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[PATCH V4 0/3] Intel(R) AVX-512 register support


Pedro,

we've addressed the comments you made in V3. I've made changes to ensure 
that test result is "unsupported" on machines that do not support AVX-512.
The test result is "untested" if compile step fails if gcc does not
recognize the AVX-512 machine option. I've also redesigned the test quite a 
bit, so I assumed that you may want to have another look before I push.

Thanks and Regards,
Michael


This patch series adds support for the Intel(R) Advanced Vector Extensions 512
(Intel(R) AVX-512) registers. Native and remote debugging are covered by this
patch series.

Intel(R) AVX-512 is an extension to AVX to support 512-bit wide SIMD registers
in 64-bit mode (XMM0-XMM31, YMM0-YMM31, ZMM0-ZMM31). The number of available
registers in 32-bit mode is still 8 (XMM0-7, YMM0-7, ZMM0-7). The lower
256-bits of the ZMM registers are aliased to the respective 256-bit YMM
registers. The lower 128-bits are aliased to the respective 128-bit XMM
registers.

There are also 8 new, dedicated mask registers (K0-K7) in both 32-bit mode
and 64-bit mode.

For more information please see
Intel(R) Developer Zone: Intel(R) AVX
http://software.intel.com/en-us/intel-isa-extensions#pid-16007-1495

Intel(R) Architecture Instruction Set Extensions Programming Reference:
http://software.intel.com/en-us/file/319433-017pdf

Changes between V3 and V4:
        * Addressed comments by Pedro:
        All: Fixed year in copyright notice .
        i386-linux-tdep.h: Added parens to I386_LINUX_ORIG_EAX_REGNUM define.
        i386-tdep.c: Removed spurious new line.
        Several places: Compare return value of memcmp to 0.
        i386-avx512.exp: Chanegs to ensure test case returns "unsupported" on 
        machines that don't have AVX-512. Redesigned test case.
        i386-avx512.c: Changes following redesign of test case.

Changes between V2 and V3:
        * Following feeback by Mark Kettenis, the follwing changes were made
        in i386-tdep.c:
        Changed a reference to "amd64" to "in 64-bit mode" in the comment
        explaining the need for a constant. Also, refactored is_AVX512,
        is_AVX, is_SSE in i386_register_reggroup_p to avx512_p, avx_p, sse_p.

Changes between V1 and V2:
        * Following feedback by Pedro Alves, i386-avx512.exp now using
        gdb_test_multiple when checking if AVX512 is supported by the
        CPU. If CPU does not support AVX512, return unsupported.
        Simplified test as timeout is handled by framework. Added newline
        at the end of file.

Note:
        * Documentation patch V1 already approved by Eli.
        * AVX512 register patch for GDB V3 pre-approved by Mark.
        * Add AVX512 register support to gdbserver V3 approved by Pedro.

Michael Sturm (3):
  Add AVX512 registers support to GDB.
  Add AVX512 register support to gdbserver.
  Add AVX512 feature description to GDB manual

 gdb/NEWS                                   |   5 +
 gdb/amd64-linux-nat.c                      |  19 +-
 gdb/amd64-linux-tdep.c                     |  23 +-
 gdb/amd64-linux-tdep.h                     |   5 +-
 gdb/amd64-tdep.c                           |  80 +++++
 gdb/amd64-tdep.h                           |  12 +-
 gdb/common/i386-xstate.h                   |  20 +-
 gdb/doc/gdb.texinfo                        |  34 +++
 gdb/features/Makefile                      |  22 ++
 gdb/features/i386/32bit-avx512.xml         |  30 ++
 gdb/features/i386/64bit-avx512.xml         | 102 +++++++
 gdb/features/i386/amd64-avx512-linux.c     | 321 ++++++++++++++++++++
 gdb/features/i386/amd64-avx512-linux.xml   |  20 ++
 gdb/features/i386/amd64-avx512.c           | 316 ++++++++++++++++++++
 gdb/features/i386/amd64-avx512.xml         |  18 ++
 gdb/features/i386/i386-avx512-linux.c      | 208 +++++++++++++
 gdb/features/i386/i386-avx512-linux.xml    |  20 ++
 gdb/features/i386/i386-avx512.c            | 203 +++++++++++++
 gdb/features/i386/i386-avx512.xml          |  18 ++
 gdb/features/i386/x32-avx512-linux.c       | 321 ++++++++++++++++++++
 gdb/features/i386/x32-avx512-linux.xml     |  20 ++
 gdb/features/i386/x32-avx512.c             | 316 ++++++++++++++++++++
 gdb/features/i386/x32-avx512.xml           |  18 ++
 gdb/gdbserver/Makefile.in                  |  19 +-
 gdb/gdbserver/configure.srv                |  20 +-
 gdb/gdbserver/i387-fp.c                    | 182 ++++++++++-
 gdb/gdbserver/linux-x86-low.c              |  35 ++-
 gdb/i386-linux-nat.c                       |   5 +-
 gdb/i386-linux-tdep.c                      |  16 +-
 gdb/i386-linux-tdep.h                      |   7 +-
 gdb/i386-tdep.c                            | 465 +++++++++++++++++++++++++++--
 gdb/i386-tdep.h                            |  64 +++-
 gdb/i387-tdep.c                            | 384 +++++++++++++++++++++++-
 gdb/i387-tdep.h                            |  21 ++
 gdb/regformats/i386/amd64-avx512-linux.dat | 156 ++++++++++
 gdb/regformats/i386/amd64-avx512.dat       | 155 ++++++++++
 gdb/regformats/i386/i386-avx512-linux.dat  |  76 +++++
 gdb/regformats/i386/i386-avx512.dat        |  75 +++++
 gdb/regformats/i386/x32-avx512-linux.dat   | 156 ++++++++++
 gdb/regformats/i386/x32-avx512.dat         | 155 ++++++++++
 gdb/testsuite/gdb.arch/Makefile.in         |   2 +-
 gdb/testsuite/gdb.arch/i386-avx512.c       | 249 +++++++++++++++
 gdb/testsuite/gdb.arch/i386-avx512.exp     | 175 +++++++++++
 43 files changed, 4507 insertions(+), 61 deletions(-)
 create mode 100644 gdb/features/i386/32bit-avx512.xml
 create mode 100644 gdb/features/i386/64bit-avx512.xml
 create mode 100644 gdb/features/i386/amd64-avx512-linux.c
 create mode 100644 gdb/features/i386/amd64-avx512-linux.xml
 create mode 100644 gdb/features/i386/amd64-avx512.c
 create mode 100644 gdb/features/i386/amd64-avx512.xml
 create mode 100644 gdb/features/i386/i386-avx512-linux.c
 create mode 100644 gdb/features/i386/i386-avx512-linux.xml
 create mode 100644 gdb/features/i386/i386-avx512.c
 create mode 100644 gdb/features/i386/i386-avx512.xml
 create mode 100644 gdb/features/i386/x32-avx512-linux.c
 create mode 100644 gdb/features/i386/x32-avx512-linux.xml
 create mode 100644 gdb/features/i386/x32-avx512.c
 create mode 100644 gdb/features/i386/x32-avx512.xml
 create mode 100644 gdb/regformats/i386/amd64-avx512-linux.dat
 create mode 100644 gdb/regformats/i386/amd64-avx512.dat
 create mode 100644 gdb/regformats/i386/i386-avx512-linux.dat
 create mode 100644 gdb/regformats/i386/i386-avx512.dat
 create mode 100644 gdb/regformats/i386/x32-avx512-linux.dat
 create mode 100644 gdb/regformats/i386/x32-avx512.dat
 create mode 100644 gdb/testsuite/gdb.arch/i386-avx512.c
 create mode 100644 gdb/testsuite/gdb.arch/i386-avx512.exp

-- 
1.8.4.2


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