+ case EXPR_BINARY_LOGICAL_AND: {
+ expression_t const *const left = expression->binary.left;
+ if (!is_constant_expression(left))
+ return false;
+ if (fold_constant(left) == 0)
+ return true;
+ return is_constant_expression(expression->binary.right);
+ }
+
+ case EXPR_BINARY_LOGICAL_OR: {
+ expression_t const *const left = expression->binary.left;
+ if (!is_constant_expression(left))
+ return false;
+ if (fold_constant(left) != 0)
+ return true;
+ return is_constant_expression(expression->binary.right);
+ }
+