Fix ICE with -Wduplicated-branches (PR c/79199)

[Richard Biener]

On Thu, Jan 26, 2017 at 1:20 PM, Jakub Jelinek <jakub@redhat.com> wrote:
> On Thu, Jan 26, 2017 at 01:17:03PM +0100, Richard Biener wrote:
>> On Thu, Jan 26, 2017 at 12:21 PM, Marek Polacek <polacek@redhat.com> wrote:
>> > This testcase was breaking because we found ourselves in operand_equal_p
>> > with a COND_EXPR whose operand 2 was null -- i.e., missing else branch,
>> > which won't happen for ? : but can happen here via -Wduplicated-branches.
>> >
>> > Bootstrapped/regtested on x86_64-linux, ok for trunk?
>>
>> I think NULL isn't really allowed, it has to be sth of void type instead.
>
> You mean void_node, right?

Yes.

>
>         Jakub