Differential D18213 Diff 50830 include/llvm/IR/FunctionInfo.h

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include/llvm/IR/FunctionInfo.h

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/// insertions and resizing.		/// insertions and resizing.
typedef std::map<uint64_t, GlobalValueInfoList> GlobalValueInfoMapTy;		typedef std::map<uint64_t, GlobalValueInfoList> GlobalValueInfoMapTy;

/// Type used for iterating through the global value info map.		/// Type used for iterating through the global value info map.
typedef GlobalValueInfoMapTy::const_iterator const_globalvalueinfo_iterator;		typedef GlobalValueInfoMapTy::const_iterator const_globalvalueinfo_iterator;
typedef GlobalValueInfoMapTy::iterator globalvalueinfo_iterator;		typedef GlobalValueInfoMapTy::iterator globalvalueinfo_iterator;

/// String table to hold/own module path strings, which additionally holds the		/// String table to hold/own module path strings, which additionally holds the
/// module ID assigned to each module during the plugin step. The StringMap		/// module ID assigned to each module during the plugin step, as well as a hash
/// makes a copy of and owns inserted strings.		/// of the module. The StringMap makes a copy of and owns inserted strings.
typedef StringMap<uint64_t> ModulePathStringTableTy;		typedef StringMap<std::pair<uint64_t, unsigned>> ModulePathStringTableTy;

/// Class to hold module path string table and global value map,		/// Class to hold module path string table and global value map,
/// and encapsulate methods for operating on them.		/// and encapsulate methods for operating on them.
/// FIXME: Rename this and other uses of Function.*Index to something		/// FIXME: Rename this and other uses of Function.*Index to something
/// that reflects the now-expanded scope of the summary beyond just functions.		/// that reflects the now-expanded scope of the summary beyond just functions.
class FunctionInfoIndex {		class FunctionInfoIndex {
private:		private:
/// Map from value name to list of information instances for values of that		/// Map from value name to list of information instances for values of that
▲ Show 20 Lines • Show All 43 Lines • ▼ Show 20 Lines	public:

/// Add a global value info for a value of the given GUID.		/// Add a global value info for a value of the given GUID.
void addGlobalValueInfo(uint64_t ValueGUID,		void addGlobalValueInfo(uint64_t ValueGUID,
std::unique_ptr<GlobalValueInfo> Info) {		std::unique_ptr<GlobalValueInfo> Info) {
GlobalValueMap[ValueGUID].push_back(std::move(Info));		GlobalValueMap[ValueGUID].push_back(std::move(Info));
}		}

/// Iterator to allow writer to walk through table during emission.		/// Iterator to allow writer to walk through table during emission.
const StringMap<uint64_t> &modulePaths() const {		const StringMap<std::pair<uint64_t, unsigned>> &modulePaths() const {
		return ModulePathStringTable;
		}

		/// Iterator
		StringMap<std::pair<uint64_t, unsigned>> &modulePaths() {
return ModulePathStringTable;		return ModulePathStringTable;
}		}

/// Get the module ID recorded for the given module path.		/// Get the module ID recorded for the given module path.
uint64_t getModuleId(const StringRef ModPath) const {		uint64_t getModuleId(const StringRef ModPath) const {
return ModulePathStringTable.lookup(ModPath);		return ModulePathStringTable.lookup(ModPath).first;
		}

		/// Get the module ID recorded for the given module path.
		unsigned getModuleHash(const StringRef ModPath) const {
		return ModulePathStringTable.lookup(ModPath).second;
}		}

/// Add the given per-module index into this module index/summary,		/// Add the given per-module index into this module index/summary,
/// assigning it the given module ID. Each module merged in should have		/// assigning it the given module ID. Each module merged in should have
/// a unique ID, necessary for consistent renaming of promoted		/// a unique ID, necessary for consistent renaming of promoted
/// static (local) variables.		/// static (local) variables.
void mergeFrom(std::unique_ptr<FunctionInfoIndex> Other,		void mergeFrom(std::unique_ptr<FunctionInfoIndex> Other,
uint64_t NextModuleId);		uint64_t NextModuleId);

/// Convenience method for creating a promoted global name		/// Convenience method for creating a promoted global name
/// for the given value name of a local, and its original module's ID.		/// for the given value name of a local, and its original module's ID.
static std::string getGlobalNameForLocal(StringRef Name, uint64_t ModId) {		static std::string getGlobalNameForLocal(StringRef Name, uint64_t ModId) {
SmallString<256> NewName(Name);		SmallString<256> NewName(Name);
NewName += ".llvm.";		NewName += ".llvm.";
raw_svector_ostream(NewName) << ModId;		raw_svector_ostream(NewName) << ModId;
return NewName.str();		return NewName.str();
}		}

/// Add a new module path, mapped to the given module Id, and return StringRef		/// Add a new module path, mapped to the given module Id, and return StringRef
/// owned by string table map.		/// owned by string table map.
StringRef addModulePath(StringRef ModPath, uint64_t ModId) {		StringRef addModulePath(StringRef ModPath, uint64_t ModId,
return ModulePathStringTable.insert(std::make_pair(ModPath, ModId))		unsigned Hash = 0) {
		return ModulePathStringTable.insert(std::make_pair(
		ModPath, std::make_pair(ModId, 0)))
.first->first();		.first->first();
}		}

/// Check if the given Module has any functions available for exporting		/// Check if the given Module has any functions available for exporting
/// in the index. We consider any module present in the ModulePathStringTable		/// in the index. We consider any module present in the ModulePathStringTable
/// to have exported functions.		/// to have exported functions.
bool hasExportedFunctions(const Module &M) const {		bool hasExportedFunctions(const Module &M) const {
return ModulePathStringTable.count(M.getModuleIdentifier());		return ModulePathStringTable.count(M.getModuleIdentifier());
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