https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97328

--- Comment #4 from Patrick Palka <ppalka at gcc dot gnu.org> ---
(In reply to Marek Polacek from comment #3)
> (In reply to Patrick Palka from comment #2)
> > When 'storage' is a struct instead of a union, i.e. for the testcase
> > 
> > template <typename T, int N>
> > struct vector {
> >     struct storage { 
> >         T t; 
> >         constexpr  storage() {}
> >     } data[N];
> > };
> > 
> > constexpr auto foo() {
> >     vector<char, 8> i;
> >     return i;
> > }
> > auto f = foo();
> > 
> > we started to ICE earlier, since r279019:
> > 
> >    PR c++/91353 - P1331R2: Allow trivial default init in constexpr contexts.
> 
> Ah.  Feel free to hand this PR to me then (that is, if you don't want it
> anymore).

I have a fix, I think :) Will post it to the ML soon.

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