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| author | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-04-01 16:18:07 +0000 |
|---|---|---|
| committer | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-04-01 16:18:07 +0000 |
| commit | 9c44b3951ca82eceb9be44f16a23fbd8c30240f4 (patch) | |
| tree | 678ba6a902249fc47cbebb2dbc758ecac5476c69 /gcc/tree-ssa-loop-ivopts.c | |
| parent | 0369b84fd8955b232eab4d48e2f9f0d27c6b3636 (diff) | |
| download | gcc-9c44b3951ca82eceb9be44f16a23fbd8c30240f4.tar.gz | |
2010-04-01 Richard Guenther <rguenther@suse.de>
PR middle-end/43614
* tree-ssa-address.c (copy_mem_ref_info): Copy TREE_SIDE_EFFECTS
and TREE_THIS_VOLATILE.
(copy_ref_info): Likewise.
* tree-ssa-operands.c (get_tmr_operands): Check TREE_THIS_VOLATILE.
* tree.c (build6_stat): Ignore side-effects of all but arg5
for TARGET_MEM_REF. Set TREE_THIS_VOLATILE from arg5 of
TARGET_MEM_REF.
* gcc.c-torture/compile/pr43614.c: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@157913 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-ssa-loop-ivopts.c')
| -rw-r--r-- | gcc/tree-ssa-loop-ivopts.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/tree-ssa-loop-ivopts.c b/gcc/tree-ssa-loop-ivopts.c index e6565dbdf99..f6db2415a36 100644 --- a/gcc/tree-ssa-loop-ivopts.c +++ b/gcc/tree-ssa-loop-ivopts.c @@ -5517,7 +5517,11 @@ copy_ref_info (tree new_ref, tree old_ref) if (TREE_CODE (old_ref) == TARGET_MEM_REF) copy_mem_ref_info (new_ref, old_ref); else - TMR_ORIGINAL (new_ref) = unshare_and_remove_ssa_names (old_ref); + { + TMR_ORIGINAL (new_ref) = unshare_and_remove_ssa_names (old_ref); + TREE_SIDE_EFFECTS (new_ref) = TREE_SIDE_EFFECTS (old_ref); + TREE_THIS_VOLATILE (new_ref) = TREE_THIS_VOLATILE (old_ref); + } } /* Rewrites USE (address that is an iv) using candidate CAND. */ |