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[Bug tree-optimization/59358] [4.8/4.9 Regression] Infinite loop generated with >=O2
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 02 Dec 2013 22:41:25 +0000
- Subject: [Bug tree-optimization/59358] [4.8/4.9 Regression] Infinite loop generated with >=O2
- Auto-submitted: auto-generated
- References: <bug-59358-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59358
--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Mon Dec 2 22:41:23 2013
New Revision: 205607
URL: http://gcc.gnu.org/viewcvs?rev=205607&root=gcc&view=rev
Log:
PR tree-optimization/59358
* tree-vrp.c (union_ranges): To check for the partially
overlapping ranges or adjacent ranges, also compare *vr0max
with vr1max.
* gcc.c-torture/execute/pr59358.c: New test.
Added:
trunk/gcc/testsuite/gcc.c-torture/execute/pr59358.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-vrp.c