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| author | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-10-25 14:52:32 +0000 |
|---|---|---|
| committer | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-10-25 14:52:32 +0000 |
| commit | 248022b2c5ea602f9a64a926c213aad74f119152 (patch) | |
| tree | 4ea7a5db9dd46f6e2bcb5902d32cc1518ce78171 /gcc/tree-ssa-loop-ivcanon.c | |
| parent | 7b463b19dc03823c76901c991cd2d193a947c363 (diff) | |
| download | gcc-248022b2c5ea602f9a64a926c213aad74f119152.tar.gz | |
PR tree-optimize/54980
* tree-ssa-loop-ivcanon.c (constant_after_peeling): Fix
obvious typo.
(loop_edge_to_cancel): Be sure that the edge is from an conditional
so we can cancel it.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@192809 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-ssa-loop-ivcanon.c')
| -rw-r--r-- | gcc/tree-ssa-loop-ivcanon.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/tree-ssa-loop-ivcanon.c b/gcc/tree-ssa-loop-ivcanon.c index 323045f32eb..3868b45a4c3 100644 --- a/gcc/tree-ssa-loop-ivcanon.c +++ b/gcc/tree-ssa-loop-ivcanon.c @@ -160,7 +160,7 @@ constant_after_peeling (tree op, gimple stmt, struct loop *loop) /* First make fast look if we see constant array inside. */ while (handled_component_p (base)) base = TREE_OPERAND (base, 0); - if ((DECL_P (base) == VAR_DECL + if ((DECL_P (base) && const_value_known_p (base)) || CONSTANT_CLASS_P (base)) { @@ -364,6 +364,10 @@ loop_edge_to_cancel (struct loop *loop) else edge_to_cancel = EDGE_SUCC (edge_to_cancel->src, 0); + /* We only can handle conditionals. */ + if (!(edge_to_cancel->flags & (EDGE_TRUE_VALUE | EDGE_FALSE_VALUE))) + continue; + /* We should never have conditionals in the loop latch. */ gcc_assert (edge_to_cancel->dest != loop->header); |