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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 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); |