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authorTSR Berry <20988865+TSRBerry@users.noreply.github.com>2023-04-08 01:22:00 +0200
committerMary <thog@protonmail.com>2023-04-27 23:51:14 +0200
commitcee712105850ac3385cd0091a923438167433f9f (patch)
tree4a5274b21d8b7f938c0d0ce18736d3f2993b11b1 /Ryujinx.Graphics.Shader/Translation/Optimizations/Simplification.cs
parentcd124bda587ef09668a971fa1cac1c3f0cfc9f21 (diff)
Move solution and projects to src
Diffstat (limited to 'Ryujinx.Graphics.Shader/Translation/Optimizations/Simplification.cs')
-rw-r--r--Ryujinx.Graphics.Shader/Translation/Optimizations/Simplification.cs147
1 files changed, 0 insertions, 147 deletions
diff --git a/Ryujinx.Graphics.Shader/Translation/Optimizations/Simplification.cs b/Ryujinx.Graphics.Shader/Translation/Optimizations/Simplification.cs
deleted file mode 100644
index 8d05f99a..00000000
--- a/Ryujinx.Graphics.Shader/Translation/Optimizations/Simplification.cs
+++ /dev/null
@@ -1,147 +0,0 @@
-using Ryujinx.Graphics.Shader.IntermediateRepresentation;
-
-using static Ryujinx.Graphics.Shader.IntermediateRepresentation.OperandHelper;
-
-namespace Ryujinx.Graphics.Shader.Translation.Optimizations
-{
- static class Simplification
- {
- private const int AllOnes = ~0;
-
- public static void RunPass(Operation operation)
- {
- switch (operation.Inst)
- {
- case Instruction.Add:
- case Instruction.BitwiseExclusiveOr:
- TryEliminateBinaryOpCommutative(operation, 0);
- break;
-
- case Instruction.BitwiseAnd:
- TryEliminateBitwiseAnd(operation);
- break;
-
- case Instruction.BitwiseOr:
- TryEliminateBitwiseOr(operation);
- break;
-
- case Instruction.ConditionalSelect:
- TryEliminateConditionalSelect(operation);
- break;
-
- case Instruction.Divide:
- TryEliminateBinaryOpY(operation, 1);
- break;
-
- case Instruction.Multiply:
- TryEliminateBinaryOpCommutative(operation, 1);
- break;
-
- case Instruction.ShiftLeft:
- case Instruction.ShiftRightS32:
- case Instruction.ShiftRightU32:
- case Instruction.Subtract:
- TryEliminateBinaryOpY(operation, 0);
- break;
- }
- }
-
- private static void TryEliminateBitwiseAnd(Operation operation)
- {
- // Try to recognize and optimize those 3 patterns (in order):
- // x & 0xFFFFFFFF == x, 0xFFFFFFFF & y == y,
- // x & 0x00000000 == 0x00000000, 0x00000000 & y == 0x00000000
- Operand x = operation.GetSource(0);
- Operand y = operation.GetSource(1);
-
- if (IsConstEqual(x, AllOnes))
- {
- operation.TurnIntoCopy(y);
- }
- else if (IsConstEqual(y, AllOnes))
- {
- operation.TurnIntoCopy(x);
- }
- else if (IsConstEqual(x, 0) || IsConstEqual(y, 0))
- {
- operation.TurnIntoCopy(Const(0));
- }
- }
-
- private static void TryEliminateBitwiseOr(Operation operation)
- {
- // Try to recognize and optimize those 3 patterns (in order):
- // x | 0x00000000 == x, 0x00000000 | y == y,
- // x | 0xFFFFFFFF == 0xFFFFFFFF, 0xFFFFFFFF | y == 0xFFFFFFFF
- Operand x = operation.GetSource(0);
- Operand y = operation.GetSource(1);
-
- if (IsConstEqual(x, 0))
- {
- operation.TurnIntoCopy(y);
- }
- else if (IsConstEqual(y, 0))
- {
- operation.TurnIntoCopy(x);
- }
- else if (IsConstEqual(x, AllOnes) || IsConstEqual(y, AllOnes))
- {
- operation.TurnIntoCopy(Const(AllOnes));
- }
- }
-
- private static void TryEliminateBinaryOpY(Operation operation, int comparand)
- {
- Operand x = operation.GetSource(0);
- Operand y = operation.GetSource(1);
-
- if (IsConstEqual(y, comparand))
- {
- operation.TurnIntoCopy(x);
- }
- }
-
- private static void TryEliminateBinaryOpCommutative(Operation operation, int comparand)
- {
- Operand x = operation.GetSource(0);
- Operand y = operation.GetSource(1);
-
- if (IsConstEqual(x, comparand))
- {
- operation.TurnIntoCopy(y);
- }
- else if (IsConstEqual(y, comparand))
- {
- operation.TurnIntoCopy(x);
- }
- }
-
- private static void TryEliminateConditionalSelect(Operation operation)
- {
- Operand cond = operation.GetSource(0);
-
- if (cond.Type != OperandType.Constant)
- {
- return;
- }
-
- // The condition is constant, we can turn it into a copy, and select
- // the source based on the condition value.
- int srcIndex = cond.Value != 0 ? 1 : 2;
-
- Operand source = operation.GetSource(srcIndex);
-
- operation.TurnIntoCopy(source);
- }
-
- private static bool IsConstEqual(Operand operand, int comparand)
- {
- if (operand.Type != OperandType.Constant)
- {
- return false;
- }
-
- return operand.Value == comparand;
- }
- }
-} \ No newline at end of file