Fix transform_node_Cmp() (r20946): Transform Cmp(-a, -b) to Cmp(b, a), not Cmp(a...

[r21022]

diff --git a/ir/ir/iropt.c b/ir/ir/iropt.c
index ff1dcf3..efe954f 100644 (file)
--- a/ir/ir/iropt.c
+++ b/ir/ir/iropt.c
@@ -3117,10 +3117,10 @@ static ir_node *transform_node_Cmp(ir_node *n) {
 
        if (is_Minus(left) && is_Minus(right) &&
                !mode_overflow_on_unary_Minus(get_irn_mode(left))) {
-               left  = get_Minus_op(left);
-               right = get_Minus_op(right);
+               ir_node *const new_left  = get_Minus_op(right);
+               ir_node *const new_right = get_Minus_op(left);
                n = new_rd_Cmp(get_irn_dbg_info(n), current_ir_graph,
-                       get_nodes_block(n), left, right);
+                       get_nodes_block(n), new_left, new_right);
                DBG_OPT_ALGSIM0(oldn, n, FS_OPT_CMP_OP_OP);
        }
        return n;