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Refactor. 

llvm-svn: 124300
This commit is contained in:
Devang Patel 2011-01-26 18:20:04 +00:00
parent 8bfb2f8ab5
commit 1448e7c8b6
1 changed files with 30 additions and 19 deletions
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49
llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
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@ -501,6 +501,35 @@ namespace {
};
}
/// ProcessSDDbgValues - Process SDDbgValues assoicated with this node.
static void ProcessSDDbgValues(SDNode *N, SelectionDAG *DAG,
InstrEmitter &Emitter,
SmallVector<std::pair<unsigned, MachineInstr*>, 32> &Orders,
DenseMap<SDValue, unsigned> &VRBaseMap,
unsigned Order) {
if (!N->getHasDebugValue())
return;
// Opportunistically insert immediate dbg_value uses, i.e. those with source
// order number right after the N.
MachineBasicBlock *BB = Emitter.getBlock();
MachineBasicBlock::iterator InsertPos = Emitter.getInsertPos();
SmallVector<SDDbgValue*,2> &DVs = DAG->GetDbgValues(N);
for (unsigned i = 0, e = DVs.size(); i != e; ++i) {
if (DVs[i]->isInvalidated())
continue;
unsigned DVOrder = DVs[i]->getOrder();
if (!Order || DVOrder == ++Order) {
MachineInstr *DbgMI = Emitter.EmitDbgValue(DVs[i], VRBaseMap);
if (DbgMI) {
Orders.push_back(std::make_pair(DVOrder, DbgMI));
BB->insert(InsertPos, DbgMI);
}
DVs[i]->setIsInvalidated();
}
}
}
// ProcessSourceNode - Process nodes with source order numbers. These are added
// to a vector which EmitSchedule uses to determine how to insert dbg_value
// instructions in the right order.
@ -521,25 +550,7 @@ static void ProcessSourceNode(SDNode *N, SelectionDAG *DAG,
}
Orders.push_back(std::make_pair(Order, prior(Emitter.getInsertPos())));
if (!N->getHasDebugValue())
return;
// Opportunistically insert immediate dbg_value uses, i.e. those with source
// order number right after the N.
MachineBasicBlock::iterator InsertPos = Emitter.getInsertPos();
SmallVector<SDDbgValue*,2> &DVs = DAG->GetDbgValues(N);
for (unsigned i = 0, e = DVs.size(); i != e; ++i) {
if (DVs[i]->isInvalidated())
continue;
unsigned DVOrder = DVs[i]->getOrder();
if (DVOrder == ++Order) {
MachineInstr *DbgMI = Emitter.EmitDbgValue(DVs[i], VRBaseMap);
if (DbgMI) {
Orders.push_back(std::make_pair(DVOrder, DbgMI));
BB->insert(InsertPos, DbgMI);
}
DVs[i]->setIsInvalidated();
}
}
ProcessSDDbgValues(N, DAG, Emitter, Orders, VRBaseMap, Order);
}