Re: [PATCH][AARCH64] Enable compare branch fusion

2020-01-17 Thread Wilco Dijkstra
Hi Richard, > If you're able to say for the record which cores you tested, then that'd > be good. I've mostly checked it on Cortex-A57 - if there is any affect, it would be on older cores. > OK, thanks.  I agree there doesn't seem to be an obvious reason why this > would pessimise any cores sign

Re: [PATCH][AARCH64] Enable compare branch fusion

2020-01-17 Thread Richard Sandiford
Wilco Dijkstra writes: > Enable the most basic form of compare-branch fusion since various CPUs > support it. This has no measurable effect on cores which don't support > branch fusion, but increases fusion opportunities on cores which do. If you're able to say for the record which cores you test

Re: [PATCH][AARCH64] Enable compare branch fusion

2020-01-16 Thread Wilco Dijkstra
ping Enable the most basic form of compare-branch fusion since various CPUs support it. This has no measurable effect on cores which don't support branch fusion, but increases fusion opportunities on cores which do. Bootstrapped on AArch64, OK for commit? ChangeLog: 2019-12-24 Wilco Dijkstra

[PATCH][AARCH64] Enable compare branch fusion

2019-12-24 Thread Wilco Dijkstra
Enable the most basic form of compare-branch fusion since various CPUs support it. This has no measurable effect on cores which don't support branch fusion, but increases fusion opportunities on cores which do. Bootstrapped on AArch64, OK for commit? ChangeLog: 2019-12-24 Wilco Dijkstra