zahiraam wrote:
> > MSVC always uses 64-bit `long double`. I don't know anything about attempts
> > to use 80-bit `long double` on Windows except that they're asking for tons
> > of complexity.
>
> Right, that was what I thought (a few years ago I was _very_ jealous of win64
> making that choice).
>
> To understand what clang might be doing wrong, what happens if someone were
> to do something along the lines of (stealing from original failure) this?
>
> ```c++
> #include <array>
>
> struct Klass { some_overaligned_type_t field; };
>
>
> void test() {
>
> std::array<Klass, 16> matrix;
> matrix.fill({});
> }
> ```
>
> would that be expected to work?
Yes, with this patch, `std::array<Klass, overaligned_type>` works correctly
and gets the proper alignment
even with `#pragma pack`.
https://github.com/llvm/llvm-project/pull/208256
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