Re: [PATCH v2] x86: Add TARGET_OMIT_VZEROUPPER_AFTER_AVX_READ_ZERO

2022-02-22 Thread H.J. Lu via Gcc-patches
On Mon, Feb 21, 2022 at 6:43 PM Hongtao Liu wrote: > > On Tue, Feb 22, 2022 at 2:35 AM H.J. Lu wrote: > > > > On Sun, Feb 20, 2022 at 6:01 PM Hongtao Liu wrote: > > > > > > On Thu, Feb 17, 2022 at 9:56 PM H.J. Lu wrote: > > > > > > > > On Thu, Feb 17, 2022 at 08:51:31AM +0100, Uros Bizjak

Re: [PATCH v2] x86: Add TARGET_OMIT_VZEROUPPER_AFTER_AVX_READ_ZERO

2022-02-21 Thread Hongtao Liu via Gcc-patches
On Tue, Feb 22, 2022 at 2:35 AM H.J. Lu wrote: > > On Sun, Feb 20, 2022 at 6:01 PM Hongtao Liu wrote: > > > > On Thu, Feb 17, 2022 at 9:56 PM H.J. Lu wrote: > > > > > > On Thu, Feb 17, 2022 at 08:51:31AM +0100, Uros Bizjak wrote: > > > > On Thu, Feb 17, 2022 at 6:25 AM Hongtao Liu via

Re: [PATCH v2] x86: Add TARGET_OMIT_VZEROUPPER_AFTER_AVX_READ_ZERO

2022-02-21 Thread H.J. Lu via Gcc-patches
On Sun, Feb 20, 2022 at 6:01 PM Hongtao Liu wrote: > > On Thu, Feb 17, 2022 at 9:56 PM H.J. Lu wrote: > > > > On Thu, Feb 17, 2022 at 08:51:31AM +0100, Uros Bizjak wrote: > > > On Thu, Feb 17, 2022 at 6:25 AM Hongtao Liu via Gcc-patches > > > wrote: > > > > > > > > On Thu, Feb 17, 2022 at 12:26

Re: [PATCH v2] x86: Add TARGET_OMIT_VZEROUPPER_AFTER_AVX_READ_ZERO

2022-02-20 Thread Hongtao Liu via Gcc-patches
On Thu, Feb 17, 2022 at 9:56 PM H.J. Lu wrote: > > On Thu, Feb 17, 2022 at 08:51:31AM +0100, Uros Bizjak wrote: > > On Thu, Feb 17, 2022 at 6:25 AM Hongtao Liu via Gcc-patches > > wrote: > > > > > > On Thu, Feb 17, 2022 at 12:26 PM H.J. Lu via Gcc-patches > > > wrote: > > > > > > > > Reading

[PATCH v2] x86: Add TARGET_OMIT_VZEROUPPER_AFTER_AVX_READ_ZERO

2022-02-17 Thread H.J. Lu via Gcc-patches
On Thu, Feb 17, 2022 at 08:51:31AM +0100, Uros Bizjak wrote: > On Thu, Feb 17, 2022 at 6:25 AM Hongtao Liu via Gcc-patches > wrote: > > > > On Thu, Feb 17, 2022 at 12:26 PM H.J. Lu via Gcc-patches > > wrote: > > > > > > Reading YMM registers with all zero bits needs VZEROUPPER on Sandy Bride, >