[all-commits] [llvm/llvm-project] e56e90: AMDGPU: Fix liveness errors when copying AGPR tuples

[Matt Arsenault via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: e56e9022bc54c575ad8ecc3934e9cf84b8542e62
      https://github.com/llvm/llvm-project/commit/e56e9022bc54c575ad8ecc3934e9cf84b8542e62
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2020-07-30 (Thu, 30 Jul 2020)

  Changed paths:
    M llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
    M llvm/test/CodeGen/AMDGPU/accvgpr-copy.mir

  Log Message:
  -----------
  AMDGPU: Fix liveness errors when copying AGPR tuples

Avoid recursively calling copyPhysReg for AGPR handling. This was
dropping the necessary super register implicit defs to avoid liveness
verifier errors.