[all-commits] [llvm/llvm-project] 6b55e9: [RISCV] Add MC support of RISCV zcmp Extension

[VincentWu via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6b55e9117ebbd32d66b6f6ad12326a6b2acaef58
      https://github.com/llvm/llvm-project/commit/6b55e9117ebbd32d66b6f6ad12326a6b2acaef58
  Author: WuXinlong <821408745 at qq.com>
  Date:   2023-05-08 (Mon, 08 May 2023)

  Changed paths:
    M clang/test/Preprocessor/riscv-target-features.c
    M llvm/docs/RISCVUsage.rst
    M llvm/lib/Support/RISCVISAInfo.cpp
    M llvm/lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp
    M llvm/lib/Target/RISCV/Disassembler/RISCVDisassembler.cpp
    M llvm/lib/Target/RISCV/MCTargetDesc/RISCVBaseInfo.cpp
    M llvm/lib/Target/RISCV/MCTargetDesc/RISCVBaseInfo.h
    M llvm/lib/Target/RISCV/MCTargetDesc/RISCVInstPrinter.cpp
    M llvm/lib/Target/RISCV/MCTargetDesc/RISCVInstPrinter.h
    M llvm/lib/Target/RISCV/MCTargetDesc/RISCVMCCodeEmitter.cpp
    M llvm/lib/Target/RISCV/RISCVFeatures.td
    M llvm/lib/Target/RISCV/RISCVInstrInfoZc.td
    M llvm/lib/Target/RISCV/RISCVRegisterInfo.td
    M llvm/test/MC/RISCV/attribute-arch.s
    A llvm/test/MC/RISCV/rv32zcmp-invalid.s
    A llvm/test/MC/RISCV/rv32zcmp-valid.s
    A llvm/test/MC/RISCV/rv64zcmp-invalid.s
    A llvm/test/MC/RISCV/rv64zcmp-valid.s

  Log Message:
  -----------
  [RISCV] Add MC support of RISCV zcmp Extension

This patch add the instructions of zcmp extension.

Instructions in zcmp extension try to optimise `mv` inst and the prologue & epilogue in functions

co-author: @Scott Egerton, @ZirconLiu, @Lukacma, @Heda Chen, @luxufan, @heyiliang, @liaochunyu

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D132819