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[Bug optimization/13653] [3.3 regression] -O2 -funroll-loop miscompiles POOMA testcase
- From: "rguenth at tat dot physik dot uni-tuebingen dot de" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 2 Feb 2004 21:29:48 -0000
- Subject: [Bug optimization/13653] [3.3 regression] -O2 -funroll-loop miscompiles POOMA testcase
- References: <20040112101346.13653.rguenth@tat.physik.uni-tuebingen.de>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From rguenth at tat dot physik dot uni-tuebingen dot de 2004-02-02 21:29 -------
Subject: Re: [3.3 regression] -O2 -funroll-loop
miscompiles POOMA testcase
On Mon, 2 Feb 2004, reichelt at gcc dot gnu dot org wrote:
> I'm afraid the result of the regression hunt doesn't help either. :-(
> I used today's 3.3 branch, reverted both patches, and I still get a crash
> with "-O2 -funroll-loops" and no crash with "-O2".
Uh. That's sad. I suppose doing another hunt with the patch reverted
wouldn't help much, either... But maybe some middle-end wizard can figure
out what's going wrong with the parts of the puzzle we have now.
Richard.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13653