clang/test/Sema/attr-used.c

   1 // RUN: %clang_cc1 -verify -fsyntax-only -Wno-private-extern %s
   2
   3 extern int l0 __attribute__((used)); // expected-warning {{'used' attribute ignored on a non-definition declaration}}
   4 __private_extern__ int l1 __attribute__((used)); // expected-warning {{'used' attribute ignored on a non-definition declaration}}
   5
   6 struct __attribute__((used)) s { // expected-warning {{'used' attribute only applies to variables with non-local storage, functions, and Objective-C methods}}
   7   int x;
   8 };
   9
  10 int a __attribute__((used));
  11
  12 static void __attribute__((used)) f0(void) {
  13 }
  14
  15 void f1(void) {
  16   static int a __attribute__((used));
  17   int b __attribute__((used)); // expected-warning {{'used' attribute only applies to variables with non-local storage, functions, and Objective-C methods}}
  18 }
  19
  20 static void __attribute__((used)) f0(void);