[PATCH] D53919: [X86] Don't allow illegal vector types to return by direct value on x86-64.

[Eric Christopher via cfe-commits]

On Mon, Nov 5, 2018 at 9:45 AM H.J Lu via Phabricator <
reviews at reviews.llvm.org> wrote:

> hjl.tools added a comment.
>
> In https://reviews.llvm.org/D53919#1287510, @echristo wrote:
>
> > In https://reviews.llvm.org/D53919#1282994, @hjl.tools wrote:
> >
> > > In https://reviews.llvm.org/D53919#1282952, @efriedma wrote:
> > >
> > > > With both 3.3 and trunk (I don't have a 7.0 handy; I can build it if
> it would be helpful):
> > >
> > >
> > > Please try clang 2.6 on both testcases.
> >
> >
> > From the releases:
> >
> > 23 Oct 2009   2.6
> >
> > ... why would you care about a 9 year old version of clang?
>
>
> It is about ABI consistency.  When AVX isn't enabled, the old and
> compilers should
> use the same calling convention.
>

Seems like 3.3 to present should be sufficient.

-eric
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