[PATCH] D15303: [Greedy regalloc] Replace analyzeSiblingValues with something new [Part2]

[Wei Mi via llvm-commits]

wmi updated this revision to Diff 46012.
wmi added a comment.

Fix some missing remat cases by changing ParentVNI to OrigVNI in scanRemattable -- Instruction at ParentVNI.def may be only a copy and will be regarded as not remattable while OrigVNI.def contains the real expression for remat.

Move DeadRemats into RegAllocBase class for RegAllocBasic. Add DeadRemats in RegAllocPBQP.


Repository:
  rL LLVM

http://reviews.llvm.org/D15303

Files:
  include/llvm/CodeGen/LiveRangeEdit.h
  lib/CodeGen/InlineSpiller.cpp
  lib/CodeGen/LiveRangeEdit.cpp
  lib/CodeGen/RegAllocBase.cpp
  lib/CodeGen/RegAllocBase.h
  lib/CodeGen/RegAllocBasic.cpp
  lib/CodeGen/RegAllocGreedy.cpp
  lib/CodeGen/RegAllocPBQP.cpp
  lib/CodeGen/RegisterCoalescer.cpp
  lib/CodeGen/SplitKit.cpp

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