[PATCH] x86: Handle -mavx512vpopcntdq for -march=native

[Uros Bizjak]

On Sat, May 23, 2020 at 5:07 PM H.J. Lu <hjl.tools@gmail.com> wrote:
>
> On Fri, May 22, 2020 at 12:42 AM Uros Bizjak <ubizjak@gmail.com> wrote:
> >
> > On Thu, May 21, 2020 at 2:54 PM H.J. Lu <hjl.tools@gmail.com> wrote:
> > >
> > > Add -mavx512vpopcntdq for -march=native if AVX512VPOPCNTDQ is available.
> > >
> > >         PR target/95258
> > >         * config/i386/driver-i386.c (host_detect_local_cpu): Detect
> > >         AVX512VPOPCNTDQ.
> >
> > OK.
> >
>
> OK for backports?

OK.

Thanks,
Uros.

> Thanks.
>
> >
> > > ---
> > >  gcc/config/i386/driver-i386.c | 9 ++++++---
> > >  1 file changed, 6 insertions(+), 3 deletions(-)
> > >
> > > diff --git a/gcc/config/i386/driver-i386.c b/gcc/config/i386/driver-i386.c
> > > index 7612ddfb846..3a816400729 100644
> > > --- a/gcc/config/i386/driver-i386.c
> > > +++ b/gcc/config/i386/driver-i386.c
> > > @@ -420,6 +420,7 @@ const char *host_detect_local_cpu (int argc, const char **argv)
> > >    unsigned int has_avx5124fmaps = 0, has_avx5124vnniw = 0;
> > >    unsigned int has_gfni = 0, has_avx512vbmi2 = 0;
> > >    unsigned int has_avx512bitalg = 0;
> > > +  unsigned int has_avx512vpopcntdq = 0;
> > >    unsigned int has_shstk = 0;
> > >    unsigned int has_avx512vnni = 0, has_vaes = 0;
> > >    unsigned int has_vpclmulqdq = 0;
> > > @@ -528,6 +529,7 @@ const char *host_detect_local_cpu (int argc, const char **argv)
> > >        has_vaes = ecx & bit_VAES;
> > >        has_vpclmulqdq = ecx & bit_VPCLMULQDQ;
> > >        has_avx512bitalg = ecx & bit_AVX512BITALG;
> > > +      has_avx512vpopcntdq = ecx & bit_AVX512VPOPCNTDQ;
> > >        has_movdiri = ecx & bit_MOVDIRI;
> > >        has_movdir64b = ecx & bit_MOVDIR64B;
> > >        has_enqcmd = ecx & bit_ENQCMD;
> > > @@ -1189,6 +1191,7 @@ const char *host_detect_local_cpu (int argc, const char **argv)
> > >        const char *avx512vp2intersect = has_avx512vp2intersect ? " -mavx512vp2intersect" : " -mno-avx512vp2intersect";
> > >        const char *tsxldtrk = has_tsxldtrk ? " -mtsxldtrk " : " -mno-tsxldtrk";
> > >        const char *avx512bitalg = has_avx512bitalg ? " -mavx512bitalg" : " -mno-avx512bitalg";
> > > +      const char *avx512vpopcntdq = has_avx512vpopcntdq ? " -mavx512vpopcntdq" : " -mno-avx512vpopcntdq";
> > >        const char *movdiri = has_movdiri ? " -mmovdiri" : " -mno-movdiri";
> > >        const char *movdir64b = has_movdir64b ? " -mmovdir64b" : " -mno-movdir64b";
> > >        const char *enqcmd = has_enqcmd ? " -menqcmd" : " -mno-enqcmd";
> > > @@ -1210,9 +1213,9 @@ const char *host_detect_local_cpu (int argc, const char **argv)
> > >                         avx512ifma, avx512vbmi, avx5124fmaps, avx5124vnniw,
> > >                         clwb, mwaitx, clzero, pku, rdpid, gfni, shstk,
> > >                         avx512vbmi2, avx512vnni, vaes, vpclmulqdq,
> > > -                       avx512bitalg, movdiri, movdir64b, waitpkg, cldemote,
> > > -                       ptwrite, avx512bf16, enqcmd, avx512vp2intersect,
> > > -                       serialize, tsxldtrk, NULL);
> > > +                       avx512bitalg, avx512vpopcntdq, movdiri, movdir64b,
> > > +                       waitpkg, cldemote, ptwrite, avx512bf16, enqcmd,
> > > +                       avx512vp2intersect, serialize, tsxldtrk, NULL);
> > >      }
> > >
> > >  done:
> > > --
> > > 2.26.2
> > >
>
>
>
> --
> H.J.