[Bug target/109797] 456.hmmer compiled with -O2 -flto regressed by 15% on AMD zen3 between r14-487-g6f18f344338b37 and r14-540-gb7fe38c14e5f1b

[ubizjak at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109797

--- Comment #3 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Andrew Pinski from comment #1)
> Maybe:
> https://gcc.gnu.org/git/?p=gcc.git;a=commit;
> h=919642fa4b2bc4c32910336dd200d53766801c80

Is this with -msse4? In case of TARGET_SSE4_1 the revision just emits PMULLD,
otherwise it emits PMULUDQ with corresponding PUNPCKLDQ and PSHUFD shuffles.