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/* { dg-do compile } */
/* { dg-options "-O1 -fdump-tree-dom3" } */
 
extern void abort (void);
extern int blah[];
 
foo(int index)
{
  if (blah [(unsigned int)index] != 0)
    abort ();
  if (blah [(unsigned int)index] != 0)
    abort ();
}
 
/* There should be precisely one load of blah.  If there is
   more than one, then the dominator optimizations failed.  */
/* { dg-final { scan-tree-dump-times "blah" 1 "dom3"} } */
 
/* There should be exactly one IF conditional.  */
/* { dg-final { scan-tree-dump-times "if " 1 "dom3"} } */
 
/* { dg-final { cleanup-tree-dump "dom3" } } */