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Replace LinkedList by IntrusiveList to avoid allocations on JIT (#931)

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* Replace LinkedList by IntrusiveList to avoid allocations on JIT

* Fix wrong replacements
This commit is contained in:
gdkchan 2020-02-17 18:30:54 -03:00 • committed by GitHub
parent e9a37ca6a8
commit e5f78fb1d4
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GPG key ID: 4AEE18F83AFDEB23
18 changed files with 365 additions and 198 deletions
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33
ARMeilleure/IntermediateRepresentation/Node.cs
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@ -1,10 +1,12 @@
using System;
using System.Collections.Generic;
namespace ARMeilleure.IntermediateRepresentation
{
class Node
class Node : IIntrusiveListNode<Node>
{
public Node ListPrevious { get; set; }
public Node ListNext { get; set; }
public Operand Destination
{
get
@ -27,9 +29,6 @@ namespace ARMeilleure.IntermediateRepresentation
private Operand[] _destinations;
private Operand[] _sources;
private LinkedListNode<Node>[] _asgUseNodes;
private LinkedListNode<Node>[] _srcUseNodes;
public int DestinationsCount => _destinations.Length;
public int SourcesCount => _sources.Length;
@ -38,8 +37,6 @@ namespace ARMeilleure.IntermediateRepresentation
Destination = destination;
_sources = new Operand[sourcesCount];
_srcUseNodes = new LinkedListNode<Node>[sourcesCount];
}
public Node(Operand[] destinations, int sourcesCount)
@ -47,8 +44,6 @@ namespace ARMeilleure.IntermediateRepresentation
SetDestinations(destinations ?? throw new ArgumentNullException(nameof(destinations)));
_sources = new Operand[sourcesCount];
_srcUseNodes = new LinkedListNode<Node>[sourcesCount];
}
public Operand GetDestination(int index)
@ -67,12 +62,12 @@ namespace ARMeilleure.IntermediateRepresentation
if (oldOp != null && oldOp.Kind == OperandKind.LocalVariable)
{
oldOp.Assignments.Remove(_asgUseNodes[index]);
oldOp.Assignments.Remove(this);
}
if (destination != null && destination.Kind == OperandKind.LocalVariable)
{
_asgUseNodes[index] = destination.Assignments.AddLast(this);
destination.Assignments.Add(this);
}
_destinations[index] = destination;
@ -84,12 +79,12 @@ namespace ARMeilleure.IntermediateRepresentation
if (oldOp != null && oldOp.Kind == OperandKind.LocalVariable)
{
oldOp.Uses.Remove(_srcUseNodes[index]);
oldOp.Uses.Remove(this);
}
if (source != null && source.Kind == OperandKind.LocalVariable)
{
_srcUseNodes[index] = source.Uses.AddLast(this);
source.Uses.Add(this);
}
_sources[index] = source;
@ -105,7 +100,7 @@ namespace ARMeilleure.IntermediateRepresentation
if (oldOp != null && oldOp.Kind == OperandKind.LocalVariable)
{
oldOp.Assignments.Remove(_asgUseNodes[index]);
oldOp.Assignments.Remove(this);
}
}
@ -116,8 +111,6 @@ namespace ARMeilleure.IntermediateRepresentation
_destinations = new Operand[destinations.Length];
}
_asgUseNodes = new LinkedListNode<Node>[destinations.Length];
for (int index = 0; index < destinations.Length; index++)
{
Operand newOp = destinations[index];
@ -126,7 +119,7 @@ namespace ARMeilleure.IntermediateRepresentation
if (newOp.Kind == OperandKind.LocalVariable)
{
_asgUseNodes[index] = newOp.Assignments.AddLast(this);
newOp.Assignments.Add(this);
}
}
}
@ -139,14 +132,12 @@ namespace ARMeilleure.IntermediateRepresentation
if (oldOp != null && oldOp.Kind == OperandKind.LocalVariable)
{
oldOp.Uses.Remove(_srcUseNodes[index]);
oldOp.Uses.Remove(this);
}
}
_sources = new Operand[sources.Length];
_srcUseNodes = new LinkedListNode<Node>[sources.Length];
for (int index = 0; index < sources.Length; index++)
{
Operand newOp = sources[index];
@ -155,7 +146,7 @@ namespace ARMeilleure.IntermediateRepresentation
if (newOp.Kind == OperandKind.LocalVariable)
{
_srcUseNodes[index] = newOp.Uses.AddLast(this);
newOp.Uses.Add(this);
}
}
}