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| author | Richard Guenther <rguenther@suse.de> | 2007-07-13 15:41:02 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2007-07-13 15:41:02 +0000 |
| commit | cbf8d355b8ea5cdbbc02ac0ab0433aaa79431a3b (patch) | |
| tree | 09665852468f06599133d7e15cdbb53604802650 /gcc/tree-ssa-operands.c | |
| parent | 05724daed2ffba316e84fcd45f02221d52e4fa95 (diff) | |
| download | gcc-cbf8d355b8ea5cdbbc02ac0ab0433aaa79431a3b.zip gcc-cbf8d355b8ea5cdbbc02ac0ab0433aaa79431a3b.tar.gz gcc-cbf8d355b8ea5cdbbc02ac0ab0433aaa79431a3b.tar.bz2 | |
re PR tree-optimization/32721 (CCP removes volatile qualifiers.)
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.
From-SVN: r126624
Diffstat (limited to 'gcc/tree-ssa-operands.c')
| -rw-r--r-- | gcc/tree-ssa-operands.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/tree-ssa-operands.c b/gcc/tree-ssa-operands.c index 1e9dde7..b0c3b95 100644 --- a/gcc/tree-ssa-operands.c +++ b/gcc/tree-ssa-operands.c @@ -2078,6 +2078,9 @@ get_expr_operands (tree stmt, tree *expr_p, int flags) if (!none) flags |= opf_no_vops; + + if (TREE_THIS_VOLATILE (expr)) + get_stmt_ann (stmt)->has_volatile_ops = true; } else if (TREE_CODE (ref) == INDIRECT_REF) { |