151   BasicBlock *Preheader;  member
188       : Preheader(L->getLoopPreheader()), Header(L->getHeader()),  in FusionCandidate()
235     return Preheader && Header && ExitingBlock && ExitBlock && Latch && L &&  in isValid()
243     assert(Preheader == L->getLoopPreheader() && "Preheader is out of sync");  in verify()
260       return Preheader;  in getEntryBlock()
266     Preheader = L->getLoopPreheader();  in updateAfterPeeling()
287     return (GuardBranch->getSuccessor(0) == Preheader)  in getNonLoopBlock()
301            << "\tPreheader: " << (Preheader ? Preheader->getName() : "nullptr")  in dump()
321       if (!Preheader)  in isEligibleForFusion()
373     assert(L && Preheader && "Fusion candidate not initialized properly!");  in reportInvalidCandidate()
377                                         L->getStartLoc(), Preheader)  in reportInvalidCandidate()
378              << "[" << Preheader->getParent()->getName() << "]: "  in reportInvalidCandidate()
468     OS << FC.Preheader->getName();  in operator <<()
659     assert(FC0.Preheader && FC1.Preheader && "Expecting valid preheaders");  in isControlFlowEquivalent()
808       PDT.recalculate(*FC0.Preheader->getParent());  in peelFusionCandidate()
821           FC0.GuardBranch ? FC0.ExitBlock->getUniqueSuccessor() : FC1.Preheader;  in peelFusionCandidate()
1077     const BasicBlock *FC0PreheaderTarget = FC0.Preheader->getSingleSuccessor();  in canHoistInst()
1185     BasicBlock *FC1Preheader = FC1.Preheader;  in collectMovablePreheaderInsts()
1446     return FC.Preheader->size() == 1;  in isEmptyPreheader()
1456     assert(HoistInsts.size() + SinkInsts.size() == FC1.Preheader->size() - 1 &&  in movePreheaderInsts()
1475       assert(I->getParent() == FC1.Preheader);  in movePreheaderInsts()
1476       I->moveBefore(*FC0.Preheader,  in movePreheaderInsts()
1477                     FC0.Preheader->getTerminator()->getIterator());  in movePreheaderInsts()
1481       assert(I->getParent() == FC1.Preheader);  in movePreheaderInsts()
1513     if (FC0.GuardBranch->getSuccessor(0) == FC0.Preheader)  in haveIdenticalGuards()
1514       return (FC1.GuardBranch->getSuccessor(0) == FC1.Preheader);  in haveIdenticalGuards()
1516       return (FC1.GuardBranch->getSuccessor(1) == FC1.Preheader);  in haveIdenticalGuards()
1581     moveInstructionsToTheEnd(*FC1.Preheader, *FC0.Preheader, DT, PDT, DI);  in performFusion()
1589     assert(FC1.Preheader ==  in performFusion()
1591     assert(FC1.Preheader->size() == 1 &&  in performFusion()
1592            FC1.Preheader->getSingleSuccessor() == FC1.Header);  in performFusion()
1609     FC1.Preheader->replaceSuccessorsPhiUsesWith(FC0.Preheader);  in performFusion()
1633       FC0.ExitingBlock->getTerminator()->replaceUsesOfWith(FC1.Preheader,  in performFusion()
1636           DominatorTree::Delete, FC0.ExitingBlock, FC1.Preheader));  in performFusion()
1641           DominatorTree::Delete, FC0.ExitBlock, FC1.Preheader));  in performFusion()
1655     assert(pred_empty(FC1.Preheader));  in performFusion()
1656     FC1.Preheader->getTerminator()->eraseFromParent();  in performFusion()
1657     new UnreachableInst(FC1.Preheader->getContext(), FC1.Preheader);  in performFusion()
1659         DominatorTree::Delete, FC1.Preheader, FC1.Header));  in performFusion()
1717     LI.removeBlock(FC1.Preheader);  in performFusion()
1718     DTU.deleteBB(FC1.Preheader);  in performFusion()
1785     assert(FC0.Preheader && FC1.Preheader &&  in reportLoopFusion()
1791                         FC0.Preheader)  in reportLoopFusion()
1792              << "[" << FC0.Preheader->getParent()->getName()  in reportLoopFusion()
1793              << "]: " << NV("Cand1", StringRef(FC0.Preheader->getName()))  in reportLoopFusion()
1794              << " and " << NV("Cand2", StringRef(FC1.Preheader->getName()))  in reportLoopFusion()
1859         DominatorTree::Delete, FC1GuardBlock, FC1.Preheader));  in fuseGuardedLoops()
1901     FC1.Preheader->replaceSuccessorsPhiUsesWith(FC0.Preheader);  in fuseGuardedLoops()
1938     assert(pred_empty(FC1.Preheader));  in fuseGuardedLoops()
1939     FC1.Preheader->getTerminator()->eraseFromParent();  in fuseGuardedLoops()
1940     new UnreachableInst(FC1.Preheader->getContext(), FC1.Preheader);  in fuseGuardedLoops()
1942         DominatorTree::Delete, FC1.Preheader, FC1.Header));  in fuseGuardedLoops()
2009     LI.removeBlock(FC1.Preheader);  in fuseGuardedLoops()
2016     DTU.deleteBB(FC1.Preheader);  in fuseGuardedLoops()