[PATCH] D156413: [AMDGPU][PEI] Set up SP for chain functions

[Diana Picus via Phabricator via llvm-commits]

rovka created this revision.
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Initialize the SP to 0 in the prologue of functions with the
`amdgpu_cs_chain` or `amdgpu_cs_chain_preserve` calling conventions, but
only if they need one (i.e. if they contain calls to `amdgpu_gfx`
functions or if they have stack objects).


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D156413

Files:
  llvm/lib/Target/AMDGPU/SIFrameLowering.cpp
  llvm/test/CodeGen/AMDGPU/amdgpu-cs-chain-cc.ll
  llvm/test/CodeGen/AMDGPU/amdgpu-cs-chain-preserve-cc.ll
  llvm/test/CodeGen/AMDGPU/pei-amdgpu-cs-chain-preserve.mir
  llvm/test/CodeGen/AMDGPU/pei-amdgpu-cs-chain.mir

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