[PATCH] D155055: [WIP][AMDGPU] Divergence-driven instruction selection for fshr

[Jay Foad via Phabricator via llvm-commits]

foad created this revision.
foad added a reviewer: AMDGPU.
Herald added subscribers: bzcheeseman, StephenFan, kerbowa, hiraditya, tpr, dstuttard, yaxunl, jvesely, kzhuravl, arsenm.
Herald added a project: All.
foad requested review of this revision.
Herald added subscribers: llvm-commits, wdng.
Herald added a project: LLVM.

Make divergent fshr legal since it is selected to v_alignbit, but
expand uniform fshr since there is no s_alignbit instruction.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D155055

Files:
  llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
  llvm/lib/Target/AMDGPU/AMDGPUISelLowering.h
  llvm/test/CodeGen/AMDGPU/bf16.ll
  llvm/test/CodeGen/AMDGPU/build-vector-packed-partial-undef.ll
  llvm/test/CodeGen/AMDGPU/build_vector.ll
  llvm/test/CodeGen/AMDGPU/divergence-driven-buildvector.ll
  llvm/test/CodeGen/AMDGPU/fneg-modifier-casting.ll
  llvm/test/CodeGen/AMDGPU/fp_to_sint.ll
  llvm/test/CodeGen/AMDGPU/fp_to_uint.ll
  llvm/test/CodeGen/AMDGPU/fshl.ll
  llvm/test/CodeGen/AMDGPU/fshr.ll
  llvm/test/CodeGen/AMDGPU/insert_vector_elt.v2i16.ll
  llvm/test/CodeGen/AMDGPU/load-constant-i8.ll
  llvm/test/CodeGen/AMDGPU/scalar_to_vector.ll
  llvm/test/CodeGen/AMDGPU/shl.ll
  llvm/test/CodeGen/AMDGPU/sra.ll
  llvm/test/CodeGen/AMDGPU/srl.ll

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