1  /* { dg-do compile } */ 
       2  /* { dg-options "-O2 -fdump-tree-reassoc1-details" } */
       3  int f(int a, int b)
       4  {
       5    /* MAX_EXPR <a, a> should cause it to be equivalent to a.  */
       6    int c = a>=b?a:b;
       7    int d = c>=a?c:a;
       8    return d;
       9  }
      10  /* { dg-final { scan-tree-dump-times "Equivalence:" 1 "reassoc1"} } */