compiler-rt/test/builtins/Unit/fixunstfsi_test.c

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: librt_has_fixunstfsi
   3
   4 #include <stdio.h>
   5
   6 #if __LDBL_MANT_DIG__ == 113
   7
   8 #include "fp_test.h"
   9
  10 unsigned int __fixunstfsi(long double a);
  11
  12 int test__fixunstfsi(long double a, unsigned int expected)
  13 {
  14     unsigned int x = __fixunstfsi(a);
  15     int ret = (x != expected);
  16
  17     if (ret)
  18     {
  19         printf("error in test__fixunstfsi(%.20Lf) = %u, "
  20                "expected %u\n", a, x, expected);
  21     }
  22     return ret;
  23 }
  24
  25 char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};
  26
  27 #endif
  28
  29 int main()
  30 {
  31 #if __LDBL_MANT_DIG__ == 113
  32     if (test__fixunstfsi(makeInf128(), UINT32_C(0xffffffff)))
  33         return 1;
  34     if (test__fixunstfsi(0, UINT32_C(0x0)))
  35         return 1;
  36     if (test__fixunstfsi(0x1.23456789abcdefp+5, UINT32_C(0x24)))
  37         return 1;
  38     if (test__fixunstfsi(0x1.23456789abcdefp-3, UINT32_C(0x0)))
  39         return 1;
  40     if (test__fixunstfsi(0x1.23456789abcdefp+20, UINT32_C(0x123456)))
  41         return 1;
  42     if (test__fixunstfsi(0x1.23456789abcdefp+40, UINT32_C(0xffffffff)))
  43         return 1;
  44     if (test__fixunstfsi(0x1.23456789abcdefp+256, UINT32_C(0xffffffff)))
  45         return 1;
  46     if (test__fixunstfsi(-0x1.23456789abcdefp+3, UINT32_C(0x0)))
  47         return 1;
  48
  49     if (test__fixunstfsi(0x1.p+32, 0xFFFFFFFFLL))
  50         return 1;
  51
  52 #else
  53     printf("skipped\n");
  54
  55 #endif
  56     return 0;
  57 }