diff options
| author | Richard Guenther <rguenther@suse.de> | 2010-04-01 16:18:07 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2010-04-01 16:18:07 +0000 |
| commit | 5e9fb3dbde748212ff0b025dcf196da9b086b1c4 (patch) | |
| tree | 678ba6a902249fc47cbebb2dbc758ecac5476c69 /gcc/tree-ssa-loop-ivopts.c | |
| parent | eb258d7f5d615232494c75db7e6dfab151a7b7d0 (diff) | |
| download | gcc-5e9fb3dbde748212ff0b025dcf196da9b086b1c4.zip gcc-5e9fb3dbde748212ff0b025dcf196da9b086b1c4.tar.gz gcc-5e9fb3dbde748212ff0b025dcf196da9b086b1c4.tar.bz2 | |
re PR tree-optimization/43614 (ice in gimple_rhs_has_side_effects, at gimple.c:2248)
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.
From-SVN: r157913
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 e6565db..f6db241 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. */ |