1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -fdump-tree-reassoc1" } */
       3  
       4  unsigned f1 (unsigned x, unsigned z)
       5  {
       6      unsigned y = x + z;
       7      y = y + x;
       8      y = y + x;
       9      y = y + x;
      10      y = y + x;
      11      y = y + x;
      12      y = y + x;
      13      return y;
      14  }
      15  
      16  /* { dg-final { scan-tree-dump-times "\\\* 7" 1 "reassoc1" } } */
      17  
      18  unsigned f2 (unsigned x, unsigned z)
      19  {
      20      unsigned y = x + z;
      21      y = y + x;
      22      y = y + x;
      23      y = y + x;
      24      y = y + z;
      25      y = y + z;
      26      y = y + z;
      27      y = y + z;
      28      return y;
      29  }
      30  
      31  /* { dg-final { scan-tree-dump-times "\\\* 5" 1 "reassoc1" } } */
      32  /* { dg-final { scan-tree-dump-times "\\\* 4" 1 "reassoc1" } } */
      33  
      34  unsigned f3 (unsigned x, unsigned z, unsigned k)
      35  {
      36      unsigned y = x + z;
      37      y = y + x;
      38      y = y + z;
      39      y = y + z;
      40      y = y + k;
      41      return y;
      42  }
      43  
      44  /* { dg-final { scan-tree-dump-times "\\\* 2" 1 "reassoc1" } } */
      45  /* { dg-final { scan-tree-dump-times "\\\* 3" 1 "reassoc1" } } */
      46  
      47  unsigned f4 (unsigned x, unsigned z, unsigned k)
      48  {
      49      unsigned y = k + x;
      50      y = y + z;
      51      y = y + z;
      52      y = y + z;
      53      y = y + z;
      54      y = y + z;
      55      y = y + z;
      56      y = y + z;
      57      y = y + z;
      58      return y;
      59  }
      60  /* { dg-final { scan-tree-dump-times "\\\* 8" 1 "reassoc1" } } */
      61  
      62  unsigned f5 (unsigned x, unsigned y, unsigned z)
      63  {
      64      return x + y + y + y + y + y \
      65        + y + z + z + z + z + z + z + z + z + z;
      66  }
      67  
      68  /* { dg-final { scan-tree-dump-times "\\\* 6" 1 "reassoc1" } } */
      69  /* { dg-final { scan-tree-dump-times "\\\* 9" 1 "reassoc1" } } */
      70