rjx-mirror/ARMeilleure/IntermediateRepresentation/Node.cs
gdkchan e5f78fb1d4
Replace LinkedList by IntrusiveList to avoid allocations on JIT (#931)
* Replace LinkedList by IntrusiveList to avoid allocations on JIT

* Fix wrong replacements
2020-02-17 22:30:54 +01:00

154 lines
No EOL
4.1 KiB
C#

using System;
namespace ARMeilleure.IntermediateRepresentation
{
class Node : IIntrusiveListNode<Node>
{
public Node ListPrevious { get; set; }
public Node ListNext { get; set; }
public Operand Destination
{
get
{
return _destinations.Length != 0 ? GetDestination(0) : null;
}
set
{
if (value != null)
{
SetDestinations(new Operand[] { value });
}
else
{
SetDestinations(new Operand[0]);
}
}
}
private Operand[] _destinations;
private Operand[] _sources;
public int DestinationsCount => _destinations.Length;
public int SourcesCount => _sources.Length;
public Node(Operand destination, int sourcesCount)
{
Destination = destination;
_sources = new Operand[sourcesCount];
}
public Node(Operand[] destinations, int sourcesCount)
{
SetDestinations(destinations ?? throw new ArgumentNullException(nameof(destinations)));
_sources = new Operand[sourcesCount];
}
public Operand GetDestination(int index)
{
return _destinations[index];
}
public Operand GetSource(int index)
{
return _sources[index];
}
public void SetDestination(int index, Operand destination)
{
Operand oldOp = _destinations[index];
if (oldOp != null && oldOp.Kind == OperandKind.LocalVariable)
{
oldOp.Assignments.Remove(this);
}
if (destination != null && destination.Kind == OperandKind.LocalVariable)
{
destination.Assignments.Add(this);
}
_destinations[index] = destination;
}
public void SetSource(int index, Operand source)
{
Operand oldOp = _sources[index];
if (oldOp != null && oldOp.Kind == OperandKind.LocalVariable)
{
oldOp.Uses.Remove(this);
}
if (source != null && source.Kind == OperandKind.LocalVariable)
{
source.Uses.Add(this);
}
_sources[index] = source;
}
public void SetDestinations(Operand[] destinations)
{
if (_destinations != null)
{
for (int index = 0; index < _destinations.Length; index++)
{
Operand oldOp = _destinations[index];
if (oldOp != null && oldOp.Kind == OperandKind.LocalVariable)
{
oldOp.Assignments.Remove(this);
}
}
_destinations = destinations;
}
else
{
_destinations = new Operand[destinations.Length];
}
for (int index = 0; index < destinations.Length; index++)
{
Operand newOp = destinations[index];
_destinations[index] = newOp;
if (newOp.Kind == OperandKind.LocalVariable)
{
newOp.Assignments.Add(this);
}
}
}
public void SetSources(Operand[] sources)
{
for (int index = 0; index < _sources.Length; index++)
{
Operand oldOp = _sources[index];
if (oldOp != null && oldOp.Kind == OperandKind.LocalVariable)
{
oldOp.Uses.Remove(this);
}
}
_sources = new Operand[sources.Length];
for (int index = 0; index < sources.Length; index++)
{
Operand newOp = sources[index];
_sources[index] = newOp;
if (newOp.Kind == OperandKind.LocalVariable)
{
newOp.Uses.Add(this);
}
}
}
}
}