Chandler Carruth dca834089a [PM] Improve the debugging and logging facilities of the CGSCC bits of ...

the new pass manager.

This adds operator<< overloads for the various bits of the
LazyCallGraph, dump methods for use from the debugger, and debug logging
using them to the CGSCC pass manager.

Having this was essential for debugging the call graph update patch, and
I've extracted what I could from that patch here to minimize the delta.

llvm-svn: 273961

2016-06-27 23:26:08 +00:00

60 KiB

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