clang/test/SemaCXX/attr-x86-interrupt.cpp

   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;
   9   static void foo(int *a) __attribute__((interrupt)) {}
  10   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
  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}}
  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}}
  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}}
  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
  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
  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
  41 __attribute__((interrupt)) void foo7(int *a, unsigned b) {}
  42 __attribute__((interrupt)) void foo8(int *a) {}
  43 template<typename T>
  44 __attribute__((interrupt)) void foo9(T *a) {}
  45
  46 template <typename T>
  47 void bar(T *a) {
  48   foo9(a); // expected-error {{interrupt service routine cannot be called directly}}
  49 }
  50
  51 template <typename Fn>
  52 void bar1(Fn F) {
  53   F(0);
  54 }
  55 __attribute__((interrupt)) void foo(int *) {}
  56
  57 void g(void (*fp)(int *));
  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