for (Function::const_arg_iterator I = FuncInfo.Fn->arg_begin(),
E = FuncInfo.Fn->arg_end();
I != E; ++I) {
- DenseMap<const Value *, unsigned>::iterator VI = LocalValueMap.find(I);
+ DenseMap<const Value *, unsigned>::iterator VI = LocalValueMap.find(&*I);
assert(VI != LocalValueMap.end() && "Missed an argument?");
- FuncInfo.ValueMap[I] = VI->second;
+ FuncInfo.ValueMap[&*I] = VI->second;
}
return true;
}
// Look for inline asm that clobbers the SP register.
if (isa<CallInst>(I) || isa<InvokeInst>(I)) {
- ImmutableCallSite CS(I);
+ ImmutableCallSite CS(&*I);
if (isa<InlineAsm>(CS.getCalledValue())) {
unsigned SP = TLI->getStackPointerRegisterToSaveRestore();
const TargetRegisterInfo *TRI = MF->getSubtarget().getRegisterInfo();
// Mark values used outside their block as exported, by allocating
// a virtual register for them.
- if (isUsedOutsideOfDefiningBlock(I))
- if (!isa<AllocaInst>(I) ||
- !StaticAllocaMap.count(cast<AllocaInst>(I)))
- InitializeRegForValue(I);
+ if (isUsedOutsideOfDefiningBlock(&*I))
+ if (!isa<AllocaInst>(I) || !StaticAllocaMap.count(cast<AllocaInst>(I)))
+ InitializeRegForValue(&*I);
// Collect llvm.dbg.declare information. This is done now instead of
// during the initial isel pass through the IR so that it is done
}
// Decide the preferred extend type for a value.
- PreferredExtendType[I] = getPreferredExtendForValue(I);
+ PreferredExtendType[&*I] = getPreferredExtendForValue(&*I);
}
// Create an initial MachineBasicBlock for each LLVM BasicBlock in F. This
assert(&*BB->begin() == I && "WinEHPrepare failed to demote PHIs");
}
- MachineBasicBlock *MBB = mf.CreateMachineBasicBlock(BB);
- MBBMap[BB] = MBB;
+ MachineBasicBlock *MBB = mf.CreateMachineBasicBlock(&*BB);
+ MBBMap[&*BB] = MBB;
MF->push_back(MBB);
// Transfer the address-taken flag. This is necessary because there could
SmallVector<const LandingPadInst *, 4> LPads;
for (BB = Fn->begin(); BB != EB; ++BB) {
const Instruction *FNP = BB->getFirstNonPHI();
- if (BB->isEHPad() && MBBMap.count(BB))
- MBBMap[BB]->setIsEHPad();
+ if (BB->isEHPad() && MBBMap.count(&*BB))
+ MBBMap[&*BB]->setIsEHPad();
if (const auto *LPI = dyn_cast<LandingPadInst>(FNP))
LPads.push_back(LPI);
}
for (auto NI = allnodes_end(); NI != allnodes_begin();) {
--NI;
- SDNode *N = NI;
+ SDNode *N = &*NI;
if (N->use_empty() && N != getRoot().getNode()) {
++NI;
DeleteNode(N);
DAG.AssignTopologicalOrder();
for (SelectionDAG::allnodes_iterator I = DAG.allnodes_begin(),
E = std::prev(DAG.allnodes_end()); I != std::next(E); ++I)
- LegalizeOp(SDValue(I, 0));
+ LegalizeOp(SDValue(&*I, 0));
// Finally, it's possible the root changed. Get the new root.
SDValue OldRoot = DAG.getRoot();
assert(&*AllNodes.begin() == &EntryNode);
AllNodes.remove(AllNodes.begin());
while (!AllNodes.empty())
- DeallocateNode(AllNodes.begin());
+ DeallocateNode(&AllNodes.front());
#ifndef NDEBUG
NextPersistentId = 0;
#endif
// Node Id fields for nodes At SortedPos and after will contain the
// count of outstanding operands.
for (allnodes_iterator I = allnodes_begin(),E = allnodes_end(); I != E; ) {
- SDNode *N = I++;
+ SDNode *N = &*I++;
checkForCycles(N, this);
unsigned Degree = N->getNumOperands();
if (Degree == 0) {
// A node with no uses, add it to the result array immediately.
N->setNodeId(DAGSize++);
- allnodes_iterator Q = N;
+ allnodes_iterator Q(N);
if (Q != SortedPos)
SortedPos = AllNodes.insert(SortedPos, AllNodes.remove(Q));
assert(SortedPos != AllNodes.end() && "Overran node list");
}
if (&Node == SortedPos) {
#ifndef NDEBUG
- allnodes_iterator I = N;
- SDNode *S = ++I;
+ allnodes_iterator I(N);
+ SDNode *S = &*++I;
dbgs() << "Overran sorted position:\n";
S->dumprFull(this); dbgs() << "\n";
dbgs() << "Checking if this is due to cycles\n";
if (IsSEH) {
DAG.setRoot(DAG.getNode(ISD::CATCHRET, getCurSDLoc(), MVT::Other,
getControlRoot(), DAG.getBasicBlock(NormalDestMBB),
- DAG.getBasicBlock(FuncInfo.MF->begin())));
+ DAG.getBasicBlock(&FuncInfo.MF->front())));
return;
}
}
// Create TmpBB after CurBB.
- MachineFunction::iterator BBI = CurBB;
+ MachineFunction::iterator BBI(CurBB);
MachineFunction &MF = DAG.getMachineFunction();
MachineBasicBlock *TmpBB = MF.CreateMachineBasicBlock(CurBB->getBasicBlock());
CurBB->getParent()->insert(++BBI, TmpBB);
if (FastISel)
return A->use_empty();
- const BasicBlock *Entry = A->getParent()->begin();
+ const BasicBlock &Entry = A->getParent()->front();
for (const User *U : A->users())
- if (cast<Instruction>(U)->getParent() != Entry || isa<SwitchInst>(U))
+ if (cast<Instruction>(U)->getParent() != &Entry || isa<SwitchInst>(U))
return false; // Use not in entry block.
return true;
// If this argument is unused then remember its value. It is used to generate
// debugging information.
if (I->use_empty() && NumValues) {
- SDB->setUnusedArgValue(I, InVals[i]);
+ SDB->setUnusedArgValue(&*I, InVals[i]);
// Also remember any frame index for use in FastISel.
if (FrameIndexSDNode *FI =
dyn_cast<FrameIndexSDNode>(InVals[i].getNode()))
- FuncInfo->setArgumentFrameIndex(I, FI->getIndex());
+ FuncInfo->setArgumentFrameIndex(&*I, FI->getIndex());
}
for (unsigned Val = 0; Val != NumValues; ++Val) {
// Note down frame index.
if (FrameIndexSDNode *FI =
dyn_cast<FrameIndexSDNode>(ArgValues[0].getNode()))
- FuncInfo->setArgumentFrameIndex(I, FI->getIndex());
+ FuncInfo->setArgumentFrameIndex(&*I, FI->getIndex());
SDValue Res = DAG.getMergeValues(makeArrayRef(ArgValues.data(), NumValues),
SDB->getCurSDLoc());
- SDB->setValue(I, Res);
+ SDB->setValue(&*I, Res);
if (!TM.Options.EnableFastISel && Res.getOpcode() == ISD::BUILD_PAIR) {
if (LoadSDNode *LNode =
dyn_cast<LoadSDNode>(Res.getOperand(0).getNode()))
if (FrameIndexSDNode *FI =
dyn_cast<FrameIndexSDNode>(LNode->getBasePtr().getNode()))
- FuncInfo->setArgumentFrameIndex(I, FI->getIndex());
+ FuncInfo->setArgumentFrameIndex(&*I, FI->getIndex());
}
// If this argument is live outside of the entry block, insert a copy from
// uses with vregs.
unsigned Reg = cast<RegisterSDNode>(Res.getOperand(1))->getReg();
if (TargetRegisterInfo::isVirtualRegister(Reg)) {
- FuncInfo->ValueMap[I] = Reg;
+ FuncInfo->ValueMap[&*I] = Reg;
continue;
}
}
- if (!isOnlyUsedInEntryBlock(I, TM.Options.EnableFastISel)) {
- FuncInfo->InitializeRegForValue(I);
- SDB->CopyToExportRegsIfNeeded(I);
+ if (!isOnlyUsedInEntryBlock(&*I, TM.Options.EnableFastISel)) {
+ FuncInfo->InitializeRegForValue(&*I);
+ SDB->CopyToExportRegsIfNeeded(&*I);
}
}
// If SuccBB has not been created yet, create it.
if (!SuccMBB) {
MachineFunction *MF = ParentMBB->getParent();
- MachineFunction::iterator BBI = ParentMBB;
+ MachineFunction::iterator BBI(ParentMBB);
SuccMBB = MF->CreateMachineBasicBlock(BB);
MF->insert(++BBI, SuccMBB);
}
}
MachineBasicBlock *SelectionDAGBuilder::NextBlock(MachineBasicBlock *MBB) {
- MachineFunction::iterator I = MBB;
+ MachineFunction::iterator I(MBB);
if (++I == FuncInfo.MF->end())
return nullptr;
- return I;
+ return &*I;
}
/// During lowering new call nodes can be created (such as memset, etc.).
MachineBasicBlock *DefaultMBB) {
MachineFunction *CurMF = FuncInfo.MF;
MachineBasicBlock *NextMBB = nullptr;
- MachineFunction::iterator BBI = W.MBB;
+ MachineFunction::iterator BBI(W.MBB);
if (++BBI != FuncInfo.MF->end())
- NextMBB = BBI;
+ NextMBB = &*BBI;
unsigned Size = W.LastCluster - W.FirstCluster + 1;
const ConstantInt *Pivot = PivotCluster->Low;
// New blocks will be inserted immediately after the current one.
- MachineFunction::iterator BBI = W.MBB;
+ MachineFunction::iterator BBI(W.MBB);
++BBI;
// We will branch to the LHS if Value < Pivot. If LHS is a single cluster,
for (allnodes_const_iterator I = allnodes_begin(), E = allnodes_end();
I != E; ++I) {
- const SDNode *N = I;
+ const SDNode *N = &*I;
if (!N->hasOneUse() && N != getRoot().getNode() &&
(!shouldPrintInline(*N) || N->use_empty()))
DumpNodes(N, 2, this);
///
static void SplitCriticalSideEffectEdges(Function &Fn) {
// Loop for blocks with phi nodes.
- for (Function::iterator BB = Fn.begin(), E = Fn.end(); BB != E; ++BB) {
- PHINode *PN = dyn_cast<PHINode>(BB->begin());
+ for (BasicBlock &BB : Fn) {
+ PHINode *PN = dyn_cast<PHINode>(BB.begin());
if (!PN) continue;
ReprocessBlock:
// are potentially trapping constant expressions. Constant expressions are
// the only potentially trapping value that can occur as the argument to a
// PHI.
- for (BasicBlock::iterator I = BB
->begin(); (PN = dyn_cast<PHINode>(I)); ++I)
+ for (BasicBlock::iterator I = BB
.begin(); (PN = dyn_cast<PHINode>(I)); ++I)
for (unsigned i = 0, e = PN->getNumIncomingValues(); i != e; ++i) {
ConstantExpr *CE = dyn_cast<ConstantExpr>(PN->getIncomingValue(i));
if (!CE || !CE->canTrap()) continue;
// Okay, we have to split this edge.
SplitCriticalEdge(
- Pred->getTerminator(), GetSuccessorNumber(Pred, BB),
+ Pred->getTerminator(), GetSuccessorNumber(Pred, &BB),
CriticalEdgeSplittingOptions().setMergeIdenticalEdges());
goto ReprocessBlock;
}
// If the first basic block in the function has live ins that need to be
// copied into vregs, emit the copies into the top of the block before
// emitting the code for the block.
- MachineBasicBlock *EntryMBB = MF->begin();
+ MachineBasicBlock *EntryMBB = &MF->front();
const TargetRegisterInfo &TRI = *MF->getSubtarget().getRegisterInfo();
RegInfo->EmitLiveInCopies(EntryMBB, TRI, *TII);
// graph) and preceding back toward the beginning (the entry
// node).
while (ISelPosition != CurDAG->allnodes_begin()) {
- SDNode *Node = --ISelPosition;
+ SDNode *Node = &*--ISelPosition;
// Skip dead nodes. DAGCombiner is expected to eliminate all dead nodes,
// but there are currently some corner cases that it misses. Also, this
// makes it theoretically possible to disable the DAGCombiner.
FuncInfo->VisitedBBs.insert(LLVMBB);
}
- BasicBlock::const_iterator const Begin = LLVMBB->getFirstNonPHI();
+ BasicBlock::const_iterator const Begin =
+ LLVMBB->getFirstNonPHI()->getIterator();
BasicBlock::const_iterator const End = LLVMBB->end();
BasicBlock::const_iterator BI = End;
unsigned NumFastIselRemaining = std::distance(Begin, End);
// Do FastISel on as many instructions as possible.
for (; BI != Begin; --BI) {
- const Instruction *Inst = std::prev(BI);
+ const Instruction *Inst = &*std::prev(BI);
// If we no longer require this instruction, skip it.
if (isFoldedOrDeadInstruction(Inst, FuncInfo)) {
// then see if there is a load right before the selected instructions.
// Try to fold the load if so.
const Instruction *BeforeInst = Inst;
- while (BeforeInst != Begin) {
- BeforeInst = std::prev(BasicBlock::const_iterator(BeforeInst));
+ while (BeforeInst != &*Begin) {
+ BeforeInst = &*std::prev(BasicBlock::const_iterator(BeforeInst));
if (!isFoldedOrDeadInstruction(BeforeInst, FuncInfo))
break;
}
bool HadTailCall = false;
MachineBasicBlock::iterator SavedInsertPt = FuncInfo->InsertPt;
- SelectBasicBlock(Inst, BI, HadTailCall);
+ SelectBasicBlock(Inst->getIterator(), BI, HadTailCall);
// If the call was emitted as a tail call, we're done with the block.
// We also need to delete any previously emitted instructions.
projects / oota-llvm.git / commitdiff