Merging xregs - needs to start with an empty register set.  Only registers that are live upon entry from boths paths, and which are merge-able, should end up in the output set.
Merging xregs - needs to start with an empty register set.  Only registers that are live upon entry from boths paths, and which are merge-able, should end up in the output set.
csae1152/erjang,trifork/erjang,csae1152/erjang,csae1152/erjang,trifork/erjang,trifork/erjang,trifork/erjang,trifork/erjang,trifork/erjang,csae1152/erjang,csae1152/erjang,trifork/erjang