gcc/testsuite/gcc.target/i386/pr66691.c

   1 /* PR target/66691 */
   2 /* { dg-do compile } */
   3 /* { dg-require-effective-target ia32 } */
   4 /* { dg-options "-O3 -g -mtune=generic -march=i686" } */
   5
   6 unsigned int a;
   7 int b[2], c, d, e, f, g, h, i, k[8], l, m, s, t, w;
   8 static int j;
   9
  10 void
  11 fn1 (long long p)
  12 {
  13   int t = p;
  14   c = c ^ b[c ^ (t & 1)];
  15 }
  16
  17 static void
  18 fn2 (long long p)
  19 {
  20   c = c ^ b[1 ^ (d & 1)];
  21   fn1 (p >> 1 & 1);
  22   fn1 (p >> 2);
  23 }
  24
  25 static void
  26 fn3 ()
  27 {
  28   unsigned char p;
  29   f = g = 0;
  30   for (h = 0; h < 6; h++)
  31     {
  32       for (s = 0; s < 7; s++)
  33         if (k[s+1])
  34           g = 0;
  35         else
  36           for (j = 0; j < 2; j++)
  37             ;
  38       t = j > 2 ? 0 : 1 >> j;
  39     }
  40   if (l)
  41     {
  42       short q[2];
  43       q[0] = q[1] = 0;
  44       if (m)
  45         for (i = 0; i < 2; i++)
  46           {
  47             unsigned char r = q[i];
  48             p = f ? r % f : r;
  49             e = ((p > 0) <= (q[i] ^ 1)) + a;
  50             if (k[1])
  51               for (e = 0; e != 18; ++e)
  52                 k[0] = 0;
  53           }
  54     }
  55 }
  56
  57 int
  58 main ()
  59 {
  60   fn3 ();
  61   fn2 (w);
  62   fn2 (j);
  63   return 0;
  64 }