gcc/testsuite/gcc.dg/torture/pr87280.c

   1 /* { dg-do compile } */
   2 /* { dg-additional-options "--param rpo-vn-max-loop-depth=5" } */
   3
   4 int uc;
   5
   6 void
   7 j8 (int *xv, int f3)
   8 {
   9   uc = 0;
  10   while (uc < 1)
  11     {
  12     }
  13
  14   if (*xv == 0)
  15     {
  16       int *o8 = xv;
  17
  18       if (0)
  19         {
  20 n3:
  21           *o8 = 0;
  22           while (*o8 < 1)
  23             {
  24 h5:
  25               *o8 = 0;
  26             }
  27         }
  28
  29       while (*xv < 1)
  30         if (*xv == 0)
  31           goto h5;
  32
  33 g5:
  34       ;
  35     }
  36
  37   *xv = 0;
  38   for (;;)
  39     {
  40       while (uc < 1)
  41         {
  42         }
  43
  44       while (f3 < 1)
  45         {
  46           if (*xv == 0)
  47             goto n3;
  48
  49           while (f3 < 1)
  50             while (*xv < 1)
  51               while (*xv < 1)
  52                 while (*xv < 1)
  53                   while (*xv < 1)
  54                     {
  55                     }
  56         }
  57
  58       if (*xv == 0)
  59         goto g5;
  60     }
  61 }