[all-commits] [llvm/llvm-project] e3e2fd: [RISCV] Add PseudoClearGPR to the special cases in...

[Craig Topper via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e3e2fd630f5969a6ee845a57e3be380331405e2e
      https://github.com/llvm/llvm-project/commit/e3e2fd630f5969a6ee845a57e3be380331405e2e
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2026-06-12 (Fri, 12 Jun 2026)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
    M llvm/lib/Target/RISCV/RISCVInstrInfo.td

  Log Message:
  -----------
  [RISCV] Add PseudoClearGPR to the special cases in RISCVInstrInfo::getInstSizeInBytes. (#203637)

This instruction is expanded to an ADDI with immediate of 0 and should
then be compressed to c.li with Zca. The compression code doesn't know
this due to the Pseudo so manually give a size of 2 for Zca.



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