[PATCH] D23394: AMDGPU: Remove custom getSubReg

[Matt Arsenault via llvm-commits]

arsenm created this revision.
arsenm added a reviewer: tstellarAMD.
arsenm added a subscriber: llvm-commits.
Herald added subscribers: kzhuravl, arsenm.

This was kind of confusing, the subregister class shouldn't really be necessary.

https://reviews.llvm.org/D23394

Files:
  lib/Target/AMDGPU/SIRegisterInfo.cpp
  lib/Target/AMDGPU/SIRegisterInfo.h

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