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/* PR middle-end/6950

   gcc 3.0.4 mistakenly set lhs.low to 0 at the beginning of the num_eq

   expansion; it should use a temporary.

/* { dg-do run } */

typedef struct cpp_num cpp_num;

struct cpp_num

{

  long high;

  long low;

  char overflow;

};

#define num_eq(num1, num2) (num1.low == num2.low && num1.high == num2.high)

static cpp_num

num_equality_op (lhs, rhs)

     cpp_num lhs, rhs;

{

  lhs.low = num_eq (lhs, rhs);

  lhs.high = 0;

  lhs.overflow = 0;

  return lhs;

}

int main()

{

  cpp_num a = { 1, 2 };

  cpp_num b = { 3, 4 };

  cpp_num result = num_equality_op (a, b);

  if (result.low)

    return 1;

  result = num_equality_op (a, a);

  if (!result.low)

    return 2;

  return 0;

}