private VarUsage analyseVariable(Variable var)
{
BasicBlockStub[] stubArray = new BasicBlockStub[BlockList.Count];
Hashtable hash = new Hashtable();
for (int i = 0; i < BlockList.Count; i++)
{
stubArray[i] = new BasicBlockStub(var, BlockList[i]);
hash.Add(BlockList[i], stubArray[i]);
}
for (int i = 0; i < BlockList.Count; i++)
{
foreach (BasicBlock block in BlockList[i].Next)
{
stubArray[i].AddNext(hash[block] as BasicBlockStub);
}
}
foreach (BasicBlockStub stub in stubArray)
{
stub.Reduce();
}
VarUsage result = new VarUsage();
foreach (BasicBlockStub stub in stubArray)
{
stub.AddToUsage(result);
}
return(result);
}
public void AddToUsage(VarUsage usage)
{
if (!isEmpty)
{
for (int i = 0; i < UsageArray.Count - 1; i++)
{
if (UsageArray[i] is StoreVar)
{
StoreVar storer = UsageArray[i] as StoreVar;
if (UsageArray[i + 1] is LoadVar)
{
usage.addUsage(storer, UsageArray[i + 1] as LoadVar);
}
}
}
if (UsageArray.Count > 0 && UsageArray[UsageArray.Count - 1] is StoreVar)
{
StoreVar storer = UsageArray[UsageArray.Count - 1] as StoreVar;
bool flag = true;
for (int i = 0; i < next.Count && flag; i++)
{
BasicBlockStub nextStub = next[i] as BasicBlockStub;
if (nextStub.UsageArray[0] is LoadVar)
{
usage.addUsage(storer, nextStub.UsageArray[0] as LoadVar);
flag = false;
}
}
}
}
}
private void addPrev(BasicBlockStub stub)
{
if (!prev.Contains(stub))
{
prev.Add(stub);
}
}
public void AddNext(BasicBlockStub stub)
{
if (!next.Contains(stub))
{
next.Add(stub);
stub.addPrev(this);
}
}
private VarUsage analyseVariable(Variable var)
{
BasicBlockStub[] stubArray = new BasicBlockStub[BlockList.Count];
Hashtable hash = new Hashtable();
for (int i = 0; i < BlockList.Count; i++)
{
stubArray[i] = new BasicBlockStub(var,BlockList[i]);
hash.Add(BlockList[i],stubArray[i]);
}
for (int i = 0; i < BlockList.Count; i++)
foreach (BasicBlock block in BlockList[i].Next)
stubArray[i].AddNext(hash[block] as BasicBlockStub);
foreach (BasicBlockStub stub in stubArray)
stub.Reduce();
VarUsage result = new VarUsage();
foreach (BasicBlockStub stub in stubArray)
stub.AddToUsage(result);
return result;
}
private void removePrev(BasicBlockStub stub)
{
prev.Remove(stub);
}
private void removeNext(BasicBlockStub stub)
{
next.Remove(stub);
}
private void addPrev(BasicBlockStub stub)
{
if (! prev.Contains(stub))
prev.Add(stub);
}
public void AddNext(BasicBlockStub stub)
{
if (! next.Contains(stub))
{
next.Add(stub);
stub.addPrev(this);
}
}
private void removeNext(BasicBlockStub stub)
{
next.Remove(stub);
}
private void removePrev(BasicBlockStub stub)
{
prev.Remove(stub);
}
