Home | History | Annotate | Download | only in Unit 
      1 //===--------------- extendhfsf2_test.c - Test __extendhfsf2 --------------===//
      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 __extendhfsf2 for the compiler_rt library.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 #include <stdio.h>
     15 
     16 #include "fp_test.h"
     17 
     18 float __extendhfsf2(uint16_t a);
     19 
     20 int test__extendhfsf2(uint16_t a, float expected)
     21 {
     22     float x = __extendhfsf2(a);
     23     int ret = compareResultH(x, expected);
     24 
     25     if (ret){
     26         printf("error in test__extendhfsf2(%#.4x) = %f, "
     27                "expected %f\n", a, x, expected);
     28     }
     29     return ret;
     30 }
     31 
     32 char assumption_1[sizeof(__fp16) * CHAR_BIT == 16] = {0};
     33 
     34 int main()
     35 {
     36     // qNaN
     37     if (test__extendhfsf2(UINT16_C(0x7e00),
     38                           makeQNaN32()))
     39         return 1;
     40     // NaN
     41     if (test__extendhfsf2(UINT16_C(0x7e00),
     42                           makeNaN32(UINT32_C(0x8000))))
     43         return 1;
     44     // inf
     45     if (test__extendhfsf2(UINT16_C(0x7c00),
     46                           makeInf32()))
     47         return 1;
     48     if (test__extendhfsf2(UINT16_C(0xfc00),
     49                           -makeInf32()))
     50         return 1;
     51     // zero
     52     if (test__extendhfsf2(UINT16_C(0x0),
     53                           0.0f))
     54         return 1;
     55     if (test__extendhfsf2(UINT16_C(0x8000),
     56                           -0.0f))
     57         return 1;
     58 
     59     if (test__extendhfsf2(UINT16_C(0x4248),
     60                           3.1415926535f))
     61         return 1;
     62     if (test__extendhfsf2(UINT16_C(0xc248),
     63                           -3.1415926535f))
     64         return 1;
     65     if (test__extendhfsf2(UINT16_C(0x7c00),
     66                           0x1.987124876876324p+100f))
     67         return 1;
     68     if (test__extendhfsf2(UINT16_C(0x6e62),
     69                           0x1.988p+12f))
     70         return 1;
     71     if (test__extendhfsf2(UINT16_C(0x3c00),
     72                           0x1.0p+0f))
     73         return 1;
     74     if (test__extendhfsf2(UINT16_C(0x0400),
     75                           0x1.0p-14f))
     76         return 1;
     77     // denormal
     78     if (test__extendhfsf2(UINT16_C(0x0010),
     79                           0x1.0p-20f))
     80         return 1;
     81     if (test__extendhfsf2(UINT16_C(0x0001),
     82                           0x1.0p-24f))
     83         return 1;
     84     if (test__extendhfsf2(UINT16_C(0x8001),
     85                           -0x1.0p-24f))
     86         return 1;
     87     if (test__extendhfsf2(UINT16_C(0x0001),
     88                           0x1.5p-25f))
     89         return 1;
     90     // and back to zero
     91     if (test__extendhfsf2(UINT16_C(0x0000),
     92                           0x1.0p-25f))
     93         return 1;
     94     if (test__extendhfsf2(UINT16_C(0x8000),
     95                           -0x1.0p-25f))
     96         return 1;
     97     // max (precise)
     98     if (test__extendhfsf2(UINT16_C(0x7bff),
     99                           65504.0f))
    100         return 1;
    101     // max (rounded)
    102     if (test__extendhfsf2(UINT16_C(0x7bff),
    103                           65504.0f))
    104         return 1;
    105     // max (to +inf)
    106     if (test__extendhfsf2(UINT16_C(0x7c00),
    107                           makeInf32()))
    108         return 1;
    109     if (test__extendhfsf2(UINT16_C(0xfc00),
    110                           -makeInf32()))
    111         return 1;
    112     return 0;
    113 }
    114