[PATCH] D14750: Support for function-live-in virtual registers

[Dan Gohman via llvm-commits]

sunfish updated this revision to Diff 40829.
sunfish added a comment.

Make getVRegDefMBB return NULL if a register is live-in and has other defs besides, meaning it is not in SSA form. This is more consistent with the existing getVRegDef.


Repository:
  rL LLVM

http://reviews.llvm.org/D14750

Files:
  include/llvm/CodeGen/MachineRegisterInfo.h
  lib/CodeGen/LiveRangeCalc.cpp
  lib/CodeGen/LiveVariables.cpp
  lib/CodeGen/MachineCSE.cpp
  lib/CodeGen/MachineLICM.cpp
  lib/CodeGen/MachineRegisterInfo.cpp
  lib/CodeGen/MachineVerifier.cpp
  lib/CodeGen/PeepholeOptimizer.cpp
  lib/CodeGen/RegisterCoalescer.cpp

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