diff options
| author | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-06-09 12:48:34 +0000 |
|---|---|---|
| committer | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-06-09 12:48:34 +0000 |
| commit | 4b9edb63d74b46c67657accfdb1a16318ae6afba (patch) | |
| tree | f58b12d17bea68e37c033b2a78f7510cc54c9640 /gcc/tree-ssa-loop-niter.c | |
| parent | 40af37bd8a38976ca6f41af80c5f700e42002d66 (diff) | |
| download | gcc-4b9edb63d74b46c67657accfdb1a16318ae6afba.tar.gz | |
2010-06-09 Richard Guenther <rguenther@suse.de>
* tree-ssa-loop-niter.c (simplify_replace_tree): Do not
replace constants.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@160467 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-ssa-loop-niter.c')
| -rw-r--r-- | gcc/tree-ssa-loop-niter.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/tree-ssa-loop-niter.c b/gcc/tree-ssa-loop-niter.c index accf17a4c23..170fb22ca4c 100644 --- a/gcc/tree-ssa-loop-niter.c +++ b/gcc/tree-ssa-loop-niter.c @@ -1374,6 +1374,10 @@ simplify_replace_tree (tree expr, tree old, tree new_tree) if (!expr) return NULL_TREE; + /* Do not bother to replace constants. */ + if (CONSTANT_CLASS_P (old)) + return expr; + if (expr == old || operand_equal_p (expr, old, 0)) return unshare_expr (new_tree); |