[Bug target/106017] [PowerPC] No array-to-pointer conversion for MMA accumulator

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106017

--- Comment #3 from Segher Boessenkool <segher at gcc dot gnu.org> ---
(In reply to Peter Bergner from comment #2)
> We do not want or allow automatic conversions between the opaque
> __vector_pair and __vector_quad types and other types and those are
> correctly disallowed there.

Of course, but that is not what this is about...

> As for the pointer conversions tested there, I guess they came along for the
> ride?  Nemanja, do you remember the history there?  Or does LLVM allow the
> pointer conversions and it's just GCC that complains?

... this is.

Possibly the restriction prevents some ICEs elsewhere, but those just need to
be solved then, not hidden.