[PATCH] D80147: AMDGPU/GlobalISel: Fix splitting 64-bit extensions

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added reviewers: nhaehnle, kerbowa, foad.
Herald added subscribers: hiraditya, t-tye, tpr, dstuttard, rovka, yaxunl, wdng, jvesely, kzhuravl.
Herald added a project: LLVM.

This was replicating the low bits into the high bits, rather than
applying the appropriate extension type.


https://reviews.llvm.org/D80147

Files:
  llvm/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp
  llvm/test/CodeGen/AMDGPU/GlobalISel/regbankselect-anyext.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/regbankselect-sext.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/regbankselect-zext.mir

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