Subversion Repositories openrisc_2011-10-31

/* builtin_return_address(n) with n>0 has always been troublesome ...

   especially when the S/390 packed stack layout comes into play.  */

/* { dg-do run } */

/* { dg-options "-O3 -fno-optimize-sibling-calls -mbackchain -mpacked-stack -msoft-float" } */

void *addr1;

extern void abort (void);

void * __attribute__((noinline))

foo1 ()

{

  addr1 = __builtin_return_address (2);

}

void * __attribute__((noinline))

foo2 ()

{

  foo1 ();

}

void * __attribute__((noinline))

foo3 ()

{

  foo2 ();

}

void __attribute__((noinline))

bar ()

{

  void *addr2;

  foo3 ();

  asm volatile ("basr  %0,0\n\t" : "=d" (addr2));

  /* basr is two bytes in length.  */

  if (addr2 - addr1 != 2)

    abort ();

}

int

main ()

{

  bar();

  return 0;

}