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/* { dg-do compile { target powerpc*-*-* ia64-*-* i?86-*-* x86_64-*-* } } */

/* { dg-options "-Os -fselective-scheduling2 --param max-sched-extend-regions-iters=100" } */

void f (void)

{

  unsigned *a2;

  int vertex2;

  int c, x2, dx2, dy2, s2;

  long m, b;

  do

    {

      if (dx2)

        dx2 = dx2 % dy2;

        s2 = (dx2 / dy2);

    }

  while (vertex2);

  for (;;)

    {

      c = x2;

      a2 = 0;

      if (c)

        {

          m = b << (c);

          *a2 = (*a2 & ~m);

        }

      x2 += s2;

    }

}