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

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: librt_has_fixtfdi
   3
   4 #include "int_lib.h"
   5 #include <stdio.h>
   6
   7 #if __LDBL_MANT_DIG__ == 113
   8
   9 #include "fp_test.h"
  10
  11 di_int __fixtfdi(long double a);
  12
  13 int test__fixtfdi(long double a, di_int expected)
  14 {
  15     di_int x = __fixtfdi(a);
  16     int ret = (x != expected);
  17
  18     if (ret)
  19     {
  20         printf("error in test__fixtfdi(%.20Lf) = %llX, "
  21                "expected %llX\n", a, x, expected);
  22     }
  23     return ret;
  24 }
  25
  26 char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};
  27
  28 #endif
  29
  30 int main()
  31 {
  32 #if __LDBL_MANT_DIG__ == 113
  33     if (test__fixtfdi(makeInf128(), 0x7fffffffffffffffLL))
  34         return 1;
  35     if (test__fixtfdi(0, 0x0))
  36         return 1;
  37     if (test__fixtfdi(0x1.23456789abcdefp+5L, 0x24LL))
  38         return 1;
  39     if (test__fixtfdi(0x1.23456789abcdefp-3L, 0x0LL))
  40         return 1;
  41     if (test__fixtfdi(0x1.23456789abcdef12345678p+20L, 0x123456LL))
  42         return 1;
  43     if (test__fixtfdi(0x1.23456789abcdef12345678p+40L, 0x123456789abLL))
  44         return 1;
  45     if (test__fixtfdi(0x1.23456789abcdef12345678p+60L, 0x123456789abcdef1LL))
  46         return 1;
  47     if (test__fixtfdi(0x1.23456789abcdefp+256L, 0x7fffffffffffffffLL))
  48         return 1;
  49     if (test__fixtfdi(-0x1.23456789abcdefp+20L, 0xffffffffffedcbaaLL))
  50         return 1;
  51     if (test__fixtfdi(-0x1.23456789abcdefp+40L, 0xfffffedcba987655LL))
  52         return 1;
  53     if (test__fixtfdi(-0x1.23456789abcdefp+256L, 0x8000000000000000LL))
  54         return 1;
  55
  56 #else
  57     printf("skipped\n");
  58
  59 #endif
  60     return 0;
  61 }