[PATCH] D88924: [X86] Move findDeadCallerSavedReg() into X86RegisterInfo

[Scott Constable via Phabricator via llvm-commits]

sconstab created this revision.
sconstab added a reviewer: craig.topper.
Herald added subscribers: pengfei, hiraditya.
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sconstab requested review of this revision.

The `findDeadCallerSavedReg()` function has utility outside of `X86FrameLowering.cpp`


https://reviews.llvm.org/D88924

Files:
  llvm/lib/Target/X86/X86FrameLowering.cpp
  llvm/lib/Target/X86/X86RegisterInfo.cpp
  llvm/lib/Target/X86/X86RegisterInfo.h

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