[PATCH] D37600: Preserve existing registers when adding pristines to LivePhysRegs

[Krzysztof Parzyszek via Phabricator via llvm-commits]

kparzysz updated this revision to Diff 114364.
kparzysz added a comment.

- Kept the original code for the case of empty set.
- Added the same fix to LiveRegUnits.


Repository:
  rL LLVM

https://reviews.llvm.org/D37600

Files:
  include/llvm/CodeGen/LivePhysRegs.h
  include/llvm/CodeGen/LiveRegUnits.h
  lib/CodeGen/LivePhysRegs.cpp
  lib/CodeGen/LiveRegUnits.cpp
  test/CodeGen/Hexagon/livephysregs-add-pristines.mir

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