[all-commits] [llvm/llvm-project] 59c3dc: [AArch64] Remove copy instruction between uaddlv w...

JinGu Kang via All-commits all-commits at lists.llvm.org
Tue Sep 19 01:05:25 PDT 2023

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 59c3dcafd8f89d9fa31e3d2e0db5157f29459b31
  Author: JinGu Kang <jingu.kang at arm.com>
  Date:   2023-09-19 (Tue, 19 Sep 2023)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/lib/Target/AArch64/AArch64InstrInfo.td
    M llvm/test/CodeGen/AArch64/aarch64-neon-vector-insert-uaddlv.ll
    M llvm/test/CodeGen/AArch64/build-vector-to-extract-subvec-crash.ll
    M llvm/test/CodeGen/AArch64/neon-addlv.ll
    M llvm/test/CodeGen/AArch64/uaddlv-vaddlp-combine.ll

  Log Message:
  [AArch64] Remove copy instruction between uaddlv with v4i16/v8i16 and dup (#66508)

If there are copy instructions between uaddlv with v4i16/v8i16 and dup
for transfer from gpr to fpr, try to remove them with duplane. It is a
follow-up patch of https://reviews.llvm.org/D159267

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