[PATCH] D80611: [BrachProbablityInfo] Proportional distribution of reachable probabilities

[Yevgeny Rouban via Phabricator via llvm-commits]

yrouban created this revision.
yrouban added reviewers: yamauchi, ebrevnov, skatkov, nikic.
Herald added a subscriber: hiraditya.
Herald added a project: LLVM.

When fixing probability of unreachable edges in //BranchProbabilityInfo::calcMetadataWeights()// proportionally distribute remainder probability over the reachable edges. The old implementation distributes the remainder probability evenly. See examples in the fixed tests.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D80611

Files:
  llvm/lib/Analysis/BranchProbabilityInfo.cpp
  llvm/test/Analysis/BranchProbabilityInfo/basic.ll

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