122 static std::pair<Value *, Value *> matchStridedStart(Value *Start,  in matchStridedStart()  argument
125   auto *StartC = dyn_cast<Constant>(Start);  in matchStridedStart()
130   if (match(Start, m_Intrinsic<Intrinsic::experimental_stepvector>())) {  in matchStridedStart()
131     auto *Ty = Start->getType()->getScalarType();  in matchStridedStart()
137   auto *BO = dyn_cast<BinaryOperator>(Start);  in matchStridedStart()
159   std::tie(Start, Stride) = matchStridedStart(BO->getOperand(OtherIndex),  in matchStridedStart()
161   if (!Start)  in matchStridedStart()
176     Start = Builder.CreateAdd(Start, Splat);  in matchStridedStart()
179     Start = Builder.CreateMul(Start, Splat);  in matchStridedStart()
183     Start = Builder.CreateShl(Start, Splat);  in matchStridedStart()
188   return std::make_pair(Start, Stride);  in matchStridedStart()
207     Value *Step, *Start;  in matchStridedRecurrence()  local
208     if (!matchSimpleRecurrence(Phi, Inc, Start, Step) ||  in matchStridedRecurrence()
225     std::tie(Start, Stride) = matchStridedStart(Start, Builder);  in matchStridedRecurrence()
226     if (!Start)  in matchStridedRecurrence()
232         PHINode::Create(Start->getType(), 2, Phi->getName() + ".scalar", Phi->getIterator());  in matchStridedRecurrence()
235     BasePtr->addIncoming(Start, Phi->getIncomingBlock(1 - IncrementingBlock));  in matchStridedRecurrence()
296   Value *Start = BasePtr->getOperand(StartBlock);  in matchStridedRecurrence()  local
310     Start = Builder.CreateAdd(Start, SplatOp, "start");  in matchStridedRecurrence()
314     Start = Builder.CreateMul(Start, SplatOp, "start");  in matchStridedRecurrence()
320     Start = Builder.CreateShl(Start, SplatOp, "start");  in matchStridedRecurrence()
328   BasePtr->setIncomingValue(StartBlock, Start);  in matchStridedRecurrence()
423   auto [Start, Stride] = matchStridedStart(VecIndex, Builder);  in determineBaseAndStride()
424   if (Start) {  in determineBaseAndStride()
429     Ops[*VecOperand] = Start;  in determineBaseAndStride()