1  /* { dg-do run } */
       2  /* { dg-options "-O2" }  */
       3  
       4  #include <string.h>
       5  
       6  struct table_s
       7      {
       8      void (*fun0)
       9          ( void );
      10      void (*fun1)
      11          ( void );
      12      void (*fun2)
      13          ( void );
      14      void (*fun3)
      15          ( void );
      16      void (*fun4)
      17          ( void );
      18      void (*fun5)
      19          ( void );
      20      void (*fun6)
      21          ( void );
      22      void (*fun7)
      23          ( void );
      24      } table;
      25  
      26  void callback0(){__asm("mov r0, r0 \n\t");}
      27  void callback1(){__asm("mov r0, r0 \n\t");}
      28  void callback2(){__asm("mov r0, r0 \n\t");}
      29  void callback3(){__asm("mov r0, r0 \n\t");}
      30  void callback4(){__asm("mov r0, r0 \n\t");}
      31  
      32  void test (void) {
      33      memset(&table, 0, sizeof table);
      34  
      35      asm volatile ("" : : : "r3");
      36  
      37      table.fun0 = callback0;
      38      table.fun1 = callback1;
      39      table.fun2 = callback2;
      40      table.fun3 = callback3;
      41      table.fun4 = callback4;
      42      table.fun0();
      43  }
      44  
      45  void foo (void)
      46  {
      47    __builtin_abort ();
      48  }
      49  
      50  int main (void)
      51  {
      52    unsigned long p = (unsigned long) &foo;
      53    asm volatile ("mov r3, %0" : : "r" (p));
      54    test ();
      55  
      56    return 0;
      57  }