[PATCH] D76584: Split LiveRangeCalc in LiveRangeCalc/LiveIntervalCalc. NFC

[Marcello Maggioni via Phabricator via llvm-commits]

kariddi created this revision.
Herald added subscribers: llvm-commits, hiraditya, mgorny, qcolombet, MatzeB.
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kariddi added reviewers: qcolombet, MatzeB, arsenm, rtereshin.
Herald added a subscriber: wdng.

Refactor LiveRangeCalc such that it is now split into two classes

The objective is to split all the "register specific" logic away
from LiveRangeCalc.
The two new classes created are:

- LiveRangeCalc - is meant as a generic class to compute and modify live ranges in a generic way. This class should deal only with SlotIndices and VNInfo objects.

- LiveIntervalCals - is meant to be equivalent to the old LiveRangeCalc. It computes the liveness virtual registers tracked by a LiveInterval object.

With this refactoring LiveRangeCalc can be used to implement tracking of
liveness of LiveRanges that represent other things than just registers.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D76584

Files:
  llvm/include/llvm/CodeGen/LiveIntervalCalc.h
  llvm/include/llvm/CodeGen/LiveIntervals.h
  llvm/include/llvm/CodeGen/LiveRangeCalc.h
  llvm/lib/CodeGen/CMakeLists.txt
  llvm/lib/CodeGen/InlineSpiller.cpp
  llvm/lib/CodeGen/LiveIntervalCalc.cpp
  llvm/lib/CodeGen/LiveIntervals.cpp
  llvm/lib/CodeGen/LiveRangeCalc.cpp
  llvm/lib/CodeGen/MachineVerifier.cpp
  llvm/lib/CodeGen/SplitKit.cpp
  llvm/lib/CodeGen/SplitKit.h

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