[Bug target/110649] [14 Regression] 25% sphinx3 spec2006 regression on Ice Lake and zen since g:r14-2369-g3a61ca1b925653 (2023-07-06)

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110649

Jan Hubicka <hubicka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://gcc.gnu.org/bugzill
                   |                            |a/show_bug.cgi?id=110586

--- Comment #15 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
It seems that both this PR nad PR110586 boils down to worse IRA and scheduling
due to corrected profile.  I wonder if the artifically increased frequency of
former bodies of vectorized loops does not suggest that IRA may take into
account that spilling in code with long latency instructions is worse than
spiling elsehwere.