from Hacker News

Fast subtype checking in the HotSpot JVM (2002)

by twhitmore on 12/27/22, 3:22 AM with 1 comments

• by twhitmore on 12/27/22, 3:22 AM

  Cliff Click & John Rose on the JVM's subtype check -- achieving complete subtype checks in only 3 instructions and 1 memory reference, essentially all of the time.

  Nice paper for those interested in language implementation & optimization.