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using System;
using System.Collections.Generic;
using System.Runtime.CompilerServices;
namespace ARMeilleure.IntermediateRepresentation
{
class Operand
{
public OperandKind Kind { get; private set; }
public OperandType Type { get; private set; }
public ulong Value { get; private set; }
public bool Relocatable { get; private set; }
public int? PtcIndex { get; private set; }
public List<Node> Assignments { get; }
public List<Node> Uses { get; }
public Operand()
{
Assignments = new List<Node>();
Uses = new List<Node>();
}
public Operand(OperandKind kind, OperandType type = OperandType.None) : this()
{
Kind = kind;
Type = type;
}
public Operand With(
OperandKind kind,
OperandType type = OperandType.None,
ulong value = 0,
bool relocatable = false,
int? index = null)
{
Kind = kind;
Type = type;
Value = value;
Relocatable = relocatable;
PtcIndex = index;
Assignments.Clear();
Uses.Clear();
return this;
}
public Operand With(int value)
{
return With(OperandKind.Constant, OperandType.I32, (uint)value);
}
public Operand With(uint value)
{
return With(OperandKind.Constant, OperandType.I32, value);
}
public Operand With(long value, bool relocatable = false, int? index = null)
{
return With(OperandKind.Constant, OperandType.I64, (ulong)value, relocatable, index);
}
public Operand With(ulong value)
{
return With(OperandKind.Constant, OperandType.I64, value);
}
public Operand With(float value)
{
return With(OperandKind.Constant, OperandType.FP32, (ulong)BitConverter.SingleToInt32Bits(value));
}
public Operand With(double value)
{
return With(OperandKind.Constant, OperandType.FP64, (ulong)BitConverter.DoubleToInt64Bits(value));
}
public Operand With(int index, RegisterType regType, OperandType type)
{
return With(OperandKind.Register, type, (ulong)((int)regType << 24 | index));
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public Register GetRegister()
{
return new Register((int)Value & 0xffffff, (RegisterType)(Value >> 24));
}
public byte AsByte()
{
return (byte)Value;
}
public short AsInt16()
{
return (short)Value;
}
public int AsInt32()
{
return (int)Value;
}
public long AsInt64()
{
return (long)Value;
}
public float AsFloat()
{
return BitConverter.Int32BitsToSingle((int)Value);
}
public double AsDouble()
{
return BitConverter.Int64BitsToDouble((long)Value);
}
internal void NumberLocal(int number)
{
if (Kind != OperandKind.LocalVariable)
{
throw new InvalidOperationException("The operand is not a local variable.");
}
Value = (ulong)number;
}
public override int GetHashCode()
{
if (Kind == OperandKind.LocalVariable)
{
return base.GetHashCode();
}
else
{
return (int)Value ^ ((int)Kind << 16) ^ ((int)Type << 20);
}
}
}
}
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