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Shader: Assume the only remaining source is the right one when all others are undefined (#7331)

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* Shader: Assume the only remaining source is the right one when all other are undefined

* Shader cache version bump

* Improve comment
This commit is contained in:
gdkchan 2024-09-19 21:23:09 -03:00 committed by GitHub
parent 24ee8c39f1
commit d717aef2be
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GPG key ID: B5690EEEBB952194
2 changed files with 23 additions and 1 deletions
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2
src/Ryujinx.Graphics.Gpu/Shader/DiskCache/DiskCacheHostStorage.cs
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@ -22,7 +22,7 @@ namespace Ryujinx.Graphics.Gpu.Shader.DiskCache
private const ushort FileFormatVersionMajor = 1;
private const ushort FileFormatVersionMinor = 2;
private const uint FileFormatVersionPacked = ((uint)FileFormatVersionMajor << 16) | FileFormatVersionMinor;
private const uint CodeGenVersion = 7320;
private const uint CodeGenVersion = 7331;
private const string SharedTocFileName = "shared.toc";
private const string SharedDataFileName = "shared.data";

22
src/Ryujinx.Graphics.Shader/Translation/Optimizations/Utils.cs
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@ -138,6 +138,8 @@ namespace Ryujinx.Graphics.Shader.Translation.Optimizations
// Ensure that conditions met for that branch are also met for the current one.
// Prefer the latest sources for the phi node.
int undefCount = 0;
for (int i = phiNode.SourcesCount - 1; i >= 0; i--)
{
BasicBlock phiBlock = phiNode.GetBlock(i);
@ -159,6 +161,26 @@ namespace Ryujinx.Graphics.Shader.Translation.Optimizations
return match;
}
}
else if (phiSource.Type == OperandType.Undefined)
{
undefCount++;
}
}
// If all sources but one are undefined, we can assume that the one
// that is not undefined is the right one.
if (undefCount == phiNode.SourcesCount - 1)
{
for (int i = phiNode.SourcesCount - 1; i >= 0; i--)
{
Operand phiSource = phiNode.GetSource(i);
if (phiSource.Type != OperandType.Undefined)
{
return phiSource;
}
}
}
}