[all-commits] [llvm/llvm-project] 687fbf: [MergeFunctions] Preserve instruction-level profil...

[Alok Kumar Sharma via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 687fbfae778ac2953c35920fb042446ef967c239
      https://github.com/llvm/llvm-project/commit/687fbfae778ac2953c35920fb042446ef967c239
  Author: Alok Kumar Sharma <AlokKumar.Sharma at amd.com>
  Date:   2026-07-16 (Thu, 16 Jul 2026)

  Changed paths:
    M llvm/include/llvm/Transforms/IPO/MergeFunctions.h
    M llvm/lib/Transforms/IPO/MergeFunctions.cpp
    A llvm/test/Transforms/MergeFunc/merge-functions-branch-weights.ll
    A llvm/test/Transforms/MergeFunc/merge-functions-reordered-blocks-branch-weights.ll
    A llvm/test/Transforms/MergeFunc/merge-functions-select-weights.ll
    A llvm/test/Transforms/MergeFunc/merge-functions-value-profile.ll
    M llvm/unittests/Transforms/IPO/MergeFunctionsTest.cpp

  Log Message:
  -----------
  [MergeFunctions] Preserve instruction-level profile metadata during merging (#208009)

Merge branch weights and value profile metadata when equivalent
functions are folded. Branch weights are relative, so we scale them
to absolute counts via BlockFrequencyInfo before combining. Value
profile counts are already absolute, so we just sum them directly.



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