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797bbced53
the DFS stack for leaves in the call graph. As mentioned in my previous commit, this is particularly interesting for graphs which have high fan out but low connectivity resulting in many leaves. For such graphs, this can remove a large % of the DFS stack traffic even though it doesn't make the stack much smaller. It's a bit easier to formulate this for the full algorithm because that one stops completely for each SCC. For example, I was able to directly eliminate the "Recurse" boolean used to continue an outer loop from the inner loop. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207311 91177308-0d34-0410-b5e6-96231b3b80d8
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