hanchenye-llvm-project/clang/test/Preprocessor/macro_rescan.c

// RUN: %clang_cc1 -E %s | grep 'ei_1 = (17 +1);'
// RUN: %clang_cc1 -E %s | grep 'ei_2 = (M1)(17);'

#define M1(a) (a+1) 
#define M2(b) b 

int ei_1 = M2(M1)(17); /* becomes int ei_1 = (17+1); */ 
int ei_2 = (M2(M1))(17); /* becomes int ei_2 = (M1)(17); */
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 -E %s \| grep 'ei_1 = (17 +1);'`
			`// RUN: %clang_cc1 -E %s \| grep 'ei_2 = (M1)(17);'`
new testcase llvm-svn: 38741 2006-07-19 16:01:28 +08:00
			`#define M1(a) (a+1)`
			`#define M2(b) b`

			`int ei_1 = M2(M1)(17); /* becomes int ei_1 = (17+1); */`
			`int ei_2 = (M2(M1))(17); /* becomes int ei_2 = (M1)(17); */`