On Mon, Aug 16, 2021 at 3:25 PM Hongtao Liu wrote:
>
> On Mon, Aug 16, 2021 at 3:11 PM Jakub Jelinek via Gcc-patches
> wrote:
> >
> > On Mon, Aug 16, 2021 at 01:18:38PM +0800, liuhongt via Gcc-patches wrote:
> > > + /* Accept VNxHImode and VNxQImode now. */
> > > + if (!TARGET_AVX512VL && GET_
On Mon, Aug 16, 2021 at 3:11 PM Jakub Jelinek via Gcc-patches
wrote:
>
> On Mon, Aug 16, 2021 at 01:18:38PM +0800, liuhongt via Gcc-patches wrote:
> > + /* Accept VNxHImode and VNxQImode now. */
> > + if (!TARGET_AVX512VL && GET_MODE_SIZE (mode) < 64)
> > +return false;
> > +
> > + /* vper
On Mon, Aug 16, 2021 at 01:18:38PM +0800, liuhongt via Gcc-patches wrote:
> + /* Accept VNxHImode and VNxQImode now. */
> + if (!TARGET_AVX512VL && GET_MODE_SIZE (mode) < 64)
> +return false;
> +
> + /* vpermw. */
> + if (!TARGET_AVX512BW && inner_size == 2)
> +return false;
> +
> +
Hi:
Here's updated patch which does 3 things:
1. Support vpermw/vpermb in ix86_expand_vec_one_operand_perm_avx512.
2. Support 256/128-bits vpermi2b in ix86_expand_vec_perm_vpermt2.
3. Add define_insn_and_split to optimize specific vector permutation to
opmov{dw,wb,qd}.
Bootstrapped and regtes
