gnu/dist/gcc4/gcc/testsuite/gcc.c-torture/execute/lshrdi-1.c

   1 #include <limits.h>
   2
   3 extern void abort(void);
   4 extern void exit(int);
   5
   6 #if __LONG_LONG_MAX__ == 9223372036854775807LL
   7 #define BITS 64
   8
   9 static unsigned long long const zext[64] = {
  10   0x87654321fedcba90ULL,
  11   0x43b2a190ff6e5d48ULL,
  12   0x21d950c87fb72ea4ULL,
  13   0x10eca8643fdb9752ULL,
  14   0x87654321fedcba9ULL,
  15   0x43b2a190ff6e5d4ULL,
  16   0x21d950c87fb72eaULL,
  17   0x10eca8643fdb975ULL,
  18   0x87654321fedcbaULL,
  19   0x43b2a190ff6e5dULL,
  20   0x21d950c87fb72eULL,
  21   0x10eca8643fdb97ULL,
  22   0x87654321fedcbULL,
  23   0x43b2a190ff6e5ULL,
  24   0x21d950c87fb72ULL,
  25   0x10eca8643fdb9ULL,
  26   0x87654321fedcULL,
  27   0x43b2a190ff6eULL,
  28   0x21d950c87fb7ULL,
  29   0x10eca8643fdbULL,
  30   0x87654321fedULL,
  31   0x43b2a190ff6ULL,
  32   0x21d950c87fbULL,
  33   0x10eca8643fdULL,
  34   0x87654321feULL,
  35   0x43b2a190ffULL,
  36   0x21d950c87fULL,
  37   0x10eca8643fULL,
  38   0x87654321fULL,
  39   0x43b2a190fULL,
  40   0x21d950c87ULL,
  41   0x10eca8643ULL,
  42   0x87654321ULL,
  43   0x43b2a190ULL,
  44   0x21d950c8ULL,
  45   0x10eca864ULL,
  46   0x8765432ULL,
  47   0x43b2a19ULL,
  48   0x21d950cULL,
  49   0x10eca86ULL,
  50   0x876543ULL,
  51   0x43b2a1ULL,
  52   0x21d950ULL,
  53   0x10eca8ULL,
  54   0x87654ULL,
  55   0x43b2aULL,
  56   0x21d95ULL,
  57   0x10ecaULL,
  58   0x8765ULL,
  59   0x43b2ULL,
  60   0x21d9ULL,
  61   0x10ecULL,
  62   0x876ULL,
  63   0x43bULL,
  64   0x21dULL,
  65   0x10eULL,
  66   0x87ULL,
  67   0x43ULL,
  68   0x21ULL,
  69   0x10ULL,
  70   0x8ULL,
  71   0x4ULL,
  72   0x2ULL,
  73   0x1ULL
  74 };
  75
  76 #elif __LONG_LONG_MAX__ == 2147483647LL
  77 #define BITS 32
  78
  79 static unsigned long long const zext[32] = {
  80   0x87654321ULL,
  81   0x43b2a190ULL,
  82   0x21d950c8ULL,
  83   0x10eca864ULL,
  84   0x8765432ULL,
  85   0x43b2a19ULL,
  86   0x21d950cULL,
  87   0x10eca86ULL,
  88   0x876543ULL,
  89   0x43b2a1ULL,
  90   0x21d950ULL,
  91   0x10eca8ULL,
  92   0x87654ULL,
  93   0x43b2aULL,
  94   0x21d95ULL,
  95   0x10ecaULL,
  96   0x8765ULL,
  97   0x43b2ULL,
  98   0x21d9ULL,
  99   0x10ecULL,
 100   0x876ULL,
 101   0x43bULL,
 102   0x21dULL,
 103   0x10eULL,
 104   0x87ULL,
 105   0x43ULL,
 106   0x21ULL,
 107   0x10ULL,
 108   0x8ULL,
 109   0x4ULL,
 110   0x2ULL,
 111   0x1ULL,
 112 };
 113
 114 #else
 115 #error "Update the test case."
 116 #endif
 117
 118 static unsigned long long
 119 variable_shift(unsigned long long x, int i)
 120 {
 121   return x >> i;
 122 }
 123
 124 static unsigned long long
 125 constant_shift(unsigned long long x, int i)
 126 {
 127   switch (i)
 128     {
 129     case 0: x = x >> 0; break;
 130     case 1: x = x >> 1; break;
 131     case 2: x = x >> 2; break;
 132     case 3: x = x >> 3; break;
 133     case 4: x = x >> 4; break;
 134     case 5: x = x >> 5; break;
 135     case 6: x = x >> 6; break;
 136     case 7: x = x >> 7; break;
 137     case 8: x = x >> 8; break;
 138     case 9: x = x >> 9; break;
 139     case 10: x = x >> 10; break;
 140     case 11: x = x >> 11; break;
 141     case 12: x = x >> 12; break;
 142     case 13: x = x >> 13; break;
 143     case 14: x = x >> 14; break;
 144     case 15: x = x >> 15; break;
 145     case 16: x = x >> 16; break;
 146     case 17: x = x >> 17; break;
 147     case 18: x = x >> 18; break;
 148     case 19: x = x >> 19; break;
 149     case 20: x = x >> 20; break;
 150     case 21: x = x >> 21; break;
 151     case 22: x = x >> 22; break;
 152     case 23: x = x >> 23; break;
 153     case 24: x = x >> 24; break;
 154     case 25: x = x >> 25; break;
 155     case 26: x = x >> 26; break;
 156     case 27: x = x >> 27; break;
 157     case 28: x = x >> 28; break;
 158     case 29: x = x >> 29; break;
 159     case 30: x = x >> 30; break;
 160     case 31: x = x >> 31; break;
 161 #if BITS > 32
 162     case 32: x = x >> 32; break;
 163     case 33: x = x >> 33; break;
 164     case 34: x = x >> 34; break;
 165     case 35: x = x >> 35; break;
 166     case 36: x = x >> 36; break;
 167     case 37: x = x >> 37; break;
 168     case 38: x = x >> 38; break;
 169     case 39: x = x >> 39; break;
 170     case 40: x = x >> 40; break;
 171     case 41: x = x >> 41; break;
 172     case 42: x = x >> 42; break;
 173     case 43: x = x >> 43; break;
 174     case 44: x = x >> 44; break;
 175     case 45: x = x >> 45; break;
 176     case 46: x = x >> 46; break;
 177     case 47: x = x >> 47; break;
 178     case 48: x = x >> 48; break;
 179     case 49: x = x >> 49; break;
 180     case 50: x = x >> 50; break;
 181     case 51: x = x >> 51; break;
 182     case 52: x = x >> 52; break;
 183     case 53: x = x >> 53; break;
 184     case 54: x = x >> 54; break;
 185     case 55: x = x >> 55; break;
 186     case 56: x = x >> 56; break;
 187     case 57: x = x >> 57; break;
 188     case 58: x = x >> 58; break;
 189     case 59: x = x >> 59; break;
 190     case 60: x = x >> 60; break;
 191     case 61: x = x >> 61; break;
 192     case 62: x = x >> 62; break;
 193     case 63: x = x >> 63; break;
 194 #endif
 195
 196     default:
 197       abort ();
 198     }
 199   return x;
 200 }
 201
 202 int
 203 main()
 204 {
 205   int i;
 206
 207   for (i = 0; i < BITS; ++i)
 208     {
 209       unsigned long long y = variable_shift (zext[0], i);
 210       if (y != zext[i])
 211         abort ();
 212     }
 213   for (i = 0; i < BITS; ++i)
 214     {
 215       unsigned long long y = constant_shift (zext[0], i);
 216       if (y != zext[i])
 217         abort ();
 218     }
 219
 220   exit (0);
 221 }