On Mon, Jun 16, 2014 at 10:40:19AM +0300, Dan Carpenter wrote:
> 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.
Thanks - will fix.
I will update the test case to check for this, and
then send a proper patch.
Sam
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