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      1 //===--------------- divtf3_test.c - Test __divtf3 ------------------------===//
      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 __divtf3 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 // Returns: a / b
     22 COMPILER_RT_ABI long double __divtf3(long double a, long double b);
     23 
     24 int test__divtf3(long double a, long double b,
     25                  uint64_t expectedHi, uint64_t expectedLo)
     26 {
     27     long double x = __divtf3(a, b);
     28     int ret = compareResultLD(x, expectedHi, expectedLo);
     29 
     30     if (ret){
     31         printf("error in test__divtf3(%.20Lf, %.20Lf) = %.20Lf, "
     32                "expected %.20Lf\n", a, b, x,
     33                fromRep128(expectedHi, expectedLo));
     34     }
     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     // qNaN / any = qNaN
     46     if (test__divtf3(makeQNaN128(),
     47                      0x1.23456789abcdefp+5L,
     48                      UINT64_C(0x7fff800000000000),
     49                      UINT64_C(0x0)))
     50         return 1;
     51     // NaN / any = NaN
     52     if (test__divtf3(makeNaN128(UINT64_C(0x800030000000)),
     53                      0x1.23456789abcdefp+5L,
     54                      UINT64_C(0x7fff800000000000),
     55                      UINT64_C(0x0)))
     56         return 1;
     57     // inf / any = inf
     58     if (test__divtf3(makeInf128(),
     59                      0x1.23456789abcdefp+5L,
     60                      UINT64_C(0x7fff000000000000),
     61                      UINT64_C(0x0)))
     62         return 1;
     63     // any / any
     64     if (test__divtf3(0x1.a23b45362464523375893ab4cdefp+5L,
     65                      0x1.eedcbaba3a94546558237654321fp-1L,
     66                      UINT64_C(0x4004b0b72924d407),
     67                      UINT64_C(0x0717e84356c6eba2)))
     68         return 1;
     69     if (test__divtf3(0x1.a2b34c56d745382f9abf2c3dfeffp-50L,
     70                      0x1.ed2c3ba15935332532287654321fp-9L,
     71                      UINT64_C(0x3fd5b2af3f828c9b),
     72                      UINT64_C(0x40e51f64cde8b1f2)))
     73         return 15;
     74     if (test__divtf3(0x1.2345f6aaaa786555f42432abcdefp+456L,
     75                      0x1.edacbba9874f765463544dd3621fp+6400L,
     76                      UINT64_C(0x28c62e15dc464466),
     77                      UINT64_C(0xb5a07586348557ac)))
     78         return 1;
     79     if (test__divtf3(0x1.2d3456f789ba6322bc665544edefp-234L,
     80                      0x1.eddcdba39f3c8b7a36564354321fp-4455L,
     81                      UINT64_C(0x507b38442b539266),
     82                      UINT64_C(0x22ce0f1d024e1252)))
     83         return 1;
     84     if (test__divtf3(0x1.2345f6b77b7a8953365433abcdefp+234L,
     85                      0x1.edcba987d6bb3aa467754354321fp-4055L,
     86                      UINT64_C(0x50bf2e02f0798d36),
     87                      UINT64_C(0x5e6fcb6b60044078)))
     88         return 1;
     89 
     90 #else
     91     printf("skipped\n");
     92 
     93 #endif
     94     return 0;
     95 }
     96