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[Bug target/36713] [4.4 regression] r137252 breaks -O2 optimization on x86_64-unknown-linux-gnu
- From: "franke dot daniel at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 3 Jul 2008 09:53:55 -0000
- Subject: [Bug target/36713] [4.4 regression] r137252 breaks -O2 optimization on x86_64-unknown-linux-gnu
- References: <bug-36713-13648@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from franke dot daniel at gmail dot com 2008-07-03 09:53 -------
Subject: Re: [4.4 regression] r137252 breaks -O2 optimization on
x86_64-unknown-linux-gnu
3 Jul 2008 09:42:44 -0000, rguenther at suse dot de <gcc-bugzilla@gcc.gnu.org>:
> Hm, I'm out of quick ideas ;) Polyhedron still seems to work fine
> for me, as does SPEC 2000.
Any hint of what I should look for? Some specific feature that the
change in question might affect?
If nothing else, I'll try to compare dumps between the two revisions.
Is this a specific pass or will -fdump-tree-optimized do?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36713