From: gdemont AT my-deja DOT com
Newsgroups: comp.os.msdos.djgpp
Subject: Performance 2.7.2 -> 2.8.1
Date: Thu, 19 Oct 2000 10:00:49 GMT
Organization: Deja.com - Before you buy.
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Hi all. Did someone notice a degradation
of performance of code generation with -O2,
from GCC 2.7.2 to 2.8.1 in certain contexts,
on Pentium processors, even though 2.8.1 brought
the "-mpentium" option ?

Could it be specific to the DOS port or is it a
bad blending of new optimisation techniques ?
Could GCC 2.9.5+ revert that apparent tendency ?

TIA for enlightenment!
Gautier


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