llvm-project/clang/test/Preprocessor/macro_rescan2.c

// RUN: %clang_cc1 %s -E | grep 'a: 2\*f(9)'
// RUN: %clang_cc1 %s -E | grep 'b: 2\*9\*g'

#define f(a) a*g 
#define g f 
a: f(2)(9) 

#undef f
#undef g

#define f(a) a*g 
#define g(a) f(a) 

b: f(2)(9)
Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'. - This is designed to make it obvious that %clang_cc1 is a "test variable" which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it can be useful to redefine what gets run as 'clang -cc1' (for example, to set a default target). llvm-svn: 91446 2009-12-16 04:14:24 +08:00			`// RUN: %clang_cc1 %s -E \| grep 'a: 2\*f(9)'`
			`// RUN: %clang_cc1 %s -E \| grep 'b: 2\9\g'`
new testcase from c99 rationale llvm-svn: 38742 2006-07-19 16:04:22 +08:00
			`#define f(a) a*g`
			`#define g f`
			`a: f(2)(9)`

			`#undef f`
			`#undef g`

			`#define f(a) a*g`
			`#define g(a) f(a)`

			`b: f(2)(9)`