177   mutable AssertingVH<Function> F;  member in __anonbeb1b5730111::FunctionNode
182   FunctionNode(Function *F)  in FunctionNode()  argument
183     : F(F), Hash(FunctionComparator::functionHash(*F))  {}  in FunctionNode()
185   Function *getFunc() const { return F; }  in getFunc()
191     F = G;  in replaceBy()
194   void release() { F = nullptr; }  in release()
249   void remove(Function *F);
262   void mergeTwoFunctions(Function *F, Function *G);
279   void writeThunk(Function *F, Function *G);
282   void writeAlias(Function *F, Function *G);
286   bool writeThunkOrAlias(Function *F, Function *G);
432       Function *F = cast<Function>(I);  in runOnModule()  local
433       if (!F->isDeclaration() && !F->hasAvailableExternallyLinkage()) {  in runOnModule()
434         Changed |= insert(F);  in runOnModule()
659 static bool isThunkProfitable(Function * F) {  in isThunkProfitable()  argument
660   if (F->size() == 1) {  in isThunkProfitable()
661     if (F->front().size() <= 2) {  in isThunkProfitable()
662       LLVM_DEBUG(dbgs() << "isThunkProfitable: " << F->getName()  in isThunkProfitable()
678 void MergeFunctions::writeThunk(Function *F, Function *G) {  in writeThunk()  argument
698     BB = BasicBlock::Create(F->getContext(), "", NewG);  in writeThunk()
705   FunctionType *FFTy = F->getFunctionType();  in writeThunk()
711   CallInst *CI = Builder.CreateCall(F, Args);  in writeThunk()
714   CI->setCallingConv(F->getCallingConv());  in writeThunk()
715   CI->setAttributes(F->getAttributes());  in writeThunk()
752 static bool canCreateAliasFor(Function *F) {  in canCreateAliasFor()  argument
753   if (!MergeFunctionsAliases || !F->hasGlobalUnnamedAddr())  in canCreateAliasFor()
757   assert(F->hasLocalLinkage() || F->hasExternalLinkage()  in canCreateAliasFor()
758       || F->hasWeakLinkage() || F->hasLinkOnceLinkage());  in canCreateAliasFor()
763 void MergeFunctions::writeAlias(Function *F, Function *G) {  in writeAlias()  argument
764   Constant *BitcastF = ConstantExpr::getBitCast(F, G->getType());  in writeAlias()
770   F->setAlignment(std::max(F->getAlignment(), G->getAlignment()));  in writeAlias()
785 bool MergeFunctions::writeThunkOrAlias(Function *F, Function *G) {  in writeThunkOrAlias()  argument
787     writeAlias(F, G);  in writeThunkOrAlias()
790   if (isThunkProfitable(F)) {  in writeThunkOrAlias()
791     writeThunk(F, G);  in writeThunkOrAlias()
798 void MergeFunctions::mergeTwoFunctions(Function *F, Function *G) {  in mergeTwoFunctions()  argument
799   if (F->isInterposable()) {  in mergeTwoFunctions()
805     if (!isThunkProfitable(F) && (!canCreateAliasFor(F) || !canCreateAliasFor(G))) {  in mergeTwoFunctions()
810     Function *NewF = Function::Create(F->getFunctionType(), F->getLinkage(),  in mergeTwoFunctions()
811                                       F->getAddressSpace(), "", F->getParent());  in mergeTwoFunctions()
812     NewF->copyAttributesFrom(F);  in mergeTwoFunctions()
813     NewF->takeName(F);  in mergeTwoFunctions()
814     removeUsers(F);  in mergeTwoFunctions()
815     F->replaceAllUsesWith(NewF);  in mergeTwoFunctions()
819     writeThunkOrAlias(F, G);  in mergeTwoFunctions()
820     writeThunkOrAlias(F, NewF);  in mergeTwoFunctions()
822     F->setAlignment(MaxAlignment);  in mergeTwoFunctions()
823     F->setLinkage(GlobalValue::PrivateLinkage);  in mergeTwoFunctions()
835         Constant *BitcastF = ConstantExpr::getBitCast(F, G->getType());  in mergeTwoFunctions()
841         replaceDirectCallers(G, F);  in mergeTwoFunctions()
854     if (writeThunkOrAlias(F, G)) {  in mergeTwoFunctions()
863   Function *F = FN.getFunc();  in replaceFunctionInTree()  local
864   assert(FunctionComparator(F, G, &GlobalNumbers).compare() == 0 &&  in replaceFunctionInTree()
867   auto I = FNodesInTree.find(F);  in replaceFunctionInTree()
881 static bool isFuncOrderCorrect(const Function *F, const Function *G) {  in isFuncOrderCorrect()  argument
882   if (F->isInterposable() != G->isInterposable()) {  in isFuncOrderCorrect()
885     return !F->isInterposable();  in isFuncOrderCorrect()
887   if (F->hasLocalLinkage() != G->hasLocalLinkage()) {  in isFuncOrderCorrect()
890     return !F->hasLocalLinkage();  in isFuncOrderCorrect()
895   return F->getName() <= G->getName();  in isFuncOrderCorrect()
916     Function *F = OldF.getFunc();  in insert()  local
918     NewFunction = F;  in insert()
919     assert(OldF.getFunc() != F && "Must have swapped the functions.");  in insert()
932 void MergeFunctions::remove(Function *F) {  in remove()  argument
933   auto I = FNodesInTree.find(F);  in remove()
935     LLVM_DEBUG(dbgs() << "Deferred " << F->getName() << ".\n");  in remove()
940     Deferred.emplace_back(F);  in remove()