================
@@ -43,6 +43,57 @@ class YAMLProfileReader : public ProfileReaderBase {
using ProfileLookupMap =
DenseMap<uint32_t, yaml::bolt::BinaryFunctionProfile *>;
+ /// A class for matching binary functions in functions in the YAML profile.
+ /// First, a call graph is constructed for both profiled and binary
functions.
+ /// Then functions are hashed based on the names of their callee/caller
+ /// functions. Finally, functions are matched based on these neighbor hashes.
+ class CallGraphMatcher {
+ public:
+ /// Constructs the call graphs for binary and profiled functions and
+ /// computes neighbor hashes for binary functions.
+ CallGraphMatcher(BinaryContext &BC, yaml::bolt::BinaryProfile &YamlBP,
+ ProfileLookupMap &IdToYAMLBF);
+
+ /// Returns the YamlBFs adjacent to the parameter YamlBF in the call graph.
+ std::set<yaml::bolt::BinaryFunctionProfile *> *
----------------
aaupov wrote:
Please use `std::optional` type instead of a null-able pointer.
https://github.com/llvm/llvm-project/pull/98125
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