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[BOLT] Discard BB profiles with a hash of 0 in yaml from a Post-BAT binary #169627

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[BOLT] Discard BB profiles with a hash of 0 in yaml from a Post-BAT binary #169627

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2 changes: 2 additions & 0 deletions bolt/lib/Profile/DataAggregator.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2417,6 +2417,8 @@ std::error_code DataAggregator::writeBATYAML(BinaryContext &BC,
// Skip printing if there's no profile data
llvm::erase_if(
YamlBF.Blocks, [](const yaml::bolt::BinaryBasicBlockProfile &YamlBB) {
if ((size_t)YamlBB.Hash == 0)
return true;
auto HasCount = [](const auto &SI) { return SI.Count; };
bool HasAnyCount = YamlBB.ExecCount ||
llvm::any_of(YamlBB.Successors, HasCount) ||
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