[GCC-11] [PATCH 0/5] Finish <x86gprintrin.h> and general-regs-only

Uros Bizjak ubizjak@gmail.com
Wed Aug 25 07:34:43 GMT 2021


On Tue, Aug 24, 2021 at 4:57 PM H.J. Lu <hjl.tools@gmail.com> wrote:
>
> On Sun, Aug 15, 2021 at 11:11 PM Richard Biener
> <richard.guenther@gmail.com> wrote:
> >
> > On Fri, Aug 13, 2021 at 3:51 PM H.J. Lu <hjl.tools@gmail.com> wrote:
> > >
> > > <x86gprintrin.h> and target("general-regs-only") function attribute
> > > were added to GCC 11.  But their implementations are incomplete.  I'd
> > > like to backport the following patches to GCC 11 branch to finish them.
> >
> > Fine with me if x86 maintainers do not disagree (also see one comment I have
> > on the -mwait adding patch).
>
> Hi Uros, Honza,
>
> Do you have any comments?  The updated -mwait patch with LTO_minor_version
> bump is at:
>
> https://gcc.gnu.org/pipermail/gcc-patches/2021-August/577471.html

I don't have any comments, but IIRC, approved changes can be
backported from mainline to release branches without additional
approval.

Uros.

> Thanks.
>
> H.J.
> > > H.J. Lu (5):
> > >   x86: Add -mmwait for -mgeneral-regs-only
> > >   x86: Use crc32 target option for CRC32 intrinsics
> > >   x86: Remove OPTION_MASK_ISA_SSE4_2 from CRC32 _builtin functions
> > >   x86: Enable the GPR only instructions for -mgeneral-regs-only
> > >   <x86gprintrin.h>: Add pragma GCC target("general-regs-only")
> > >
> > >  gcc/common/config/i386/i386-common.c       |  45 ++-
> > >  gcc/config.gcc                             |   6 +-
> > >  gcc/config/i386/i386-builtin.def           |   8 +-
> > >  gcc/config/i386/i386-builtins.c            |   4 +-
> > >  gcc/config/i386/i386-c.c                   |   2 +
> > >  gcc/config/i386/i386-options.c             |  12 +
> > >  gcc/config/i386/i386.c                     |   6 +-
> > >  gcc/config/i386/i386.h                     |   2 +
> > >  gcc/config/i386/i386.md                    |   4 +-
> > >  gcc/config/i386/i386.opt                   |   4 +
> > >  gcc/config/i386/ia32intrin.h               |  42 ++-
> > >  gcc/config/i386/mwaitintrin.h              |  52 +++
> > >  gcc/config/i386/pmmintrin.h                |  13 +-
> > >  gcc/config/i386/serializeintrin.h          |   7 +-
> > >  gcc/config/i386/sse.md                     |   4 +-
> > >  gcc/config/i386/x86gprintrin.h             |  13 +
> > >  gcc/doc/extend.texi                        |   5 +
> > >  gcc/doc/invoke.texi                        |   8 +-
> > >  gcc/testsuite/gcc.target/i386/crc32-6.c    |  13 +
> > >  gcc/testsuite/gcc.target/i386/monitor-2.c  |  27 ++
> > >  gcc/testsuite/gcc.target/i386/pr101492-1.c |  10 +
> > >  gcc/testsuite/gcc.target/i386/pr101492-2.c |  10 +
> > >  gcc/testsuite/gcc.target/i386/pr101492-3.c |  10 +
> > >  gcc/testsuite/gcc.target/i386/pr101492-4.c |  12 +
> > >  gcc/testsuite/gcc.target/i386/pr99744-3.c  |  13 +
> > >  gcc/testsuite/gcc.target/i386/pr99744-4.c  | 357 +++++++++++++++++++++
> > >  gcc/testsuite/gcc.target/i386/pr99744-5.c  |  25 ++
> > >  gcc/testsuite/gcc.target/i386/pr99744-6.c  |  23 ++
> > >  gcc/testsuite/gcc.target/i386/pr99744-7.c  |  12 +
> > >  gcc/testsuite/gcc.target/i386/pr99744-8.c  |  13 +
> > >  30 files changed, 717 insertions(+), 45 deletions(-)
> > >  create mode 100644 gcc/config/i386/mwaitintrin.h
> > >  create mode 100644 gcc/testsuite/gcc.target/i386/crc32-6.c
> > >  create mode 100644 gcc/testsuite/gcc.target/i386/monitor-2.c
> > >  create mode 100644 gcc/testsuite/gcc.target/i386/pr101492-1.c
> > >  create mode 100644 gcc/testsuite/gcc.target/i386/pr101492-2.c
> > >  create mode 100644 gcc/testsuite/gcc.target/i386/pr101492-3.c
> > >  create mode 100644 gcc/testsuite/gcc.target/i386/pr101492-4.c
> > >  create mode 100644 gcc/testsuite/gcc.target/i386/pr99744-3.c
> > >  create mode 100644 gcc/testsuite/gcc.target/i386/pr99744-4.c
> > >  create mode 100644 gcc/testsuite/gcc.target/i386/pr99744-5.c
> > >  create mode 100644 gcc/testsuite/gcc.target/i386/pr99744-6.c
> > >  create mode 100644 gcc/testsuite/gcc.target/i386/pr99744-7.c
> > >  create mode 100644 gcc/testsuite/gcc.target/i386/pr99744-8.c
> > >
> > > --
> > > 2.31.1
> > >
>
>
>
> --
> H.J.


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