text: /* Check for various valid and erroneous "noreturn" cases. */
  /* { dg-do compile } */
  /* { dg-options "-O2 -Wmissing-noreturn" } */
  
  extern void exit (int);
  
  extern void foo1(void) __attribute__ ((__noreturn__));
  void
  foo1(void)
  {
  } /* { dg-warning "'noreturn' function does return" "detect falling off end of noreturn" } */
  
  extern void foo2(void) __attribute__ ((__noreturn__));
  void
  foo2(void)
  {
    exit(0);
  } /* { dg-bogus "warning:" "this function should not get any warnings" } */
  
  extern void foo3(void);
  void
  foo3(void)
  {
  } /* { dg-bogus "warning:" "this function should not get any warnings" } */
  
  extern void foo4(void);
  void
  foo4(void) /* { dg-warning "candidate for attribute 'noreturn'" "detect noreturn candidate" } */
  {
    exit(0);
  }
  
  extern void foo5(void) __attribute__ ((__noreturn__));
  void
  foo5(void)
  {
    return; /* { dg-warning "'noreturn' has a 'return' statement" "detect invalid return" } */
  }         /* { dg-warning "function does return" "detect return from noreturn" { target c } .-1 } */
  
  extern void foo6(void);
  void
  foo6(void)
  {
    return;
  } /* { dg-bogus "warning:" "this function should not get any warnings" } */
  
  extern void foo7(void);
  void
  foo7(void)
  {
    foo6();
  } /* { dg-bogus "warning:" "this function should not get any warnings" } */
  
  extern void foo8(void) __attribute__ ((__noreturn__));
  void
  foo8(void)
  {
    foo7();
  } /* { dg-warning "'noreturn' function does return" "detect return from tail call" } */
  