[all-commits] [llvm/llvm-project] 092278: [X86][AVX] Match v4f64 blend from shuffle of scala...

[Leon Clark via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 0922789e4742e0961f8db171fea1590a8580937e
      https://github.com/llvm/llvm-project/commit/0922789e4742e0961f8db171fea1590a8580937e
  Author: Leon Clark <PeddleSpam at users.noreply.github.com>
  Date:   2025-05-06 (Tue, 06 May 2025)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/build-vector-256.ll
    M llvm/test/CodeGen/X86/build-vector-512.ll
    M llvm/test/CodeGen/X86/vector-shuffle-256-v4.ll

  Log Message:
  -----------
  [X86][AVX] Match v4f64 blend from shuffle of scalar values. (#135753)

Convert a BUILD_VECTOR of scalar values to a shuffle of shuffles that
will lower to AVX blend.

This addresses a regression in #128938.

---------

Co-authored-by: Leon Clark <leoclark at amd.com>



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