gcc/testsuite/gcc.c-torture/execute/ieee/20000320-1.c

   1 void abort (void);
   2 void exit (int);
   3
   4 #if __INT_MAX__ != 2147483647 || (__LONG_LONG_MAX__ != 9223372036854775807ll && __LONG_MAX__ != 9223372036854775807ll)
   5 int main(void) { exit (0); }
   6 #else
   7 #if __LONG_MAX__ != 9223372036854775807ll
   8 typedef unsigned long long ull;
   9 #else
  10 typedef unsigned long ull;
  11 #endif
  12 typedef unsigned ul;
  13
  14 union fl {
  15   float f;
  16   ul l;
  17 } uf;
  18 union dl {
  19   double d;
  20   ull ll;
  21 } ud;
  22
  23 int failed = 0;
  24
  25 void c(ull d, ul f)
  26 {
  27   ud.ll = d;
  28   uf.f = (float) ud.d;
  29   if (uf.l != f)
  30     {
  31       failed++;
  32     }
  33 }
  34
  35 int main()
  36 {
  37   if (sizeof (float) != sizeof (ul)
  38       || sizeof (double) != sizeof (ull))
  39     exit (0);
  40
  41 #if (defined __arm__ || defined __thumb__) && ! (defined __ARMEB__ || defined __VFP_FP__)
  42   /* The ARM always stores FP numbers in big-wordian format,
  43      even when running in little-byteian mode.  */
  44   c(0x0000000036900000ULL, 0x00000000U);
  45   c(0x0000000136900000ULL, 0x00000001U);
  46   c(0xffffffff369fffffULL, 0x00000001U);
  47   c(0x0000000036A00000ULL, 0x00000001U);
  48   c(0xffffffff36A7ffffULL, 0x00000001U);
  49   c(0x0000000036A80000ULL, 0x00000002U);
  50   c(0xffffffff36AfffffULL, 0x00000002U);
  51   c(0x0000000036b00000ULL, 0x00000002U);
  52   c(0x0000000136b00000ULL, 0x00000002U);
  53
  54   c(0xdfffffff380fffffULL, 0x007fffffU);
  55   c(0xe0000000380fffffULL, 0x00800000U);
  56   c(0xe0000001380fffffULL, 0x00800000U);
  57   c(0xffffffff380fffffULL, 0x00800000U);
  58   c(0x0000000038100000ULL, 0x00800000U);
  59   c(0x0000000138100000ULL, 0x00800000U);
  60   c(0x1000000038100000ULL, 0x00800000U);
  61   c(0x1000000138100000ULL, 0x00800001U);
  62   c(0x2fffffff38100000ULL, 0x00800001U);
  63   c(0x3000000038100000ULL, 0x00800002U);
  64   c(0x5000000038100000ULL, 0x00800002U);
  65   c(0x5000000138100000ULL, 0x00800003U);
  66 #else
  67   c(0x3690000000000000ULL, 0x00000000U);
  68   c(0x3690000000000001ULL, 0x00000001U);
  69   c(0x369fffffffffffffULL, 0x00000001U);
  70   c(0x36A0000000000000ULL, 0x00000001U);
  71   c(0x36A7ffffffffffffULL, 0x00000001U);
  72   c(0x36A8000000000000ULL, 0x00000002U);
  73   c(0x36AfffffffffffffULL, 0x00000002U);
  74   c(0x36b0000000000000ULL, 0x00000002U);
  75   c(0x36b0000000000001ULL, 0x00000002U);
  76
  77   c(0x380fffffdfffffffULL, 0x007fffffU);
  78   c(0x380fffffe0000000ULL, 0x00800000U);
  79   c(0x380fffffe0000001ULL, 0x00800000U);
  80   c(0x380fffffffffffffULL, 0x00800000U);
  81   c(0x3810000000000000ULL, 0x00800000U);
  82   c(0x3810000000000001ULL, 0x00800000U);
  83   c(0x3810000010000000ULL, 0x00800000U);
  84   c(0x3810000010000001ULL, 0x00800001U);
  85   c(0x381000002fffffffULL, 0x00800001U);
  86   c(0x3810000030000000ULL, 0x00800002U);
  87   c(0x3810000050000000ULL, 0x00800002U);
  88   c(0x3810000050000001ULL, 0x00800003U);
  89 #endif
  90
  91   if (failed)
  92     abort ();
  93   else
  94     exit (0);
  95 }
  96 #endif