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[Bug c++/26788] optimization of expression templates not as performant as g++ 4.0.2
- From: "roebel at ircam dot fr" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 22 Mar 2006 11:55:05 -0000
- Subject: [Bug c++/26788] optimization of expression templates not as performant as g++ 4.0.2
- References: <bug-26788-12390@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #10 from roebel at ircam dot fr 2006-03-22 11:55 -------
Not that I understand what you just said, but, I wanted to mention, that
in contrast to my initial email the data I just sent
indicates a small performance penalty of about 25% for g++ 4.0.2
for large vectors on a pentium 4 (that are the results I've sent)
while there is no such
penalty for large vectors on a pentium m. On a pentium m g++ 4.0.2
works as well as g++ 4.1.0 on pentium 4 with the --param salias...=50.
Unfortunately, I dont have gcc 4.1.0 on my pentium m machine
thanks,
Axel
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26788