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struct A {

  long a;

};

static inline void foo(struct A *x)

{

  __asm__ __volatile__("" : "+m"(x->a) : "r"(x) : "memory", "cc");

}

static inline void bar(struct A *x)

{

  foo(x);

}

struct B { char buf[640]; struct A a; };

struct B b[32];

int baz(void)

{

  int i;

  struct B *j;

  for (i = 1; i < 32; i++)

    {

      j = &b[i];

      bar(&j->a);

    }

  return 0;

}