public ControlFlowLabelMap(ILBlock method, ErrorContext error)
{
method.FixParents();
this.error = error;
foreach (ILBasicBlock bb in method.GetSelfAndChildrenRecursive <ILBasicBlock>())
{
ILLabel entry = bb.Body[0] as ILLabel;
// ILExpression br = bb.Body.ElementAtOrDefault(bb.Body.Count - 2) as ILExpression;
// ILExpression b = bb.Body.ElementAtOrDefault(bb.Body.Count - 1) as ILExpression;
// if (br != null && (br.Code == GMCode.Bt || br.Code == GMCode.Bt)) labelToBranch[br.Operand as ILLabel].Add(entry);
// if (b != null && b.Code == GMCode.B) labelToBranch[b.Operand as ILLabel].Add(entry);
// skip 1 cause we have the label entry
labelToBasicBlock[entry] = bb;
for (int i = 1; i < bb.Body.Count; i++)
{
ILNode n = bb.Body[i];
ILExpression e = n as ILExpression;
if (e == null)
{
continue;
}
foreach (var target in e.GetBranchTargets())
{
labelGlobalRefCount[target] = labelGlobalRefCount.GetOrDefault(target) + 1;
HashSet <ILLabel> labels;
if (!labelToBranch.TryGetValue(target, out labels))
{
labelToBranch.Add(target, labels = new HashSet <ILLabel>());
}
labels.Add(entry);
}
}
}
}
