src/compiler-rt/test/builtins/Unit/trunctfsf2_test.c

   1 //===--------------- trunctfsf2_test.c - Test __trunctfsf2 ----------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is dual licensed under the MIT and the University of Illinois Open
   6 // Source Licenses. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file tests __trunctfsf2 for the compiler_rt library.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "int_lib.h"
  15 #include <stdio.h>
  16
  17 #if __LDBL_MANT_DIG__ == 113
  18
  19 #include "fp_test.h"
  20
  21 COMPILER_RT_ABI float __trunctfsf2(long double a);
  22
  23 int test__trunctfsf2(long double a, uint32_t expected)
  24 {
  25     float x = __trunctfsf2(a);
  26     int ret = compareResultF(x, expected);
  27
  28     if (ret){
  29         printf("error in test__trunctfsf2(%.20Lf) = %f, "
  30                "expected %f\n", a, x, fromRep32(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     // qNaN
  43     if (test__trunctfsf2(makeQNaN128(),
  44                          UINT32_C(0x7fc00000)))
  45         return 1;
  46     // NaN
  47     if (test__trunctfsf2(makeNaN128(UINT64_C(0x810000000000)),
  48                          UINT32_C(0x7fc08000)))
  49         return 1;
  50     // inf
  51     if (test__trunctfsf2(makeInf128(),
  52                          UINT32_C(0x7f800000)))
  53         return 1;
  54     // zero
  55     if (test__trunctfsf2(0.0L, UINT32_C(0x0)))
  56         return 1;
  57
  58     if (test__trunctfsf2(0x1.23a2abb4a2ddee355f36789abcdep+5L,
  59                          UINT32_C(0x4211d156)))
  60         return 1;
  61     if (test__trunctfsf2(0x1.e3d3c45bd3abfd98b76a54cc321fp-9L,
  62                          UINT32_C(0x3b71e9e2)))
  63         return 1;
  64     if (test__trunctfsf2(0x1.234eebb5faa678f4488693abcdefp+4534L,
  65                          UINT32_C(0x7f800000)))
  66         return 1;
  67     if (test__trunctfsf2(0x1.edcba9bb8c76a5a43dd21f334634p-435L,
  68                          UINT32_C(0x0)))
  69         return 1;
  70
  71 #else
  72     printf("skipped\n");
  73
  74 #endif
  75     return 0;
  76 }