1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -fno-tree-vrp -fdump-tree-optimized-details-blocks" } */
       3  
       4  /* Testcase for PR31657.  */
       5  
       6  int f(int x, int a, int b)
       7  {
       8    int t = 0;
       9    int c = 1 << a;
      10    if (!(x & 1))
      11      t = 0;
      12    else
      13      if (x & (1 << 2))
      14        t = 3;
      15      else
      16        t = 0;
      17    return t;
      18  }
      19  /* { dg-final { scan-tree-dump "& 5" "optimized" } } */
      20  /* { dg-final { scan-tree-dump-not "Invalid sum" "optimized" } } */