[all-commits] [llvm/llvm-project] 44cfbe: [AArch64] Lower partial add reduction to udot or s...

[Sam Tebbs via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 44cfbef1b3cb0dd33886cc27441930008a245963
      https://github.com/llvm/llvm-project/commit/44cfbef1b3cb0dd33886cc27441930008a245963
  Author: Sam Tebbs <samuel.tebbs at arm.com>
  Date:   2024-09-02 (Mon, 02 Sep 2024)

  Changed paths:
    M llvm/include/llvm/CodeGen/SelectionDAG.h
    M llvm/include/llvm/CodeGen/TargetLowering.h
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/lib/Target/AArch64/AArch64ISelLowering.h
    A llvm/test/CodeGen/AArch64/partial-reduce-dot-product.ll

  Log Message:
  -----------
  [AArch64] Lower partial add reduction to udot or svdot (#101010)

This patch introduces lowering of the partial add reduction intrinsic to
a udot or svdot for AArch64. This also involves adding a
`shouldExpandPartialReductionIntrinsic` target hook, which AArch64 will
return false from in the cases that it can be lowered.



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