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[Bug tree-optimization/32721] [4.3 Regression] CCP removes volatile qualifiers.
- 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: 13 Jul 2007 15:41:17 -0000
- Subject: [Bug tree-optimization/32721] [4.3 Regression] CCP removes volatile qualifiers.
- References: <bug-32721-14766@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #7 from rguenth at gcc dot gnu dot org 2007-07-13 15:41 -------
Subject: Bug 32721
Author: rguenth
Date: Fri Jul 13 15:41:02 2007
New Revision: 126624
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=126624
Log:
2007-07-13 Richard Guenther <rguenther@suse.de>
PR tree-optimization/32721
* tree-ssa-ccp.c (maybe_fold_stmt_indirect): Preserve
TREE_THIS_VOLATILE on the folded reference.
* tree-ssa-operands.c (get_expr_operands): Set has_volatile_ops
if the array reference has TREE_THIS_VOLATILE set.
* gcc.dg/pr32721.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/pr32721.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-ccp.c
trunk/gcc/tree-ssa-operands.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32721