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| author | vries <vries@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-10-23 13:26:45 +0000 |
|---|---|---|
| committer | vries <vries@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-10-23 13:26:45 +0000 |
| commit | 888da683ecda500c087776aaa708d74d25a1e55f (patch) | |
| tree | 9eaf6cd1b1c2baf624da7125ea93a82260620b34 /gcc/tree-ssa-tail-merge.c | |
| parent | de6af02914dc635a2bad27542b0150b2fc39d237 (diff) | |
| download | gcc-888da683ecda500c087776aaa708d74d25a1e55f.tar.gz | |
Add missing check in stmt_local_def for tail-merge.
2013-10-22 Tom de Vries <tom@codesourcery.com>
PR tree-optimization/58805
* tree-ssa-tail-merge.c (stmt_local_def): Add gimple_vdef check.
* gcc.dg/pr58805.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@203973 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-ssa-tail-merge.c')
| -rw-r--r-- | gcc/tree-ssa-tail-merge.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/tree-ssa-tail-merge.c b/gcc/tree-ssa-tail-merge.c index 785d986c65d..be5b71e58a8 100644 --- a/gcc/tree-ssa-tail-merge.c +++ b/gcc/tree-ssa-tail-merge.c @@ -304,7 +304,8 @@ stmt_local_def (gimple stmt) tree val; def_operand_p def_p; - if (gimple_has_side_effects (stmt)) + if (gimple_has_side_effects (stmt) + || gimple_vdef (stmt) != NULL_TREE) return false; def_p = SINGLE_SSA_DEF_OPERAND (stmt, SSA_OP_DEF); |