gcc/testsuite/gcc.dg/pr79405.c

   1 /* PR rtl-optimization/79405 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2" } */
   4
   5 char cz;
   6 long long int xx, u2;
   7
   8 void
   9 qv (int js, int wl)
  10 {
  11   if (js != 0)
  12     {
  13       short int sc;
  14       int *at = (int *)&sc;
  15       long long int gx = 0;
  16
  17       for (;;)
  18         {
  19           *at = 0;
  20           js /= sc;
  21
  22           for (wl = 0; wl < 2; ++wl)
  23             {
  24               xx = gx;
  25               u2 %= xx > 0;
  26               cz /= u2;
  27
  28  fa:
  29               if (cz != u2)
  30                 {
  31                   gx |= js;
  32                   cz = gx / js;
  33                 }
  34             }
  35         }
  36
  37  yq:
  38       wl /= 0x80000000;
  39       u2 = wl;
  40       u2 |= (wl != 0) | (wl != 0 && gx != 0);
  41       js = u2;
  42       goto fa;
  43     }
  44   goto yq;
  45 }