[all-commits] [llvm/llvm-project] ce4801: [X86] vpdpwssd.ll - add test coverage for #118443

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ce4801d373df1c2ddcc602add133066640c7073d
      https://github.com/llvm/llvm-project/commit/ce4801d373df1c2ddcc602add133066640c7073d
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2024-12-06 (Fri, 06 Dec 2024)

  Changed paths:
    M llvm/test/CodeGen/X86/vpdpwssd.ll

  Log Message:
  -----------
  [X86] vpdpwssd.ll - add test coverage for #118443


  Commit: 9d2351ab9aff3741e3f4e10ab7ebabc77a6079d6
      https://github.com/llvm/llvm-project/commit/9d2351ab9aff3741e3f4e10ab7ebabc77a6079d6
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2024-12-06 (Fri, 06 Dec 2024)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/vpdpwssd.ll

  Log Message:
  -----------
  [X86] matchPMADDWD - add matching for (add (X, (pmaddwd Y, Z)) reassociation patterns.

Allows us to match pmaddwd accumulation patterns, and folding to vpdpwssd instructions on VNNI targets

Fixes #118433


Compare: https://github.com/llvm/llvm-project/compare/f081ffe70165...9d2351ab9aff

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