Hello ken2 (cc: golang-dev@googlegroups.com), I'd like you to review this change.
*** Submitted as http://code.google.com/p/go/source/detail?r=128c88573425 *** 8g: fix out of register bug in byte(x) code R=ken2 CC=golang-dev http://codereview.appspot.com/223070
LGTM