Re: Question on tree LIM

2021-07-04 Thread Kewen.Lin via Gcc
on 2021/7/2 下午7:28, Richard Biener wrote: > On Fri, Jul 2, 2021 at 11:05 AM Kewen.Lin wrote: >> >> Hi Richard, >> >> on 2021/7/2 下午4:07, Richard Biener wrote: >>> On Fri, Jul 2, 2021 at 5:34 AM Kewen.Lin via Gcc wrote: Hi, I am investigating one degradation related to SPEC2017

Re: Question on tree LIM

2021-07-02 Thread Richard Biener via Gcc
On Fri, Jul 2, 2021 at 11:05 AM Kewen.Lin wrote: > > Hi Richard, > > on 2021/7/2 下午4:07, Richard Biener wrote: > > On Fri, Jul 2, 2021 at 5:34 AM Kewen.Lin via Gcc wrote: > >> > >> Hi, > >> > >> I am investigating one degradation related to SPEC2017 exchange2_r, > >> with loop vectorization on at

Re: Question on tree LIM

2021-07-02 Thread Kewen.Lin via Gcc
Hi Richard, on 2021/7/2 下午4:07, Richard Biener wrote: > On Fri, Jul 2, 2021 at 5:34 AM Kewen.Lin via Gcc wrote: >> >> Hi, >> >> I am investigating one degradation related to SPEC2017 exchange2_r, >> with loop vectorization on at -O2, it degraded by 6%. By some >> isolation, I found it isn't dire

Re: Question on tree LIM

2021-07-02 Thread Richard Biener via Gcc
On Fri, Jul 2, 2021 at 5:34 AM Kewen.Lin via Gcc wrote: > > Hi, > > I am investigating one degradation related to SPEC2017 exchange2_r, > with loop vectorization on at -O2, it degraded by 6%. By some > isolation, I found it isn't directly caused by vectorization itself, > but exposed by vectoriza