1  /* PR tree-optimization/55831 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O -fstrict-overflow -ftree-vectorize -Wno-unused-label" } */
       4  
       5  int g;
       6  short p, q;
       7  
       8  void
       9  foo (void)
      10  {
      11    short a = p, b = q, i;
      12  
      13    if (a)
      14      {
      15      label:
      16        for (i = 0; i < 8; i++)
      17  	b ^= a++;
      18  
      19        if (!b)
      20  	g = 0;
      21      }
      22  }
      23  
      24  void
      25  bar (void)
      26  {
      27    short a = p, b = q, i;
      28  
      29    if (a)
      30      {
      31      label:
      32        for (i = 0; i < 8; i++)
      33  	b ^= (a = a + 1);
      34  
      35        if (!b)
      36  	g = 0;
      37      }
      38  }
      39