[all-commits] [llvm/llvm-project] 9a77af: [X86] lowerV4F64Shuffle - prefer BLEND before UNPC...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9a77af37d8719bcfa97e31a730c1a401b91a8e14
      https://github.com/llvm/llvm-project/commit/9a77af37d8719bcfa97e31a730c1a401b91a8e14
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2025-05-22 (Thu, 22 May 2025)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/fp-round-with-concat-vector-undef-elem.ll
    M llvm/test/CodeGen/X86/subvector-broadcast.ll

  Log Message:
  -----------
  [X86] lowerV4F64Shuffle - prefer BLEND before UNPCK shuffle matching (#141073)

Use the same matching order as other 128/256-bit shuffles

Fixes regression identified in #139741



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