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// { dg-do compile }

// { dg-options "-O3 -fcheck-data-deps" }

double foo(const double* p0, const double* p1, const double* q0)

{

  double d;

  for (; p0 != p1; ++p0, ++q0)

    d += *p0 * *q0;

  return d;

}

struct A

{

  double x[3];

  const double* begin() const { return x; }

};

struct B

{

  A a0, a1;

  double d;

  B(const A&);

};

B::B(const A& a) : a0(a), a1(a), d(foo(a0.begin(), a0.begin()+3, a1.begin()))

{}