151   BasicBlock *Preheader;  member
189       : Preheader(L->getLoopPreheader()), Header(L->getHeader()),  in FusionCandidate()
236     return Preheader && Header && ExitingBlock && ExitBlock && Latch && L &&  in isValid()
244     assert(Preheader == L->getLoopPreheader() && "Preheader is out of sync");  in verify()
261       return Preheader;  in getEntryBlock()
267     Preheader = L->getLoopPreheader();  in updateAfterPeeling()
288     return (GuardBranch->getSuccessor(0) == Preheader)  in getNonLoopBlock()
302            << "\tPreheader: " << (Preheader ? Preheader->getName() : "nullptr")  in dump()
322       if (!Preheader)  in isEligibleForFusion()
374     assert(L && Preheader && "Fusion candidate not initialized properly!");  in reportInvalidCandidate()
378                                         L->getStartLoc(), Preheader)  in reportInvalidCandidate()
379              << "[" << Preheader->getParent()->getName() << "]: "  in reportInvalidCandidate()
443     OS << FC.Preheader->getName();  in operator <<()
635     assert(FC0.Preheader && FC1.Preheader && "Expecting valid preheaders");  in isControlFlowEquivalent()
784       PDT.recalculate(*FC0.Preheader->getParent());  in peelFusionCandidate()
797           FC0.GuardBranch ? FC0.ExitBlock->getUniqueSuccessor() : FC1.Preheader;  in peelFusionCandidate()
917           if (!isSafeToMoveBefore(*FC1->Preheader,  in fuseCandidates()
918                                   *FC0->Preheader->getTerminator(), DT, &PDT,  in fuseCandidates()
1265     if (FC0.GuardBranch->getSuccessor(0) == FC0.Preheader)  in haveIdenticalGuards()
1266       return (FC1.GuardBranch->getSuccessor(0) == FC1.Preheader);  in haveIdenticalGuards()
1268       return (FC1.GuardBranch->getSuccessor(1) == FC1.Preheader);  in haveIdenticalGuards()
1333     moveInstructionsToTheEnd(*FC1.Preheader, *FC0.Preheader, DT, PDT, DI);  in performFusion()
1341     assert(FC1.Preheader ==  in performFusion()
1343     assert(FC1.Preheader->size() == 1 &&  in performFusion()
1344            FC1.Preheader->getSingleSuccessor() == FC1.Header);  in performFusion()
1361     FC1.Preheader->replaceSuccessorsPhiUsesWith(FC0.Preheader);  in performFusion()
1385       FC0.ExitingBlock->getTerminator()->replaceUsesOfWith(FC1.Preheader,  in performFusion()
1388           DominatorTree::Delete, FC0.ExitingBlock, FC1.Preheader));  in performFusion()
1393           DominatorTree::Delete, FC0.ExitBlock, FC1.Preheader));  in performFusion()
1407     assert(pred_empty(FC1.Preheader));  in performFusion()
1408     FC1.Preheader->getTerminator()->eraseFromParent();  in performFusion()
1409     new UnreachableInst(FC1.Preheader->getContext(), FC1.Preheader);  in performFusion()
1411         DominatorTree::Delete, FC1.Preheader, FC1.Header));  in performFusion()
1468     LI.removeBlock(FC1.Preheader);  in performFusion()
1469     DTU.deleteBB(FC1.Preheader);  in performFusion()
1535     assert(FC0.Preheader && FC1.Preheader &&  in reportLoopFusion()
1541                         FC0.Preheader)  in reportLoopFusion()
1542              << "[" << FC0.Preheader->getParent()->getName()  in reportLoopFusion()
1543              << "]: " << NV("Cand1", StringRef(FC0.Preheader->getName()))  in reportLoopFusion()
1544              << " and " << NV("Cand2", StringRef(FC1.Preheader->getName()))  in reportLoopFusion()
1609         DominatorTree::Delete, FC1GuardBlock, FC1.Preheader));  in fuseGuardedLoops()
1651     FC1.Preheader->replaceSuccessorsPhiUsesWith(FC0.Preheader);  in fuseGuardedLoops()
1688     assert(pred_empty(FC1.Preheader));  in fuseGuardedLoops()
1689     FC1.Preheader->getTerminator()->eraseFromParent();  in fuseGuardedLoops()
1690     new UnreachableInst(FC1.Preheader->getContext(), FC1.Preheader);  in fuseGuardedLoops()
1692         DominatorTree::Delete, FC1.Preheader, FC1.Header));  in fuseGuardedLoops()
1758     LI.removeBlock(FC1.Preheader);  in fuseGuardedLoops()
1765     DTU.deleteBB(FC1.Preheader);  in fuseGuardedLoops()