[Bug tree-optimization/103195] [12 Regression] tfft2 text grows by 70% with -Ofast since r12-5113-gd70ef65692fced7a

2022-02-17 Thread jamborm at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103195 Martin Jambor changed: What|Removed |Added CC||jamborm at gcc dot gnu.org --- Comment

[Bug tree-optimization/103195] [12 Regression] tfft2 text grows by 70% with -Ofast since r12-5113-gd70ef65692fced7a

2022-01-18 Thread hubicka at kam dot mff.cuni.cz via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103195 --- Comment #6 from hubicka at kam dot mff.cuni.cz --- > So nothing to see? I guess our unit growth limit doesn't trigger because it's > a small (benchmark) unit? Yep, unit growths do not apply for very small units. ipa-cp heuristics still IMO

Re: [Bug tree-optimization/103195] [12 Regression] tfft2 text grows by 70% with -Ofast since r12-5113-gd70ef65692fced7a

2022-01-18 Thread Jan Hubicka via Gcc-bugs
> So nothing to see? I guess our unit growth limit doesn't trigger because it's > a small (benchmark) unit? Yep, unit growths do not apply for very small units. ipa-cp heuristics still IMO needs work and be based on relative speedups rather then absolute for the cutoffs.

[Bug tree-optimization/103195] [12 Regression] tfft2 text grows by 70% with -Ofast since r12-5113-gd70ef65692fced7a

2022-01-18 Thread rguenth at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103195 --- Comment #5 from Richard Biener --- So nothing to see? I guess our unit growth limit doesn't trigger because it's a small (benchmark) unit?

[Bug tree-optimization/103195] [12 Regression] tfft2 text grows by 70% with -Ofast since r12-5113-gd70ef65692fced7a

2021-11-16 Thread rguenth at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103195 Richard Biener changed: What|Removed |Added Keywords||missed-optimization Target Milestone

[Bug tree-optimization/103195] [12 Regression] tfft2 text grows by 70% with -Ofast since r12-5113-gd70ef65692fced7a

2021-11-12 Thread hubicka at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103195 Jan Hubicka changed: What|Removed |Added CC||mjambor at suse dot cz --- Comment #4 fro

[Bug tree-optimization/103195] [12 Regression] tfft2 text grows by 70% with -Ofast since r12-5113-gd70ef65692fced7a

2021-11-12 Thread hubicka at kam dot mff.cuni.cz via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103195 --- Comment #3 from hubicka at kam dot mff.cuni.cz --- > > threader stuff would be my bet, but we need to bisect this (tfft2 is also > > quite small) > > Bad bet ;) It's caused by r12-5113-gd70ef65692fced7a. Hehe, that was my guess yeterday. T

[Bug tree-optimization/103195] [12 Regression] tfft2 text grows by 70% with -Ofast since r12-5113-gd70ef65692fced7a

2021-11-12 Thread marxin at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103195 Martin Liška changed: What|Removed |Added Keywords|needs-bisection | Status|UNCONFIRMED