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[Bug tree-optimization/18888] [4.0 regression] loops miscompiled
- From: "law at redhat dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 14 Dec 2004 17:33:56 -0000
- Subject: [Bug tree-optimization/18888] [4.0 regression] loops miscompiled
- References: <20041208144915.18888.schwab@suse.de>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From law at redhat dot com 2004-12-14 17:33 -------
This appears to be a bug in how we coalesce objects appearing in abnormal
PHIs. [ We get abnormal PHIs because of the computed gotos. ]
I've got a patch which appears to generate the right code for this testcase
and I'll be testing today. I will (of course) post a more detailed analysis
when I officially submit the patch.
Jeff
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18888