[PATCH] D124194: [AMDGPU] Correctly set `IsKill` flag for VGPR custom spills in the prolog

[Christudasan Devadasan via Phabricator via llvm-commits]

cdevadas created this revision.
cdevadas added reviewers: arsenm, rampitec, sebastian-ne.
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We always assume the vector register is dead or killed while
inserting the custom spills in the prolog. It is not always
true. Used the entry block liveIn data while setting the flag.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D124194

Files:
  llvm/lib/Target/AMDGPU/SIFrameLowering.cpp
  llvm/test/CodeGen/AMDGPU/av_spill_cross_bb_usage.mir
  llvm/test/CodeGen/AMDGPU/pei-scavenge-sgpr-carry-out.mir
  llvm/test/CodeGen/AMDGPU/pei-scavenge-sgpr-gfx9.mir
  llvm/test/CodeGen/AMDGPU/pei-scavenge-sgpr.mir
  llvm/test/CodeGen/AMDGPU/pei-scavenge-vgpr-spill.mir
  llvm/test/CodeGen/AMDGPU/spill-reg-tuple-super-reg-use.mir
  llvm/test/CodeGen/AMDGPU/track-spilled-vgpr-liveness.mir

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