[Bug tree-optimization/103425] [12 Regression] 48% tramp3d regression between g:df1a0d526e2e4c75 and g:9e026da720091704 with -Ofast -march=native at Zen

2021-12-08 Thread marxin at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103425

Martin Liška  changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |FIXED

--- Comment #5 from Martin Liška  ---
It's fixed on both LNT testers.

[Bug tree-optimization/103425] [12 Regression] 48% tramp3d regression between g:df1a0d526e2e4c75 and g:9e026da720091704 with -Ofast -march=native at Zen

2021-11-25 Thread hubicka at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103425

--- Comment #4 from Jan Hubicka  ---
In meanwhile other testers picked the revision and it seems that indeed only
benzen machine reports this (it is AMD EPYC 7702).  So it looks
microarchitecture specific issue.

[Bug tree-optimization/103425] [12 Regression] 48% tramp3d regression between g:df1a0d526e2e4c75 and g:9e026da720091704 with -Ofast -march=native at Zen

2021-11-25 Thread rguenth at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103425

Richard Biener  changed:

   What|Removed |Added

 Target||x86_64-*-*
Summary|48% tramp3d regression  |[12 Regression] 48% tramp3d
   |between g:df1a0d526e2e4c75  |regression between
   |and g:9e026da720091704 with |g:df1a0d526e2e4c75 and
   | -Ofast -march=native at|g:9e026da720091704 with
   |Zen |-Ofast -march=native at Zen
   Keywords||needs-bisection
   Target Milestone|--- |12.0

--- Comment #3 from Richard Biener  ---
Not visible on Haswell (for now).