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Extend bindless elimination to see through Phis with the same results (#5957)
* Extend bindless elimination to see through Phis with the same results * Shader cache version bump
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2 changed files with 58 additions and 2 deletions
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@ -22,7 +22,7 @@ namespace Ryujinx.Graphics.Gpu.Shader.DiskCache
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private const ushort FileFormatVersionMajor = 1;
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private const ushort FileFormatVersionMajor = 1;
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private const ushort FileFormatVersionMinor = 2;
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private const ushort FileFormatVersionMinor = 2;
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private const uint FileFormatVersionPacked = ((uint)FileFormatVersionMajor << 16) | FileFormatVersionMinor;
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private const uint FileFormatVersionPacked = ((uint)FileFormatVersionMajor << 16) | FileFormatVersionMinor;
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private const uint CodeGenVersion = 5791;
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private const uint CodeGenVersion = 5957;
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private const string SharedTocFileName = "shared.toc";
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private const string SharedTocFileName = "shared.toc";
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private const string SharedDataFileName = "shared.data";
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private const string SharedDataFileName = "shared.data";
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@ -55,7 +55,7 @@ namespace Ryujinx.Graphics.Shader.Translation.Optimizations
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continue;
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continue;
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}
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}
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if (bindlessHandle.AsgOp is not Operation handleCombineOp)
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if (!TryGetOperation(bindlessHandle.AsgOp, out Operation handleCombineOp))
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{
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{
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continue;
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continue;
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}
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}
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@ -199,9 +199,64 @@ namespace Ryujinx.Graphics.Shader.Translation.Optimizations
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}
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}
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}
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}
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private static bool TryGetOperation(INode asgOp, out Operation outOperation)
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{
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if (asgOp is PhiNode phi)
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{
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// If we have a phi, let's check if all inputs are effectively the same value.
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// If so, we can "see through" the phi and pick any of the inputs (since they are all the same).
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Operand firstSrc = phi.GetSource(0);
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for (int index = 1; index < phi.SourcesCount; index++)
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{
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if (!IsSameOperand(firstSrc, phi.GetSource(index)))
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{
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outOperation = null;
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return false;
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}
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}
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asgOp = firstSrc.AsgOp;
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}
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if (asgOp is Operation operation)
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{
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outOperation = operation;
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return true;
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}
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outOperation = null;
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return false;
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}
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private static bool IsSameOperand(Operand x, Operand y)
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{
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if (x.Type == y.Type && x.Type == OperandType.LocalVariable)
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{
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return x.AsgOp is Operation xOp &&
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y.AsgOp is Operation yOp &&
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xOp.Inst == Instruction.BitwiseOr &&
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yOp.Inst == Instruction.BitwiseOr &&
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AreBothEqualConstantBuffers(xOp.GetSource(0), yOp.GetSource(0)) &&
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AreBothEqualConstantBuffers(xOp.GetSource(1), yOp.GetSource(1));
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}
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return false;
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}
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private static bool AreBothEqualConstantBuffers(Operand x, Operand y)
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{
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return x.Type == y.Type && x.Value == y.Value && x.Type == OperandType.ConstantBuffer;
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}
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private static Operand GetSourceForMaskedHandle(Operation asgOp, uint mask)
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private static Operand GetSourceForMaskedHandle(Operation asgOp, uint mask)
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{
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{
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// Assume it was already checked that the operation is bitwise AND.
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// Assume it was already checked that the operation is bitwise AND.
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Operand src0 = asgOp.GetSource(0);
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Operand src0 = asgOp.GetSource(0);
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Operand src1 = asgOp.GetSource(1);
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Operand src1 = asgOp.GetSource(1);
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@ -210,6 +265,7 @@ namespace Ryujinx.Graphics.Shader.Translation.Optimizations
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// We can't check if the mask matches here as both operands are from a constant buffer.
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// We can't check if the mask matches here as both operands are from a constant buffer.
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// Be optimistic and assume it matches. Avoid constant buffer 1 as official drivers
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// Be optimistic and assume it matches. Avoid constant buffer 1 as official drivers
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// uses this one to store compiler constants.
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// uses this one to store compiler constants.
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return src0.GetCbufSlot() == 1 ? src1 : src0;
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return src0.GetCbufSlot() == 1 ? src1 : src0;
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}
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}
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else if (src0.Type == OperandType.ConstantBuffer && src1.Type == OperandType.Constant)
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else if (src0.Type == OperandType.ConstantBuffer && src1.Type == OperandType.Constant)
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