tree 0b9b1b6671797d2b483717cfd0c583b89f18de8a
parent 5f79133a435ebcb20000370d56046fe01201dd80
author jeffhao <jeffhao@google.com> 1316195018 -0700
committer jeffhao <jeffhao@google.com> 1316197087 -0700

Added some utility functions for register maps.

These should be useful for the garbage collector.

Change-Id: I9503af6338031dd8726498e11035758076530f68