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[Bug tree-optimization/22228] [4.1 regression] ICE with -ftree-vectorize in verify_ssa
- From: "dorit at il dot ibm dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 9 Aug 2005 17:14:26 -0000
- Subject: [Bug tree-optimization/22228] [4.1 regression] ICE with -ftree-vectorize in verify_ssa
- References: <20050628232126.22228.bangerth@dealii.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From dorit at il dot ibm dot com 2005-08-09 17:14 -------
> I'm not sure what relationship this patch has wrt this PR -- I filed the PR
> on 2005-06-28, so before Diego's patch. It may well have exposed a separate
> problem, though.
>
I tried a snaphost from 20050710, just before Diego's patch, and it passed
successfully. The next snapshot I tried, from the next day, with Diesgo's patch
and a few other bits, produced this error:
error: definition in block 1 does not dominate use in block 3
for SSA_NAME: SFT.3_39 in statement:
# VUSE <SFT.3_39>;
lsm_tmp.35_36 = D.2625.j;
pr22543.cc:26: internal compiler error: verify_ssa failed
Maybe there are multiple unrelated problems grouped under this one PR. Or maybe
PR22543 is not a duplicate of this one. This error one is the only one I can
currently reproduce.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22228