326 Instruction *InstCombiner::visitCallInst(CallInst &CI) {  in visitCallInst()  argument
327   auto Args = CI.arg_operands();  in visitCallInst()
328   if (Value *V = SimplifyCall(CI.getCalledValue(), Args.begin(), Args.end(), DL,  in visitCallInst()
330     return ReplaceInstUsesWith(CI, V);  in visitCallInst()
332   if (isFreeCall(&CI, TLI))  in visitCallInst()
333     return visitFree(CI);  in visitCallInst()
337   if (CI.getParent()->getParent()->doesNotThrow() &&  in visitCallInst()
338       !CI.doesNotThrow()) {  in visitCallInst()
339     CI.setDoesNotThrow();  in visitCallInst()
340     return &CI;  in visitCallInst()
343   IntrinsicInst *II = dyn_cast<IntrinsicInst>(&CI);  in visitCallInst()
344   if (!II) return visitCallSite(&CI);  in visitCallInst()
354         return EraseInstFromFunction(CI);  in visitCallInst()
356       if (ConstantInt *CI = dyn_cast<ConstantInt>(NumBytes))  in visitCallInst()  local
357         if (CI->getZExtValue() == 1) {  in visitCallInst()
374           Module *M = CI.getParent()->getParent()->getParent();  in visitCallInst()
376           Type *Tys[3] = { CI.getArgOperand(0)->getType(),  in visitCallInst()
377                            CI.getArgOperand(1)->getType(),  in visitCallInst()
378                            CI.getArgOperand(2)->getType() };  in visitCallInst()
379           CI.setCalledFunction(Intrinsic::getDeclaration(M, MemCpyID, Tys));  in visitCallInst()
387         return EraseInstFromFunction(CI);  in visitCallInst()
408       return ReplaceInstUsesWith(CI, ConstantInt::get(CI.getType(), Size));  in visitCallInst()
417         return ReplaceInstUsesWith(CI, X);  in visitCallInst()
434         return ReplaceInstUsesWith(CI, ConstantFP::get(CI.getType(), 1.0));  in visitCallInst()
437         return ReplaceInstUsesWith(CI, II->getArgOperand(0));  in visitCallInst()
440         return BinaryOperator::CreateFDiv(ConstantFP::get(CI.getType(), 1.0),  in visitCallInst()
457       return ReplaceInstUsesWith(CI, ConstantInt::get(IT,  in visitCallInst()
475       return ReplaceInstUsesWith(CI, ConstantInt::get(IT,  in visitCallInst()
517       return ReplaceInstUsesWith(CI, Arg0);  in visitCallInst()
531       return ReplaceInstUsesWith(CI, Arg0);  in visitCallInst()
538       return ReplaceInstUsesWith(CI, Arg1);  in visitCallInst()
542       return ReplaceInstUsesWith(CI, Arg0);  in visitCallInst()
551           return ReplaceInstUsesWith(CI, Arg1);  in visitCallInst()
558           return ReplaceInstUsesWith(CI, Arg0);  in visitCallInst()
566           return ReplaceInstUsesWith(CI, Arg1);  in visitCallInst()
574           return ReplaceInstUsesWith(CI, Arg1);  in visitCallInst()
581           return ReplaceInstUsesWith(CI, Arg0);  in visitCallInst()
589           return ReplaceInstUsesWith(CI, Arg1);  in visitCallInst()
751           CI, ConstantAggregateZero::get(Vec->getType()));  in visitCallInst()
824           return ReplaceInstUsesWith(CI, UndefValue::get(II->getType()));  in visitCallInst()
831               CI,  in visitCallInst()
874                 Module *M = CI.getParent()->getParent()->getParent();  in visitCallInst()
877                 return ReplaceInstUsesWith(CI, Builder->CreateCall(F, Args));  in visitCallInst()
964     return ReplaceInstUsesWith(CI, Shuffle);  in visitCallInst()
1029         return CastInst::Create(Instruction::BitCast, Result, CI.getType());  in visitCallInst()
1069       return ReplaceInstUsesWith(CI, ConstantAggregateZero::get(II->getType()));  in visitCallInst()
1081         return ReplaceInstUsesWith(CI, ConstantExpr::getMul(CV0, CV1));  in visitCallInst()
1108         return ReplaceInstUsesWith(CI, ConstantFP::get(II->getContext(), Val));  in visitCallInst()
1120           return EraseInstFromFunction(CI);  in visitCallInst()
1138             return EraseInstFromFunction(CI);  in visitCallInst()
1153       return EraseInstFromFunction(CI);  in visitCallInst()
1267                                          const CastInst *const CI,  in isSafeToEliminateVarargsCast()  argument
1269   if (!CI->isLosslessCast())  in isSafeToEliminateVarargsCast()
1287             cast<PointerType>(CI->getOperand(0)->getType())->getElementType();  in isSafeToEliminateVarargsCast()
1288   Type* DstTy = cast<PointerType>(CI->getType())->getElementType();  in isSafeToEliminateVarargsCast()
1300 Instruction *InstCombiner::tryOptimizeCall(CallInst *CI) {  in tryOptimizeCall()  argument
1301   if (!CI->getCalledFunction()) return nullptr;  in tryOptimizeCall()
1307   if (Value *With = Simplifier.optimizeCall(CI)) {  in tryOptimizeCall()
1309     return CI->use_empty() ? CI : ReplaceInstUsesWith(*CI, With);  in tryOptimizeCall()
1482       CastInst *CI = dyn_cast<CastInst>(*I);  in visitCallSite()  local
1483       if (CI && isSafeToEliminateVarargsCast(CS, DL, CI, ix)) {  in visitCallSite()
1484         *I = CI->getOperand(0);  in visitCallSite()
1499   if (CallInst *CI = dyn_cast<CallInst>(CS.getInstruction())) {  in visitCallSite()  local
1500     Instruction *I = tryOptimizeCall(CI);  in visitCallSite()
1736     CallInst *CI = cast<CallInst>(Caller);  in transformConstExprCastCall()  local
1738     NC->takeName(CI);  in transformConstExprCastCall()
1739     if (CI->isTailCall())  in transformConstExprCastCall()
1741     cast<CallInst>(NC)->setCallingConv(CI->getCallingConv());  in transformConstExprCastCall()