1 // RUN: %clang_cc1 -fsyntax-only -verify -fdouble-square-bracket-attributes %s
2 
3 int var __attribute__((internal_linkage));
4 int var2 __attribute__((internal_linkage,common)); // expected-error{{'common' and 'internal_linkage' attributes are not compatible}} \
5                                                    // expected-note{{conflicting attribute is here}}
6 int var3 __attribute__((common,internal_linkage)); // expected-error{{'internal_linkage' and 'common' attributes are not compatible}} \
7                                                    // expected-note{{conflicting attribute is here}}
8 
9 int var4 __attribute__((common)); // expected-error{{'common' and 'internal_linkage' attributes are not compatible}} \
10 // expected-note{{previous definition is here}}
11 int var4 __attribute__((internal_linkage)); // expected-note{{conflicting attribute is here}} \
12 // expected-error{{'internal_linkage' attribute does not appear on the first declaration of 'var4'}}
13 
14 int var5 __attribute__((internal_linkage)); // expected-error{{'internal_linkage' and 'common' attributes are not compatible}}
15 int var5 __attribute__((common)); // expected-note{{conflicting attribute is here}}
16 
f()17 __attribute__((internal_linkage)) int f() {}
18 struct __attribute__((internal_linkage)) S { // expected-warning{{'internal_linkage' attribute only applies to variables, functions, and classes}}
19 };
20 
g()21 __attribute__((internal_linkage("foo"))) int g() {} // expected-error{{'internal_linkage' attribute takes no arguments}}
22 
23 int var6 [[clang::internal_linkage]];
24 int var7 [[clang::internal_linkage]] __attribute__((common)); // expected-error{{'internal_linkage' and 'common' attributes are not compatible}} \
25                                                    // expected-note{{conflicting attribute is here}}
26 __attribute__((common)) int var8 [[clang::internal_linkage]]; // expected-error{{'internal_linkage' and 'common' attributes are not compatible}} \
27                                                    // expected-note{{conflicting attribute is here}}
28