[Bug target/102264] Macro Intrinsics fail to use all the registers on the machine

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102264

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #3)
> Maybe 'x' is simply the wrong constraint?  Try 'y'.

It is 'v':

v
Any EVEX encodable SSE register (%xmm0-%xmm31).