[Bug c++/77427] [7 Regression] ice when canonical types differ for identical types

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77427

Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2016-08-31
                 CC|                            |trippels at gcc dot gnu.org
            Summary|ice when canonical types    |[7 Regression] ice when
                   |differ for identical types  |canonical types differ for
                   |                            |identical types
     Ever confirmed|0                           |1

--- Comment #1 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
typedef __builtin_va_list a;
void b(int, a &);
struct c {
  operator a &();
  operator const a &();
};
void d() {
  c a;
  b(0, a);
}