feat: first prototype of optimizers + alloca optimizer

include/ir/value.hpp

@@ -1,4 +1,5 @@
 #pragma once
+#include <cstdint>
 #include "prelude/string.hpp"
 
 namespace IR
@@ -104,8 +105,8 @@ namespace IR
     class Pointer : public ValueHandle
     {
     public:
-        Pointer(unsigned int id)
-            : ValueHandle(id)
+        Pointer(unsigned int id, const Type* value_typ)
+            : ValueHandle(id), m_value_typ(new Type(value_typ))
         {
             m_type = new Type{Type::Kind::Ptr};
         }
@@ -120,16 +121,19 @@ namespace IR
             return sb.view();
         }
 
+    public:
+        const Type *GetValueType() const { return m_value_typ; }
+
     private:
         Type *m_type;
+        Type *m_value_typ;
     };
 
-    // TODO: Remove void value and use void type only
     class Void : public ValueHandle
     {
     public:
-        Void(unsigned int id)
-            : ValueHandle(id)
+        Void()
+            : ValueHandle()
         {
             m_type = new Type{Type::Kind::Void};
         }