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Text File  |  1992-11-09  |  1.6 KB  |  36 lines
  1. Newsgroups: comp.os.os9
  2. Path: sparky!uunet!utcsri!torn!watserv2.uwaterloo.ca!watserv1!norton.uwaterloo.ca!bcwhite
  3. From: bcwhite@norton.uwaterloo.ca (Brian C. White)
  4. Subject: Re: Ultra C test results
  5. Message-ID: <BxGoLw.3L4@watserv1.uwaterloo.ca>
  6. Sender: news@watserv1.uwaterloo.ca
  7. Organization: University of Waterloo
  8. References: <1992Nov8.200254.7954@bernina.ethz.ch>
  9. Date: Mon, 9 Nov 1992 18:27:31 GMT
  10. Lines: 24
  11.  
  12. In article <1992Nov8.200254.7954@bernina.ethz.ch> stp@bernina.ethz.ch (Stephan Paschedag) writes:
  13. >
  14. >gcc -O -ob -mnostack-check -m68020
  15. >    -fomit-frame-pointer -fforce-mem
  16. >    -fcombine-regs                        30477      17774
  17. >
  18.  
  19. I was just looking over your compile list for comparing the various
  20. compilers and was surprised to see options like "-fcombine-regs" on
  21. the same line as "-O" (for gcc, I should add).  I assumed that "-O"
  22. automatically turned on all such optimization.  It would seem I was
  23. mistaken.  What flags are turned on with "-O"?  Could you provide a
  24. list?
  25.  
  26.                                         Brian
  27.  
  28. -------------------------------------------------------------------------------
  29. INTERNET:    bcwhite@sunee.uwaterloo.ca   |                                    
  30. DELPHI:      BrianWhite (@delphi.com)     |       #include <disclaimer.h>      
  31. COMPUSERVE:  70313.3344 (@compuserve.com) |                                    
  32. -------------------------------------------------------------------------------
  33.       Any given  program contains at least  one bug and can  be shortened
  34.             by one  instruction.   Therefore, all  programs can  be
  35.                 shortened  to one instruction that won't  work.
  36.