1 // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu  -fsyntax-only -verify %s
2 // RUN: %clang_cc1 -triple i386-unknown-linux-gnu  -fsyntax-only -verify %s
3 // RUN: %clang_cc1 -triple x86_64-pc-win32  -fsyntax-only -verify %s
4 // RUN: %clang_cc1 -triple i386-pc-win32  -fsyntax-only -verify %s
5 // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnux32  -fsyntax-only -verify %s
6 
7 struct a {
8   int b;
fooa9   static void foo(int *a) __attribute__((interrupt)) {}
operator newa10   void *operator new(__SIZE_TYPE__) throw() __attribute__((interrupt)) { return 0; } // expected-warning {{'interrupt' attribute only applies to non-K&R-style functions}}
11 };
12 
13 struct a test __attribute__((interrupt)); // expected-warning {{'interrupt' attribute only applies to non-K&R-style functions}}
14 
foo1(void)15 __attribute__((interrupt)) int foo1(void) { return 0; }             // expected-error-re {{{{(x86|x86-64)}} 'interrupt' attribute only applies to functions that have a 'void' return type}}
foo2(void)16 __attribute__((interrupt)) void foo2(void) {}                       // expected-error-re {{{{(x86|x86-64)}} 'interrupt' attribute only applies to functions that have only a pointer parameter optionally followed by an integer parameter}}
foo3(void * a,unsigned b,int c)17 __attribute__((interrupt)) void foo3(void *a, unsigned b, int c) {} // expected-error-re {{{{(x86|x86-64)}} 'interrupt' attribute only applies to functions that have only a pointer parameter optionally followed by an integer parameter}}
foo4(int a)18 __attribute__((interrupt)) void foo4(int a) {}                      // expected-error-re {{{{(x86|x86-64)}} 'interrupt' attribute only applies to functions that have a pointer as the first parameter}}
19 #ifdef _LP64
20 // expected-error-re@+6 {{{{(x86|x86-64)}} 'interrupt' attribute only applies to functions that have a 'unsigned long' type as the second parameter}}
21 #elif defined(__x86_64__)
22 // expected-error-re@+4 {{{{(x86|x86-64)}} 'interrupt' attribute only applies to functions that have a 'unsigned long long' type as the second parameter}}
23 #else
24 // expected-error-re@+2 {{{{(x86|x86-64)}} 'interrupt' attribute only applies to functions that have a 'unsigned int' type as the second parameter}}
25 #endif
foo5(void * a,float b)26 __attribute__((interrupt)) void foo5(void *a, float b) {}
27 #ifdef _LP64
28 // expected-error-re@+6 {{{{(x86|x86-64)}} 'interrupt' attribute only applies to functions that have a 'unsigned long' type as the second parameter}}
29 #elif defined(__x86_64__)
30 // expected-error-re@+4 {{{{(x86|x86-64)}} 'interrupt' attribute only applies to functions that have a 'unsigned long long' type as the second parameter}}
31 #else
32 // expected-error-re@+2 {{{{(x86|x86-64)}} 'interrupt' attribute only applies to functions that have a 'unsigned int' type as the second parameter}}
33 #endif
foo6(float * a,int b)34 __attribute__((interrupt)) void foo6(float *a, int b) {}
35 
36 #ifdef _LP64
37 // expected-error-re@+4 {{{{(x86|x86-64)}} 'interrupt' attribute only applies to functions that have a 'unsigned long' type as the second parameter}}
38 #elif defined(__x86_64__)
39 // expected-error-re@+2 {{{{(x86|x86-64)}} 'interrupt' attribute only applies to functions that have a 'unsigned long long' type as the second parameter}}
40 #endif
foo7(int * a,unsigned b)41 __attribute__((interrupt)) void foo7(int *a, unsigned b) {}
foo8(int * a)42 __attribute__((interrupt)) void foo8(int *a) {}
43 template<typename T>
foo9(T * a)44 __attribute__((interrupt)) void foo9(T *a) {}
45 
46 template <typename T>
bar(T * a)47 void bar(T *a) {
48   foo9(a); // expected-error {{interrupt service routine cannot be called directly}}
49 }
50 
51 template <typename Fn>
bar1(Fn F)52 void bar1(Fn F) {
53   F(0);
54 }
foo(int *)55 __attribute__((interrupt)) void foo(int *) {}
56 
57 void g(void (*fp)(int *));
main(int argc,char ** argv)58 int main(int argc, char **argv) {
59   void *ptr = (void *)&foo7;
60   g(foo8);
61   (void)ptr;
62   a::foo(ptr); // expected-error {{interrupt service routine cannot be called directly}}
63   bar1(foo);
64 #ifndef __x86_64__
65   // expected-error@+2 {{interrupt service routine cannot be called directly}}
66 #endif
67   foo7((int *)argv, argc);
68   foo8((int *)argv);       // expected-error {{interrupt service routine cannot be called directly}}
69   bar(argv); // expected-note {{in instantiation of function template specialization 'bar<char *>' requested here}}
70   return 0;
71 }
72 
73