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Author SHA1 Message Date
Chris Lattner
b61789d4dd add a DEBUG call so that -debug lists when CGSCCPM iterates. 
Fix RefreshCallGraph to use CGN->replaceCallEdge instead of hand
rolling its own loop.  replaceCallEdge properly maintains the
reference counts of the nodes, fixing a crash exposed by the
iterative callgraph stuff.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102120 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-22 20:42:33 +00:00