[all-commits] [llvm/llvm-project] ea4597: Reapply "AMDGPU/GlobalISel: Fully handle 0 dmask c...

[Matt Arsenault via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: ea4597eef10c231790b62779351183876497a3f4
      https://github.com/llvm/llvm-project/commit/ea4597eef10c231790b62779351183876497a3f4
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2020-03-18 (Wed, 18 Mar 2020)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-llvm.amdgcn.image.dim.a16.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-llvm.amdgcn.image.load.2d.d16.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-llvm.amdgcn.image.load.2d.ll

  Log Message:
  -----------
  Reapply "AMDGPU/GlobalISel: Fully handle 0 dmask case during legalize"

This reverts commit 9bca8fc4cf5d290b576618d14a105fafe80cf5ae.

Rearrange handling to avoid changing the instruction in the case where
it's going to be erased and replaced with undef.