gcc/testsuite/gcc.dg/pr64087.c

   1 /* PR rtl-optimization/64087 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O3" } */
   4
   5 int printf (const char *, ...);
   6
   7 int a[72], b, c, d, e;
   8
   9 int
  10 main ()
  11 {
  12   int h;
  13   for (b = 0; b < 72; b++)
  14     {
  15       h = 1;
  16       if (b)
  17         h >>= 1;
  18       a[b] = h;
  19     }
  20   for (; e; e++)
  21     for (c = 0; c < 1;)
  22       for (; d;)
  23         {
  24           printf ("0");
  25           int g;
  26           for (b = 0; b < 72; b++)
  27             {
  28               g = 1;
  29               if (b)
  30                 g >>= 1;
  31               a[b] = g;
  32             }
  33         }
  34   return 0;
  35 }