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| author | Xinliang David Li <davidxl@google.com> | 2009-03-27 17:18:58 +0000 |
|---|---|---|
| committer | Xinliang David Li <davidxl@gcc.gnu.org> | 2009-03-27 17:18:58 +0000 |
| commit | 4577cea1cde9b4c1c9d92d63920a3bd8ff81c2c4 (patch) | |
| tree | a8ca7ed410f4b6d55c2ad1ff5ef09a34dc57c94f /gcc/tree-ssa-copy.c | |
| parent | 0f7464f40330f3c81d57aa433f5285fe9f00abd8 (diff) | |
| download | gcc-4577cea1cde9b4c1c9d92d63920a3bd8ff81c2c4.zip gcc-4577cea1cde9b4c1c9d92d63920a3bd8ff81c2c4.tar.gz gcc-4577cea1cde9b4c1c9d92d63920a3bd8ff81c2c4.tar.bz2 | |
Fix for PR39548
From-SVN: r145118
Diffstat (limited to 'gcc/tree-ssa-copy.c')
| -rw-r--r-- | gcc/tree-ssa-copy.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/tree-ssa-copy.c b/gcc/tree-ssa-copy.c index 654ba95..64c697a 100644 --- a/gcc/tree-ssa-copy.c +++ b/gcc/tree-ssa-copy.c @@ -908,7 +908,8 @@ copy_prop_visit_phi_node (gimple phi) } } - if (phi_val.value && set_copy_of_val (lhs, phi_val.value)) + if (phi_val.value && may_propagate_copy (lhs, phi_val.value) + && set_copy_of_val (lhs, phi_val.value)) retval = (phi_val.value != lhs) ? SSA_PROP_INTERESTING : SSA_PROP_VARYING; else retval = SSA_PROP_NOT_INTERESTING; |