[Bug target/80833] 32-bit x86 causes store-forwarding stalls for int64_t -> xmm

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80833

--- Comment #7 from Uroš Bizjak <ubizjak at gmail dot com> ---
Created attachment 41412
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41412&action=edit
Prototype patch

Patch that emits mov/pinsr or mov/pextr pairs for DImode (x86_32) and TImode
(x86_64) moves.