public LocalElement GetNewVariable(Type variableType)
{
List <VariableStatus> currentList = null;
VariableStatus currentVariable;
if (!currentPool.TryGetValue(variableType, out currentList))
{
currentList = new List <VariableStatus>();
currentPool.Add(variableType, currentList);
}
if (!currentList.Where(_1 => _1.IsFree).Any())
{
currentVariable = new VariableStatus();
currentVariable.Variable = g.DeclareLocal(variableType);
currentList.Add(currentVariable);
}
else
{
currentVariable = currentPool[variableType].First(_1 => _1.IsFree);
}
currentVariable.IsFree = false;
return(currentVariable.Variable);
}
public bool AddConstant(ulong value)
{
if (Status == VariableStatus.OverDefined)
{
return(false);
}
if (constants != null)
{
if (constants.Contains(value))
{
return(false);
}
}
else
{
constants = new List <ulong>(2);
constants.Add(value);
Status = VariableStatus.SingleConstant;
return(true);
}
if (constants.Count > MAXCONSTANTS)
{
Status = VariableStatus.OverDefined;
constants = null;
return(true);
}
constants.Add(value);
Status = VariableStatus.MultipleConstants;
return(true);
}
public void MarkVariableLive(VariableReference variableReference, Terminal outputTerminal)
{
VariableStatus existingStatus;
if (_variableStatuses.TryGetValue(variableReference, out existingStatus) && existingStatus.Kind == VariableStatusKind.Consumed)
{
throw new InvalidOperationException("Trying to mark a variable live that was already marked consumed");
}
_variableStatuses[variableReference] = VariableStatus.CreateLiveStatus(outputTerminal);
}
public VariableState(Operand operand)
{
Operand = operand;
if (operand.IsVirtualRegister)
{
Status = VariableStatus.NeverDefined;
}
else if (operand.IsConstant && operand.IsInteger)
{
AddConstant(operand.ConstantUnsignedLongInteger);
}
else
{
IsOverDefined = true;
}
}
public VariableState(Operand operand)
{
Operand = operand;
if (operand.IsVirtualRegister)
{
Status = VariableStatus.NeverDefined;
}
else if (operand.IsConstant && operand.IsInteger)
{
ConstantUnsignedLongInteger = operand.ConstantUnsignedLongInteger;
IsConstant = true;
}
else
{
IsOverDefined = true;
}
}
public bool AddConstant(ulong value)
{
if (Status == VariableStatus.OverDefined)
return false;
if (constants != null)
{
if (constants.Contains(value))
return false;
}
else
{
constants = new List<ulong>(2);
constants.Add(value);
Status = VariableStatus.SingleConstant;
return true;
}
if (constants.Count > MAXCONSTANTS)
{
Status = VariableStatus.OverDefined;
constants = null;
return true;
}
constants.Add(value);
Status = VariableStatus.MultipleConstants;
return true;
}