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[Bug tree-optimization/54073] [4.7/4.8 Regression] SciMark Monte Carlo test performance has seriously decreased in recent GCC releases
- From: "markus at trippelsdorf dot de" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 24 Jul 2012 11:29:15 +0000
- Subject: [Bug tree-optimization/54073] [4.7/4.8 Regression] SciMark Monte Carlo test performance has seriously decreased in recent GCC releases
- Auto-submitted: auto-generated
- References: <bug-54073-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54073
Markus Trippelsdorf <markus at trippelsdorf dot de> changed:
What |Removed |Added
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CC| |markus at trippelsdorf dot
| |de
--- Comment #3 from Markus Trippelsdorf <markus at trippelsdorf dot de> 2012-07-24 11:29:15 UTC ---
-flto helps a lot in this case (CPU=K10):
-O3:
MonteCarlo: Mflops: 319.57
-O3 -flto:
MonteCarlo: Mflops: 921.67