[all-commits] [llvm/llvm-project] b34e3f: [RISCV] Use TAIL_UNDISTURBED_MASK_UNDISTURBED for ...

[Craig Topper via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b34e3f40e71597bc3b686214a1ff5556737e7827
      https://github.com/llvm/llvm-project/commit/b34e3f40e71597bc3b686214a1ff5556737e7827
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2022-06-16 (Thu, 16 Jun 2022)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td

  Log Message:
  -----------
  [RISCV] Use TAIL_UNDISTURBED_MASK_UNDISTURBED for riscv_slidedown_vl unless the merge op is undef.

If the merge operand isn't undef we need to be using tail undisturbed.

Turns out all of our uses of riscv_slidedown_vl use undef so this
doesn't affect any tests.