/* { dg-do compile } */ /* { dg-options "-O2 -fdump-tree-pre-stats" } */unsigned foo1 (unsigned a, unsigned b){  unsigned i, j, k;  for (i = 0; i != a; i++)    {      j += 4*b;      k += 4*a;    }  return j + k;}/* We should eliminate both 4*b and 4*a from the main body of the loop *//* { dg-final { scan-tree-dump-times "Eliminated: 2" 1 "pre"} } *//* { dg-final { cleanup-tree-dump "pre" } } */