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

   1 //===-- floatuntisf.c - Test __floatuntisf --------------------------------===//
   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 __floatuntisf for the compiler_rt library.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #if __x86_64
  15
  16 #include "int_lib.h"
  17 #include <float.h>
  18 #include <stdio.h>
  19
  20 // Returns: convert a to a float, rounding toward even.
  21
  22 // Assumption: float is a IEEE 32 bit floating point type
  23 //             tu_int is a 128 bit integral type
  24
  25 // seee eeee emmm mmmm mmmm mmmm mmmm mmmm
  26
  27 float __floatuntisf(tu_int a);
  28
  29 int test__floatuntisf(tu_int a, float expected)
  30 {
  31     float x = __floatuntisf(a);
  32     if (x != expected)
  33     {
  34         utwords at;
  35         at.all = a;
  36         printf("error in __floatuntisf(0x%.16llX%.16llX) = %a, expected %a\n",
  37                at.s.high, at.s.low, x, expected);
  38     }
  39     return x != expected;
  40 }
  41
  42 char assumption_1[sizeof(tu_int) == 2*sizeof(du_int)] = {0};
  43 char assumption_2[sizeof(tu_int)*CHAR_BIT == 128] = {0};
  44 char assumption_3[sizeof(float)*CHAR_BIT == 32] = {0};
  45
  46 #endif
  47
  48 int main()
  49 {
  50 #if __x86_64
  51     if (test__floatuntisf(0, 0.0F))
  52         return 1;
  53
  54     if (test__floatuntisf(1, 1.0F))
  55         return 1;
  56     if (test__floatuntisf(2, 2.0F))
  57         return 1;
  58     if (test__floatuntisf(20, 20.0F))
  59         return 1;
  60
  61     if (test__floatuntisf(0x7FFFFF8000000000LL, 0x1.FFFFFEp+62F))
  62         return 1;
  63     if (test__floatuntisf(0x7FFFFF0000000000LL, 0x1.FFFFFCp+62F))
  64         return 1;
  65
  66     if (test__floatuntisf(make_ti(0x8000008000000000LL, 0), 0x1.000001p+127F))
  67         return 1;
  68     if (test__floatuntisf(make_ti(0x8000000000000800LL, 0), 0x1.0p+127F))
  69         return 1;
  70     if (test__floatuntisf(make_ti(0x8000010000000000LL, 0), 0x1.000002p+127F))
  71         return 1;
  72
  73     if (test__floatuntisf(make_ti(0x8000000000000000LL, 0), 0x1.000000p+127F))
  74         return 1;
  75
  76     if (test__floatuntisf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50F))
  77         return 1;
  78
  79     if (test__floatuntisf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50F))
  80         return 1;
  81     if (test__floatuntisf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50F))
  82         return 1;
  83
  84     if (test__floatuntisf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50F))
  85         return 1;
  86
  87     if (test__floatuntisf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50F))
  88         return 1;
  89     if (test__floatuntisf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50F))
  90         return 1;
  91     if (test__floatuntisf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50F))
  92         return 1;
  93
  94     if (test__floatuntisf(0xFFFFFFFFFFFFFFFELL, 0x1p+64F))
  95         return 1;
  96     if (test__floatuntisf(0xFFFFFFFFFFFFFFFFLL, 0x1p+64F))
  97         return 1;
  98
  99     if (test__floatuntisf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50F))
 100         return 1;
 101
 102     if (test__floatuntisf(0x0007FB72EA000000LL, 0x1.FEDCBAp+50F))
 103         return 1;
 104     if (test__floatuntisf(0x0007FB72EB000000LL, 0x1.FEDCBAp+50F))
 105         return 1;
 106     if (test__floatuntisf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAp+50F))
 107         return 1;
 108     if (test__floatuntisf(0x0007FB72EC000000LL, 0x1.FEDCBCp+50F))
 109         return 1;
 110     if (test__floatuntisf(0x0007FB72E8000001LL, 0x1.FEDCBAp+50F))
 111         return 1;
 112
 113     if (test__floatuntisf(0x0007FB72E6000000LL, 0x1.FEDCBAp+50F))
 114         return 1;
 115     if (test__floatuntisf(0x0007FB72E7000000LL, 0x1.FEDCBAp+50F))
 116         return 1;
 117     if (test__floatuntisf(0x0007FB72E7FFFFFFLL, 0x1.FEDCBAp+50F))
 118         return 1;
 119     if (test__floatuntisf(0x0007FB72E4000001LL, 0x1.FEDCBAp+50F))
 120         return 1;
 121     if (test__floatuntisf(0x0007FB72E4000000LL, 0x1.FEDCB8p+50F))
 122         return 1;
 123
 124     if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCB90000000000001LL),
 125                           0x1.FEDCBAp+76F))
 126         return 1;
 127     if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBA0000000000000LL),
 128                           0x1.FEDCBAp+76F))
 129         return 1;
 130     if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBAFFFFFFFFFFFFFLL),
 131                           0x1.FEDCBAp+76F))
 132         return 1;
 133     if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBB0000000000000LL),
 134                           0x1.FEDCBCp+76F))
 135         return 1;
 136     if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBB0000000000001LL),
 137                           0x1.FEDCBCp+76F))
 138         return 1;
 139     if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBBFFFFFFFFFFFFFLL),
 140                           0x1.FEDCBCp+76F))
 141         return 1;
 142     if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBC0000000000000LL),
 143                           0x1.FEDCBCp+76F))
 144         return 1;
 145     if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBC0000000000001LL),
 146                           0x1.FEDCBCp+76F))
 147         return 1;
 148     if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBD0000000000000LL),
 149                           0x1.FEDCBCp+76F))
 150         return 1;
 151     if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBD0000000000001LL),
 152                           0x1.FEDCBEp+76F))
 153         return 1;
 154     if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBDFFFFFFFFFFFFFLL),
 155                           0x1.FEDCBEp+76F))
 156         return 1;
 157     if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBE0000000000000LL),
 158                           0x1.FEDCBEp+76F))
 159         return 1;
 160
 161 #else
 162     printf("skipped\n");
 163 #endif
 164    return 0;
 165 }