[PATCH] D159336: Statically analyze likely and unlikely blocks based on metadata

[Aditya Kumar via Phabricator via llvm-commits]

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The C++ [unlikely] attribute assigns a low probability branch_weights to branch. This patch adds the the ability to query branch !prof metadata and improve static analysis based on that.

https://github.com/llvm/llvm-project/issues/64998


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D159336

Files:
  llvm/lib/Transforms/IPO/HotColdSplitting.cpp
  llvm/test/Transforms/HotColdSplit/split-static-profile.ll

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