From 76c857431e7e5887fa28ba9a50f098a9fbe2a3e9 Mon Sep 17 00:00:00 2001 From: Richard Guenther Date: Wed, 9 Jun 2010 12:48:34 +0000 Subject: [PATCH] tree-ssa-loop-niter.c (simplify_replace_tree): Do not replace constants. 2010-06-09 Richard Guenther * tree-ssa-loop-niter.c (simplify_replace_tree): Do not replace constants. From-SVN: r160467 --- gcc/ChangeLog | 5 +++++ gcc/tree-ssa-loop-niter.c | 4 ++++ 2 files changed, 9 insertions(+) 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 + + * tree-ssa-loop-niter.c (simplify_replace_tree): Do not + replace constants. + 2010-06-09 Kai Tietz * 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); -- 2.7.4