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

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: librt_has_fixtfdi
   3 //===--------------- fixtfdi_test.c - Test __fixtfdi ----------------------===//
   4 //
   5 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   6 // See https://llvm.org/LICENSE.txt for license information.
   7 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   8 //
   9 //===----------------------------------------------------------------------===//
  10 //
  11 // This file tests __fixtfdi for the compiler_rt library.
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 #include "int_lib.h"
  16 #include <stdio.h>
  17
  18 #if __LDBL_MANT_DIG__ == 113
  19
  20 #include "fp_test.h"
  21
  22 di_int __fixtfdi(long double a);
  23
  24 int test__fixtfdi(long double a, di_int expected)
  25 {
  26     di_int x = __fixtfdi(a);
  27     int ret = (x != expected);
  28
  29     if (ret)
  30     {
  31         printf("error in test__fixtfdi(%.20Lf) = %llX, "
  32                "expected %llX\n", a, x, expected);
  33     }
  34     return ret;
  35 }
  36
  37 char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};
  38
  39 #endif
  40
  41 int main()
  42 {
  43 #if __LDBL_MANT_DIG__ == 113
  44     if (test__fixtfdi(makeInf128(), 0x7fffffffffffffffLL))
  45         return 1;
  46     if (test__fixtfdi(0, 0x0))
  47         return 1;
  48     if (test__fixtfdi(0x1.23456789abcdefp+5L, 0x24LL))
  49         return 1;
  50     if (test__fixtfdi(0x1.23456789abcdefp-3L, 0x0LL))
  51         return 1;
  52     if (test__fixtfdi(0x1.23456789abcdef12345678p+20L, 0x123456LL))
  53         return 1;
  54     if (test__fixtfdi(0x1.23456789abcdef12345678p+40L, 0x123456789abLL))
  55         return 1;
  56     if (test__fixtfdi(0x1.23456789abcdef12345678p+60L, 0x123456789abcdef1LL))
  57         return 1;
  58     if (test__fixtfdi(0x1.23456789abcdefp+256L, 0x7fffffffffffffffLL))
  59         return 1;
  60     if (test__fixtfdi(-0x1.23456789abcdefp+20L, 0xffffffffffedcbaaLL))
  61         return 1;
  62     if (test__fixtfdi(-0x1.23456789abcdefp+40L, 0xfffffedcba987655LL))
  63         return 1;
  64     if (test__fixtfdi(-0x1.23456789abcdefp+256L, 0x8000000000000000LL))
  65         return 1;
  66
  67 #else
  68     printf("skipped\n");
  69
  70 #endif
  71     return 0;
  72 }