Fast method dispatch and effective use of primitives for reified generics in managed X10

Two new techniques for improving performance of reified generics without specializing types are presented. With these techniques, the cost of method dispatch is reduced by 95% from the regular self dispatching based implementation, and the cost of returning primitive value is reduced by 15% from the regular boxing based implementation. These techniques are useful to implement reified generics in Java and other JVM languages. Copyright © 2012 ACM.