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| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/tree-ssa-loop-niter.c | 4 |
2 files changed, 9 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index cb5ec8c..d2fa198 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2010-06-09 Richard Guenther <rguenther@suse.de> + + * tree-ssa-loop-niter.c (simplify_replace_tree): Do not + replace constants. + 2010-06-09 Kai Tietz <kai.tietz@onevision.com> * c-objc-common.c (c_tree_printer): Pre-intialize t by NULL_TREE. diff --git a/gcc/tree-ssa-loop-niter.c b/gcc/tree-ssa-loop-niter.c index accf17a..170fb22 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); |