[PATCH] D93394: CodeGen: Move function to get subregister indexes to cover a LaneMask

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added reviewers: qcolombet, foad.
Herald added subscribers: arphaman, hiraditya.
arsenm requested review of this revision.
Herald added a subscriber: wdng.
Herald added a project: LLVM.

Return the best covering index, and additional needed to complete the
mask. This logically belongs in TargetRegisterInfo, although I ended
up not needing it for why I originally split this out.


https://reviews.llvm.org/D93394

Files:
  llvm/include/llvm/CodeGen/TargetRegisterInfo.h
  llvm/lib/CodeGen/SplitKit.cpp
  llvm/lib/CodeGen/TargetRegisterInfo.cpp

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