[PATCH] D109357: [GlobalISel] Add a combine for and(load , mask) -> zextload

[Konstantin Schwarz via Phabricator via llvm-commits]

kschwarz created this revision.
kschwarz added reviewers: arsenm, foad, paquette, aemerson.
Herald added subscribers: kerbowa, hiraditya, rovka, nhaehnle, jvesely.
kschwarz requested review of this revision.
Herald added a subscriber: wdng.
Herald added a project: LLVM.

This only handles simple masks, not shifted masks, for now.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D109357

Files:
  llvm/include/llvm/CodeGen/GlobalISel/CombinerHelper.h
  llvm/include/llvm/Target/GlobalISel/Combine.td
  llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
  llvm/test/CodeGen/AArch64/GlobalISel/prelegalizer-combiner-load-and-mask.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/cvt_f32_ubyte.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/load-constant.96.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/load-local.128.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/load-local.96.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/load-unaligned.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/postlegalizercombiner-and.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/postlegalizercombiner-load-and-mask.mir
  llvm/test/CodeGen/AMDGPU/ctlz.ll
  llvm/test/CodeGen/AMDGPU/ctlz_zero_undef.ll
  llvm/test/CodeGen/AMDGPU/cttz_zero_undef.ll
  llvm/test/CodeGen/AMDGPU/ds-alignment.ll

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