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Eliminate redundant multiplications by gl_FragCoord.w on the shader (#4578)

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* Eliminate redundant multiplications by gl_FragCoord.w on the shader

* Shader cache version bump
This commit is contained in:
gdkchan 2023-05-19 11:52:31 -03:00 • committed by GitHub
parent a40c90e7dd
commit fc26189fe1
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 105 additions and 1 deletions
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29
src/Ryujinx.Graphics.Shader/Translation/Optimizations/Utils.cs
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@ -4,6 +4,35 @@ namespace Ryujinx.Graphics.Shader.Translation.Optimizations
{
static class Utils
{
public static bool IsInputLoad(INode node)
{
return (node is Operation operation) &&
operation.Inst == Instruction.Load &&
operation.StorageKind == StorageKind.Input;
}
public static bool IsInputLoad(INode node, IoVariable ioVariable, int elemIndex)
{
if (!(node is Operation operation) ||
operation.Inst != Instruction.Load ||
operation.StorageKind != StorageKind.Input ||
operation.SourcesCount != 2)
{
return false;
}
Operand ioVariableSrc = operation.GetSource(0);
if (ioVariableSrc.Type != OperandType.Constant || (IoVariable)ioVariableSrc.Value != ioVariable)
{
return false;
}
Operand elemIndexSrc = operation.GetSource(1);
return elemIndexSrc.Type == OperandType.Constant && elemIndexSrc.Value == elemIndex;
}
private static Operation FindBranchSource(BasicBlock block)
{
foreach (BasicBlock sourceBlock in block.Predecessors)