1 // REQUIRES: x86-registered-target
2 // RUN: %clang_cc1 -triple x86_64-linux-gnu -verify=expected,enabled -emit-codegen-only %s
3 // RUN: %clang_cc1 -verify -triple x86_64-linux-gnu -emit-codegen-only -Wno-attribute-warning %s
4 
5 __attribute__((error("oh no foo"))) void foo(void);
6 
7 __attribute__((error("oh no bar"))) void bar(void);
8 
9 int x(void) {
10   return 8 % 2 == 1;
11 }
12 
13 __attribute__((warning("oh no quux"))) void quux(void);
14 
15 __attribute__((error("demangle me"))) void __compiletime_assert_455(void);
16 
17 __attribute__((error("one"), error("two"))) // expected-warning {{attribute 'error' is already applied with different arguments}}
18 void                                        // expected-note@-1 {{previous attribute is here}}
19 duplicate_errors(void);
20 
21 __attribute__((warning("one"), warning("two"))) // expected-warning {{attribute 'warning' is already applied with different arguments}}
22 void                                            // expected-note@-1 {{previous attribute is here}}
23 duplicate_warnings(void);
24 
25 void baz(void) {
26   foo(); // expected-error {{call to foo() declared with 'error' attribute: oh no foo}}
27   if (x())
28     bar(); // expected-error {{call to bar() declared with 'error' attribute: oh no bar}}
29 
30   quux();                     // enabled-warning {{call to quux() declared with 'warning' attribute: oh no quux}}
31   __compiletime_assert_455(); // expected-error {{call to __compiletime_assert_455() declared with 'error' attribute: demangle me}}
32   duplicate_errors();         // expected-error {{call to duplicate_errors() declared with 'error' attribute: two}}
33   duplicate_warnings();       // enabled-warning {{call to duplicate_warnings() declared with 'warning' attribute: two}}
34 }
35 
36 #ifdef __cplusplus
37 template <typename T>
38 __attribute__((error("demangle me, too")))
39 T
40 nocall(T t);
41 
42 struct Widget {
43   __attribute__((warning("don't call me!")))
44   operator int() { return 42; }
45 };
46 
47 void baz_cpp(void) {
48   foo(); // expected-error {{call to foo() declared with 'error' attribute: oh no foo}}
49   if (x())
50     bar(); // expected-error {{call to bar() declared with 'error' attribute: oh no bar}}
51   quux();  // enabled-warning {{call to quux() declared with 'warning' attribute: oh no quux}}
52 
53   // Test that we demangle correctly in the diagnostic for C++.
54   __compiletime_assert_455(); // expected-error {{call to __compiletime_assert_455() declared with 'error' attribute: demangle me}}
55   nocall<int>(42);            // expected-error {{call to int nocall<int>(int) declared with 'error' attribute: demangle me, too}}
56 
57   Widget W;
58   int w = W; // enabled-warning {{Widget::operator int() declared with 'warning' attribute: don't call me!}}
59 }
60 #endif
61