[PATCH] D111150: [AMDGPU] Remove dead frame indices after sgpr spill.

[Mahesha S via Phabricator via llvm-commits]

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All those frame indices which are dead after sgpr spill should be removed from
the function frame. Othewise, there is a side effect such as re-mapping of free
frame index ids by the later pass(es) like "stack slot coloring" which in turn
could mess-up with the book keeping of "frame index to VGPR lane".


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D111150

Files:
  llvm/lib/Target/AMDGPU/SILowerSGPRSpills.cpp
  llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.cpp
  llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp
  llvm/test/CodeGen/AMDGPU/sgpr-spill-incorrect-fi-bookkeeping-bug.ll

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