From 99c68579e5ffe20ed5bc4cdf82633a31ed649c21 Mon Sep 17 00:00:00 2001 From: matz Date: Fri, 19 Nov 2010 20:56:27 +0000 Subject: PR tree-optimization/46077 * tree-chrec.c (eq_evolutions_p): Accept some expressions. testsuite/ PR tree-optimization/46077 * gcc.dg/vect/O3-pr46077.c: New testcase. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@166958 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/tree-chrec.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'gcc/tree-chrec.c') diff --git a/gcc/tree-chrec.c b/gcc/tree-chrec.c index 72955108c7b..0c13c21bfe8 100644 --- a/gcc/tree-chrec.c +++ b/gcc/tree-chrec.c @@ -1433,6 +1433,16 @@ eq_evolutions_p (const_tree chrec0, const_tree chrec1) return (CHREC_VARIABLE (chrec0) == CHREC_VARIABLE (chrec1) && eq_evolutions_p (CHREC_LEFT (chrec0), CHREC_LEFT (chrec1)) && eq_evolutions_p (CHREC_RIGHT (chrec0), CHREC_RIGHT (chrec1))); + + case PLUS_EXPR: + case MULT_EXPR: + case MINUS_EXPR: + case POINTER_PLUS_EXPR: + return eq_evolutions_p (TREE_OPERAND (chrec0, 0), + TREE_OPERAND (chrec1, 0)) + && eq_evolutions_p (TREE_OPERAND (chrec0, 1), + TREE_OPERAND (chrec1, 1)); + default: return false; } -- cgit v1.2.1