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      1 //===--------------- extenddftf2_test.c - Test __extenddftf2 --------------===//
      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 __extenddftf2 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 long double __extenddftf2(double a);
     22 
     23 int test__extenddftf2(double a, uint64_t expectedHi, uint64_t expectedLo)
     24 {
     25     long double x = __extenddftf2(a);
     26     int ret = compareResultLD(x, expectedHi, expectedLo);
     27 
     28     if (ret){
     29         printf("error in test__extenddftf2(%f) = %.20Lf, "
     30                "expected %.20Lf\n", a, x, fromRep128(expectedHi, expectedLo));
     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__extenddftf2(makeQNaN64(),
     44                           UINT64_C(0x7fff800000000000),
     45                           UINT64_C(0x0)))
     46         return 1;
     47     // NaN
     48     if (test__extenddftf2(makeNaN64(UINT64_C(0x7100000000000)),
     49                           UINT64_C(0x7fff710000000000),
     50                           UINT64_C(0x0)))
     51         return 1;
     52     // inf
     53     if (test__extenddftf2(makeInf64(),
     54                           UINT64_C(0x7fff000000000000),
     55                           UINT64_C(0x0)))
     56         return 1;
     57     // zero
     58     if (test__extenddftf2(0.0, UINT64_C(0x0), UINT64_C(0x0)))
     59         return 1;
     60 
     61     if (test__extenddftf2(0x1.23456789abcdefp+5,
     62                           UINT64_C(0x400423456789abcd),
     63                           UINT64_C(0xf000000000000000)))
     64         return 1;
     65     if (test__extenddftf2(0x1.edcba987654321fp-9,
     66                           UINT64_C(0x3ff6edcba9876543),
     67                           UINT64_C(0x2000000000000000)))
     68         return 1;
     69     if (test__extenddftf2(0x1.23456789abcdefp+45,
     70                           UINT64_C(0x402c23456789abcd),
     71                           UINT64_C(0xf000000000000000)))
     72         return 1;
     73     if (test__extenddftf2(0x1.edcba987654321fp-45,
     74                           UINT64_C(0x3fd2edcba9876543),
     75                           UINT64_C(0x2000000000000000)))
     76         return 1;
     77 
     78 #else
     79     printf("skipped\n");
     80 
     81 #endif
     82     return 0;
     83 }
     84