fix bug in my last commit

[r18423]

diff --git a/ast2firm.c b/ast2firm.c
index 317811b..601a3b1 100644 (file)
--- a/ast2firm.c
+++ b/ast2firm.c
@@ -1377,7 +1377,7 @@ static ir_node *expression_to_firm(const expression_t *expression)
 {
        ir_node *res = _expression_to_firm(expression);
 
-       if(get_irn_mode(res) == mode_b) {
+       if(res != NULL && get_irn_mode(res) == mode_b) {
                ir_mode *mode = get_ir_mode(expression->datatype);
                res           = create_conv(NULL, res, mode);
        }