在 2021/10/23 22:47, Philippe Mathieu-Daudé 写道:
> Hi,
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> This series converts 2000+ lines of switch() code to decodetree
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> description, so this hard-to-review/modify switch is auto generated
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> by the decodetree script. This is a big win for maintenance (and
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> indeed the convertion revealed 2 bugs).
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> Massive convertions are - beside being often boring - bug-prone.
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> In this series we re-start running the MSA tests (the tests are
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> run automagically in the 'build-user-static' job on gitlab CI).
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> Although boring, the conversion is very clean, so I hope it will
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> be easy enough to review. The TRANS*() macros are heavily used.
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> When possible, constant fields are hold with tcg_constant().
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> Note, various opcodes can be optimized using TCG host vectors.
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> We won't address that in this series, as it makes the resulting
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> review harder. We will post that in a following series. Here we
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> simply dummy-convert.
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> The resulting msa.decode file is quite pleasant to look at, and
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> the diff-stat is encouraging: number of LoC halved.
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> Regards,
Thanks that's really helpful!
For the whole series:
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Double checked decode tree opcode with manual.
Thanks.
- Jiaxun
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> Phil.
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> git: https://gitlab.com/philmd/qemu.git tree/mips-msa-decodetree
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> Based-on: <20211023164329.328137-1-f4bug@amsat.org>
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> Philippe Mathieu-Daudé (33):
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> tests/tcg: Fix some targets default cross compiler path
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> target/mips: Fix MSA MADDV.B opcode
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> target/mips: Fix MSA MSUBV.B opcode
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> tests/tcg/mips: Run MSA opcodes tests on user-mode emulation
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> target/mips: Have check_msa_access() return a boolean
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> target/mips: Use enum definitions from CPUMIPSMSADataFormat enum
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> target/mips: Rename sa16 -> sa, bz_df -> bz -> bz_v
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> target/mips: Convert MSA LDI opcode to decodetree
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> target/mips: Introduce generic TRANS_CHECK() for decodetree helpers
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> target/mips: Extract df_extract() helper
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> target/mips: Convert MSA I5 instruction format to decodetree
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> target/mips: Convert MSA BIT instruction format to decodetree
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> target/mips: Convert MSA SHF opcode to decodetree
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> target/mips: Convert MSA I8 instruction format to decodetree
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> target/mips: Convert MSA load/store instruction format to decodetree
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> target/mips: Convert MSA 2RF instruction format to decodetree
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> target/mips: Convert MSA FILL opcode to decodetree
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> target/mips: Convert MSA 2R instruction format to decodetree
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> target/mips: Convert MSA VEC instruction format to decodetree
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> target/mips: Convert MSA 3RF instruction format to decodetree
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> (DF_HALF)
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> target/mips: Convert MSA 3RF instruction format to decodetree
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> (DF_WORD)
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> target/mips: Convert MSA 3R instruction format to decodetree (part
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> 1/4)
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> target/mips: Convert MSA 3R instruction format to decodetree (part
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> 2/4)
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> target/mips: Convert MSA 3R instruction format to decodetree (part
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> 3/4)
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> target/mips: Convert MSA 3R instruction format to decodetree (part
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> 4/4)
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> target/mips: Convert MSA ELM instruction format to decodetree
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> target/mips: Convert MSA COPY_U opcode to decodetree
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> target/mips: Convert MSA COPY_S and INSERT opcodes to decodetree
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> target/mips: Convert MSA MOVE.V opcode to decodetree
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> target/mips: Convert CFCMSA and CTCMSA opcodes to decodetree
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> target/mips: Remove generic MSA opcode
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> target/mips: Remove one MSA unnecessary decodetree overlap group
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> target/mips: Adjust style in msa_translate_init()
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> tests/tcg/mips/ase-msa.mak | 30 +
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> target/mips/tcg/translate.h | 9 +
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> target/mips/tcg/msa.decode | 231 ++-
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> target/mips/tcg/msa_helper.c | 64 +-
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> target/mips/tcg/msa_translate.c | 2781 +++++++---------------------
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> MAINTAINERS | 1 +
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> tests/tcg/configure.sh | 14 +-
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> tests/tcg/mips/Makefile.target | 5 +
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> tests/tcg/mips64/Makefile.target | 9 +
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> tests/tcg/mips64el/Makefile.target | 12 +
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> tests/tcg/mipsel/Makefile.target | 9 +
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> 11 files changed, 1052 insertions(+), 2113 deletions(-)
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> create mode 100644 tests/tcg/mips/ase-msa.mak
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> create mode 100644 tests/tcg/mips64/Makefile.target
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> create mode 100644 tests/tcg/mips64el/Makefile.target
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> create mode 100644 tests/tcg/mipsel/Makefile.target
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