[PATCH] D155917: [LoongArch] Add definition for LVZ/LBT instructions

[wanglei via Phabricator via llvm-commits]

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This patch defines the `LVZ` and `LBT` extension instructions, which
provide enough definitions for llvm-mc and llvm-objdump to correctly
handle these instructions.

It also defines the `SCR` (Scratchpad Register) register class, which
are used by the `LBT` extension instructions.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D155917

Files:
  llvm/lib/Target/LoongArch/AsmParser/LoongArchAsmParser.cpp
  llvm/lib/Target/LoongArch/Disassembler/LoongArchDisassembler.cpp
  llvm/lib/Target/LoongArch/LoongArchInstrInfo.td
  llvm/lib/Target/LoongArch/LoongArchLBTInstrFormats.td
  llvm/lib/Target/LoongArch/LoongArchLBTInstrInfo.td
  llvm/lib/Target/LoongArch/LoongArchLVZInstrInfo.td
  llvm/lib/Target/LoongArch/LoongArchRegisterInfo.td
  llvm/test/MC/LoongArch/lbt/arm-alu.s
  llvm/test/MC/LoongArch/lbt/arm-jump.s
  llvm/test/MC/LoongArch/lbt/arm-mov.s
  llvm/test/MC/LoongArch/lbt/arm-shift.s
  llvm/test/MC/LoongArch/lbt/base.s
  llvm/test/MC/LoongArch/lbt/scr.s
  llvm/test/MC/LoongArch/lbt/x86-alu.s
  llvm/test/MC/LoongArch/lbt/x86-jump.s
  llvm/test/MC/LoongArch/lbt/x86-misc.s
  llvm/test/MC/LoongArch/lbt/x86-shift.s
  llvm/test/MC/LoongArch/lvz/lvz-err.s
  llvm/test/MC/LoongArch/lvz/lvz.s

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