compiler-rt/test/builtins/Unit/getf2_test.c

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: librt_has_comparetf2
   3
   4 #include <stdio.h>
   5
   6 #if __LP64__ && __LDBL_MANT_DIG__ == 113
   7
   8 #include "fp_test.h"
   9
  10 int __getf2(long double a, long double b);
  11
  12 int test__getf2(long double a, long double b, enum EXPECTED_RESULT expected)
  13 {
  14     int x = __getf2(a, b);
  15     int ret = compareResultCMP(x, expected);
  16
  17     if (ret){
  18         printf("error in test__getf2(%.20Lf, %.20Lf) = %d, "
  19                "expected %s\n", a, b, x, expectedStr(expected));
  20     }
  21     return ret;
  22 }
  23
  24 char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};
  25
  26 #endif
  27
  28 int main()
  29 {
  30 #if __LP64__ && __LDBL_MANT_DIG__ == 113
  31     // NaN
  32     if (test__getf2(makeQNaN128(),
  33                     0x1.234567890abcdef1234567890abcp+3L,
  34                     LESS_0))
  35         return 1;
  36     // <
  37     // exp
  38     if (test__getf2(0x1.234567890abcdef1234567890abcp-3L,
  39                     0x1.234567890abcdef1234567890abcp+3L,
  40                     LESS_0))
  41         return 1;
  42     // mantissa
  43     if (test__getf2(0x1.234567890abcdef1234567890abcp+3L,
  44                     0x1.334567890abcdef1234567890abcp+3L,
  45                     LESS_0))
  46         return 1;
  47     // sign
  48     if (test__getf2(-0x1.234567890abcdef1234567890abcp+3L,
  49                     0x1.234567890abcdef1234567890abcp+3L,
  50                     LESS_0))
  51         return 1;
  52     // ==
  53     if (test__getf2(0x1.234567890abcdef1234567890abcp+3L,
  54                     0x1.234567890abcdef1234567890abcp+3L,
  55                     GREATER_EQUAL_0))
  56         return 1;
  57     // >
  58     // exp
  59     if (test__getf2(0x1.234567890abcdef1234567890abcp+3L,
  60                     0x1.234567890abcdef1234567890abcp-3L,
  61                     GREATER_EQUAL_0))
  62         return 1;
  63     // mantissa
  64     if (test__getf2(0x1.334567890abcdef1234567890abcp+3L,
  65                     0x1.234567890abcdef1234567890abcp+3L,
  66                     GREATER_EQUAL_0))
  67         return 1;
  68     // sign
  69     if (test__getf2(0x1.234567890abcdef1234567890abcp+3L,
  70                     -0x1.234567890abcdef1234567890abcp+3L,
  71                     GREATER_EQUAL_0))
  72         return 1;
  73
  74 #else
  75     printf("skipped\n");
  76
  77 #endif
  78     return 0;
  79 }