added check for Bad in Mul optimization

[r15774]

diff --git a/ir/ir/iropt.c b/ir/ir/iropt.c
index a526a41..55b8f6b 100644 (file)
--- a/ir/ir/iropt.c
+++ b/ir/ir/iropt.c
@@ -2295,6 +2295,9 @@ static ir_node *transform_node_Mul(ir_node *n) {
        ir_node *a = get_Mul_left(n);
        ir_node *b = get_Mul_right(n);
 
+       if (is_Bad(a) || is_Bad(b))
+               return n;
+
        if (mode != get_irn_mode(a))
                return transform_node_Mul2n(n, mode);