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Initial work

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gdk 2019-10-13 03:02:07 -03:00 • committed by Thog
parent f617fb542a
commit 1876b346fe
518 changed files with 15170 additions and 12486 deletions
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94
Ryujinx.Graphics/Shader/IntermediateRepresentation/PhiNode.cs
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using System.Collections.Generic;
namespace Ryujinx.Graphics.Shader.IntermediateRepresentation
{
class PhiNode : INode
{
private Operand _dest;
public Operand Dest
{
get => _dest;
set => _dest = AssignDest(value);
}
private HashSet<BasicBlock> _blocks;
private class PhiSource
{
public BasicBlock Block { get; }
public Operand Operand { get; set; }
public PhiSource(BasicBlock block, Operand operand)
{
Block = block;
Operand = operand;
}
}
private List<PhiSource> _sources;
public int SourcesCount => _sources.Count;
public PhiNode(Operand dest)
{
_blocks = new HashSet<BasicBlock>();
_sources = new List<PhiSource>();
dest.AsgOp = this;
Dest = dest;
}
private Operand AssignDest(Operand dest)
{
if (dest != null && dest.Type == OperandType.LocalVariable)
{
dest.AsgOp = this;
}
return dest;
}
public void AddSource(BasicBlock block, Operand operand)
{
if (_blocks.Add(block))
{
if (operand.Type == OperandType.LocalVariable)
{
operand.UseOps.Add(this);
}
_sources.Add(new PhiSource(block, operand));
}
}
public Operand GetSource(int index)
{
return _sources[index].Operand;
}
public BasicBlock GetBlock(int index)
{
return _sources[index].Block;
}
public void SetSource(int index, Operand source)
{
Operand oldSrc = _sources[index].Operand;
if (oldSrc != null && oldSrc.Type == OperandType.LocalVariable)
{
oldSrc.UseOps.Remove(this);
}
if (source.Type == OperandType.LocalVariable)
{
source.UseOps.Add(this);
}
_sources[index].Operand = source;
}
}
}