1*f4a2713aSLionel Sambuc // RUN: %clang_cc1 -std=gnu89 -fsyntax-only -verify %s 2*f4a2713aSLionel Sambuc // RUN: %clang_cc1 -fsyntax-only -verify %s 3*f4a2713aSLionel Sambuc 4*f4a2713aSLionel Sambuc #if __STDC_VERSION__ >= 199901 5*f4a2713aSLionel Sambuc #define GNU_INLINE __attribute((__gnu_inline__)) 6*f4a2713aSLionel Sambuc #else 7*f4a2713aSLionel Sambuc #define GNU_INLINE 8*f4a2713aSLionel Sambuc #endif 9*f4a2713aSLionel Sambuc 10*f4a2713aSLionel Sambuc // PR5253 11*f4a2713aSLionel Sambuc // rdar://9559708 (same extension in C99 mode) 12*f4a2713aSLionel Sambuc // GNU Extension: check that we can redefine an extern inline function f(int a)13*f4a2713aSLionel SambucGNU_INLINE extern inline int f(int a) {return a;} f(int b)14*f4a2713aSLionel Sambucint f(int b) {return b;} // expected-note{{previous definition is here}} 15*f4a2713aSLionel Sambuc // And now check that we can't redefine a normal function f(int c)16*f4a2713aSLionel Sambucint f(int c) {return c;} // expected-error{{redefinition of 'f'}} 17*f4a2713aSLionel Sambuc 18*f4a2713aSLionel Sambuc // Check that we can redefine an extern inline function as a static function g(int a)19*f4a2713aSLionel SambucGNU_INLINE extern inline int g(int a) {return a;} g(int b)20*f4a2713aSLionel Sambucstatic int g(int b) {return b;} 21*f4a2713aSLionel Sambuc 22*f4a2713aSLionel Sambuc // Check that we ensure the types of the two definitions are the same h(int a)23*f4a2713aSLionel SambucGNU_INLINE extern inline int h(int a) {return a;} // expected-note{{previous definition is here}} h(short b)24*f4a2713aSLionel Sambucint h(short b) {return b;} // expected-error{{conflicting types for 'h'}} 25