Initial work

Ryujinx.Graphics.Shader/StructuredIr/OperandInfo.cs

@@ -0,0 +1,33 @@
+using Ryujinx.Graphics.Shader.IntermediateRepresentation;
+using System;
+
+namespace Ryujinx.Graphics.Shader.StructuredIr
+{
+    static class OperandInfo
+    {
+        public static VariableType GetVarType(AstOperand operand)
+        {
+            if (operand.Type == OperandType.LocalVariable)
+            {
+                return operand.VarType;
+            }
+            else
+            {
+                return GetVarType(operand.Type);
+            }
+        }
+
+        public static VariableType GetVarType(OperandType type)
+        {
+            switch (type)
+            {
+                case OperandType.Attribute:      return VariableType.F32;
+                case OperandType.Constant:       return VariableType.S32;
+                case OperandType.ConstantBuffer: return VariableType.F32;
+                case OperandType.Undefined:      return VariableType.S32;
+            }
+
+            throw new ArgumentException($"Invalid operand type \"{type}\".");
+        }
+    }
+}