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/* The return argument needs a type conversion which on some targets

   (e.g. s390) needs additional code.  So it is invalid to do tail

   call optimization here.  */

/* { dg-do compile } */

/* { dg-options "-O2" } */

extern void abort (void);

long long __attribute__((noinline))

foo ()

{

  return 3;

}

int __attribute__((noinline))

boo ()

{

  return foo ();

}

int

main ()

{

  if (boo () != 3)

    abort ();

}