hg: mlvm/mlvm/hotspot: tagu: first experiment with 64-bit tagged unions

[john.r.rose at oracle.com]

Changeset: 0afdd88556bc
Author:    jrose
Date:      2011-09-27 19:02 -0700
URL:       http://hg.openjdk.java.net/mlvm/mlvm/hotspot/rev/0afdd88556bc

tagu: first experiment with 64-bit tagged unions

! series
+ tagu.patch
+ tagu.txt