[Bug tree-optimization/81554] [8 Regression] 25% performance regression in Himeno benchmark

2018-01-25 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81554 Richard Biener changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|---

[Bug tree-optimization/81554] [8 Regression] 25% performance regression in Himeno benchmark

2017-07-26 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81554 --- Comment #3 from Richard Biener --- Created attachment 41833 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41833&action=edit patch While we do this transform late with the attached patch it doesn't help (noisy) performance. Before:

[Bug tree-optimization/81554] [8 Regression] 25% performance regression in Himeno benchmark

2017-07-26 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81554 Richard Biener changed: What|Removed |Added Status|UNCONFIRMED |ASSIGNED Last reconfirmed|

[Bug tree-optimization/81554] [8 Regression] 25% performance regression in Himeno benchmark

2017-07-25 Thread pinskia at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81554 --- Comment #1 from Andrew Pinski --- #define MR(mt,n,r,c,d) mt->m[(n) * mt->mrows * mt->mcols * mt->mdeps + (r) * mt->mcols* mt->mdeps + (c) * mt->mdeps + (d)] #define MR(mt,n,r,c,d) mt->m[(((n) * mt->mrows + (r)) * mt->mcols + (c)) * mt->md

[Bug tree-optimization/81554] [8 Regression] 25% performance regression in Himeno benchmark

2017-07-25 Thread pinskia at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81554 Andrew Pinski changed: What|Removed |Added Keywords||missed-optimization Target Milestone|-