When I'm working on PR112443, I notice there's some misoptimizations:
after we fold _mm{,256}_blendv_epi8/pd/ps into gimple, the backend
fails to combine it back to v{,p}blendv{v,ps,pd} since the pattern is
too complicated, so I think maybe we should hanlde it in the gimple
level.
The dump is like
> since you are looking at TYPE_PRECISION below you want
> VECTOR_INTIEGER_TYPE_P here as well? The alternative
> would be to compare TYPE_SIZE.
>
> Some of the checks feel redundant but are probably good for
> documentation purposes.
>
> OK with using VECTOR_INTIEGER_TYPE_P
Actually, the data typ
On Fri, Nov 10, 2023 at 2:14 PM liuhongt wrote:
>
> When I'm working on PR112443, I notice there's some misoptimizations:
> after we fold _mm{,256}_blendv_epi8/pd/ps into gimple, the backend
> fails to combine it back to v{,p}blendv{v,ps,pd} since the pattern is
> too complicated, so I think maybe
Update in V2:
1) Add some comments before the pattern.
2) Remove ? from view_convert.
Bootstrapped and regtested on x86_64-pc-linux-gnu{-m32,}.
Ok for trunk?
When I'm working on PR112443, I notice there's some misoptimizations:
after we fold _mm{,256}_blendv_epi8/pd/ps into gimple, the backend
fa
ping.
On Thu, Nov 16, 2023 at 6:49 PM liuhongt wrote:
>
> Update in V2:
> 1) Add some comments before the pattern.
> 2) Remove ? from view_convert.
>
> Bootstrapped and regtested on x86_64-pc-linux-gnu{-m32,}.
> Ok for trunk?
>
> When I'm working on PR112443, I notice there's some misoptimization
On Thu, Nov 16, 2023 at 11:49 AM liuhongt wrote:
>
> Update in V2:
> 1) Add some comments before the pattern.
> 2) Remove ? from view_convert.
>
> Bootstrapped and regtested on x86_64-pc-linux-gnu{-m32,}.
> Ok for trunk?
>
> When I'm working on PR112443, I notice there's some misoptimizations:
> a
On Mon, Dec 11, 2023 at 7:51 AM liuhongt wrote:
>
> > since you are looking at TYPE_PRECISION below you want
> > VECTOR_INTIEGER_TYPE_P here as well? The alternative
> > would be to compare TYPE_SIZE.
> >
> > Some of the checks feel redundant but are probably good for
> > documentation purposes.
On Mon, Dec 11, 2023 at 4:14 PM Richard Biener
wrote:
>
> On Mon, Dec 11, 2023 at 7:51 AM liuhongt wrote:
> >
> > > since you are looking at TYPE_PRECISION below you want
> > > VECTOR_INTIEGER_TYPE_P here as well? The alternative
> > > would be to compare TYPE_SIZE.
> > >
> > > Some of the check
