the CBU graphs, copy them instead of hacking on the CBU graphs.
Also, instead of forwarding request from ECGraphs clients to the CBU graphs
clients, service them ourselves.
Finally, remove a broken "optimization"
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17378 91177308-0d34-0410-b5e6-96231b3b80d8
of functions called at a common call site. The rewrite inlines the
resulting graphs bottom-up on the SCCs of the CBU call graph. It also
simplifies the merging of equivalence classes by exploiting the fact that
functions in non-trivial SCCs are already merged.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13645 91177308-0d34-0410-b5e6-96231b3b80d8
