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// This testcase resulted in invalid code generation on x86_64 targets

// due to a bug in fold_rtx. For a "true" value, fold_rtx represented it

// as const_true_rtx in floating-point mode, if the FLOAT_STORE_FLAG_VALUE

// macro is not defined.

// { dg-do run }

// { dg-options "-O1 -fno-guess-branch-probability -fcse-follow-jumps -fgcse -frerun-cse-after-loop" }

class StatVal {

 public:

  StatVal(double ev, double va)

    : m(ev),

      v(va) {}

  StatVal(const StatVal& other)

    : m(other.m),

      v(other.v) {}

  StatVal& operator*=(const StatVal& other) {

    double A = m == 0 ? 1.0 : v / (m * m);

    double B = other.m == 0 ? 1.0 : other.v / (other.m * other.m);

    m = m * other.m;

    v = m * m * (A + B);

    return *this;

  }

  double m;

  double v;

};

extern "C" void abort (void);

const StatVal two_dot_three(2, 0.3);

int main(int argc, char **argv) {

  StatVal product3(two_dot_three);

  product3 *= two_dot_three;

  if (product3.v > 2.5)

  {

    abort();

  }

  return 0;

}