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[Bug tree-optimization/38359] [4.3/4.4 regression] ICE in set_lattice_value, at tree-ssa-ccp.c:466
- 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: 2 Dec 2008 14:50:27 -0000
- Subject: [Bug tree-optimization/38359] [4.3/4.4 regression] ICE in set_lattice_value, at tree-ssa-ccp.c:466
- References: <bug-38359-5724@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #6 from rguenth at gcc dot gnu dot org 2008-12-02 14:50 -------
Subject: Bug 38359
Author: rguenth
Date: Tue Dec 2 14:49:00 2008
New Revision: 142356
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=142356
Log:
2008-12-02 Richard Guenther <rguenther@suse.de>
PR tree-optimization/38359
* fold-const.c (fold_binary): Fold -1 >> x to -1 only for
non-negative x.
* gcc.c-torture/compile/pr38359.c: New testcase.
* gcc.c-torture/execute/shiftopt-1.c: Adjust.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/fold-const.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.c-torture/execute/shiftopt-1.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38359