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[Bug tree-optimization/41118] Wrong dependence analysis in graphite for unrestricted pointers
- From: "amonakov at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 19 Aug 2009 16:26:57 -0000
- Subject: [Bug tree-optimization/41118] Wrong dependence analysis in graphite for unrestricted pointers
- References: <bug-41118-15322@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from amonakov at gcc dot gnu dot org 2009-08-19 16:26 -------
(In reply to comment #1)
> I wonder why the alias analysis improvements by Li do not assign
> different alias sets for "a" and "b" in this case. I will have to try
> to reproduce this bug first.
Assigning different alias sets would mean that a[i] and b[j] do not alias for
all i and j, which is not desirable either.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41118