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

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: librt_has_fixtfsi
   3
   4 #include <stdio.h>
   5
   6 #if __LDBL_MANT_DIG__ == 113
   7
   8 #include "fp_test.h"
   9
  10 int __fixtfsi(long double a);
  11
  12 int test__fixtfsi(long double a, int expected)
  13 {
  14     int x = __fixtfsi(a);
  15     int ret = (x != expected);
  16
  17     if (ret){
  18         printf("error in test__fixtfsi(%.20Lf) = %d, "
  19                "expected %d\n", a, x, expected);
  20     }
  21     return ret;
  22 }
  23
  24 char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};
  25
  26 #endif
  27
  28 int main()
  29 {
  30 #if __LDBL_MANT_DIG__ == 113
  31     if (test__fixtfsi(makeInf128(), 0x7fffffff))
  32         return 1;
  33     if (test__fixtfsi(0, 0x0))
  34         return 1;
  35     if (test__fixtfsi(0x1.23456789abcdefp+5, 0x24))
  36         return 1;
  37     if (test__fixtfsi(0x1.23456789abcdefp-3, 0x0))
  38         return 1;
  39     if (test__fixtfsi(0x1.23456789abcdefp+20, 0x123456))
  40         return 1;
  41     if (test__fixtfsi(0x1.23456789abcdefp+40, 0x7fffffff))
  42         return 1;
  43     if (test__fixtfsi(0x1.23456789abcdefp+256, 0x7fffffff))
  44         return 1;
  45     if (test__fixtfsi(-0x1.23456789abcdefp+20, 0xffedcbaa))
  46         return 1;
  47     if (test__fixtfsi(-0x1.23456789abcdefp+40, 0x80000000))
  48         return 1;
  49
  50 #else
  51     printf("skipped\n");
  52
  53 #endif
  54     return 0;
  55 }