LLVM asm with constraints, and 2 operands

[Basile B.]

On Sunday, 18 July 2021 at 17:45:05 UTC, Guillaume Piolat wrote:
> On Sunday, 18 July 2021 at 16:32:46 UTC, Basile B. wrote:
>> [...]
>
> Thanks.
>
> Indeed that seems to work even when inline and optimized. 
> Registers are spilled to stack.
> A minor concern is what happens when the enclosing function is 
> extern(C) => https://d.godbolt.org/z/s6dM3a3de
> I need to check that more...

I think this should be rejected just like when you use D arrays 
in the interface of an `extern(C)` func, as C has no equivalent 
of __vector (afaik).