Re: [PATCH] Set AVX128_OPTIMAL for all avx targets.

2019-11-12 Thread H.J. Lu
On Tue, Nov 12, 2019 at 2:48 AM Hongtao Liu wrote: > > On Tue, Nov 12, 2019 at 4:41 PM Richard Biener > wrote: > > > > On Tue, Nov 12, 2019 at 9:29 AM Hongtao Liu wrote: > > > > > > On Tue, Nov 12, 2019 at 4:19 PM Richard Biener > > > wrote: > > > > > > > > On Tue, Nov 12, 2019 at 8:36 AM Hongt

Re: [PATCH] Set AVX128_OPTIMAL for all avx targets.

2019-11-12 Thread Hongtao Liu
On Tue, Nov 12, 2019 at 4:41 PM Richard Biener wrote: > > On Tue, Nov 12, 2019 at 9:29 AM Hongtao Liu wrote: > > > > On Tue, Nov 12, 2019 at 4:19 PM Richard Biener > > wrote: > > > > > > On Tue, Nov 12, 2019 at 8:36 AM Hongtao Liu wrote: > > > > > > > > Hi: > > > > This patch is about to set

Re: [PATCH] Set AVX128_OPTIMAL for all avx targets.

2019-11-12 Thread Richard Biener
On Tue, Nov 12, 2019 at 9:29 AM Hongtao Liu wrote: > > On Tue, Nov 12, 2019 at 4:19 PM Richard Biener > wrote: > > > > On Tue, Nov 12, 2019 at 8:36 AM Hongtao Liu wrote: > > > > > > Hi: > > > This patch is about to set X86_TUNE_AVX128_OPTIMAL as default for > > > all AVX target because we foun

Re: [PATCH] Set AVX128_OPTIMAL for all avx targets.

2019-11-12 Thread Hongtao Liu
On Tue, Nov 12, 2019 at 4:29 PM Richard Biener wrote: > > On Tue, Nov 12, 2019 at 9:19 AM Richard Biener > wrote: > > > > On Tue, Nov 12, 2019 at 8:36 AM Hongtao Liu wrote: > > > > > > Hi: > > > This patch is about to set X86_TUNE_AVX128_OPTIMAL as default for > > > all AVX target because we f

Re: [PATCH] Set AVX128_OPTIMAL for all avx targets.

2019-11-12 Thread Hongtao Liu
On Tue, Nov 12, 2019 at 4:19 PM Richard Biener wrote: > > On Tue, Nov 12, 2019 at 8:36 AM Hongtao Liu wrote: > > > > Hi: > > This patch is about to set X86_TUNE_AVX128_OPTIMAL as default for > > all AVX target because we found there's still performance gap between > > 128-bit auto-vectorization

Re: [PATCH] Set AVX128_OPTIMAL for all avx targets.

2019-11-12 Thread Richard Biener
On Tue, Nov 12, 2019 at 9:19 AM Richard Biener wrote: > > On Tue, Nov 12, 2019 at 8:36 AM Hongtao Liu wrote: > > > > Hi: > > This patch is about to set X86_TUNE_AVX128_OPTIMAL as default for > > all AVX target because we found there's still performance gap between > > 128-bit auto-vectorization

Re: [PATCH] Set AVX128_OPTIMAL for all avx targets.

2019-11-12 Thread Richard Biener
On Tue, Nov 12, 2019 at 8:36 AM Hongtao Liu wrote: > > Hi: > This patch is about to set X86_TUNE_AVX128_OPTIMAL as default for > all AVX target because we found there's still performance gap between > 128-bit auto-vectorization and 256-bit auto-vectorization even with > epilog vectorized. > Th

[PATCH] Set AVX128_OPTIMAL for all avx targets.

2019-11-11 Thread Hongtao Liu
Hi: This patch is about to set X86_TUNE_AVX128_OPTIMAL as default for all AVX target because we found there's still performance gap between 128-bit auto-vectorization and 256-bit auto-vectorization even with epilog vectorized. The performance influence of setting avx128_optimal as default on SP