[PATCH v2 00/23] target/i386: make most SSE helpers generic in the vector size

[Paolo Bonzini]

This is the first half of Paul's series from last April, reorganized
to have no occurrence of YMM_ONLY or SHIFT == 2---meaning it can be
committed without much fuss, even without a plan for the implementation
of AVX decoding.

In most cases this is done by using loops that apply the same code for
all of MMX/SSE/AVX, and in fact this series removes basically all uses
of XMM_ONLY in the code.

In some cases AVX needs special-casing for the two 128-bit lanes and then
this code is simply missing.  The missing helper code is only 10 lines
though, so this _is_ the lion share of the work to adapt the existing
helpers.

The full work, with the AVX parts rebased on top of these, is at branch
i386-avx of https://gitlab.com/bonzini/qemu.  The branch passes the
tests that Paul had posted, while this reduced part passes the reduced
SSE version.

Paolo

v1->v2: get rid of XMM_ONLY
        do not special case PMULHRW (yet)
        remove dead macro for blend
        do not copy table entries on the stack
        remove AVXisms from sse_op_table rework
        extract more code from the AVX patches

Based-on: <20220825164827.392942-1-pbonzini@redhat.com>

Paolo Bonzini (6):
  i386: do not use MOVL to move data between SSE registers
  i386: formatting fixes
  i386: check SSE table flags instead of hardcoding opcodes
  i386: isolate MMX code more
  i386: Add size suffix to vector FP helpers
  i386: do not cast gen_helper_* function pointers

Paul Brook (17):
  i386: Add ZMM_OFFSET macro
  i386: Rework sse_op_table1
  i386: Rework sse_op_table6/7
  i386: Move 3DNOW decoder
  i386: Add CHECK_NO_VEX
  i386: Rewrite vector shift helper
  i386: Rewrite simple integer vector helpers
  i386: Misc integer AVX helper prep
  i386: Destructive vector helpers for AVX
  i386: Floating point arithmetic helper AVX prep
  i386: reimplement AVX comparison helpers
  i386: Dot product AVX helper prep
  i386: Destructive FP helpers for AVX
  i386: Misc AVX helper prep
  i386: Rewrite blendv helpers
  i386: AVX pclmulqdq prep
  i386: AVX+AES helpers prep

 target/i386/ops_sse.h        | 1770 +++++++++++++++++-----------------
 target/i386/ops_sse_header.h |   68 +-
 target/i386/tcg/translate.c  |  831 +++++++++-------
 3 files changed, 1404 insertions(+), 1265 deletions(-)

-- 
2.37.1