test/Preprocessor/macro_fn_disable_expand.c


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// RUN: clang %s -E | grep 'bar foo (2)' &&
// RUN: clang %s -E | grep 'm(ABCD)'

#define foo(x) bar x
foo(foo) (2)


#define m(a) a(w)
#define w ABCD
m(m)   // m(ABCD)