[all-commits] [llvm/llvm-project] 4e0428: [VPlan] Only use selectVectorizationFactor for cro...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4e04286d61edfb56338ca3a6d0735c5384508b00
      https://github.com/llvm/llvm-project/commit/4e04286d61edfb56338ca3a6d0735c5384508b00
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2024-08-21 (Wed, 21 Aug 2024)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/LoopVectorizationPlanner.h
    M llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
    M llvm/lib/Transforms/Vectorize/VPlan.cpp
    M llvm/test/Transforms/LoopVectorize/RISCV/riscv-vector-reverse.ll
    M llvm/test/Transforms/LoopVectorize/first-order-recurrence-chains-vplan.ll
    M llvm/test/tools/UpdateTestChecks/update_analyze_test_checks/Inputs/x86-loopvectorize-costmodel.ll.expected

  Log Message:
  -----------
  [VPlan] Only use selectVectorizationFactor for cross-check (NFCI). (#103033)

Use getBestVF to select VF up-front and only use
selectVectorizationFactor to get the VF legacy VF to check the
vectorization decision matches the VPlan-based cost model.

PR: https://github.com/llvm/llvm-project/pull/103033



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