[PATCH] D102429: [CSSPGO] Update pseudo probe distribution factor based on inline context.

[Hongtao Yu via Phabricator via llvm-commits]

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With prelink inlining, pseudo probes with same ID can come from different inline contexts. Such probes should not share samples and their factors should be fixed up separately.

I'm seeing 0.3% speedup for SPEC2017 overall. Benchmark 631.deepsjeng_s benefits the most, about 4%.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D102429

Files:
  llvm/include/llvm/IR/PseudoProbe.h
  llvm/include/llvm/Transforms/IPO/SampleProfileProbe.h
  llvm/lib/IR/PseudoProbe.cpp
  llvm/lib/Transforms/IPO/SampleProfileProbe.cpp
  llvm/test/Transforms/SampleProfile/pseudo-probe-update-2.ll

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