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[Bug tree-optimization/32183] [4.3 Regression] reassoc2 can more extra calculations into a loop
- From: "hjl at lucon dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 5 Jun 2007 00:15:14 -0000
- Subject: [Bug tree-optimization/32183] [4.3 Regression] reassoc2 can more extra calculations into a loop
- References: <bug-32183-682@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #28 from hjl at lucon dot org 2007-06-05 00:15 -------
(In reply to comment #25)
> So probably this restriction should be applied only in reassoc2 (or reassoc2
> should be removed, if Daniel believes it is not useful).
>
My SPEC CPU 2000 resutls in comment #18 shows reassoc2 improves some
benchmarks. I will post SPEC CPU 2006 result when it finishes.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32183