Author: Eugene Nalimov
Date: 20:44:36 03/23/00
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Each optimizing compiler I know sometimes produces incorrect code (VC, Watcom C, GCC, even Fortran H/360). GCC was not able to compile my tablebase generator, and no patch was available. I had to find out the place where incorrect code was generated and modify my sources. Eugene On March 23, 2000 at 22:32:03, Christophe Theron wrote: >On March 23, 2000 at 01:43:59, Eugene Nalimov wrote: > >>On March 22, 2000 at 22:33:16, Robert Hyatt wrote: >> >>>On March 22, 2000 at 17:19:10, Christophe Theron wrote: >>> >>>>On March 22, 2000 at 16:38:27, ERIQ wrote: >>>> >>>>>does anyone think inprise will produce a better compiler for linux >>>>>than gnu gcc. I for one would like to see faster excutables for things >>>>>like winboard engines, and more other games. >>>> >>>> >>>>The GCC compiler produces one of the fastest code on the planet. >>>> >>>>Maybe the programs you have tested have been compiled with an older version of >>>>GCC which was not able to optimize for Pentium class processors. >>>> >>>>But there is now a version of GCC that knows how to optimize for Pentium and >>>>later. >>>> >>>>I doubt there is a compiler that produces faster code. If there is, it will by a >>>>very small margin, probably less than 5%. >>>> >>>> >>>> >>>> Christophe >>> >>> >>>MSVC is _far_ more than 10% faster than the best gcc compiler. I have tried >>>_all_ the gcc optimizations... Eugene has done pretty much the same for >>>microsoft. His executables run about 20% faster than mine. Identical source. >>> >>>MSVC is _really_ good at optimizing. gcc isn't there yet... >> >>MSVC 7 would be better :-) >> >>Eugene > > >Great. Will it produce correct code this time, or do I have to get a 120Mb patch >several months after the release to get it to work right? > >I have never caught GCC producing incorrect code, BTW. > > > Christophe
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