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Commit e6e13482 authored by Dan Gohman's avatar Dan Gohman
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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
parent e6aff3db
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