Add two nodes to the call graph:
authorZhongxing Xu <xuzhongxing@gmail.com>
Thu, 23 Jul 2009 13:39:38 +0000 (13:39 +0000)
committerZhongxing Xu <xuzhongxing@gmail.com>
Thu, 23 Jul 2009 13:39:38 +0000 (13:39 +0000)
commitee5d708e555b56a760f3b18e43c1ae4661e170cb
treec6da78c377b57d991450e411909e2799efb43608
parenta598e5c9d515beaedff2412dba4f72e5be0068ba
Add two nodes to the call graph:
 - Root is the main function or 0.
 - ExternalCallingNode has edges to all external functions.

llvm-svn: 76876
clang/include/clang/Analysis/CallGraph.h
clang/lib/Analysis/CallGraph.cpp
clang/tools/wpa/clang-wpa.cpp