97     auto RMWI = dyn_cast<AtomicRMWInst>(I);  in runOnFunction()  local
99     assert((LI || SI || RMWI || CASI || isa<FenceInst>(I)) &&  in runOnFunction()
115       } else if (RMWI && (isAtLeastRelease(RMWI->getOrdering()) ||  in runOnFunction()
116                           isAtLeastAcquire(RMWI->getOrdering()))) {  in runOnFunction()
117         FenceOrdering = RMWI->getOrdering();  in runOnFunction()
118         RMWI->setOrdering(Monotonic);  in runOnFunction()
160     } else if (RMWI) {  in runOnFunction()
166       if (isIdempotentRMW(RMWI) && simplifyIdempotentRMW(RMWI)) {  in runOnFunction()
169         MadeChange |= tryExpandAtomicRMW(RMWI);  in runOnFunction()
595 bool AtomicExpand::isIdempotentRMW(AtomicRMWInst* RMWI) {  in isIdempotentRMW()  argument
596   auto C = dyn_cast<ConstantInt>(RMWI->getValOperand());  in isIdempotentRMW()
600   AtomicRMWInst::BinOp Op = RMWI->getOperation();  in isIdempotentRMW()
615 bool AtomicExpand::simplifyIdempotentRMW(AtomicRMWInst* RMWI) {  in simplifyIdempotentRMW()  argument
616   if (auto ResultingLoad = TLI->lowerIdempotentRMWIntoFencedLoad(RMWI)) {  in simplifyIdempotentRMW()