381       SDB(std::make_unique<SelectionDAGBuilder>(*CurDAG, *FuncInfo, *SwiftError,  in SelectionDAGISel()
600   SDB->init(GFI, AA, AC, LibInfo);  in runOnMachineFunction()
801   // Release function-specific state. SDB and CurDAG are already cleared  in runOnMachineFunction()
836   for (BasicBlock::const_iterator I = Begin; I != End && !SDB->HasTailCall; ++I) {  in SelectBasicBlock()
838       SDB->visit(*I);  in SelectBasicBlock()
840       SDB->visitDbgInfo(*I);  in SelectBasicBlock()
844   CurDAG->setRoot(SDB->getControlRoot());  in SelectBasicBlock()
845   HadTailCall = SDB->HasTailCall;  in SelectBasicBlock()
846   SDB->resolveOrClearDbgInfo();  in SelectBasicBlock()
847   SDB->clear();  in SelectBasicBlock()
1132     SDB->UpdateSplitBlock(FirstMBB, LastMBB);  in CodeGenAndEmitDAG()
1405         BuildMI(*MBB, FuncInfo->InsertPt, SDB->getCurDebugLoc(),  in PrepareEHLandingPad()
1418   BuildMI(*MBB, FuncInfo->InsertPt, SDB->getCurDebugLoc(), II)  in PrepareEHLandingPad()
1432     MF->setCallSiteLandingPad(Label, SDB->LPadToCallSiteMap[MBB]);  in PrepareEHLandingPad()
1468       BuildMI(MBB, MBBb, SDB->getCurDebugLoc(),  in reportIPToStateForBlocks()
1477       BuildMI(MBB, MBBe, SDB->getCurDebugLoc(),  in reportIPToStateForBlocks()
1643       CurDAG->setRoot(SDB->getControlRoot());  in SelectAllBasicBlocks()
1644       SDB->clear();  in SelectAllBasicBlocks()
1657   bool Inserted = SwiftError->createEntriesInEntryBlock(SDB->getCurDebugLoc());  in SelectAllBasicBlocks()
1849       SDB->SPDescriptor.initialize(LLVMBB, FuncInfo->MBBMap[LLVMBB],  in SelectAllBasicBlocks()
1888   SDB->clearDanglingDebugInfo();  in SelectAllBasicBlocks()
1889   SDB->SPDescriptor.resetPerFunctionState();  in SelectAllBasicBlocks()
1913   if (SDB->SPDescriptor.shouldEmitFunctionBasedCheckStackProtector()) {  in FinishBasicBlock()
1916     MachineBasicBlock *ParentMBB = SDB->SPDescriptor.getParentMBB();  in FinishBasicBlock()
1922     SDB->visitSPDescriptorParent(SDB->SPDescriptor, ParentMBB);  in FinishBasicBlock()
1923     CurDAG->setRoot(SDB->getRoot());  in FinishBasicBlock()
1924     SDB->clear();  in FinishBasicBlock()
1928     SDB->SPDescriptor.resetPerBBState();  in FinishBasicBlock()
1929   } else if (SDB->SPDescriptor.shouldEmitStackProtector()) {  in FinishBasicBlock()
1930     MachineBasicBlock *ParentMBB = SDB->SPDescriptor.getParentMBB();  in FinishBasicBlock()
1931     MachineBasicBlock *SuccessMBB = SDB->SPDescriptor.getSuccessMBB();  in FinishBasicBlock()
1950     SDB->visitSPDescriptorParent(SDB->SPDescriptor, ParentMBB);  in FinishBasicBlock()
1951     CurDAG->setRoot(SDB->getRoot());  in FinishBasicBlock()
1952     SDB->clear();  in FinishBasicBlock()
1956     MachineBasicBlock *FailureMBB = SDB->SPDescriptor.getFailureMBB();  in FinishBasicBlock()
1960       SDB->visitSPDescriptorFailure(SDB->SPDescriptor);  in FinishBasicBlock()
1961       CurDAG->setRoot(SDB->getRoot());  in FinishBasicBlock()
1962       SDB->clear();  in FinishBasicBlock()
1967     SDB->SPDescriptor.resetPerBBState();  in FinishBasicBlock()
1971   for (auto &BTB : SDB->SL->BitTestCases) {  in FinishBasicBlock()
1978       SDB->visitBitTestHeader(BTB, FuncInfo->MBB);  in FinishBasicBlock()
1979       CurDAG->setRoot(SDB->getRoot());  in FinishBasicBlock()
1980       SDB->clear();  in FinishBasicBlock()
2013       SDB->visitBitTestCase(BTB, NextMBB, UnhandledProb, BTB.Reg, BTB.Cases[j],  in FinishBasicBlock()
2016       CurDAG->setRoot(SDB->getRoot());  in FinishBasicBlock()
2017       SDB->clear();  in FinishBasicBlock()
2050   SDB->SL->BitTestCases.clear();  in FinishBasicBlock()
2055   for (unsigned i = 0, e = SDB->SL->JTCases.size(); i != e; ++i) {  in FinishBasicBlock()
2057     if (!SDB->SL->JTCases[i].first.Emitted) {  in FinishBasicBlock()
2059       FuncInfo->MBB = SDB->SL->JTCases[i].first.HeaderBB;  in FinishBasicBlock()
2062       SDB->visitJumpTableHeader(SDB->SL->JTCases[i].second,  in FinishBasicBlock()
2063                                 SDB->SL->JTCases[i].first, FuncInfo->MBB);  in FinishBasicBlock()
2064       CurDAG->setRoot(SDB->getRoot());  in FinishBasicBlock()
2065       SDB->clear();  in FinishBasicBlock()
2070     FuncInfo->MBB = SDB->SL->JTCases[i].second.MBB;  in FinishBasicBlock()
2073     SDB->visitJumpTable(SDB->SL->JTCases[i].second);  in FinishBasicBlock()
2074     CurDAG->setRoot(SDB->getRoot());  in FinishBasicBlock()
2075     SDB->clear();  in FinishBasicBlock()
2086       if (PHIBB == SDB->SL->JTCases[i].second.Default)  in FinishBasicBlock()
2088            .addMBB(SDB->SL->JTCases[i].first.HeaderBB);  in FinishBasicBlock()
2094   SDB->SL->JTCases.clear();  in FinishBasicBlock()
2098   for (unsigned i = 0, e = SDB->SL->SwitchCases.size(); i != e; ++i) {  in FinishBasicBlock()
2100     FuncInfo->MBB = SDB->SL->SwitchCases[i].ThisBB;  in FinishBasicBlock()
2105     Succs.push_back(SDB->SL->SwitchCases[i].TrueBB);  in FinishBasicBlock()
2106     if (SDB->SL->SwitchCases[i].TrueBB != SDB->SL->SwitchCases[i].FalseBB)  in FinishBasicBlock()
2107       Succs.push_back(SDB->SL->SwitchCases[i].FalseBB);  in FinishBasicBlock()
2110     SDB->visitSwitchCase(SDB->SL->SwitchCases[i], FuncInfo->MBB);  in FinishBasicBlock()
2111     CurDAG->setRoot(SDB->getRoot());  in FinishBasicBlock()
2112     SDB->clear();  in FinishBasicBlock()
2146   SDB->SL->SwitchCases.clear();  in FinishBasicBlock()