ryujinx/Ryujinx.Graphics.Shader/StructuredIr/AstHelper.cs
2020-01-09 02:13:00 +01:00

73 lines
2.0 KiB
C#

using Ryujinx.Graphics.Shader.IntermediateRepresentation;
namespace Ryujinx.Graphics.Shader.StructuredIr
{
static class AstHelper
{
public static void AddUse(IAstNode node, IAstNode parent)
{
if (node is AstOperand operand && operand.Type == OperandType.LocalVariable)
{
operand.Uses.Add(parent);
}
}
public static void AddDef(IAstNode node, IAstNode parent)
{
if (node is AstOperand operand && operand.Type == OperandType.LocalVariable)
{
operand.Defs.Add(parent);
}
}
public static void RemoveUse(IAstNode node, IAstNode parent)
{
if (node is AstOperand operand && operand.Type == OperandType.LocalVariable)
{
operand.Uses.Remove(parent);
}
}
public static void RemoveDef(IAstNode node, IAstNode parent)
{
if (node is AstOperand operand && operand.Type == OperandType.LocalVariable)
{
operand.Defs.Remove(parent);
}
}
public static AstAssignment Assign(IAstNode destination, IAstNode source)
{
return new AstAssignment(destination, source);
}
public static AstOperand Const(int value)
{
return new AstOperand(OperandType.Constant, value);
}
public static AstOperand Local(VariableType type)
{
AstOperand local = new AstOperand(OperandType.LocalVariable);
local.VarType = type;
return local;
}
public static IAstNode InverseCond(IAstNode cond)
{
return new AstOperation(Instruction.LogicalNot, cond);
}
public static IAstNode Next(IAstNode node)
{
return node.LLNode.Next?.Value;
}
public static IAstNode Previous(IAstNode node)
{
return node.LLNode.Previous?.Value;
}
}
}