sys/external/bsd/compiler_rt/dist/test/Unit/fixunstfdi_test.c

   1 //===-- fixunstfdi_test.c - Test __fixunstfdi -----------------------------===//
   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 __fixunstfdi for the compiler_rt library.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #if _ARCH_PPC
  15
  16 #include "int_lib.h"
  17 #include <stdio.h>
  18
  19 // Returns: convert a to a unsigned long long, rounding toward zero.
  20 //          Negative values all become zero.
  21
  22 // Assumption: long double is a ppc 128 bit floating point type
  23 //             du_int is a 64 bit integral type
  24 //             value in long double is representable in du_int or is negative
  25 //                 (no range checking performed)
  26
  27 du_int __fixunstfdi(long double a);
  28
  29 int test__fixunstfdi(long double a, du_int expected)
  30 {
  31     du_int x = __fixunstfdi(a);
  32     if (x != expected)
  33         printf("error in __fixunstfdi(%LA) = %llX, expected %llX\n",
  34                a, x, expected);
  35     return x != expected;
  36 }
  37
  38 char assumption_1[sizeof(du_int) == 2*sizeof(su_int)] = {0};
  39 char assumption_2[sizeof(du_int)*CHAR_BIT == 64] = {0};
  40 char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0};
  41
  42 #endif
  43
  44 int main()
  45 {
  46 #if _ARCH_PPC
  47     if (test__fixunstfdi(0.0, 0))
  48         return 1;
  49
  50     if (test__fixunstfdi(0.5, 0))
  51         return 1;
  52     if (test__fixunstfdi(0.99, 0))
  53         return 1;
  54     if (test__fixunstfdi(1.0, 1))
  55         return 1;
  56     if (test__fixunstfdi(1.5, 1))
  57         return 1;
  58     if (test__fixunstfdi(1.99, 1))
  59         return 1;
  60     if (test__fixunstfdi(2.0, 2))
  61         return 1;
  62     if (test__fixunstfdi(2.01, 2))
  63         return 1;
  64     if (test__fixunstfdi(-0.5, 0))
  65         return 1;
  66     if (test__fixunstfdi(-0.99, 0))
  67         return 1;
  68     if (test__fixunstfdi(-1.0, 0))
  69         return 1;
  70     if (test__fixunstfdi(-1.5, 0))
  71         return 1;
  72     if (test__fixunstfdi(-1.99, 0))
  73         return 1;
  74     if (test__fixunstfdi(-2.0, 0))
  75         return 1;
  76     if (test__fixunstfdi(-2.01, 0))
  77         return 1;
  78
  79     if (test__fixunstfdi(0x1.FFFFFEp+62, 0x7FFFFF8000000000LL))
  80         return 1;
  81     if (test__fixunstfdi(0x1.FFFFFCp+62, 0x7FFFFF0000000000LL))
  82         return 1;
  83
  84     if (test__fixunstfdi(-0x1.FFFFFEp+62, 0))
  85         return 1;
  86     if (test__fixunstfdi(-0x1.FFFFFCp+62, 0))
  87         return 1;
  88
  89     if (test__fixunstfdi(0x1.FFFFFFFFFFFFFp+62, 0x7FFFFFFFFFFFFC00LL))
  90         return 1;
  91     if (test__fixunstfdi(0x1.FFFFFFFFFFFFEp+62, 0x7FFFFFFFFFFFF800LL))
  92         return 1;
  93
  94     if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFp+62, 0))
  95         return 1;
  96     if (test__fixunstfdi(-0x1.FFFFFFFFFFFFEp+62, 0))
  97         return 1;
  98
  99     if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFFEp+63L, 0xFFFFFFFFFFFFFFFFLL))
 100         return 1;
 101     if (test__fixunstfdi(0x1.0000000000000002p+63L, 0x8000000000000001LL))
 102         return 1;
 103     if (test__fixunstfdi(0x1.0000000000000000p+63L, 0x8000000000000000LL))
 104         return 1;
 105     if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFFCp+62L, 0x7FFFFFFFFFFFFFFFLL))
 106         return 1;
 107     if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFF8p+62L, 0x7FFFFFFFFFFFFFFELL))
 108         return 1;
 109
 110     if (test__fixunstfdi(-0x1.0000000000000000p+63L, 0))
 111         return 1;
 112     if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFFFCp+62L, 0))
 113         return 1;
 114     if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFFF8p+62L, 0))
 115         return 1;
 116
 117 #else
 118     printf("skipped\n");
 119 #endif
 120    return 0;
 121 }