[all-commits] [llvm/llvm-project] c02ed2: [CostModel][X86] Recognise vector rotation by unif...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c02ed29ec151d1d555c3735efef2ab215126ddbf
      https://github.com/llvm/llvm-project/commit/c02ed29ec151d1d555c3735efef2ab215126ddbf
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2024-04-17 (Wed, 17 Apr 2024)

  Changed paths:
    M llvm/lib/Target/X86/X86TargetTransformInfo.cpp
    M llvm/test/Analysis/CostModel/X86/fshl-codesize.ll
    M llvm/test/Analysis/CostModel/X86/fshl-latency.ll
    M llvm/test/Analysis/CostModel/X86/fshl-sizelatency.ll
    M llvm/test/Analysis/CostModel/X86/fshl.ll
    M llvm/test/Analysis/CostModel/X86/fshr-codesize.ll
    M llvm/test/Analysis/CostModel/X86/fshr-latency.ll
    M llvm/test/Analysis/CostModel/X86/fshr-sizelatency.ll
    M llvm/test/Analysis/CostModel/X86/fshr.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-fshl-rot.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-fshr-rot.ll

  Log Message:
  -----------
  [CostModel][X86] Recognise vector rotation by uniform constant patterns

Adds suitable costs for AVX512 targets (we still rely on default expansion for AVX2 and earlier)



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