[PATCH 00/38] target/riscv: support packed extension v0.9.2

[LIU Zhiwei]

This patchset implements the packed extension for RISC-V on QEMU.

This patchset have passed all my direct Linux user mode cases(RV64) and
bare metal cases(RV32) on X86-64 Ubuntu host machine. I will later push
these test cases to my repo(https://github.com/romanheros/qemu.git
branch:packed-upstream-v1).

I have ported packed extension on RISU, but I didn't find a simulator or
hardware to compare with. If anyone have one, please let me know.

Features:
  * support specification packed extension 
v0.9.2(https://github.com/riscv/riscv-p-spec/)
  * support basic packed extension.
  * support Zp64.

LIU Zhiwei (38):
  target/riscv: implementation-defined constant parameters
  target/riscv: Hoist vector functions
  target/riscv: Fixup saturate subtract function
  target/riscv: 16-bit Addition & Subtraction Instructions
  target/riscv: 8-bit Addition & Subtraction Instruction
  target/riscv: SIMD 16-bit Shift Instructions
  target/riscv: SIMD 8-bit Shift Instructions
  target/riscv: SIMD 16-bit Compare Instructions
  target/riscv: SIMD 8-bit Compare Instructions
  target/riscv: SIMD 16-bit Multiply Instructions
  target/riscv: SIMD 8-bit Multiply Instructions
  target/riscv: SIMD 16-bit Miscellaneous Instructions
  target/riscv: SIMD 8-bit Miscellaneous Instructions
  target/riscv: 8-bit Unpacking Instructions
  target/riscv: 16-bit Packing Instructions
  target/riscv: Signed MSW 32x32 Multiply and Add Instructions
  target/riscv: Signed MSW 32x16 Multiply and Add Instructions
  target/riscv: Signed 16-bit Multiply 32-bit Add/Subtract Instructions
  target/riscv: Signed 16-bit Multiply 64-bit Add/Subtract Instructions
  target/riscv: Partial-SIMD Miscellaneous Instructions
  target/riscv: 8-bit Multiply with 32-bit Add Instructions
  target/riscv: 64-bit Add/Subtract Instructions
  target/riscv: 32-bit Multiply 64-bit Add/Subtract Instructions
  target/riscv: Signed 16-bit Multiply with 64-bit Add/Subtract
    Instructions
  target/riscv: Non-SIMD Q15 saturation ALU Instructions
  target/riscv: Non-SIMD Q31 saturation ALU Instructions
  target/riscv: 32-bit Computation Instructions
  target/riscv: Non-SIMD Miscellaneous Instructions
  target/riscv: RV64 Only SIMD 32-bit Add/Subtract Instructions
  target/riscv: RV64 Only SIMD 32-bit Shift Instructions
  target/riscv: RV64 Only SIMD 32-bit Miscellaneous Instructions
  target/riscv: RV64 Only SIMD Q15 saturating Multiply Instructions
  target/riscv: RV64 Only 32-bit Multiply Instructions
  target/riscv: RV64 Only 32-bit Multiply & Add Instructions
  target/riscv: RV64 Only 32-bit Parallel Multiply & Add Instructions
  target/riscv: RV64 Only Non-SIMD 32-bit Shift Instructions
  target/riscv: RV64 Only 32-bit Packing Instructions
  target/riscv: configure and turn on packed extension from command line

 target/riscv/cpu.c                      |   32 +
 target/riscv/cpu.h                      |    6 +
 target/riscv/helper.h                   |  332 ++
 target/riscv/insn32-64.decode           |   93 +-
 target/riscv/insn32.decode              |  285 ++
 target/riscv/insn_trans/trans_rvp.c.inc | 1224 +++++++
 target/riscv/internals.h                |   50 +
 target/riscv/meson.build                |    1 +
 target/riscv/packed_helper.c            | 3862 +++++++++++++++++++++++
 target/riscv/translate.c                |    3 +
 target/riscv/vector_helper.c            |   90 +-
 11 files changed, 5912 insertions(+), 66 deletions(-)
 create mode 100644 target/riscv/insn_trans/trans_rvp.c.inc
 create mode 100644 target/riscv/packed_helper.c

-- 
2.17.1