compiler-rt/test/builtins/Unit/extendhfsf2_test.c

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: librt_has_extendhfsf2
   3
   4 #include <stdio.h>
   5
   6 #include "fp_test.h"
   7
   8 float __extendhfsf2(TYPE_FP16 a);
   9
  10 int test__extendhfsf2(TYPE_FP16 a, uint32_t expected)
  11 {
  12     float x = __extendhfsf2(a);
  13     int ret = compareResultF(x, expected);
  14
  15     if (ret){
  16         printf("error in test__extendhfsf2(%#.4x) = %f, "
  17                "expected %f\n", toRep16(a), x, fromRep32(expected));
  18     }
  19     return ret;
  20 }
  21
  22 char assumption_1[sizeof(TYPE_FP16) * CHAR_BIT == 16] = {0};
  23
  24 int main()
  25 {
  26     // qNaN
  27     if (test__extendhfsf2(fromRep16(0x7e00),
  28                           UINT32_C(0x7fc00000)))
  29         return 1;
  30     // NaN
  31     if (test__extendhfsf2(fromRep16(0x7f80),
  32                           UINT32_C(0x7ff00000)))
  33         return 1;
  34     // inf
  35     if (test__extendhfsf2(fromRep16(0x7c00),
  36                           UINT32_C(0x7f800000)))
  37         return 1;
  38     // -inf
  39     if (test__extendhfsf2(fromRep16(0xfc00),
  40                           UINT32_C(0xff800000)))
  41         return 1;
  42     // zero
  43     if (test__extendhfsf2(fromRep16(0x0),
  44                           UINT32_C(0x00000000)))
  45         return 1;
  46     // -zero
  47     if (test__extendhfsf2(fromRep16(0x8000),
  48                           UINT32_C(0x80000000)))
  49         return 1;
  50     if (test__extendhfsf2(fromRep16(0x4248),
  51                           UINT32_C(0x40490000)))
  52         return 1;
  53     if (test__extendhfsf2(fromRep16(0xc248),
  54                           UINT32_C(0xc0490000)))
  55         return 1;
  56     if (test__extendhfsf2(fromRep16(0x6e62),
  57                           UINT32_C(0x45cc4000)))
  58         return 1;
  59     if (test__extendhfsf2(fromRep16(0x3c00),
  60                           UINT32_C(0x3f800000)))
  61         return 1;
  62     if (test__extendhfsf2(fromRep16(0x0400),
  63                           UINT32_C(0x38800000)))
  64         return 1;
  65     // denormal
  66     if (test__extendhfsf2(fromRep16(0x0010),
  67                           UINT32_C(0x35800000)))
  68         return 1;
  69     if (test__extendhfsf2(fromRep16(0x0001),
  70                           UINT32_C(0x33800000)))
  71         return 1;
  72     if (test__extendhfsf2(fromRep16(0x8001),
  73                           UINT32_C(0xb3800000)))
  74         return 1;
  75     if (test__extendhfsf2(fromRep16(0x0001),
  76                           UINT32_C(0x33800000)))
  77         return 1;
  78     // max (precise)
  79     if (test__extendhfsf2(fromRep16(0x7bff),
  80                           UINT32_C(0x477fe000)))
  81         return 1;
  82     // max (rounded)
  83     if (test__extendhfsf2(fromRep16(0x7bff),
  84                           UINT32_C(0x477fe000)))
  85         return 1;
  86     return 0;
  87 }