[all-commits] [llvm/llvm-project] 21cced: AMDGPU/GlobalISel: Tolerate negated control flow i...

[Matt Arsenault via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 21ccedc24fc49b43e84095b4773f8aa86c366dac
      https://github.com/llvm/llvm-project/commit/21ccedc24fc49b43e84095b4773f8aa86c366dac
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2020-08-26 (Wed, 26 Aug 2020)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-amdgcn.if-invalid.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-brcond.mir

  Log Message:
  -----------
  AMDGPU/GlobalISel: Tolerate negated control flow intrinsic outputs

If the condition output is negated, swap the branch targets. This is
similar to what SelectionDAG does for when SelectionDAGBuilder
decides to invert the condition and swap the branches.

This is leaving behind a dead constant def for some reason.