1  /* { dg-do compile } */
       2  /* { dg-options "-O1 -fdump-tree-optimized" } */
       3  
       4  int nem1_phi (unsigned long a) { return a ? -1 : 0; }
       5  int eqm1_phi (unsigned long a) { return a ? 0 : -1; }
       6  
       7  int spaceship1 (long a) { return a > 0 ? 1 : a < 0 ? -1 : 0; }
       8  int spaceship2 (long a) { return a > 0 ? 1 : a == 0 ? 0 : -1; }
       9  
      10  /* { dg-final { scan-tree-dump-times " = -\[^\r\n\]*_\[0-9\]*;" 4 "optimized"} } */