private int? constantValue(MilocInstruction s, Register r)
{
var d = defs.GetDef(s, r.IntVal);
if (d.Count != 1)
return null;
var load = d[0] as LoadiInstruction;
if (load == null)
return null;
if (!powersOfTwoToExponent.ContainsKey(load.Immed0))
return null;
return powersOfTwoToExponent[load.Immed0];
}
public SubInstruction(
Register regDest0,Register regSource0,Register regSource1 )
: base("sub")
{
this.RegDest0 = regDest0;this.RegSource0 = regSource0;this.RegSource1 = regSource1;
}
public XoriInstruction(
Register regDest0,Register regSource0,int immed0 )
: base("xor")
{
this.RegDest0 = regDest0;this.RegSource0 = regSource0;this.Immed0 = immed0;
}
public AddInstruction(
Register regDest0,Register regSource0,Register regSource1 )
: base("add")
{
this.RegDest0 = regDest0;this.RegSource0 = regSource0;this.RegSource1 = regSource1;
}
public StoreInstruction(
Register regSource0,Register regSource1 )
: base("store")
{
this.RegSource0 = regSource0;this.RegSource1 = regSource1;
}
public OrInstruction(
Register regDest0,Register regSource0,Register regSource1 )
: base("or")
{
this.RegDest0 = regDest0;this.RegSource0 = regSource0;this.RegSource1 = regSource1;
}
public RetvalueInstruction(
Register regSource0 )
: base("retvalue")
{
this.RegSource0 = regSource0;
}
public MulInstruction(
Register regDest0,Register regSource0,Register regSource1 )
: base("mul")
{
this.RegDest0 = regDest0;this.RegSource0 = regSource0;this.RegSource1 = regSource1;
}
public LoadInstruction(
Register regDest0,Register regSource0 )
: base("load")
{
this.RegDest0 = regDest0;this.RegSource0 = regSource0;
}
public LoadiInstruction(
Register regDest0,int immed0 )
: base("loadi")
{
this.RegDest0 = regDest0;this.Immed0 = immed0;
}
public BrcondInstruction(
Register regSource0,Label label0,Label label1 )
: base("br")
{
this.RegSource0 = regSource0;this.Label0 = label0;this.Label1 = label1;
}
public AllocaInstruction(
Register regDest0 )
: base("alloca")
{
this.RegDest0 = regDest0;
}
