On Fri, Mar 27, 2015 at 7:38 AM, Marek Polacek <pola...@redhat.com> wrote:
> In this testcase we were crashing while trying to gimplify a switch, because
> the types of the switch condition and case constants didn't match.  This ICE
> started with my -Wswitch-with-enum-bit-fields fix where I used the unlowered
> type so that we're able to get hold of the enum type.  The problem with that
> is with ordinary bit-fields: we'll get the underlying type (e.g. long int),
> but subsequent perform_integral_promotions promotes that to int, see
> cp_perform_integral_promotions.  Fixed by using the type of the condition in
> case we're not dealing with an enum bit-field, i.e. do what we've been doing
> before the -Wswitch fix, which ought to make this fix very safe.
>
> Bootstrapped/regtested on x86_64-linux, ok for trunk?
>
> 2015-03-27  Marek Polacek  <pola...@redhat.com>
>
>         PR c++/65556
>         * semantics.c (finish_switch_cond): If the unlowered type is not an
>         enum, use the type of the condition.
>
>         * c-c++-common/pr65556.c: New test.
>

The new test is failing for me on x86-32 and x32:

https://gcc.gnu.org/ml/gcc-regression/2015-03/msg00392.html

-- 
H.J.

Reply via email to