn', which takes about 1/2x
    the compilation time when called directly.
    (various places): Use `store_expr' instead of `expand_assignment'
    when reasonable.
    (cplus_expand_reraise): Take advantage of above changes.
    (setup_exception_throw_decl): This is where *_as_rtx variables are
    initialized.

    * cplus-input.c (getch): Rewritten slightly to help GNU C optimizer.
    * cplus-lex.c (yylex): In IDENTIFIER case, pre-test condition that
    `getch' tests, and call `getc' directly when possible.  This cuts
    calls to `getch' by a factor of 4 for typical C++.

    * cplus-class.c (add_virtual_function): Memoize the first 256
    virtual function table index nodes (0x80000001, 0x80000002, etc.).
    (finish_struct): Use `size_int' instead of `build_int_2' when we
    know the int will not be changed in place (such as the size value of
    virtual function tables).
    * cplus-decl2.c (finish_table): Same change as for `finish_struct'.
    * cplus-tree.c (layout_basetypes): Same change.
    * cplus-decl.c (init_decl_processing): Use `size_int' to initialize
    `size_zero_node' and `size_one_node'.

    * cplus-tree.h (TREE_OVERLOADS_ARROW): Define this.
    * cplus-parse.y (operator_name): Set TREE_OVERLOADS_ARROW where
    appropriate.
    * cplus-type2.c (build_x_arrow): Use TREE_OVERLOADS_ARROW and
    reorganize the logic for better speed.
    * cplus-ptree.c (print_lang_type): Print when TREE_OVERLOADS_ARROW.

Sun Aug  4 16:44:54 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * rtlanal.c (reg_referenced_p): Properly handle ASM_OPERANDS.

    * cse.c (cse_insn): When recording this_insn_cc0, build a COMPARE
    rtl if SRC is a floating-point value.

Sun Aug  4 16:16:11 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * fold-const.c (fold): Don't compute shift with negative count.
    * cse.c (simplify_binary_operation): Likewise.

Sat Aug 3 15:57:55 1991    (Eric Youngdale at [e-mail])

    * tm-vms.h (ASM_OUTPUT_EXTERNAL): Modify to always write the
    correct size of the data object, if it is known.
    (ASM_OUTPUT_COMMON): Modify to select the const or the data section
    as appropriate.  This definition shadows a definition in tm-vax.h
    (const_section): Change data type to void.

Sat Aug  3 15:02:40 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * integrate.c (save_for_inline_copying): Clear constant pool after
    saving constants into the insns.

    * expr.c (expand_builtin, case BUILT_IN_MEMCPY): Ensure items
    passed to emit_block_move are valid MEMs.

    * recog.c (offsettable_address_p): Don't change INTVAL of a CONST_INT
    within an address; that CONST_INT is likely shared and may be used
    elsewhere in the address.

    * stmt.c (expand_end_stmt_expr): Don't try to copy result to
    REG; it might be BLKmode.

    * reload.c (MATCHES): Don't consider two things equal if they have
    side effects.

    * combine.c (try_combine): When replacing SET_DEST inside a PARALLEL,
    don't replace it with something that has a side effect.

Sat Aug  3 13:17:53 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * c-decl.c (init_decl_processing):
    If traditional, omit builtins with names that don't start with _.
    Also omit if not optimizing.

    * Makefile.in (combine.o, emit-rtl.o, expr.o, final.o, tree.o):
    Depend on gvarargs.h.

Fri Aug 2 11:00:10 1991    (Eric Youngdale at [e-mail])

    Merge some VMS changes from 1.39 that did not make it to 2.0.
    These changes will prohibit GCC from addressing external symbols with
    indirect addressing modes, to be compatible with sharable
    image libraries under VMS.

    * tm-vms.h: Define NO_EXTERNAL_INDIRECT_ADDRESS, define
    ENCODE_SEGMENT_INFO to make use of hook in varasm.c

    * tm-vax.h: Provide alternative definitions of INDIRECTABLE_CONSTANT_P,
    INDIRECTABLE_CONSTANT_ADDRESS_P, and INDIRECTABLE_ADDRESS_P, which
    are used when NO_EXTERNAL_INDIRECT_ADDRESS is defined.  Also, define
    INDIRECTABLE_CONSTANT_ADDRESS_P.   Modify definitions of
    GO_IF_NONINDEXED_ADDRESS, and GO_IF_LEGITIMATE_ADDRESS to work with
    either alternative.

Fri Aug  2 21:54:55 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * loop.c (check_dbra_loop): Fix typo in arg to single_set.

    * reload1.c (choose_reload_regs): Verify that all registers in a
    group still contain the desired value.
    (emit_reload_insns): Set reg_reloaded_contents and reg_reloaded_insn
    for all registers in a group.

    * combine.c (set_significant): Handle a complex SET_DEST correctly.

Fri Aug  2 17:12:24 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * tree.c (build_array_type): Make pointer type before array type.

    * Makefile.in (install-common): Never install gcc if gcc-cross exists.

Fri Aug  2 14:58:42 1991  Michael Meissner  (meissner at osf.org)

    * make-mips (CC, OLDCC): Comment why we need to define CC and OLDCC
    to get around fixed size table complaints in the MIPS compiler.

Fri Aug  2 14:08:01 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * configure (writing VPATH definition):  Avoid temp file.

    * tm-i860.h (MAX_PARM_BOUNDARY): Defined.
    (GO_IF_LEGITIMATE_ADDRESS): Add parens around & operator.
    (ASM_OUTPUT_REG_PUSH, ASM_OUTPUT_REG_POP): Use sp, not r3 (that's fp).
    * i860.md (movsf): Don't reload high address part if already loaded.
    (cmplesf, cmpledf, cmpgesf, cmpgedf): Set CC_NEGATED; swap operands.
    * out-i860.c (strict_single_insn_op_p):
    Fix criterion for loading high half.
    (output_load_address): #if 0 since not used.

Fri Aug  2 01:46:39 1991  James Van Artsdalen  (james at bigtex.cactus.org)

    * i386.md (swapdf): Don't condition on TARGET_387.
    (bit set/complement/clear insns): Don't use if -m486.
    (bit test insns): Don't allow a MEM operand.

Thu Aug  1 19:05:31 1991  Matthew Self  (mself at next.com)

    * local-alloc.c (block_alloc):  Record regs_live_at for last insn
    in basic block too.  Otherwise REG_UNUSED regs may overlap hard
    regs set in the last insn of the basic block.

Thu Aug  1 19:02:57 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * emit-rtl.c (gen_rtx): Don't return frame_pointer_rtx (e.g.) if
    mode is not Pmode.

    * emit-rtl.c (operand_subword): Don't write explicit divide by 0;
    some (broken) compilers give errors for it.

    * m68k.md (udivhi3): One pattern had constraint of "d" with
    const_int_operand.
    (FPA insns): Operand 1's constraints allow memory and constants, but
    the predicate is register_operand; change to general_operand.

Thu Aug  1 13:41:47 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * cplus-lex.c (do_pending_inlines, process_next_inline): Zero out
    the DECL_PENDING_INLINE_INFO field after processing it.
    (store_pending_inline): Don't delay processing a virtual function,
    since it needs to be processed in case the virtual function table is
    needed.

    * cplus-decl2.c (mark_inline_for_output): If DECL has pending inline
    info, cause it to be processed.

    * cplus-pt.c: Removed extraneous declaration of `permanent_obstack'.
    Also, added comment for `reinit_parse_for_template'.

    * cplus-typeck.c (mark_addressable): For FUNCTION_DECL case, also
    test DECL_PENDING_INLINE_INFO.

Thu Aug  1 13:26:12 1991  Michael Meissner  (meissner at osf.org)

    * mips-tfile.c (main): If input file is not specified, use the same
    file for both input and output.  If renaming output file and rename
    fails, copy the file.
    (free_multiple_pages): New function.

    * tm-decrose.h (ASM_FINAL_SPEC): Add this to call mips-tfile if
    using the MIPS assembler.

    * tm-mips.h (ASM_FINAL_SPEC): Add this to call mips-tfile unless
    using gas.
    (TARGET_VERSION): Do not put __DATE__ in the output.

    * make-mips (BISONFLAGS): Add -l to bison flags because the MIPS
    based compilers have problems with #line.
    (CC): Define in terms of $(OLDCC) so the USE_HOST macros work.
    (EXTRA_PASSES): Build mips-tfile and mips-tdump.
    (Makefile): Explicitly use sh to invoke configure.

    * make-decrose (EXTRA_PASSES): Build collect.
    (Makefile): Explicitly use sh to invoke configure.

Thu Aug  1 12:22:17 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * cccp.c (directive_table, node_type): Add #include_next.
    (do_include): Support #include_next.
    (finclude): New arg DIRPTR.  All callers changed.

    * reload1.c (reload_as_needed):  Check live_known before accessing
    basic_block_head.

Thu Aug  1 11:47:37 1991  Michael Meissner  (meissner at osf.org)

    * gcc.c (compilers): Add new spec %A, which expands ASM_FINAL_SPEC.
    This option is added after all other arguments to the assembler.  It
    is for the MIPS port to run a cleanup program after the assembler
    finishes, by having ASM_FINAL_SPEC be "\n mips-tfile args..."
    (set_spec): If name is 'asm_final', set the asm_final_spec.
    (process_command): print out asm_final_spec for -dumpspecs.
    (do_spec_1): Expand %A to be ASM_FINAL_SPEC.
    (validate_all_switches): look at any switches handled in
    ASM_FINAL_SPEC.

Thu Aug  1 07:42:37 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * dwarfout.c (element_list_attribute): AT_element_list is a BLOCK4.

Wed Jul 31 17:42:40 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * jump.c (jump_optimize): In "if (...) x = 1; else {...} if (x) ...":
    Don't assume that SYMBOL_REFs are always non-zero.
    Handle operations other than EQ and NE.
    Handle conditional RETURN properly.

    * out-a29k.c (print_operand, case 'e'): When writing LXn, use number
    of last label in function.
    (output_prolog): Fix missing arg in ADD  in a29k_first_epilogue_insn.

Wed Jul 31 13:41:37 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * sdbout.c (sdbout_parms): Don't crash if MEM address is a MEM.

Wed Jul 31 12:36:37 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * fixincludes: New variable INCLUDES specifies input dir.

    * Makefile.in (install-common): Add dummy elt to EXTRA_PASSES.
    Fix typo in test.

    * Makefile.in (install-cross-tools): Use /. in args to test -d.
    (cccp.o, dbxout.o, c-plus-*): Added missing dependencies.

    * c-common.c: Don't include rtl.h--that was unmodular.

    * make-i386v (INSTALL): Define this.

Wed Jul 31 07:38:12 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * Makefile.in (LIB2FUNCS_EXTRA): Extra C and assembler files for
    gnulib2.
        * make-m88k*: Put the assembler files in gnulib2 and eliminate use
    of gnulib1.

Tue Jul 30 20:21:41 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * stddef.h (WCHAR_T):
    Test _WCHAR_T_, __WCHAR_T, _T_WCHAR_ and ___int_wchar_t_h.

    * tm-i386isc.h (RETURN_POPS_ARGS): Caller pops the struct value addr.

    * cccp.c (default_include): Search local dir, system, then standard.

    * Makefile.in (USE_HOST_MALLOC, USE_HOST_OBSTACK):
    Don't depend on which C compiler is in use.

    * reload1.c (reload): Use pseudoreg to compute spill_indirect_levels.

    * c-decl.c (start_function): Don't take arg types from builtin.
    (duplicate_decls): Cancel builtin function if new arg types differ.
    Don't take arg types from buiiltin.

Tue Jul 30 18:45:39 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * reload.c (decompose): Don't blow up for constants; they are safe.

Tue Jul 30 15:49:34 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * dbxout.c (dbxout_parms): Don't crash if MEM address is a MEM.

    * Makefile.in (install-common): Don't lose if EXTRA_PASSES is empty.
    Don't install gcc if gcc-cross exists.
    (install-cross-tools): Fix typos.
    Avoid doing cd -- use absolute file names.
    (gcc-cross.o): Rule deleted.
    (gcc-cross): Build gcc, then copy it.

Tue Jul 30 15:37:25 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * cplus-init.c (build_vec_delete): Use `size_binop' when building up
    the array end boundary.

Tue Jul 30 10:03:54 1991  Michael Meissner  (meissner at osf.org)

    * tm-mips.h (DOLLARS_IN_IDENTIFIERS): Define to be 1.

Mon Jul 29 18:56:33 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * reload.c (refers_to_regno_for_reload_p): New function.
    (push_reload, find_dummy_reload, immune_p): Use
    refers_to_regno_for_reload_p instead of refers_to_regno_p.

    * cse.c (fold_rtx): Don't make shifts wider than object.

Mon Jul 29 17:17:55 1991  Michael Collison  (collison at osf.org)

    * configure: Added entry for mmax-osfrose (Multimax with ns32k
    running OSF/1).

Mon Jul 29 14:51:32 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * Makefile.in (SYMLINK): New variable.
    (install-cross-tools): Make symlinks if possible.
    Otherwise, for executables, indirect to tooldir with a shell script.
    (install-native): Install gcc-cross as bin/gcc under tooldir.

    * Makefile.in (USE_HOST_ALLOCA):
    Generate nothing if don't need separate alloca.
    (USE_HOST_OBSTACK, USE_HOST_MALLOC): New variables.
    (HOST_LIBS): Use them.
    (HOST_PREFIX_1): Make a dummy file with this name,
    for cross-compiling for a machine that needs no separate alloca, etc.

    * c-parse.y (stmts): Accept either labels or unlabeled statements.
    (lineno_labeled_stmt): New nonterminals.
    (stmt_or_label, lineno_stmt_or_label): New nonterminals.
    (stmts): Use lineno_stmt_or_label.
    (stmt): Don't allow labels at this level.
    Use lineno_labeled_stmt in place of lineno_stmt.

    * cccp.c (default_include): Get rid of extra #endif.
    Use CROSS_COMPILE, not CROSS.

    * make-i386mach: New file.
    * configure (i386-mach): Use that file.

Mon Jul 29 09:10:13 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * tm-m88kluna.h (SYSTEM_INCLUDE_DIR): Define (also MACH).

Sun Jul 28 16:15:39 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * cccp.c (default_include): Use SYSTEM_INCLUDE_DIR.
    Delete special cases for MACH, UNOS.
    * tm-i386mach.h, tm-sun3mach.h, tm-crds.h (SYSTEM_INCLUDE_DIR): Define.

    * cccp.c (default_include): Use CROSS_INCLUDE_DIR if cross-compiler.
    * Makefile.in (cccp.o): Pass a definition for CROSS_INCLUDE_DIR.

    * Makefile.in (gnulib1.null): New target.
    (install-common, install-common-headers, install-cross-tools):
    (install-cross-rest, install-float-h-cross): New targets.
    (install-float-h): New target.
    (install-cross, install-headers): Use them.
    (tooldir): New variable.
    (EXTRA_PASSES): New variable.

    * sdbout.c (plain_type_1): Don't record the size in sdb_type_size
    unless a tag is output.

    * Makefile.in (install-cross): Install specs by copying.
    Install either gcc or gcc-cross, whichever exists.
    (native): Remove gcc from deps.
    (start.encap): Add gcc to deps.
    (all.cross): Add gcc-cross to deps.
    (gcc-cross): Like gcc rule except different output file name.
    (gcc-cross.o): Likewise.

    * Makefile.in (EXTRA_PASSES): New variable.
    Used for machines which have extra passes to run.
    (install-cross): Install those programs.
    (native): Compile them.

    * c-parse.y: Support `foo:' before a close brace.
    (label): New nonterminal.
    (stmt): Use that.  Treat a label as a statement in itself.

    * Makefile.in (gnulib*.portable): Rules deleted.
    (GNULIB1, GNULIB2): Point directly at gnulib1, gnulib2.
    (gnulib): Use GNULIB1, GNULIB2 directly both as deps
    and to specify the input files.
    (gnulib1.conv): Renamed from gnulib1.convert; no longer phony.
    (gnulib*.target): Rules deleted.
    make-hp9k320 (GNULIB1): Use gnulib1.conv.
    (LIBCONVERT): Override.

    * move-if-change: Use -f with rm and mv.

    * Makefile.in (gnulib2.ready): No longer phony.

Sat Jul 27 13:03:50 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * combine.c (can_combine_p): Don't use NEXT_INSN, in previous change.

    * Makefile.in (class-c, objective-c): New targets.

    * tm-i386.h (ASM_OUTPUT_ALIGN_CODE): Define it.
    (ASM_OUTPUT_LOOP_ALIGN): Use ASM_OUTPUT_ALIGN_CODE.
    * tm-i386gas.h, tm-i386vgas.h (ASM_OUTPUT_ALIGN_CODE): Override it.
    (ASM_OUTPUT_LOOP_ALIGN): Definition deleted.

    * fixincludes (memvar.h): Make two defs of CAT, one ANSI and one trad.

    * expmed.c (emit_store_flag): Set ICODE only after CODE is right.

Sat Jul 27 06:45:32 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * flow.c (insn_dead_p): Don't clobber NEEDED while ensuring that we
    don't delete insns that set the frame or arg pointer.

    * flow.c (flow_analysis, find_basic_blocks, propagate_block):
    Use GET_RTX_CLASS.

Fri Jul 26 08:18:08 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * sdbout.c: Use <syms.h> for USG and provide a definition of
    T_VOID if none existed.  Use ./gsyms.h for non-USG systems.
    * gsyms.h: Renamed from syms.h.

Fri Jul 26 22:47:53 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * cccp.c (macroexpand): Fix error message syntax.

    * Makefile.in (gnulib2.target): Add semicolon.

Fri Jul 26 18:17:36 1991  Michael Meissner  (meissner at pogo.gnu.ai.mit.edu)

    * make-mips (CC): Bump -Wf,-XNg option to 1500 to allow the MIPS
    compiler to compile cc1plus.

Fri Jul 26 14:42:35 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * c-parse.y (yylex): Don't use mbtowc to translate L'\0'.

    * tm-m88ksvr4.h (CPP_SPEC): Specify SVR4 pre-assertions.

Fri Jul 26 09:53:53 1991  Michael Meissner  (meissner at pogo.gnu.ai.mit.edu)

    * Makefile.in (cplus_expr.o): Add missing dependencies, so cc1plus
    can be built without first building cc1.

Fri Jul 26 07:30:51 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * combine.c (can_combine_p): Can't combine if DEST is used in an
    insn in the range (succ, i3).

    * expmed.c (store_bit_field): Don't use insv if the mode of its
    input is narrower than the width of the field.
    (store_fixed_bit_field): Handle value with MODE_FLOAT mode.
    (extract_bit_field): Don't use extzv/extv if its output mode is
    narrower that width of field.
    (extract_bit_field): Handle returning MODE_FLOAT mode.

    * reorg.c (steal_delay_list_from_target): Add new arg PNEW_THREAD.
    Instead of redirecting jump, return its target in *PNEW_THREAD.
    (fill_slots_from_thread): Pass &NEW_THREAD to
    steal_delay_list_from_target.

Thu Jul 25 21:57:42 1991  Jim Wilson  (wilson at wookumz.gnu.ai.mit.edu)

    * sched.c: Correct tiemann's email address.
    (schedule_block): Note that the values of leftover REG_DEAD notes
    are meaningless.
    (new_insn_dead_notes): If find an instruction that both uses and
    sets dest, then no new REG_DEAD note is needed.
    (update_links): When handling dest of last insn, no new REG_DEAD
    note is needed if the last insn also uses its dest.

Thu Jul 25 18:15:33 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * flow.c (regno_clobbered_at_setjmp): Don't blow up if no basic blocks.

Thu Jul 25 16:55:57 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * cse.c (invalidate, cse_insn): Don't use HASHREG directly.
    (HASH): Substitute HASHREG in.
    (HASHREG): Deleted.

    * tm-i386mach.h: New file.
    * configure (i386-mach): Use that.

    * tm-i386isc.h: New file, copied from 1.40.

    * i386.md (jump, indirect_jump, tablejump, return):
    Use ASM_OUTPUT_ALIGN_CODE.
    * tm-i386gas.h, tm-i386vgas.h (ASM_OUTPUT_LOOP_ALIGN):
    Override the usual definition.

    * rtl.h (FUNCTION_FLAGS_USES_PIC_OFFSET_TABLE): Fix typo.

Thu Jul 25 16:25:52 1991  Tom Wood  (wood at dg-rtp.dg.com)

    * out-m88k.c (legitimize_address): Note use of addressing base.
    (m88k_layout_frame): Establish PIC addressing base as needed.

    * tm-m88kdgux.h (GPLUSPLUS_INCLUDE_DIR): Specify.

Thu Jul 25 07:54:36 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * rtl.h (FUNCTION_FLAGS_USES_PIC_OFFSET_TABLE): Defined.

    * integrate.c (expand_inline_function): Propagate the value of
    FUNCTION_FLAGS_USES_PIC_OFFSET_TABLE.

    * function.h (struct function): Add new field USES_PIC_OFFSET_TABLE
    to structure.  Leave it to md files to initialize this field.
    * expr.h (current_function_uses_pic_offset_table): New declaration.
    * function.c ({save,restore}_tree_status): Save and restore
    CURRENT_FUNCTION_USES_PIC_OFFSET_TABLE to/from this slot.
    * out-sparc.c (legitimize_pic_address): Set
    CURRENT_FUNCTION_USES_PIC_OFFSET_TABLE when appropriate.
    (finalize_pic): If the current function does not use the PIC offset
    table, there's no need to emit the PIC prologue.

Wed Jul 24 13:54:41 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * tm-m68k.h (NOTICE_UPDATE_CC):
    Calls clear status even if value in address reg.

    * tm-i386gas.h, tm-i386vgas.h (ASM_OUTPUT_ALIGN_CODE): Align with NOPs.

    * i386.md (andsi3): Don't use movzbl if op1 can't support it.

Wed Jul 24 07:47:59 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * cplus-decl.c (finish_decl): Don't build a cleanup for an variable
    that is TREE_EXTERNAL.

Tue Jul 23 20:48:23 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * make-mips: Delete rules for saber C.
    * Makefile.in (STAGESTUFF, gnulib2.ready): Undo last change.

    * tm-vax.h (LIB_SPEC): Supply missing close braces.

Tue Jul 23 14:03:10 1991  Michael Meissner  (meissner at osf.org)

    * protoize.c (toplevel): If FULL_PROTOTYPES is defined, assume that
    the system provides full prototypes, and include stdlib.h and
    unistd.h.
    (toplevel): If _POSIX_SOURCE is defined, wait takes a pointer to an
    int, even if the system is otherwise BSD.
    (toplevel): If NO_CONST_IN_SYSCALL and __STDC__ is defined, assume
    the system takes char *'s instead of const char *'s.
    (process_aux_info_file, edit_file): Always pass 3 arguments to open,
    to allow the NO_CONST_IN_SYSCALL macro to properly cast the
    arguments.

    * make-decrose (ALL): Make sure Makefile is rebuilt if either
    Makefile.in or make-decrose changes.
    (BUILD, SYSTEM_INCLUDES, LDFLAGS): Add BUILD variable to retarget
    which build is used.
    (CPP_ABORT): Don't define abort=fancy_abort here, do it in
    tm-mips.h.
    (INSTALL): Use installbsd program, since install uses System V
    semantics on OSF/1.
    (LANGUAGES): Rename collect-osf to collect.
    (CFLAGS, XCFLAGS): Make CFLAGS use standard args and use XCFLAGS to
    add additional arguments.
    (libdir, bindir, mandir): Define to current install values.
    (cplus-lex.o): Work around problems with 1.39 bootstrap compiler
    producing bad stabs for certain inlines.
    (osf-main.c): Add a simple G++ constructor/destructor to gnulib.

    * make-mips (ALL): Make Makefile depend on Makefile.in and
    make-mips.
    (CFLAGS, XCFLAGS): Make CFLAGS use standard args and use XCFLAGS to
    add additional arguments.
    (CC): Add -Wf,-XNg500 switch to compile with due to the MIPS
    compiler having fixed size tables.
    (SABER_*): Add rules to run saber-C.

    * mips.md (movsi_ulw): Allow unaligned register->register moves,
    which is caused by the optimizer, and generate the normal reg move
    code.  Also, turn loads from the stack into normal moves.
    (movsi_usw): Turn stores into the stack into normal moves.
    (call, call_value): Turn into a define_expand which takes three
    arguments, to make Saber happier.

    * tm-mips.h (abort macro): Define abort to be saber_stop if running
    under Saber C.
    (__PTR_TO_INT, __INT_TO_PTR): Define as casts if running on a MIPS
    machine instead of with subtraction, in an attempt to quiet Saber C.
    (ASM_MODIFY_SPEC): Run mips-tfile after the assembler, needs
    corresponding gcc.c change to enable.

    * tm-decrose.h (ASM_SPEC): Pass -v switch to gas as well as mips
    assembler.
    (ASM_MODIFY_SPEC): Run mips-tfile if -mmips-as.
    (LINK_SPEC): Pass -v switch to linker.
    (LIB_SPEC): Redefine as just -lc.
    (MD_EXEC_PREFIX, MD_STARTFILE_PREFIX): Undefine, use standard
    libdir, bindir, and mandir in Makefile now.
    (FULL_PROTOTYPES, NO_CONST_IN_SYSCALL): Define to get protoize
    to compile cleanly.

    * osf-main.c (new file): Provide simple constructor, destructor
    capability to be linked into gnulib.

    * collect-osf.c (various): General rewrite to improve speed and
    portability.

    * Makefile.in (CPLUS_OBJS): If CPLUS_INPUT is defined to be
    cplus-input.o, compile it separately to work around problems with
    bootstraping when it is included in cplus-lex.c.
    (STAGESTUFF): Use $(LANGUAGES) instead of hard coded list of
    languages, so make-xxx file can override, and provide others.
    (gnulib2.ready): Make gnulib2 depend on all LANGUAGES targets, so
    that if a target needs something else built, such as mips-tfile, it
    will be.
    (mostlyclean): Add missing -f to rm.
    (install-dir): Use test to see if the directory exists before trying
    to create it, and fail if the mkdir fails.
    (install-headers): ditto.
    (stage?, risky-stage?): ditto.
    (install-cross): Install collect and mips-tfile if they are present.

    * mips-tfile.c (toplevel, main): Add -I file option, which renames
    the original output file to the given file.

    * cplus-lex.c (toplevel): Include <assert.h> instead of "assert.h"
    in order to avoid problems when including cplus-input.c, which also
    uses <assert.h>.

    * cplus-pt.c (toplevel): Move include of config.h before obstack.h
    in case config.h defines some macros obstack.h uses such as
    __PTR_TO_INT.

Tue Jul 23 13:15:43 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * xm-i386.h, xm-i860.h, xm-spur.h, xm-tahoe.h: Use __builtin_alloca.

Tue Jul 23 12:26:01 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * function.c (instantiate_virtual_regs_1): Change dubious code that
    used to assign NEW to XEXP (x, 1) regardless of whether
    validate_change accepted it to instead set XEXP (x, 0) back to OLD.
    I.e., if the rtx is out of range and OBJECT is NULL, don't make any
    change at all.

    * out-sparc.c (compute_frame_size): If a function has any
    stack-local objects, it's frame size is non-zero and space must be
    reserved for the register window.

    * loop.c (loop_optimize): Use get_max_uid to compute max_uid_for_loop.

    * fold-const.c (size_int): Extend SIZE_TABLE's range from
    0..HOST_BITS_PER_INT-1 to 0..2*HOST_BITS_PER_INT.

    * integrate.c (expand_inline_function): Add minor efficiency
    hack to not free all the temp slots as parameters are passed
    from "caller" to "callee".

    * integrate.c (expand_inline_function): If the inline function
    returns its value via a structure_value_addr, we must prepare for
    this to take place, even if the value is ignored by the caller.

    * tm-decstatn.h (SIZE_TYPE): Define this to be "unsigned int".

    * emit-rtl.c (try_split): If `split_insns' actually returns a SEQ
    which is isomorphic to PAT, return TRIAL.

    * out-sparc.c (eligible_for_epilogue_delay): FP register moves are
    only eligible for leaf-function epilogue delay slots.

Tue Jul 23 11:52:50 1991  Michael Meissner  (meissner at geech.gnu.ai.mit.edu)

    * dbxout.c (dbxout_symbol): Correct typo in getting static member
    names.  The problem is DECL_ASSEMBLER_NAME returns a tree, and not a
    char *.

Tue Jul 23 07:10:41 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * varasm.c (immed_double_const): Use CONST_INT if MODE fits within
    HOST_BITS_PER_INT, not BITS_PER_WORD.

Mon Jul 22 21:37:03 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * fold-const.c (fold): Always preserve type after using const_binop.

Mon Jul 22 18:34:55 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * reload1.c (reload): Fix typo in condition for reg_equiv_address
    being set from reg_equiv_memory_loc; had X instead of XEXP (X, 0).

Mon Jul 22 15:25:48 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * gcc.c (process_command): -xnone turns off any -x option.

    * tree.c (copy_chain): Deleted.
    * integrate.c (copy_decl_tree): Use copy_list and copy_node.

Mon Jul 22 11:35:47 1991  Michael Tiemann  (tiemann at pogo.gnu.ai.mit.edu)

    * tree.c, tree.h: Fix typos in Jul 22 merge.

Mon Jul 22 08:51:47 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * jump.c (thread_jumps): Don't set CHANGED if the jump's label isn't
    changing.

Mon Jul 22 02:37:23 1991  Michael Tiemann  (tiemann at pogo.gnu.ai.mit.edu)

    * version.c: Bumped to 1.94 because of significant changes to
    cplus-* files.

Sun Jul 21 18:45:57 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * toplev.c (rest_of_compilation):
    Save and restore DECL_INITIAL if we use save_for_inline_copying.
    * integrate.c (save_for_inline_copying): Really copy DECL_INITIAL.
    Calling integrate_decl_tree doesn't do it; deleted that call.
    (copy_decl_tree): New function.

    * integrate.c (integrate_decl_tree): Renamed from copy_decl_tree.
    (integrate_parm_decls): Renamed from copy_parm_decls.

    * tree.c (copy_chain): New function.

Sun Jul 21 06:43:23 1991  James Van Artsdalen  (james at bigtex.cactus.org)

    * i386.md (tstsi): Add comment noting potential -m486 enhancement.
    (SImode push): With -m486, don't push from MEM.
    (addsi3): Don't use lea for three operand add if -m486.
    (ashlsi3): Don't use lea for shift of 1 if -m486.
    (zero_extendhisi2,zero_extendqihi2,zero_extendqisi2): If dest is
    %eax, or if -m486, AND is faster than MOVZX.

Sun Jul 21 06:27:33 1991  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

    * expmed.c (store_fixed_bit_field): Pass actual bit position (including
    offset) to get_best_mode; also limit mode size to BITS_PER_WORD.
    Use failure of get_best_mode to indicate that field spans word
    boundary.
    Pass actual bit position to store_split_bit_field.
    (store_split_bit_field): Accept actual bit position, hence handing
    bitpos > BITS_PER_WORD.
    Abort if BITPOS and BITSIZE don't cross exactly one word boundary.
    Pass offset to store_fixed_bit_field; if register, use operand_subword;
    else adjust offset for second word.
    (extract_{fixed,split}_bit_field): Likewise.

Sun Jul 21 06:11:55 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * All cplus-* files: DECL_VIRTUAL_P is no longer applied to
    FUNCTION_DECLs.  Instead, to test if a function is virtual or not,
    it suffices to test whether its DECL_VINDEX is non-NULL.  We use
    ERROR_MARK_NODE as the placeholder for a FUNCTION_DECL we know will
    be virtual, but for which we don't yet know the actual index.

    * cplus-decl.c (define_function): Don't set up DECL_ASSEMBLER_NAME
    until after having the chance to call through PFN.  Since `pushdecl'
    now keys off of DECL_ASSEMBLER_NAME, we don't want to create
    inadvertent aliases between builtin and library functions.

    * cplus-typeck.c (build_modify_expr): We don't need to build a
    SAVE_EXPR for a WITH_CLEANUP_EXPR.
    (unary_complex_lvalue): For good measure, know how to deal with a
    WITH_CLEANUP_EXPR inside a SAVE_EXPR.

    * cplus-pt.c (uses_template_parms): Add handler for ARRAY_TYPE.

    * cplus-method.c (do_inline_function_hair): Use TYPE_METHODS instead
    of CLASSTYPE_METHOD_VEC for traversing all methods when looking for
    inline functions.

    * cplus-class.c (finish_struct_methods): Fix fencepost error if
    there were no member functions except for ctors/dtors.

Sun Jul 21 06:19:01 1991  James Van Artsdalen  (james at bigtex.cactus.org)

    * tree.h, output.h (current_function_calls_longjmp): New variable.
    * function.c (top level): Define it.
    (push_function_context): Save it.
    (pop_function_context): Restore it.
    (init_function_start): Initialize it.

    * calls.c (expand_call): Set current_function_calls_longjmp if
    this call is to `longjmp'.

    * flow.c, global-alloc.c: Include output.h so that
    FRAME_POINTER_REQUIRED can use current_function_calls_*.
    * Makefile.in (flow.o,global-alloc.o): Includes output.h.

    * rtl.h (FUNCTION_FLAGS_CALLS_LONGJMP): New macro.

    * integrate.c (initialize_for_inline): Record
    current_function_calls_lonjmp in `function_flags'.
    (output_inline_function): Set current_function_calls_longjmp if
    the inline code calls longjmp.

    * function.h (struct function): New field `calls_longjmp'.

    * out-i386.c (simple_386_epilogue):  Add function description.
    Return 0 if NON_SAVING_SETJMP && `setjmp' is called in function.

    * tm-i386v.h (NON_SAVING_SETJMP): New macro.
    (FRAME_POINTER_REQUIRED): New macro.

Sat Jul 20 12:25:56 1991  Richard Stallman  (rms at mole.gnu.ai.mit.edu)

    * tm-m88k.h (OPTIMIZATION_OPTIONS): Don't change flag_signed_bitfields.

    * cccp.c (include_defaults) Use LOCAL_INCLUDE_DIR macro instead
    of "/usr/local/include".  Provide default definition.

    * cccp.c (include_defaults) Added INCLUDE_DEFAULTS macro to
    provide complete control over default include directories.
    Delete the special case for VMS.
    * xm-vms.h (INCLUDE_DEFAULTS): Defined.

    * proto-man: Renamed from proto-unproto.1.

    * final.c (final_scan_insn): Do ASM_OUTPUT_LOOP_ALIGN only for real loop.

Sat Jul 20 05:34:13 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * tree.h (tree_type): Use the MAXVAL slot for TYPE_METHODS.
    * cplus-class.c (finish_struct): Methods are now chained with
    TREE_CHAIN and placed in the TYPE_METHODS of their _TYPE node.
    * cplus-dbxout.c (dbxout_type_methods): Use this fact, instead of
    using more C++-specific knowledge.

    * cplus-decl.c (init_decl_processing): Variable
    `const_ptr_type_node' was not being initialized.  Same with
    `const_string_type_node'.

    * tree.h (DECL_PRINT_NAME): Marked for death.
    (DECL_ASSEMBLER_NAME): Changed from a char* to a tree node.
    All front-end files changed as necessary.

    * cplus-tree.h (DECL_ORIGINAL_NAME): Deleted.  Now we use
    DECL_NAME.
    (DECL_NAME): No longer means the mangled name.  Now we use
    DECL_ASSEMBLER_NAME for that purpose.
    All cplus-* files changed as necessary.

    * cplus-tree.c (lang_printable_name): Use a ring-buffer to hold
    printable names instead of DECL_PRINT_NAME slot of a _DECL node.

    * collect2.c: #define COLLECT, and let config.h provide definition
    of macros.

See file ChangeLog.3.