1 // RUN: %clang_cc1 -verify -fsyntax-only %s
2 
3 extern int g0 __attribute__((weak));
4 extern int g1 __attribute__((weak_import));
5 int g2 __attribute__((weak));
6 int g3 __attribute__((weak_import)); // expected-warning {{'weak_import' attribute cannot be specified on a definition}}
7 int __attribute__((weak_import)) g4(void);
8 void __attribute__((weak_import)) g5(void) {
9 }
10 
11 struct __attribute__((weak)) s0 {}; // expected-warning {{'weak' attribute only applies to variables and functions}}
12 struct __attribute__((weak_import)) s1 {}; // expected-warning {{'weak_import' attribute only applies to variables and functions}}
13 
14 static int x __attribute__((weak)); // expected-error {{weak declaration cannot have internal linkage}}
15 
16 // rdar://9538608
17 int C; // expected-note {{previous definition is here}}
18 extern int C __attribute__((weak_import)); // expected-warning {{an already-declared variable is made a weak_import declaration}}
19 
20 static int pr14946_x;
21 extern int pr14946_x  __attribute__((weak)); // expected-error {{weak declaration cannot have internal linkage}}
22 
23 static void pr14946_f();
24 void pr14946_f() __attribute__((weak)); // expected-error {{weak declaration cannot have internal linkage}}
25