[LLVMdev] Two quick questions on call graph nodes

[Xiaolong Tang]

> Hi Xiaolong, I changed the code so it now prints "external node" instead.  The
> external node represents all functions external to the module.  So, for example,
> if a function F calls a function G, but G is only declared in the module, rather
> than being defined there, then the callgraph gets an edge from F to the
> external node (the fact that the call was to G is discarded, only the fact that
> F called something external is remembered).  I hope this helps.

Thanks, Duncan!

Best, 
Xiaolong