BugFix: test can only be created for a&b == 0 or a&b != 0

ir/be/ia32/ia32_transform.c

@@ -1284,9 +1284,11 @@ static ir_node *gen_Cond(ia32_transform_env_t *env) {
 		expr = get_expr_op(cmp_a, cmp_b);
 
 		if (cnst && expr) {
-			if (mode_is_int(get_irn_mode(expr))) {
+			pn_Cmp pnc = get_Proj_proj(sel);
+
+			if ((pnc == pn_Cmp_Eq || pnc == pn_Cmp_Lg) && mode_is_int(get_irn_mode(expr))) {
 				if (classify_tarval(get_ia32_Immop_tarval(cnst)) == TV_CLASSIFY_NULL) {
-					/* a Cmp A, 0 */
+					/* a Cmp A =/!= 0 */
 					ir_node    *op1  = expr;
 					ir_node    *op2  = expr;
 					ir_node    *and  = skip_Proj(expr);