86 static void addNonNullAttribute(CallBase &CB, Value *Op) {  in addNonNullAttribute()  argument
88   for (auto &I : CB.args()) {  in addNonNullAttribute()
90       CB.addParamAttr(ArgNo, Attribute::NonNull);  in addNonNullAttribute()
95 static void setConstantInArgument(CallBase &CB, Value *Op,  in setConstantInArgument()  argument
98   for (auto &I : CB.args()) {  in setConstantInArgument()
102       CB.removeParamAttr(ArgNo, Attribute::NonNull);  in setConstantInArgument()
103       CB.setArgOperand(ArgNo, ConstValue);  in setConstantInArgument()
109 static bool isCondRelevantToAnyCallArgument(ICmpInst *Cmp, CallBase &CB) {  in isCondRelevantToAnyCallArgument()  argument
113   for (auto I = CB.arg_begin(), E = CB.arg_end(); I != E; ++I, ++ArgNo) {  in isCondRelevantToAnyCallArgument()
115     if (isa<Constant>(*I) || CB.paramHasAttr(ArgNo, Attribute::NonNull))  in isCondRelevantToAnyCallArgument()
129 static void recordCondition(CallBase &CB, BasicBlock *From, BasicBlock *To,  in recordCondition()  argument
142     if (isCondRelevantToAnyCallArgument(Cmp, CB))  in recordCondition()
152 static void recordConditions(CallBase &CB, BasicBlock *Pred,  in recordConditions()  argument
159     recordCondition(CB, From, To, Conditions);  in recordConditions()
165 static void addConditions(CallBase &CB, const ConditionsTy &Conditions) {  in addConditions()  argument
170       setConstantInArgument(CB, Arg, ConstVal);  in addConditions()
173       addNonNullAttribute(CB, Arg);  in addConditions()
184 static bool canSplitCallSite(CallBase &CB, TargetTransformInfo &TTI) {  in canSplitCallSite()  argument
185   if (CB.isConvergent() || CB.cannotDuplicate())  in canSplitCallSite()
190   if (!isa<CallInst>(CB))  in canSplitCallSite()
193   BasicBlock *CallSiteBB = CB.getParent();  in canSplitCallSite()
211        llvm::make_range(CallSiteBB->begin(), CB.getIterator())) {  in canSplitCallSite()
302 static void splitCallSite(CallBase &CB,  in splitCallSite()  argument
305   BasicBlock *TailBB = CB.getParent();  in splitCallSite()
306   bool IsMustTailCall = CB.isMustTailCall();  in splitCallSite()
313   if (!IsMustTailCall && !CB.use_empty()) {  in splitCallSite()
314     CallPN = PHINode::Create(CB.getType(), Preds.size(), "phi.call");  in splitCallSite()
315     CallPN->setDebugLoc(CB.getDebugLoc());  in splitCallSite()
318   LLVM_DEBUG(dbgs() << "split call-site : " << CB << " into \n");  in splitCallSite()
327         TailBB, PredBB, &*std::next(CB.getIterator()), ValueToValueMaps[i],  in splitCallSite()
338       for (auto &CI : CB.args()) {  in splitCallSite()
352       copyMustTailReturn(SplitBlock, &CB, NewCI);  in splitCallSite()
379     CB.replaceAllUsesWith(CallPN);  in splitCallSite()
389   auto I = CB.getReverseIterator();  in splitCallSite()
416 static bool isPredicatedOnPHI(CallBase &CB) {  in isPredicatedOnPHI()  argument
417   BasicBlock *Parent = CB.getParent();  in isPredicatedOnPHI()
418   if (&CB != Parent->getFirstNonPHIOrDbg())  in isPredicatedOnPHI()
422     for (auto &Arg : CB.args()) {  in isPredicatedOnPHI()
443 static PredsWithCondsTy shouldSplitOnPHIPredicatedArgument(CallBase &CB) {  in shouldSplitOnPHIPredicatedArgument()  argument
444   if (!isPredicatedOnPHI(CB))  in shouldSplitOnPHIPredicatedArgument()
447   auto Preds = getTwoPredecessors(CB.getParent());  in shouldSplitOnPHIPredicatedArgument()
454 static PredsWithCondsTy shouldSplitOnPredicatedArgument(CallBase &CB,  in shouldSplitOnPredicatedArgument()  argument
456   auto Preds = getTwoPredecessors(CB.getParent());  in shouldSplitOnPredicatedArgument()
465   auto *CSDTNode = DTU.getDomTree().getNode(CB.getParent());  in shouldSplitOnPredicatedArgument()
472     recordCondition(CB, Pred, CB.getParent(), Conditions);  in shouldSplitOnPredicatedArgument()
474     recordConditions(CB, Pred, Conditions, StopAt);  in shouldSplitOnPredicatedArgument()
486 static bool tryToSplitCallSite(CallBase &CB, TargetTransformInfo &TTI,  in tryToSplitCallSite()  argument
489   if (!CB.arg_size() || !canSplitCallSite(CB, TTI))  in tryToSplitCallSite()
492   auto PredsWithConds = shouldSplitOnPredicatedArgument(CB, DTU);  in tryToSplitCallSite()
494     PredsWithConds = shouldSplitOnPHIPredicatedArgument(CB);  in tryToSplitCallSite()
498   splitCallSite(CB, PredsWithConds, DTU);  in tryToSplitCallSite()
515       CallBase *CB = dyn_cast<CallBase>(&*II++);  in doCallSiteSplitting()  local
516       if (!CB || isa<IntrinsicInst>(CB) || isInstructionTriviallyDead(CB, &TLI))  in doCallSiteSplitting()
519       Function *Callee = CB->getCalledFunction();  in doCallSiteSplitting()
525       bool IsMustTail = CB->isMustTailCall();  in doCallSiteSplitting()
527       Changed |= tryToSplitCallSite(*CB, TTI, DTU);  in doCallSiteSplitting()