133     Function *F = CB->getCalledFunction();  in tryToReplaceWithConstant()  local
136     if (F)  in tryToReplaceWithConstant()
137       Solver.addToMustPreserveReturnsInFunctions(F);  in tryToReplaceWithConstant()
188 static bool runSCCP(Function &F, const DataLayout &DL,  in runSCCP()  argument
190   LLVM_DEBUG(dbgs() << "SCCP on function '" << F.getName() << "'\n");  in runSCCP()
192       DL, [TLI](Function &F) -> const TargetLibraryInfo & { return *TLI; },  in runSCCP()  argument
193       F.getContext());  in runSCCP()
196   Solver.markBlockExecutable(&F.front());  in runSCCP()
199   for (Argument &AI : F.args())  in runSCCP()
207     ResolvedUndefs = Solver.resolvedUndefsIn(F);  in runSCCP()
217   for (BasicBlock &BB : F) {  in runSCCP()
235 PreservedAnalyses SCCPPass::run(Function &F, FunctionAnalysisManager &AM) {  in run()  argument
236   const DataLayout &DL = F.getParent()->getDataLayout();  in run()
237   auto &TLI = AM.getResult<TargetLibraryAnalysis>(F);  in run()
238   if (!runSCCP(F, DL, &TLI))  in run()
270   bool runOnFunction(Function &F) override {  in runOnFunction()  argument
271     if (skipFunction(F))  in runOnFunction()
273     const DataLayout &DL = F.getParent()->getDataLayout();  in runOnFunction()
275         &getAnalysis<TargetLibraryInfoWrapperPass>().getTLI(F);  in runOnFunction()
276     return runSCCP(F, DL, TLI);  in runOnFunction()
293 static void findReturnsToZap(Function &F,  in findReturnsToZap()  argument
297   if (!Solver.isArgumentTrackedFunction(&F))  in findReturnsToZap()
300   if (Solver.mustPreserveReturn(&F)) {  in findReturnsToZap()
303         << "Can't zap returns of the function : " << F.getName()  in findReturnsToZap()
310       all_of(F.users(),  in findReturnsToZap()
331   for (BasicBlock &BB : F) {  in findReturnsToZap()
417   for (Function &F : M) {  in runIPSCCP()
418     if (F.isDeclaration())  in runIPSCCP()
421     Solver.addAnalysis(F, getAnalysis(F));  in runIPSCCP()
425     if (canTrackReturnsInterprocedurally(&F))  in runIPSCCP()
426       Solver.addTrackedFunction(&F);  in runIPSCCP()
430     if (canTrackArgumentsInterprocedurally(&F)) {  in runIPSCCP()
431       Solver.addArgumentTrackedFunction(&F);  in runIPSCCP()
436     Solver.markBlockExecutable(&F.front());  in runIPSCCP()
439     for (Argument &AI : F.args())  in runIPSCCP()
458     for (Function &F : M) {  in runIPSCCP()
459       if (Solver.resolvedUndefsIn(F))  in runIPSCCP()
471   for (Function &F : M) {  in runIPSCCP()
472     if (F.isDeclaration())  in runIPSCCP()
477     if (Solver.isBlockExecutable(&F.front())) {  in runIPSCCP()
479       for (Argument &Arg : F.args()) {  in runIPSCCP()
493         F.removeAttributes(AttributeList::FunctionIndex, AttributesToRemove);  in runIPSCCP()
495         for (User *U : F.users()) {  in runIPSCCP()
497           if (!CB || CB->getCalledFunction() != &F)  in runIPSCCP()
507     for (BasicBlock &BB : F) {  in runIPSCCP()
514         if (&BB != &F.front())  in runIPSCCP()
523     DomTreeUpdater DTU = Solver.getDTU(F);  in runIPSCCP()
532     if (!Solver.isBlockExecutable(&F.front()))  in runIPSCCP()
533       NumInstRemoved += changeToUnreachable(F.front().getFirstNonPHI(),  in runIPSCCP()
536     for (BasicBlock &BB : F)  in runIPSCCP()
542     for (BasicBlock &BB : F) {  in runIPSCCP()
571     Function *F = I.first;  in runIPSCCP()  local
583       for (User *User : F->users()) {  in runIPSCCP()
585         if (!CB || CB->getCalledFunction() != F)  in runIPSCCP()
609     if (F->getReturnType()->isVoidTy())  in runIPSCCP()
612       findReturnsToZap(*F, ReturnsToZap, Solver);  in runIPSCCP()
615   for (auto F : Solver.getMRVFunctionsTracked()) {  in runIPSCCP()  local
616     assert(F->getReturnType()->isStructTy() &&  in runIPSCCP()
618     StructType *STy = cast<StructType>(F->getReturnType());  in runIPSCCP()
619     if (Solver.isStructLatticeConstant(F, STy))  in runIPSCCP()
620       findReturnsToZap(*F, ReturnsToZap, Solver);  in runIPSCCP()
626     Function *F = ReturnsToZap[i]->getParent()->getParent();  in runIPSCCP()  local
627     ReturnsToZap[i]->setOperand(0, UndefValue::get(F->getReturnType()));  in runIPSCCP()
629     FuncZappedReturn.insert(F);  in runIPSCCP()
634   for (Function *F : FuncZappedReturn) {  in runIPSCCP()
635     for (Argument &A : F->args())  in runIPSCCP()
636       F->removeParamAttr(A.getArgNo(), Attribute::Returned);  in runIPSCCP()
637     for (Use &U : F->uses()) {  in runIPSCCP()