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[Bug tree-optimization/33928] [4.3 Regression] 22% performance slowdown from 4.2.2 to 4.3.0 in floating-point code
- From: "ubizjak at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 22 Jan 2008 12:52:13 -0000
- Subject: [Bug tree-optimization/33928] [4.3 Regression] 22% performance slowdown from 4.2.2 to 4.3.0 in floating-point code
- References: <bug-33928-271@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #30 from ubizjak at gmail dot com 2008-01-22 12:52 -------
Please note that for the original testcase (direct.i), even '-O2 --param
max-aliased-vops=100000' doesn't generate expected code.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33928