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Text File  |  1997-09-04  |  7KB  |  264 lines
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  8.                     7.2 Fortran 77 Front-End Release Notes
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  69.                                                - 2 -
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  73.                     DDDDooooccccuuuummmmeeeennnntttt NNNNuuuummmmbbbbeeeerrrr 000000007777----1111666655559999----000011110000
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  76.                     6.  _B_u_g__F_i_x_e_s
  77.  
  78.                     This chapter briefly describes the bugs that
  79.                     have been fixed in the compiler since release
  80.                     7.1.  Some of the headings are followed by a
  81.                     Silicon Graphics incident report number.
  82.  
  83.                        +o Very slow compilation of Fortran file.
  84.                          Under certain circumstances, the
  85.                          compilation of a certain Fortran source
  86.                          code file would take approximately 45
  87.                          minutes to compile.
  88.                          This has been fixed (Bug #475298).
  89.  
  90.                        +o Datapool: padding between datapool elements
  91.                          Datapool items were always aligned on
  92.                          doubleword boundary, regardless of their
  93.                          types.  This has been fixed so that they
  94.                          are aligned according to the type of each
  95.                          item. (Bug #453040).
  96.  
  97.                        +o Compiler coredumps when compiling with -32
  98.                          -g option.
  99.                          Under certain circumstances, the compiler
  100.                          would dump core when compiling files -32
  101.                          -g.  This has been fixed.  (Bug #372302)
  102.  
  103.                        +o Namelist I/O problem
  104.                          Fixed the problem in namelist I/O which
  105.                          resulted in the error "variable not in
  106.                          namelist" (Bug #359690)
  107.  
  108.                        +o Structures misalignemnt
  109.                          Fixed a problem where structures were not
  110.                          aligned properly and caused a bus error.
  111.                          (Bug #443526)
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  113.                        +o Rejecting -p flag
  114.                          The following code would core dump when
  115.                          compiled with -p.
  116.  
  117.                          a = 1.0
  118.                          b = 2.0
  119.                          c = matmul(a,b)
  120.                          print *, c
  121.                          stop
  122.                          end
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  135.                                                - 3 -
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  139.                          As -p is no longer supported; the user
  140.                          should use ssrun -pcsamp, etc. to do pc-
  141.                          sampling.  The compiler was changed to
  142.                          reject -p with a warning.  (Bug #444089)
  143.  
  144.                        +o f77 -n32 causes problems reading
  145.                          unformatted files
  146.                          Under certain circumstances programs
  147.                          compiled -n32 would have problems reading
  148.                          unformatted files.  This has been fixed.
  149.                          (Bug #454102)
  150.  
  151.                        +o n32/64  f77 compilers do not accept
  152.                          -NCxxxx, xxxx>1000
  153.                          Code with more than 1000 continuation lines
  154.                          would get an error similar to the
  155.                          following:
  156.  
  157.                          Command-line error(2414): Invalid number of continuation lines in -NC
  158.  
  159.                          This has been fixed.  (Bug #461738)
  160.  
  161.                        +o f77 structure alignment problem when using
  162.                          -32 compiler option, bus error
  163.                          This has been fixed.  (Bug #468837)
  164.  
  165.                        +o f77 unformatted write with negative implied
  166.                          do fails
  167.                          The following code fragment would not be
  168.                          compiled correctly:
  169.  
  170.                          c
  171.                          c  This does not work when using f77 -mips4
  172.                          c
  173.                                  open(11,file='file1.dat',form='unformatted')
  174.                                  write(11) imax,1,1
  175.                                  write(11) (xt(i),i=imax,1,-1),
  176.                               &          (yt(i),i=imax,1,-1),
  177.                               &          (zt(i),i=imax,1,-1)
  178.                                  close(11)
  179.                          c
  180.  
  181.                          This has been fixed.  (Bug #468899)
  182.  
  183.                        +o f77: compiler error: can't find local for
  184.                          idn = 10, offset = 40
  185.                          The following code would not be compiled
  186.                          correctly -static -g -c:
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  201.                                                - 4 -
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  205.                                  SUBROUTINE MAPCRV (XMAP, NPARRA, DATSTR, ERR)
  206.                                  CHARACTER DATSTR*(*)
  207.                                  GO TO 10
  208.                                  ENTRY MAPSYM (XMAP, NPARRA, ISYM, KOLREF, HTSYM, SYMANG, XLTABL, N
  209.                               +  LTABL, DATSTR, ERR)
  210.  
  211.                             10   CONTINUE
  212.                                  RETURN
  213.                                  END
  214.  
  215.                          This has been fixed.  (Bug #469034)
  216.  
  217.                        +o Assertion failure with -r8 -O3 during LNO
  218.                          phase
  219.                          Under certain circumstances, an f77
  220.                          compilation would abort with the following
  221.                          error message:
  222.  
  223.                          ### Assertion failure at line 270 of ../../be/lno/snl_trans.cxx:
  224.                          ### Compiler Error in file foo1.f during Loop Nest Optimizer phase:
  225.                          ### Projection failed!
  226.                          f77 INTERNAL ERROR:  /usr/lib32/cmplrs/be returned non-zero status 1
  227.  
  228.                          This has been fixed.  (Bug #473750).
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  231.                        +o f77 -64 fails on close of non-existent file
  232.                          Closing a non-existent file causes error
  233.                          when the executable was compiled with the
  234.                          "-64" option.  This has been fixed.  (Bug
  235.                          #477232)
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  237.  
  238.                        +o mfef77 core dumps with undefined variable
  239.                          When compiling incorrect code with -n32
  240.                          option, in which an array has no type
  241.                          declaration, /usr/lib32/cmplrs/mfef77 would
  242.                          core dump.  This has been fixed.  (Bug
  243.                          #492186)
  244.  
  245.  
  246.                        +o Optimization -O3 gives wrong result in f77
  247.                          version 7.1
  248.                          Under a certain condition using -O3 in
  249.                          conjunction with f77 -n32 would produce a
  250.                          program which gives incorrect results.
  251.                          This has been fixed.  (Bug #517093)
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