Home | History | Annotate | Download | only in Unit 
      1 //===-- floatunditf_test.c - Test __floatunditf ---------------------------===//
      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 __floatunditf for the compiler_rt library.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 #include "int_lib.h"
     15 #include <math.h>
     16 #include <complex.h>
     17 #include <stdio.h>
     18 
     19 #if __LDBL_MANT_DIG__ == 113
     20 
     21 #include "fp_test.h"
     22 
     23 // Returns: long integer converted to long double
     24 
     25 COMPILER_RT_ABI long double __floatunditf(unsigned long long a);
     26 
     27 int test__floatunditf(unsigned long long a, uint64_t expectedHi, uint64_t expectedLo)
     28 {
     29     long double x = __floatunditf(a);
     30     int ret = compareResultLD(x, expectedHi, expectedLo);
     31 
     32     if (ret)
     33         printf("error in __floatunditf(%Lu) = %.20Lf, "
     34                "expected %.20Lf\n", a, x, fromRep128(expectedHi, expectedLo));
     35     return ret;
     36 }
     37 
     38 char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};
     39 
     40 #endif
     41 
     42 int main()
     43 {
     44 #if __LDBL_MANT_DIG__ == 113
     45     if (test__floatunditf(0xffffffffffffffffULL, UINT64_C(0x403effffffffffff), UINT64_C(0xfffe000000000000)))
     46         return 1;
     47     if (test__floatunditf(0xfffffffffffffffeULL, UINT64_C(0x403effffffffffff), UINT64_C(0xfffc000000000000)))
     48         return 1;
     49     if (test__floatunditf(0x8000000000000000ULL, UINT64_C(0x403e000000000000), UINT64_C(0x0)))
     50         return 1;
     51     if (test__floatunditf(0x7fffffffffffffffULL, UINT64_C(0x403dffffffffffff), UINT64_C(0xfffc000000000000)))
     52         return 1;
     53     if (test__floatunditf(0x123456789abcdef1ULL, UINT64_C(0x403b23456789abcd), UINT64_C(0xef10000000000000)))
     54         return 1;
     55     if (test__floatunditf(0x2ULL, UINT64_C(0x4000000000000000), UINT64_C(0x0)))
     56         return 1;
     57     if (test__floatunditf(0x1ULL, UINT64_C(0x3fff000000000000), UINT64_C(0x0)))
     58         return 1;
     59     if (test__floatunditf(0x0ULL, UINT64_C(0x0), UINT64_C(0x0)))
     60         return 1;
     61 
     62 #else
     63     printf("skipped\n");
     64 
     65 #endif
     66     return 0;
     67 }
     68