[PATCH] D83641: [AMDGPU] Apply pre-emit s_cbranch_vcc optimation to more patterns

[Carl Ritson via Phabricator via llvm-commits]

critson created this revision.
critson added reviewers: cdevadas, rampitec, nhaehnle.
Herald added subscribers: llvm-commits, kerbowa, hiraditya, t-tye, tpr, dstuttard, yaxunl, wdng, jvesely, kzhuravl, arsenm.
Herald added a project: LLVM.

Depends on D83637 <https://reviews.llvm.org/D83637> for test correctness, but not operation.
Add handling of s_andn2 and mask of 0.
This eliminates code from uniform control flows.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D83641

Files:
  llvm/lib/Target/AMDGPU/SIPreEmitPeephole.cpp
  llvm/test/CodeGen/AMDGPU/branch-relaxation.ll
  llvm/test/CodeGen/AMDGPU/indirect-addressing-si.ll
  llvm/test/CodeGen/AMDGPU/infinite-loop.ll
  llvm/test/CodeGen/AMDGPU/insert-skip-from-vcc.mir
  llvm/test/CodeGen/AMDGPU/insert_vector_elt.ll
  llvm/test/CodeGen/AMDGPU/multi-divergent-exit-region.ll
  llvm/test/CodeGen/AMDGPU/sgpr-control-flow.ll
  llvm/test/CodeGen/AMDGPU/wave32.ll
  llvm/test/CodeGen/AMDGPU/wqm.ll

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