[all-commits] [llvm/llvm-project] a79332: [RISCV] Fix reporting of incorrect commutable oper...

[Fraser Cormack via All-commits]

  Branch: refs/heads/release/13.x
  Home:   https://github.com/llvm/llvm-project
  Commit: a7933290f72a08dc060d38fa52772a9cc33ed9ba
      https://github.com/llvm/llvm-project/commit/a7933290f72a08dc060d38fa52772a9cc33ed9ba
  Author: Fraser Cormack <fraser at codeplay.com>
  Date:   2021-08-24 (Tue, 24 Aug 2021)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
    A llvm/test/CodeGen/RISCV/rvv/commuted-op-indices-regression.mir

  Log Message:
  -----------
  [RISCV] Fix reporting of incorrect commutable operand indices

This patch fixes an issue where RISCV's `findCommutedOpIndices` would
incorrectly return the pseudo `CommuteAnyOperandIndex` as a commutable
operand index, rather than fixing a specific index.

Reviewed By: rogfer01

Differential Revision: https://reviews.llvm.org/D108206

(cherry picked from commit 5b06cbac11e53ce55f483c1852a108012507a6bb)