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

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: librt_has_fixtfsi
   3 //===--------------- fixtfsi_test.c - Test __fixtfsi ----------------------===//
   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 __fixtfsi for the compiler_rt library.
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 #include <stdio.h>
  16
  17 #if __LDBL_MANT_DIG__ == 113
  18
  19 #include "fp_test.h"
  20
  21 int __fixtfsi(long double a);
  22
  23 int test__fixtfsi(long double a, int expected)
  24 {
  25     int x = __fixtfsi(a);
  26     int ret = (x != expected);
  27
  28     if (ret){
  29         printf("error in test__fixtfsi(%.20Lf) = %d, "
  30                "expected %d\n", a, x, expected);
  31     }
  32     return ret;
  33 }
  34
  35 char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};
  36
  37 #endif
  38
  39 int main()
  40 {
  41 #if __LDBL_MANT_DIG__ == 113
  42     if (test__fixtfsi(makeInf128(), 0x7fffffff))
  43         return 1;
  44     if (test__fixtfsi(0, 0x0))
  45         return 1;
  46     if (test__fixtfsi(0x1.23456789abcdefp+5, 0x24))
  47         return 1;
  48     if (test__fixtfsi(0x1.23456789abcdefp-3, 0x0))
  49         return 1;
  50     if (test__fixtfsi(0x1.23456789abcdefp+20, 0x123456))
  51         return 1;
  52     if (test__fixtfsi(0x1.23456789abcdefp+40, 0x7fffffff))
  53         return 1;
  54     if (test__fixtfsi(0x1.23456789abcdefp+256, 0x7fffffff))
  55         return 1;
  56     if (test__fixtfsi(-0x1.23456789abcdefp+20, 0xffedcbaa))
  57         return 1;
  58     if (test__fixtfsi(-0x1.23456789abcdefp+40, 0x80000000))
  59         return 1;
  60
  61 #else
  62     printf("skipped\n");
  63
  64 #endif
  65     return 0;
  66 }