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/* With -ffast-math, the latice value for t changes from -0.0 to 0.0 in this

   testcase.  */

/* { dg-do compile } */

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

double test (int param)

{

  double a = 0.0, b = -1.0, t;

  int i;

  for (i = 0; i < 100; i++)

    {

      t = a * b;

      if (param)

        b = 2.0;

    }

  return t;

}