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Improve shader BRX instruction code generation (#3759)

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* Improve shader BRX instruction code generation

* Shader cache version bump, add some comments and asserts
This commit is contained in:
gdkchan 2022-10-15 20:20:16 -03:00 • committed by GitHub
parent e43390c723
commit 2df16ded9b
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 140 additions and 24 deletions
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65
Ryujinx.Graphics.Shader/Translation/EmitterContext.cs
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@ -21,8 +21,33 @@ namespace Ryujinx.Graphics.Shader.Translation
public int OperationsCount => _operations.Count;
private struct BrxTarget
{
public readonly Operand Selector;
public readonly int ExpectedValue;
public readonly ulong NextTargetAddress;
public BrxTarget(Operand selector, int expectedValue, ulong nextTargetAddress)
{
Selector = selector;
ExpectedValue = expectedValue;
NextTargetAddress = nextTargetAddress;
}
}
private class BlockLabel
{
public readonly Operand Label;
public BrxTarget BrxTarget;
public BlockLabel(Operand label)
{
Label = label;
}
}
private readonly List<Operation> _operations;
private readonly Dictionary<ulong, Operand> _labels;
private readonly Dictionary<ulong, BlockLabel> _labels;
public EmitterContext(DecodedProgram program, ShaderConfig config, bool isNonMain)
{
@ -30,7 +55,7 @@ namespace Ryujinx.Graphics.Shader.Translation
Config = config;
IsNonMain = isNonMain;
_operations = new List<Operation>();
_labels = new Dictionary<ulong, Operand>();
_labels = new Dictionary<ulong, BlockLabel>();
EmitStart();
}
@ -158,14 +183,40 @@ namespace Ryujinx.Graphics.Shader.Translation
public Operand GetLabel(ulong address)
{
if (!_labels.TryGetValue(address, out Operand label))
{
label = Label();
return EnsureBlockLabel(address).Label;
}
_labels.Add(address, label);
public void SetBrxTarget(ulong address, Operand selector, int targetValue, ulong nextTargetAddress)
{
BlockLabel blockLabel = EnsureBlockLabel(address);
Debug.Assert(blockLabel.BrxTarget.Selector == null);
blockLabel.BrxTarget = new BrxTarget(selector, targetValue, nextTargetAddress);
}
public void EnterBlock(ulong address)
{
BlockLabel blockLabel = EnsureBlockLabel(address);
MarkLabel(blockLabel.Label);
BrxTarget brxTarget = blockLabel.BrxTarget;
if (brxTarget.Selector != null)
{
this.BranchIfFalse(GetLabel(brxTarget.NextTargetAddress), this.ICompareEqual(brxTarget.Selector, Const(brxTarget.ExpectedValue)));
}
}
private BlockLabel EnsureBlockLabel(ulong address)
{
if (!_labels.TryGetValue(address, out BlockLabel blockLabel))
{
blockLabel = new BlockLabel(Label());
_labels.Add(address, blockLabel);
}
return label;
return blockLabel;
}
public void PrepareForVertexReturn()