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[Bug tree-optimization/35231] [4.3 Regression] VRP miscompiles libX11
- 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: 17 Feb 2008 14:01:36 -0000
- Subject: [Bug tree-optimization/35231] [4.3 Regression] VRP miscompiles libX11
- References: <bug-35231-10053@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from rguenth at gcc dot gnu dot org 2008-02-17 14:01 -------
Subject: Bug 35231
Author: rguenth
Date: Sun Feb 17 14:00:48 2008
New Revision: 132378
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=132378
Log:
2008-02-17 Richard Guenther <rguenther@suse.de>
PR tree-optimization/35231
* tree-vrp.c (register_edge_assert_for): Do not assume A == 0
if A | B != 1.
* gcc.c-torture/execute/pr35231.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.c-torture/execute/pr35231.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-vrp.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35231