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[Bug tree-optimization/31169] Bootstrap comparison error at revision 122821
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 15 Mar 2007 17:28:02 -0000
- Subject: [Bug tree-optimization/31169] Bootstrap comparison error at revision 122821
- References: <bug-31169-276@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #11 from rguenth at gcc dot gnu dot org 2007-03-15 17:28 -------
Note that either SCEV or ivopts derives a loop trip count of 1 wrongly out of
the [1] sized array as it is a tail array. Why this happens in stage2 and not
stage1 is of course a mystery if not (what is probably the case)
tree-scalar-evolution.c, tree-chrec.c or tree-ssa-loop-ivopts.c is miscompiled.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31169