1 // RUN: %clang_cc1 -fsyntax-only %s 2 // Check that this doesn't crash 3 4 #define IDENTITY1(x) x 5 #define IDENTITY2(x) IDENTITY1(x) IDENTITY1(x) IDENTITY1(x) IDENTITY1(x) 6 #define IDENTITY3(x) IDENTITY2(x) IDENTITY2(x) IDENTITY2(x) IDENTITY2(x) 7 #define IDENTITY4(x) IDENTITY3(x) IDENTITY3(x) IDENTITY3(x) IDENTITY3(x) 8 #define IDENTITY5(x) IDENTITY4(x) IDENTITY4(x) IDENTITY4(x) IDENTITY4(x) 9 #define IDENTITY6(x) IDENTITY5(x) IDENTITY5(x) IDENTITY5(x) IDENTITY5(x) 10 #define IDENTITY7(x) IDENTITY6(x) IDENTITY6(x) IDENTITY6(x) IDENTITY6(x) 11 #define IDENTITY8(x) IDENTITY7(x) IDENTITY7(x) IDENTITY7(x) IDENTITY7(x) 12 #define IDENTITY9(x) IDENTITY8(x) IDENTITY8(x) IDENTITY8(x) IDENTITY8(x) 13 #define IDENTITY0(x) IDENTITY9(x) IDENTITY9(x) IDENTITY9(x) IDENTITY9(x) 14 IDENTITY0() 15