Re: [PATCH V2] rs6000: Refine unroll factor with target unroll_adjust hook.

2019-10-31 Thread Segher Boessenkool
Hi! On Thu, Oct 31, 2019 at 10:19:49AM +0800, Jiufu Guo wrote: > Segher Boessenkool writes: > > On Wed, Oct 30, 2019 at 11:34:42AM +0800, Jiufu Guo wrote: > >> In this patch, loop unroll adjust hook is introduced for powerpc. In this > >> hook, > >> we can do target related hueristic adjustment.

Re: [PATCH V2] rs6000: Refine unroll factor with target unroll_adjust hook.

2019-10-30 Thread Jiufu Guo
Segher Boessenkool writes: > Hi! > > On Wed, Oct 30, 2019 at 11:34:42AM +0800, Jiufu Guo wrote: >> In this patch, loop unroll adjust hook is introduced for powerpc. In this >> hook, >> we can do target related hueristic adjustment. For this patch, we tunned for >> O2 to unroll small loops with s

Re: [PATCH V2] rs6000: Refine unroll factor with target unroll_adjust hook.

2019-10-30 Thread Segher Boessenkool
Hi! On Wed, Oct 30, 2019 at 11:34:42AM +0800, Jiufu Guo wrote: > In this patch, loop unroll adjust hook is introduced for powerpc. In this > hook, > we can do target related hueristic adjustment. For this patch, we tunned for > O2 to unroll small loops with small unroll factor (2 times), for othe

Re: [PATCH V2] rs6000: Refine unroll factor with target unroll_adjust hook.

2019-10-30 Thread Richard Biener
On Wed, 30 Oct 2019, Jiufu Guo wrote: > Hi, > > In this patch, loop unroll adjust hook is introduced for powerpc. In this > hook, > we can do target related hueristic adjustment. For this patch, we tunned for > O2 to unroll small loops with small unroll factor (2 times), for other > optimization