gcc/testsuite/gcc.dg/pr82597.c

   1 /* PR rtl-optimization/82597 */
   2 /* { dg-do compile  }*/
   3 /* { dg-options "-O2 -funroll-loops" } */
   4
   5 int pb;
   6
   7 void
   8 ch (unsigned char np, char fc)
   9 {
  10   unsigned char *y6 = &np;
  11
  12   if (fc != 0)
  13     {
  14       unsigned char *z1 = &np;
  15
  16       for (;;)
  17         if (*y6 != 0)
  18           for (fc = 0; fc < 12; ++fc)
  19             {
  20               int hh;
  21               int tp;
  22
  23               if (fc != 0)
  24                 hh = (*z1 != 0) ? fc : 0;
  25               else
  26                 hh = pb;
  27
  28               tp = fc > 0;
  29               if (hh == tp)
  30                 *y6 = 1;
  31             }
  32     }
  33
  34   if (np != 0)
  35     y6 = (unsigned char *)&fc;
  36   if (pb != 0 && *y6 != 0)
  37     for (;;)
  38       {
  39       }
  40 }