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[Bug target/31897] [4.3 Regression] 30% speed regression with -m32 on Opteron with rnflow
- From: "ubizjak at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 18 Jul 2007 12:05:25 -0000
- Subject: [Bug target/31897] [4.3 Regression] 30% speed regression with -m32 on Opteron with rnflow
- References: <bug-31897-13404@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #5 from ubizjak at gmail dot com 2007-07-18 12:05 -------
The problem is in cptrf2 function when both -mfpmath=387 and -ftree-vectorize
are used.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31897