On Wed, Jan 30, 2019 at 3:42 PM Alexander Monakov wrote:
>
> On Mon, 21 Jan 2019, Alexander Monakov wrote:
>
> > Ah, I see now. I agree transparent_union ought to work, but today both GCC
> > and Clang will reject such attempt; I've filed PR 88955 for the GCC issue.
> >
> > So unfortunately such
On Mon, 21 Jan 2019, Alexander Monakov wrote:
> Ah, I see now. I agree transparent_union ought to work, but today both GCC
> and Clang will reject such attempt; I've filed PR 88955 for the GCC issue.
>
> So unfortunately such code would still need a cast or an unnamed temporary,
> which may be r
On Mon, 21 Jan 2019, Richard Biener wrote:
> > Sorry, I don't see what you mean here; can you give an example or elaborate?
>
> when you call a function with v4si signature but want to pass it a result
> from a __mm intrinsic you'd need a temporary union to do the marshalling.
> I think you can u
On Mon, Jan 21, 2019 at 10:14 AM Alexander Monakov wrote:
>
> On Mon, 21 Jan 2019, Richard Biener wrote:
>
> > I'm not sure whether it's permitted to use this in C++ or not (and whether
> > the C usage is now officially sanctioned other than via a non-normative
> > footnote) - but at least GCC wil
On Mon, 21 Jan 2019, Richard Biener wrote:
> I'm not sure whether it's permitted to use this in C++ or not (and whether
> the C usage is now officially sanctioned other than via a non-normative
> footnote) - but at least GCC will guarantee that it works.
My impression is that, via the "active mem
On Sun, Jan 20, 2019 at 11:40 AM Alexander Monakov wrote:
>
> Hi,
>
> PR 88698 ("Relax generic vector conversions") is asking to be more permissive
> about type compatibility for generic vector types. While I don't think that's
> a good idea per se, from a "compiler user" point of view I also see
Hi,
PR 88698 ("Relax generic vector conversions") is asking to be more permissive
about type compatibility for generic vector types. While I don't think that's
a good idea per se, from a "compiler user" point of view I also see how writing
code for SSE/AVX using both generic vectors and x86 intri
