On Mon, May 23, 2011 at 5:38 PM, Jason Merrill <ja...@redhat.com> wrote:
> On 05/23/2011 11:01 AM, Richard Guenther wrote:
>>
>> Ok.  Though I wonder where you enter folding before you check semantic
>> validity.
>
> The problem is in c-common:shorten_binary_op, which uses get_narrower and
> then calls common_type on the types of the results.  There is no common type
> between a scoped enum and char, so common_type returns NULL_TREE, so we get
> a SEGV in c_common_signed_or_unsigned_type.
>
> Do you think I should change shorten_binary_op instead?

Yeah, that might constrain it to C family languages.  shorten_binary_op
is one of our premature optimization things anyway, best to slowly
go away ...

Richard.

> Jason
>

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