[all-commits] [llvm/llvm-project] 42ddb5: [X86] combineINSERT_SUBVECTOR - peek through bitca...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 42ddb550174887359fa1393cb76843475c283159
      https://github.com/llvm/llvm-project/commit/42ddb550174887359fa1393cb76843475c283159
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2025-03-14 (Fri, 14 Mar 2025)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/vector-interleaved-store-i16-stride-5.ll
    M llvm/test/CodeGen/X86/vector-interleaved-store-i16-stride-6.ll
    M llvm/test/CodeGen/X86/vector-interleaved-store-i8-stride-5.ll
    M llvm/test/CodeGen/X86/vector-interleaved-store-i8-stride-6.ll
    M llvm/test/CodeGen/X86/vector-interleaved-store-i8-stride-7.ll
    M llvm/test/CodeGen/X86/vector-interleaved-store-i8-stride-8.ll
    M llvm/test/CodeGen/X86/vector-shuffle-512-v64.ll

  Log Message:
  -----------
  [X86] combineINSERT_SUBVECTOR - peek through bitcasts to find a concatenation of subvector shuffles (#131331)

Extend existing concat(shuffle(),shuffle(),..) shuffle combining to handle mixed bitcasts such as concat(shuffle(),bitcast(shuffle()),...)



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