Author: Robert Hyatt
Date: 07:42:28 02/28/98
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On February 28, 1998 at 09:42:40, Christophe Theron wrote: >On February 28, 1998 at 00:04:33, Robert Hyatt wrote: > >>On February 28, 1998 at 00:01:06, Christophe Theron wrote: >> >>>I worked hard to port Tiger from Gnu C (free compiler) to Microsoft >>>Visual C++ 4.0. >>> >>>Well... What I get is a 10% SLOWDOWN!!! All speed optimizations turned >>>ON. And the fastest code is achieved when I select 486 instead of >>>Pentium! >>> >>>Several possible explanations: >>>1) I should upgrade to a better version of MSVC... >> >>absolutely. Get MSVC version 5.0. The code optimizer is far better >>and knows about the pentium architecture. 4.0 does not so far as I >>know. >> >>>2) I am calling a fonction that is very time consuming under MSVC, and >>>is cheap under GnuC... >> >>doubtful. msvc 5 makes crafty about 10% faster than even the best >>pentium >>compiler group version of gcc. and that is without using the assembly >>code >>we use with gcc... > >OK. I'll buy the latest MSVC. > >Maybe I should also try to download the latest GCC version. I have heard >that it has been improved for Pentium code generation "recently". I'm >using the June 97 version. > >Thanks Bob! > > > Christophe I don't know what has happened in the DJGPP world, but at www.goof.com the pentium compiler group has done some good stuff for linux and others using gcc...
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