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[Bug optimization/13653] [3.3 regression] -O2 -funroll-loop miscompiles POOMA testcase
- From: "bangerth at dealii dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 15 Jan 2004 19:10:44 -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 bangerth at dealii dot org 2004-01-15 19:10 -------
For whatever reason, the sources I just attached need to be compiled
with -pthread. Trying to reduce the testcase presently exceeds my time
limits, though, in particular since compiling with these flags and
-ggdb does not yield any meaningful backtrace etc :-( Local variables
are also useless, so I am not sure whether Richard's initial analysis
is valid.
Richard: can you try and see what happens when you use a recent snapshot
from gcc mainline?
Thanks
W.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13653