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/* The problem in this PR was mostly finding a suitable place to insert

   the reciprocals of the function arguments.  This test case tries to

   test three possible ways of how this may go wrong.  */

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

/* { dg-do compile } */

/* The original test case.  */

double

f1 (double a, double b, double c)

{

  double y0;

  double y1;

  if (a == 0.0)

    {

      y0 = -c / b;

      return y0;

    }

  y0 = c / b;

  y1 = a / b;

  return y0 * y1;

}

/* Labels may end up in the middle of a block.  Also bad.  */

double

f2 (double a, double b, double c)

{

  double y0;

  double y1;

a_label:

another_label:

  if (a == 0.0)

    {

      y0 = -c / b;

      return y0;

    }

  y0 = c / b;

  y1 = a / b;

  return y0 * y1;

}

/* Uses must still be dominated by their defs.  */

double

f3 (double a, double b, double c)

{

  double y0;

  double y1;

  y0 = -c / b;

  if (a == 0.0)

    {

      return y0;

    }

  y0 = c / b;

  y1 = a / b;

  return y0 * y1;

}