[cfe-dev] Can't use the Makefile in llvm/tools/clang/examples/wpa

[hunter]

Thanks. Your advice works.

Now I'm not sure how to use the command "clang-wpa".
I built an ast file test.ast and then run

clang-wpa -view-call-graph test.ast

But the progrem shows nothing. Is there anything I did wrong?--
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