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Fix vote and shuffle shader instructions on AMD GPUs (#5540)

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* Move shuffle handling out of the backend to a transform pass

* Handle subgroup sizes higher than 32

* Stop using the subgroup size control extension

* Make GenerateShuffleFunction static

* Shader cache version bump
This commit is contained in:
gdkchan
2023-08-16 21:31:07 -03:00
committed by GitHub
parent 64079c034c
commit 6ed613a6e6
35 changed files with 445 additions and 265 deletions
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4
src/Ryujinx.Graphics.Shader/CodeGen/Glsl/HelperFunctions/HelperFunctionNames.cs
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@@ -5,10 +5,6 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Glsl
public static string MultiplyHighS32 = "Helper_MultiplyHighS32";
public static string MultiplyHighU32 = "Helper_MultiplyHighU32";
public static string Shuffle = "Helper_Shuffle";
public static string ShuffleDown = "Helper_ShuffleDown";
public static string ShuffleUp = "Helper_ShuffleUp";
public static string ShuffleXor = "Helper_ShuffleXor";
public static string SwizzleAdd = "Helper_SwizzleAdd";
}
}

11
src/Ryujinx.Graphics.Shader/CodeGen/Glsl/HelperFunctions/Shuffle.glsl
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@@ -1,11 +0,0 @@
float Helper_Shuffle(float x, uint index, uint mask, out bool valid)
{
uint clamp = mask & 0x1fu;
uint segMask = (mask >> 8) & 0x1fu;
uint minThreadId = $SUBGROUP_INVOCATION$ & segMask;
uint maxThreadId = minThreadId | (clamp & ~segMask);
uint srcThreadId = (index & ~segMask) | minThreadId;
valid = srcThreadId <= maxThreadId;
float v = $SUBGROUP_BROADCAST$(x, srcThreadId);
return valid ? v : x;
}

11
src/Ryujinx.Graphics.Shader/CodeGen/Glsl/HelperFunctions/ShuffleDown.glsl
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@@ -1,11 +0,0 @@
float Helper_ShuffleDown(float x, uint index, uint mask, out bool valid)
{
uint clamp = mask & 0x1fu;
uint segMask = (mask >> 8) & 0x1fu;
uint minThreadId = $SUBGROUP_INVOCATION$ & segMask;
uint maxThreadId = minThreadId | (clamp & ~segMask);
uint srcThreadId = $SUBGROUP_INVOCATION$ + index;
valid = srcThreadId <= maxThreadId;
float v = $SUBGROUP_BROADCAST$(x, srcThreadId);
return valid ? v : x;
}

9
src/Ryujinx.Graphics.Shader/CodeGen/Glsl/HelperFunctions/ShuffleUp.glsl
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@@ -1,9 +0,0 @@
float Helper_ShuffleUp(float x, uint index, uint mask, out bool valid)
{
uint segMask = (mask >> 8) & 0x1fu;
uint minThreadId = $SUBGROUP_INVOCATION$ & segMask;
uint srcThreadId = $SUBGROUP_INVOCATION$ - index;
valid = int(srcThreadId) >= int(minThreadId);
float v = $SUBGROUP_BROADCAST$(x, srcThreadId);
return valid ? v : x;
}

11
src/Ryujinx.Graphics.Shader/CodeGen/Glsl/HelperFunctions/ShuffleXor.glsl
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@@ -1,11 +0,0 @@
float Helper_ShuffleXor(float x, uint index, uint mask, out bool valid)
{
uint clamp = mask & 0x1fu;
uint segMask = (mask >> 8) & 0x1fu;
uint minThreadId = $SUBGROUP_INVOCATION$ & segMask;
uint maxThreadId = minThreadId | (clamp & ~segMask);
uint srcThreadId = $SUBGROUP_INVOCATION$ ^ index;
valid = srcThreadId <= maxThreadId;
float v = $SUBGROUP_BROADCAST$(x, srcThreadId);
return valid ? v : x;
}