On Tue, Feb 12, 2019 at 12:29 PM Uros Bizjak <ubiz...@gmail.com> wrote:
>
> On 2/12/19, H.J. Lu <hjl.to...@gmail.com> wrote:
>
> >> This way, it is clear that we enable alternative 0 only for native
> >> mmx. It looks to me that we need to add similar treatment to a couple
> >> of other patterns in sse.md, where we allow "y" constraint, e.g.
> >> *vec_concatv2sf_sse, *vec_concatv2si_sse4_1, etc.
> >>
> >
> > I will take a look.
>
> From a quick look to mentioned pattern, I have see that a couple of
> movd with XMM reg are wrongly marked as sse2 isa. movd/movq with MMX
> regs are base MMX instructions.

I opened:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89343

-- 
H.J.

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