On Sun, Jun 15, 2014 at 09:32:27PM +0200, Sam Ravnborg wrote:
> diff --git a/expand.c b/expand.c
> index 0f6720c..4a96de4 100644
> --- a/expand.c
> +++ b/expand.c
> @@ -187,7 +187,7 @@ static int simplify_int_binop(struct expression *expr,
> struct symbol *ctype)
> return 0;
> r = right->value;
> if (expr->op == SPECIAL_LEFTSHIFT || expr->op == SPECIAL_RIGHTSHIFT) {
> - if (r >= ctype->bit_size) {
> + if (expr->flags & Int_const_expr && r >= ctype->bit_size) {
Thanks! I had no idea how to start writing a fix for this, but the test
should be:
if (expr->right->flags & Int_const_expr
Otherwise both sides of the shift have to be const.
> if (conservative)
> return 0;
> r = check_shift_count(expr, ctype, r);
>
regards,
dan carpenter
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