diff --git a/com.minres.rdl.parent/com.minres.rdl/src/com/minres/rdl/generator/RegfileGenerator.xtend b/com.minres.rdl.parent/com.minres.rdl/src/com/minres/rdl/generator/RegfileGenerator.xtend
index 1bd9b1f..fc7d12e 100644
--- a/com.minres.rdl.parent/com.minres.rdl/src/com/minres/rdl/generator/RegfileGenerator.xtend
+++ b/com.minres.rdl.parent/com.minres.rdl/src/com/minres/rdl/generator/RegfileGenerator.xtend
@@ -185,10 +185,6 @@ class RegfileGenerator extends RdlBaseGenerator{
         definition.instantiationsOfType(type).map[it.componentInstances.size].reduce[p1, p2|p1+p1]
     }
     
-    def instantiationsOfType(ComponentDefinition definition, ComponentDefinitionType type){
-        definition.instantiations.filter[it.definingComponent.type == type]
-    }
-    
     override generateSource() {
         ''
     }
diff --git a/com.minres.rdl.parent/com.minres.rdl/xtend-gen/com/minres/rdl/generator/RegfileGenerator.java b/com.minres.rdl.parent/com.minres.rdl/xtend-gen/com/minres/rdl/generator/RegfileGenerator.java
index dfe9f6a..dffa55e 100644
--- a/com.minres.rdl.parent/com.minres.rdl/xtend-gen/com/minres/rdl/generator/RegfileGenerator.java
+++ b/com.minres.rdl.parent/com.minres.rdl/xtend-gen/com/minres/rdl/generator/RegfileGenerator.java
@@ -546,14 +546,6 @@ public class RegfileGenerator extends RdlBaseGenerator {
     return (int) IterableExtensions.<Integer>reduce(IterableExtensions.<Instantiation, Integer>map(this.instantiationsOfType(definition, type), _function), _function_1);
   }
   
-  public Iterable<Instantiation> instantiationsOfType(final ComponentDefinition definition, final ComponentDefinitionType type) {
-    final Function1<Instantiation, Boolean> _function = (Instantiation it) -> {
-      ComponentDefinitionType _type = this.definingComponent(it).getType();
-      return Boolean.valueOf(Objects.equal(_type, type));
-    };
-    return IterableExtensions.<Instantiation>filter(definition.getInstantiations(), _function);
-  }
-  
   @Override
   public String generateSource() {
     return "";