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[Bug rtl-optimization/24160] [4.1 Regression] ICE with -O1 -ftree-vectorize -msse
- From: "drab at kepler dot fjfi dot cvut dot cz" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 4 Oct 2005 09:06:53 -0000
- Subject: [Bug rtl-optimization/24160] [4.1 Regression] ICE with -O1 -ftree-vectorize -msse
- References: <bug-24160-8902@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #6 from drab at kepler dot fjfi dot cvut dot cz 2005-10-04 09:06 -------
(In reply to comment #5)
OK, then there are two questions:
1) Is the testcase from Comment #3 really hitting the same bug? since when I
compile my original test case with -O1 -ftree-vectorize -msse it works, but
then again the reduction might cause the differences.
2) I remember I found this (my original test case) as a bug long before the
CVS-20050812 (which I reported as first tested non-working) (unfortunatelly I
don't remember which CVS it was, but may be somewhere around what you found
(?)), but then all of a sudden it began to work again a bit later. So I didn't
report it back then. But then a little later (first noted at the reported
CVS-20050812) it broke again and is broken ever since. So something must have
done it back then between those CVS-20050723 and CVS-20050812 again.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24160