[PATCH] D105920: [AMDGPU] Init scratch only if necessary

[Sebastian Neubauer via Phabricator via llvm-commits]

sebastian-ne created this revision.
sebastian-ne added reviewers: rampitec, arsenm, foad.
Herald added subscribers: kerbowa, hiraditya, t-tye, tpr, dstuttard, yaxunl, nhaehnle, jvesely, kzhuravl, qcolombet.
sebastian-ne requested review of this revision.
Herald added subscribers: llvm-commits, wdng.
Herald added a project: LLVM.

If no scratch or flat instructions are used, we do not need to
initialize the flat scratch hardware register.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D105920

Files:
  llvm/lib/Target/AMDGPU/SIFrameLowering.cpp
  llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.cpp
  llvm/test/CodeGen/AMDGPU/GlobalISel/dynamic-alloca-uniform.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/flat-scratch-init.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/non-entry-alloca.ll
  llvm/test/CodeGen/AMDGPU/call-constant.ll
  llvm/test/CodeGen/AMDGPU/cc-update.ll
  llvm/test/CodeGen/AMDGPU/chain-hi-to-lo.ll
  llvm/test/CodeGen/AMDGPU/flat-scratch-init.ll
  llvm/test/CodeGen/AMDGPU/large-alloca-compute.ll
  llvm/test/CodeGen/AMDGPU/local-stack-alloc-block-sp-reference.ll
  llvm/test/CodeGen/AMDGPU/memory_clause.ll
  llvm/test/CodeGen/AMDGPU/non-entry-alloca.ll
  llvm/test/CodeGen/AMDGPU/spill-offset-calculation.ll
  llvm/test/CodeGen/AMDGPU/stack-realign-kernel.ll

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