Refactoring and optimization on CPU translation (#661)

* Refactoring and optimization on CPU translation

* Remove now unused property

* Rename ilBlock -> block (local)

* Change equality comparison on RegisterMask for consistency

Co-Authored-By: gdkchan <gab.dark.100@gmail.com>

* Add back the aggressive inlining attribute to the Synchronize method

* Implement IEquatable on the Register struct

* Fix identation

ChocolArm64/IntermediateRepresentation/Operation.cs

@@ -0,0 +1,112 @@
+using ChocolArm64.State;
+using System;
+using System.Reflection;
+using System.Reflection.Emit;
+
+namespace ChocolArm64.IntermediateRepresentation
+{
+    class Operation
+    {
+        public BasicBlock Parent { get; set; }
+
+        public OperationType Type { get; }
+
+        private object[] _arguments { get; }
+
+        private Operation(OperationType type, params object[] arguments)
+        {
+            Type       = type;
+            _arguments = arguments;
+        }
+
+        public T GetArg<T>(int index)
+        {
+            return (T)GetArg(index);
+        }
+
+        public object GetArg(int index)
+        {
+            if ((uint)index >= _arguments.Length)
+            {
+                throw new ArgumentOutOfRangeException(nameof(index));
+            }
+
+            return _arguments[index];
+        }
+
+        public static Operation Call(MethodInfo info)
+        {
+            return new Operation(OperationType.Call, info);
+        }
+
+        public static Operation CallVirtual(MethodInfo info)
+        {
+            return new Operation(OperationType.CallVirtual, info);
+        }
+
+        public static Operation IL(OpCode ilOp)
+        {
+            return new Operation(OperationType.IL, ilOp);
+        }
+
+        public static Operation ILBranch(OpCode ilOp, ILLabel target)
+        {
+            return new Operation(OperationType.ILBranch, ilOp, target);
+        }
+
+        public static Operation LoadArgument(int index)
+        {
+            return new Operation(OperationType.LoadArgument, index);
+        }
+
+        public static Operation LoadConstant(int value)
+        {
+            return new Operation(OperationType.LoadConstant, value);
+        }
+
+        public static Operation LoadConstant(long value)
+        {
+            return new Operation(OperationType.LoadConstant, value);
+        }
+
+        public static Operation LoadConstant(float value)
+        {
+            return new Operation(OperationType.LoadConstant, value);
+        }
+
+        public static Operation LoadConstant(double value)
+        {
+            return new Operation(OperationType.LoadConstant, value);
+        }
+
+        public static Operation LoadContext()
+        {
+            return new Operation(OperationType.LoadContext);
+        }
+
+        public static Operation LoadField(FieldInfo info)
+        {
+            return new Operation(OperationType.LoadField, info);
+        }
+
+        public static Operation LoadLocal(int index, RegisterType type, RegisterSize size)
+        {
+            return new Operation(OperationType.LoadLocal, index, type, size);
+        }
+
+        public static Operation MarkLabel(ILLabel label)
+        {
+            return new Operation(OperationType.MarkLabel, label);
+        }
+
+        public static Operation StoreContext()
+        {
+            return new Operation(OperationType.StoreContext);
+        }
+
+        public static Operation StoreLocal(int index, RegisterType type, RegisterSize size)
+        {
+            return new Operation(OperationType.StoreLocal, index, type, size);
+        }
+    }
+}