[Bug target/87743] Vectorizer doesn't support conversion of different sizes

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87743

--- Comment #6 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to H.J. Lu from comment #5)
> (In reply to Andrew Pinski from comment #4)
> > Even for x86_64:
> >         vmovdqa src(%rip), %xmm0
> >         vpmovsxdq       %xmm0, %xmm1
> >         vpsrldq $8, %xmm0, %xmm0
> >         vpmovsxdq       %xmm0, %xmm0
> >         vmovaps %xmm1, dst(%rip)
> >         vmovaps %xmm0, 16+dst(%rip)
> >         ret
> 
> Only when AVX2 is disabled.

I mean YMM disable.