[PATCH] D115435: [AArch64] Add a tablegen pattern for UZP1.

[Alexandros Lamprineas via Phabricator via llvm-commits]

labrinea created this revision.
labrinea added reviewers: llvm-commits, dmgreen, jaykang10, SjoerdMeijer, momchil.velikov.
Herald added subscribers: hiraditya, kristof.beyls.
labrinea requested review of this revision.
Herald added a project: LLVM.

Converts concat_vectors(V64 (trunc V128), V64 (trunc V128)), which would otherwise be lowered as xtn followed by xtn2, to uzp1.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D115435

Files:
  llvm/lib/Target/AArch64/AArch64InstrInfo.td
  llvm/test/CodeGen/AArch64/arm64-convert-v4f64.ll
  llvm/test/CodeGen/AArch64/concat_vector-truncate-combine.ll
  llvm/test/CodeGen/AArch64/dag-combine-trunc-build-vec.ll
  llvm/test/CodeGen/AArch64/fcvt_combine.ll
  llvm/test/CodeGen/AArch64/fp16-v8-instructions.ll
  llvm/test/CodeGen/AArch64/fptosi-sat-vector.ll
  llvm/test/CodeGen/AArch64/fptoui-sat-vector.ll
  llvm/test/CodeGen/AArch64/neon-truncstore.ll

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