[all-commits] [llvm/llvm-project] 4903a7: [ctxprof][nfc] Move profile annotator to Analysis ...

[Mircea Trofin via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4903a7b77b56c7d9a650205b6e7dca46581c7134
      https://github.com/llvm/llvm-project/commit/4903a7b77b56c7d9a650205b6e7dca46581c7134
  Author: Mircea Trofin <mtrofin at google.com>
  Date:   2025-04-16 (Wed, 16 Apr 2025)

  Changed paths:
    M llvm/include/llvm/Analysis/CtxProfAnalysis.h
    M llvm/lib/Analysis/CtxProfAnalysis.cpp
    M llvm/lib/Transforms/Instrumentation/PGOCtxProfFlattening.cpp

  Log Message:
  -----------
  [ctxprof][nfc] Move profile annotator to Analysis (#135871)

This moves the utility that propagates counter values such that we can reuse it elsewhere. Specifically, in a subsequent patch, it'll be used to guide ICP: we need to prioritize promoting indirect calls that dominate larger portions of the dynamic instruction count. We can compare them based on the dynamic count of IR instructions, and we can get that early with this counter propagation logic.

The patch is mostly a move of the existing logic, with a pimpl - style implementation to hide all the current complexity.



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