Rewrite to use the reachability cloner interface.  Also, make this much more
efficient in the case where a function calls into the same graph multiple times
(ie, it either contains multiple calls to the same function, or multiple calls
to functions in the same SCC graph)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10986 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed