tree d34ed64234414b96f2bd7d0cd8521473243abf27
parent 4b9083380356e46f63b71ce073e534c56018099e
author Ken Thompson <ken@golang.org> 1249701664 -0700
committer Ken Thompson <ken@golang.org> 1249701664 -0700
golang-hg 22372f3b2281ab1d34b3ad77c975fa500938c070

more work on divide by constant.
no real change -- disabled because of bugs

R=rsc
OCL=32923
CL=32923