[all-commits] [llvm/llvm-project] 4dd5d9: [RISCV] Don't call use_nodbg_operands for physical...

[Craig Topper via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4dd5d967975fa8d52b8c60596d892d9dd5615809
      https://github.com/llvm/llvm-project/commit/4dd5d967975fa8d52b8c60596d892d9dd5615809
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2024-01-05 (Fri, 05 Jan 2024)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVOptWInstrs.cpp
    M llvm/test/CodeGen/RISCV/opt-w-instrs.mir

  Log Message:
  -----------
  [RISCV] Don't call use_nodbg_operands for physical registers in RISCVOptWInstrs hasAllNBitUsers. (#77032)

The ADDIW in the new test case was incorrectly removed due to
incorrectly following the x10 register from the return value back to the
argument. This is due to use_nodbg_operands returning every instruction
that uses a physical register regardless of the data flow.