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/* PR tree-optimization/71563 */
/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-optimized" } */

void link_error (void);

void
foo (int k)
{
  int t = 1 << ((1 / k) << 8);
  if (t != 1)
    link_error ();
}

void
bar (int k, int l)
{
  int t = l << (k << 8);
  if (t != l)
    link_error ();
}

/* { dg-final { scan-tree-dump-not "link_error" "optimized" } } */