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[Bug tree-optimization/32533] [4.1/4.2 regression] miscompilation at -O3 -ffast-math -ftree-vectorize -march=native
- From: "ubizjak at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 1 Jul 2007 09:40:08 -0000
- Subject: [Bug tree-optimization/32533] [4.1/4.2 regression] miscompilation at -O3 -ffast-math -ftree-vectorize -march=native
- References: <bug-32533-6642@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #8 from ubizjak at gmail dot com 2007-07-01 09:40 -------
(In reply to comment #6)
> Hm, in the dump (gcc-4.1.3), preceeding ifcvt, we have:
> Isn't marked statement unreachable?
The problem is in ifcvt pass, as confirmed by a c testcase in PR31966. This
problem is also present in 4.3 branch, but (as explained in Comment #1), not
triggered by the fortran testcase in this PR.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32533