https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69241
--- Comment #8 from Abe <abe_skolnik at yahoo dot com> ---
Slightly more reduced [2 bytes less? ;-)]...
__attribute__((noreturn))void V(int);
struct R{R(const R&){}};
R f(){V(0);}
R c(){V(0);}
This might be the most-reduced-possible form of this test case.
Experimentation shows that:
* removing the second function definition removes the ICE
* removing the user-defined copy ctor removes the ICE
* removing the int param. from 'V' removes the ICE
