[Bug target/70708] Suboptimal code generated when using _mm_set_sd (X64)

[glisse at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70708

--- Comment #6 from Marc Glisse <glisse at gcc dot gnu.org> ---
(In reply to Petr from comment #3)
> Is there any workaround guys?
> 
> I was looking for some built-in that would allow me just cast `double` to
> `__m128d` without going through `_mm_set_sd()`, but leaving the high part
> undefined.

See PR68211.