[all-commits] [llvm/llvm-project] 365aa1: [AArch64] Convert UADDV(add(zext, zext)) into UADD...

[Rin Dobrescu via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 365aa1574a1b4a3cdee6648227d095d00536ffde
      https://github.com/llvm/llvm-project/commit/365aa1574a1b4a3cdee6648227d095d00536ffde
  Author: Rin Dobrescu <irina.dobrescu at arm.com>
  Date:   2024-01-22 (Mon, 22 Jan 2024)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    A llvm/test/CodeGen/AArch64/aarch64-combine-add-zext.ll
    M llvm/test/CodeGen/AArch64/avoid-pre-trunc.ll
    M llvm/test/CodeGen/AArch64/vecreduce-add.ll

  Log Message:
  -----------
  [AArch64] Convert UADDV(add(zext, zext)) into UADDLV(concat). (#78301)

We can convert a UADDV(add(zext(64-bit source), zext(64-bit source)))
into UADDLV(concat), where the concat represents the 64-bit zext
sources.