Re: [PATCH 2/2] x86: slightly correct / simplify *vec_extractv2ti

2023-07-05 Thread Hongtao Liu via Gcc-patches
On Wed, Jul 5, 2023 at 6:22 PM Hongtao Liu wrote: > > On Wed, Jul 5, 2023 at 5:03 PM Jan Beulich wrote: > > > > On 05.07.2023 10:47, Hongtao Liu wrote: > > > On Wed, Jul 5, 2023 at 4:01 PM Jan Beulich via Gcc-patches > > > wrote: > > >> > > >> V2TImode values cannot appear in the upper 16 YMM re

Re: [PATCH 2/2] x86: slightly correct / simplify *vec_extractv2ti

2023-07-05 Thread Hongtao Liu via Gcc-patches
On Wed, Jul 5, 2023 at 5:03 PM Jan Beulich wrote: > > On 05.07.2023 10:47, Hongtao Liu wrote: > > On Wed, Jul 5, 2023 at 4:01 PM Jan Beulich via Gcc-patches > > wrote: > >> > >> V2TImode values cannot appear in the upper 16 YMM registers without > >> AVX512VL being enabled. Therefore forcing 512-

Re: [PATCH 2/2] x86: slightly correct / simplify *vec_extractv2ti

2023-07-05 Thread Jan Beulich via Gcc-patches
On 05.07.2023 10:47, Hongtao Liu wrote: > On Wed, Jul 5, 2023 at 4:01 PM Jan Beulich via Gcc-patches > wrote: >> >> V2TImode values cannot appear in the upper 16 YMM registers without >> AVX512VL being enabled. Therefore forcing 512-bit mode (also not >> reflected in the "mode" attribute) is point

Re: [PATCH 2/2] x86: slightly correct / simplify *vec_extractv2ti

2023-07-05 Thread Hongtao Liu via Gcc-patches
On Wed, Jul 5, 2023 at 4:01 PM Jan Beulich via Gcc-patches wrote: > > V2TImode values cannot appear in the upper 16 YMM registers without > AVX512VL being enabled. Therefore forcing 512-bit mode (also not > reflected in the "mode" attribute) is pointless. Please set isa attribute for alternative 1