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

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: librt_has_floatunsitf
   3 //===--------------- floatunsitf_test.c - Test __floatunsitf --------------===//
   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 __floatunsitf 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 COMPILER_RT_ABI long double __floatunsitf(unsigned int a);
  23
  24 int test__floatunsitf(unsigned int a, uint64_t expectedHi, uint64_t expectedLo)
  25 {
  26     long double x = __floatunsitf(a);
  27     int ret = compareResultLD(x, expectedHi, expectedLo);
  28
  29     if (ret){
  30         printf("error in test__floatunsitf(%u) = %.20Lf, "
  31                "expected %.20Lf\n", a, x, fromRep128(expectedHi, expectedLo));
  32     }
  33     return ret;
  34 }
  35
  36 char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};
  37
  38 #endif
  39
  40 int main()
  41 {
  42 #if __LDBL_MANT_DIG__ == 113
  43     if (test__floatunsitf(0x7fffffff, UINT64_C(0x401dfffffffc0000), UINT64_C(0x0)))
  44         return 1;
  45     if (test__floatunsitf(0, UINT64_C(0x0), UINT64_C(0x0)))
  46         return 1;
  47     if (test__floatunsitf(0xffffffff, UINT64_C(0x401efffffffe0000), UINT64_C(0x0)))
  48         return 1;
  49     if (test__floatunsitf(0x12345678, UINT64_C(0x401b234567800000), UINT64_C(0x0)))
  50         return 1;
  51
  52 #else
  53     printf("skipped\n");
  54
  55 #endif
  56     return 0;
  57 }