[PATCH] D112919: [CSKY] Add CSKY 16-bit instruction format and encoding

[Zixuan Wu via Phabricator via llvm-commits]

zixuan-wu created this revision.
zixuan-wu added reviewers: rengolin, MaskRay, myhsu.
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CSKY is a ARCH which supports mixture of 16-bit and 32-bit instructions natively, and there is not an indivual predictor or feature to enable/disable 16-bit instruction. So I think it's better to add 16-bit instruction early, and naturally to use 16-bit and 32-bit instructions.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D112919

Files:
  llvm/lib/Target/CSKY/AsmParser/CSKYAsmParser.cpp
  llvm/lib/Target/CSKY/CSKY.td
  llvm/lib/Target/CSKY/CSKYInstrFormats16Instr.td
  llvm/lib/Target/CSKY/CSKYInstrInfo.td
  llvm/lib/Target/CSKY/CSKYInstrInfo16Instr.td
  llvm/lib/Target/CSKY/CSKYRegisterInfo.td
  llvm/lib/Target/CSKY/CSKYSubtarget.cpp
  llvm/lib/Target/CSKY/CSKYSubtarget.h
  llvm/lib/Target/CSKY/CSKYTargetMachine.h
  llvm/test/MC/CSKY/basic-16bit.s

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