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[00/18] target/i386: decoder changes for 8.2

Message ID 20231014100121.109817-1-pbonzini@redhat.com
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Series target/i386: decoder changes for 8.2 | expand

Message

Paolo Bonzini Oct. 14, 2023, 10:01 a.m. UTC 
This includes:

- implementing SHA and CMPccXADD instruction extensions

- introducing a new mechanism for flags writeback that avoids a
  tricky failure

- converting the more orthogonal parts of the one-byte opcode
  map, as well as the CMOVcc and SETcc instructions.

Tested by booting several 32-bit and 64-bit guests.

Paolo


Paolo Bonzini (18):
  target/i386: group common checks in the decoding phase
  target/i386: validate VEX.W for AVX instructions
  target/i386: implement SHA instructions
  tests/tcg/i386: initialize more registers in test-avx
  tests/tcg/i386: test-avx: add test cases for SHA new instructions
  target/i386: accept full MemOp in gen_ext_tl
  target/i386: introduce flags writeback mechanism
  target/i386: implement CMPccXADD
  target/i386: do not clobber A0 in POP translation
  target/i386: reintroduce debugging mechanism
  target/i386: move 00-5F opcodes to new decoder
  target/i386: adjust decoding of J operand
  target/i386: split eflags computation out of gen_compute_eflags
  target/i386: move 60-BF opcodes to new decoder
  target/i386: move operand load and writeback out of gen_cmovcc1
  target/i386: move remaining conditional operations to new decoder
  target/i386: remove now converted opcodes from old decoder
  target/i386: remove gen_op

 target/i386/cpu.c                    |    4 +-
 target/i386/ops_sse.h                |  128 ++++
 target/i386/tcg/decode-new.c.inc     |  605 ++++++++++++++--
 target/i386/tcg/decode-new.h         |   41 +-
 target/i386/tcg/emit.c.inc           |  726 ++++++++++++++++++-
 target/i386/tcg/ops_sse_header.h.inc |   14 +
 target/i386/tcg/translate.c          | 1001 +++-----------------------
 tests/tcg/i386/Makefile.target       |    2 +-
 tests/tcg/i386/test-avx.c            |    8 +
 tests/tcg/i386/test-avx.py           |    3 +-
 tests/tcg/i386/test-flags.c          |   37 +
 11 files changed, 1593 insertions(+), 976 deletions(-)
 create mode 100644 tests/tcg/i386/test-flags.c