gcc/testsuite/gcc.c-torture/execute/pr47337.c

   1 /* PR rtl-optimization/47337 */
   2
   3 static unsigned int a[256], b = 0;
   4 static char c = 0;
   5 static int d = 0, *f = &d;
   6 static long long e = 0;
   7
   8 static short
   9 foo (long long x, long long y)
  10 {
  11   return x / y;
  12 }
  13
  14 static char
  15 bar (char x, char y)
  16 {
  17   return x - y;
  18 }
  19
  20 static int
  21 baz (int x, int y)
  22 {
  23   *f = (y != (short) (y * 3));
  24   for (c = 0; c < 2; c++)
  25     {
  26     lab:
  27       if (d)
  28         {
  29           if (e)
  30             e = 1;
  31           else
  32             return x;
  33         }
  34       else
  35         {
  36           d = 1;
  37           goto lab;
  38         }
  39       f = &d;
  40     }
  41   return x;
  42 }
  43
  44 static void
  45 fnx (unsigned long long x, int y)
  46 {
  47   if (!y)
  48     {
  49       b = a[b & 1];
  50       b = a[b & 1];
  51       b = a[(b ^ (x & 1)) & 1];
  52       b = a[(b ^ (x & 1)) & 1];
  53     }
  54 }
  55
  56 char *volatile w = "2";
  57
  58 int
  59 main ()
  60 {
  61   int h = 0;
  62   unsigned int k = 0;
  63   int l[8];
  64   int i, j;
  65
  66   if (__builtin_strcmp (w, "1") == 0)
  67     h = 1;
  68
  69   for (i = 0; i < 256; i++)
  70     {
  71       for (j = 8; j > 0; j--)
  72         k = 1;
  73       a[i] = k;
  74     }
  75   for (i = 0; i < 8; i++)
  76     l[i] = 0;
  77
  78   d = bar (c, c);
  79   d = baz (c, 1 | foo (l[0], 10));
  80   fnx (d, h);
  81   fnx (e, h);
  82
  83   if (d != 0)
  84     __builtin_abort ();
  85   return 0;
  86 }