Dan Gohman 3a5a96e045 Change ScheduleDAG's SUnitMap from DenseMap<SDNode*, vector<SUnit*> >
to DenseMap<SDNode*, SUnit*>, and adjust the way cloned SUnit nodes are
handled so that only the original node needs to be in the map.
This speeds up llc on 447.dealII.llvm.bc by about 2%.

llvm-svn: 52576
2008-06-21 15:52:51 +00:00
..
2008-04-23 23:15:23 +00:00
2008-06-16 10:14:09 +00:00
2008-06-21 07:26:53 +00:00
2008-06-20 00:47:44 +00:00