gcc/testsuite/gcc.dg/torture/pr82129.c

   1 /* { dg-do compile } */
   2 /* { dg-additional-options "-ftree-pre" } */
   3
   4 int pj;
   5
   6 void
   7 g4 (unsigned long int *bc, unsigned long int *h5)
   8 {
   9   if (pj != 0)
  10     {
  11       int ib = 0;
  12
  13       while (bc != 0)
  14         {
  15 m6:
  16           for (pj = 0; pj < 2; ++pj)
  17             pj = 0;
  18
  19           while (pj != 0)
  20             {
  21               for (;;)
  22                 {
  23                 }
  24
  25               while (ib != 0)
  26                 {
  27                   unsigned long int tv = *bc;
  28                   unsigned long int n7;
  29
  30                   *bc = 1;
  31                   while (*bc != 0)
  32                     {
  33                     }
  34
  35 ut:
  36                   if (pj == 0)
  37                     n7 = *h5 > 0;
  38                   else
  39                     {
  40                       *h5 = tv;
  41                       n7 = *h5;
  42                     }
  43                   ib += n7;
  44                 }
  45             }
  46         }
  47
  48       goto ut;
  49     }
  50
  51   goto m6;
  52 }