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[Bug target/38824] [4.4 Regression] performance regression of sse code from 4.2/4.3
- From: "tim at klingt dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 24 Jan 2009 13:14:09 -0000
- Subject: [Bug target/38824] [4.4 Regression] performance regression of sse code from 4.2/4.3
- References: <bug-38824-12873@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #10 from tim at klingt dot org 2009-01-24 13:14 -------
btw, i tried the proposed patch ssef, with no big performance difference:
tim@thinkpad:~/sandbox$ time ./a.out
real 0m2.494s
user 0m2.473s
sys 0m0.002s
tim@thinkpad:~/sandbox$ time ./a.out
real 0m2.479s
user 0m2.475s
sys 0m0.002s
tim@thinkpad:~/sandbox$ time ./a.out
real 0m2.501s
user 0m2.476s
sys 0m0.003s
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38824