private Instruction GetInstruction(Expression exp, OpCode code)
{
Instruction inst;
if (_indexedInsts.TryGetValue(exp, out inst))
return inst;
inst = new Instruction(code);
_indexedInsts.Add(exp, inst);
_insts.Add(inst);
return inst;
}
public static Variable CreateTemp(Type type, Instruction defineInstr)
{
var var = new Variable
{
Name = "t" + (_tempVarId++),
SymType = SymbolType.ST_TEMP,
ValType = type,
DefineInstruction = defineInstr
};
return var;
}
private Variable ComputeTempVar(Expression exp, OpCode code, Variable[] sources)
{
Instruction inst;
if (_indexedInsts.TryGetValue(exp, out inst))
return inst.Destinations[0];
inst = new Instruction(code);
_indexedInsts.Add(exp, inst);
_insts.Add(inst);
foreach (var s in sources)
inst.Sources.Add(s);
var d = Variable.CreateTemp(exp.Type, inst);
inst.Destinations.Add(d);
return d;
}
public static Variable CreateLocal(string name, Type type, Instruction defineInstr)
{
var var = new Variable
{
Name = name,
SymType = SymbolType.ST_LOCAL,
ValType = type,
DefineInstruction = defineInstr
};
return var;
}
private Instruction CreateNonIndexedInstruction(OpCode code)
{
var inst = new Instruction(code);
_insts.Add(inst);
return inst;
}