270 bool SimplifyIndvar::strengthenOverflowingOperation(BinaryOperator *BO,  in strengthenOverflowingOperation()  argument
274   if (BO->hasNoUnsignedWrap() && BO->hasNoSignedWrap())  in strengthenOverflowingOperation()
280   switch (BO->getOpcode()) {  in strengthenOverflowingOperation()
297   unsigned BitWidth = cast<IntegerType>(BO->getType())->getBitWidth();  in strengthenOverflowingOperation()
298   Type *WideTy = IntegerType::get(BO->getContext(), BitWidth * 2);  in strengthenOverflowingOperation()
299   const SCEV *LHS = SE->getSCEV(BO->getOperand(0));  in strengthenOverflowingOperation()
300   const SCEV *RHS = SE->getSCEV(BO->getOperand(1));  in strengthenOverflowingOperation()
304   if (!BO->hasNoUnsignedWrap()) {  in strengthenOverflowingOperation()
305     const SCEV *ExtendAfterOp = SE->getZeroExtendExpr(SE->getSCEV(BO), WideTy);  in strengthenOverflowingOperation()
310       BO->setHasNoUnsignedWrap();  in strengthenOverflowingOperation()
311       SE->forgetValue(BO);  in strengthenOverflowingOperation()
316   if (!BO->hasNoSignedWrap()) {  in strengthenOverflowingOperation()
317     const SCEV *ExtendAfterOp = SE->getSignExtendExpr(SE->getSCEV(BO), WideTy);  in strengthenOverflowingOperation()
322       BO->setHasNoSignedWrap();  in strengthenOverflowingOperation()
323       SE->forgetValue(BO);  in strengthenOverflowingOperation()
491     if (BinaryOperator *BO = dyn_cast<BinaryOperator>(UseOper.first)) {  in simplifyUsers()  local
492       if (isa<OverflowingBinaryOperator>(BO) &&  in simplifyUsers()
493           strengthenOverflowingOperation(BO, IVOperand)) {  in simplifyUsers()