[Bug target/101936] [12 Regression] 538.imagick_r -Ofast regression on Kabylake since g:872da9a6f664a06d73c987aa0cb2e5b830158a10

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101936

Martin Liška  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

--- Comment #7 from Martin Liška  ---
The performance is back, thus closing..

[Bug target/101936] [12 Regression] 538.imagick_r -Ofast regression on Kabylake since g:872da9a6f664a06d73c987aa0cb2e5b830158a10

[crazylht at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101936

--- Comment #6 from Hongtao.liu  ---
(In reply to Martin Liška from comment #5)
> > https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=32.507.0
> > 
> 
> Looking at LNT, the benchmark score is not back after the reversion of the
> patch.
> Maybe we face now PR101935?

probably.

[Bug target/101936] [12 Regression] 538.imagick_r -Ofast regression on Kabylake since g:872da9a6f664a06d73c987aa0cb2e5b830158a10

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101936

--- Comment #5 from Martin Liška  ---
> https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=32.507.0
> 

Looking at LNT, the benchmark score is not back after the reversion of the
patch.
Maybe we face now PR101935?

[Bug target/101936] [12 Regression] 538.imagick_r -Ofast regression on Kabylake since g:872da9a6f664a06d73c987aa0cb2e5b830158a10

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101936

--- Comment #4 from CVS Commits  ---
The master branch has been updated by hongtao Liu :

https://gcc.gnu.org/g:1db70e61a92978377a648bbd90e383859fc0126b

commit r12-3011-g1db70e61a92978377a648bbd90e383859fc0126b
Author: liuhongt 
Date:   Tue Aug 17 17:29:06 2021 +0800

Revert "Add the member integer_to_sse to processor_cost as a cost
simulation for movd/pinsrd. It will be used to calculate the cost of
vec_construct."

This reverts commit 872da9a6f664a06d73c987aa0cb2e5b830158a10.

PR target/101936
PR target/101929

[Bug target/101936] [12 Regression] 538.imagick_r -Ofast regression on Kabylake since g:872da9a6f664a06d73c987aa0cb2e5b830158a10

[crazylht at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101936

--- Comment #3 from Hongtao.liu  ---
(In reply to Hongtao.liu from comment #2)
> I'll take a look at why there's the regression and revert my patch.
> 
I can't reproduce it on my skylake client, anyway i will revert my patch.
> There's already another regression by this commit
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101929

[Bug target/101936] [12 Regression] 538.imagick_r -Ofast regression on Kabylake since g:872da9a6f664a06d73c987aa0cb2e5b830158a10

[crazylht at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101936

--- Comment #2 from Hongtao.liu  ---
I'll take a look at why there's the regression and revert my patch.

There's already another regression by this commit
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101929