[all-commits] [llvm/llvm-project] e8f6b0: AMDGPU/GlobalISel: Fix splitting 64-bit extensions

[Matt Arsenault via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: e8f6b0e583cbf97a08c26b2219faaa5e433a67ab
      https://github.com/llvm/llvm-project/commit/e8f6b0e583cbf97a08c26b2219faaa5e433a67ab
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2020-05-20 (Wed, 20 May 2020)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp
    M llvm/test/CodeGen/AMDGPU/GlobalISel/regbankselect-anyext.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/regbankselect-zext.mir

  Log Message:
  -----------
  AMDGPU/GlobalISel: Fix splitting 64-bit extensions

This was replicating the low bits into the high bits for G_ZEXT,
rather than using 0.