[Bug rtl-optimization/125876] [13/14/15/16/17 Regression] x86: register-source vmovddup spilled to the stack instead of using the register form

[vekumar at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125876

--- Comment #9 from vekumar at gcc dot gnu.org ---
(In reply to Sarvesh Chandra from comment #8)
> Sure Richard, would an RFC to gcc-patches be apt for this issue?

Can u check if latency wise vunpcklpd is better than vmovddup for register
variants, based on that you can post patch against this PR.