compiler-rt/test/builtins/Unit/fixunstfdi_test.c

   1 // XFAIL: target=aarch64-{{.*}}-windows-{{.*}}
   2 // RUN: %clang_builtins %s %librt -o %t && %run %t
   3 // REQUIRES: librt_has_fixunstfdi
   4
   5 #include <stdio.h>
   6
   7 #if _ARCH_PPC || __aarch64__
   8
   9 #include "int_lib.h"
  10
  11 // Returns: convert a to a unsigned long long, rounding toward zero.
  12 //          Negative values all become zero.
  13
  14 // Assumption: long double is a 128 bit floating point type
  15 //             du_int is a 64 bit integral type
  16 //             value in long double is representable in du_int or is negative
  17 //                 (no range checking performed)
  18
  19 COMPILER_RT_ABI du_int __fixunstfdi(long double a);
  20
  21 int test__fixunstfdi(long double a, du_int expected)
  22 {
  23     du_int x = __fixunstfdi(a);
  24     if (x != expected)
  25         printf("error in __fixunstfdi(%LA) = %llX, expected %llX\n",
  26                a, x, expected);
  27     return x != expected;
  28 }
  29
  30 char assumption_1[sizeof(du_int) == 2*sizeof(su_int)] = {0};
  31 char assumption_2[sizeof(du_int)*CHAR_BIT == 64] = {0};
  32 char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0};
  33
  34 #endif
  35
  36 int main()
  37 {
  38 #if _ARCH_PPC || __aarch64__
  39     if (test__fixunstfdi(0.0, 0))
  40         return 1;
  41
  42     if (test__fixunstfdi(0.5, 0))
  43         return 1;
  44     if (test__fixunstfdi(0.99, 0))
  45         return 1;
  46     if (test__fixunstfdi(1.0, 1))
  47         return 1;
  48     if (test__fixunstfdi(1.5, 1))
  49         return 1;
  50     if (test__fixunstfdi(1.99, 1))
  51         return 1;
  52     if (test__fixunstfdi(2.0, 2))
  53         return 1;
  54     if (test__fixunstfdi(2.01, 2))
  55         return 1;
  56     if (test__fixunstfdi(-0.5, 0))
  57         return 1;
  58     if (test__fixunstfdi(-0.99, 0))
  59         return 1;
  60     if (test__fixunstfdi(-1.0, 0))
  61         return 1;
  62     if (test__fixunstfdi(-1.5, 0))
  63         return 1;
  64     if (test__fixunstfdi(-1.99, 0))
  65         return 1;
  66     if (test__fixunstfdi(-2.0, 0))
  67         return 1;
  68     if (test__fixunstfdi(-2.01, 0))
  69         return 1;
  70
  71     if (test__fixunstfdi(0x1.FFFFFEp+62, 0x7FFFFF8000000000LL))
  72         return 1;
  73     if (test__fixunstfdi(0x1.FFFFFCp+62, 0x7FFFFF0000000000LL))
  74         return 1;
  75
  76     if (test__fixunstfdi(-0x1.FFFFFEp+62, 0))
  77         return 1;
  78     if (test__fixunstfdi(-0x1.FFFFFCp+62, 0))
  79         return 1;
  80
  81     if (test__fixunstfdi(0x1.FFFFFFFFFFFFFp+62, 0x7FFFFFFFFFFFFC00LL))
  82         return 1;
  83     if (test__fixunstfdi(0x1.FFFFFFFFFFFFEp+62, 0x7FFFFFFFFFFFF800LL))
  84         return 1;
  85
  86     if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFp+62, 0))
  87         return 1;
  88     if (test__fixunstfdi(-0x1.FFFFFFFFFFFFEp+62, 0))
  89         return 1;
  90
  91     if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFFEp+63L, 0xFFFFFFFFFFFFFFFFLL))
  92         return 1;
  93     if (test__fixunstfdi(0x1.0000000000000002p+63L, 0x8000000000000001LL))
  94         return 1;
  95     if (test__fixunstfdi(0x1.0000000000000000p+63L, 0x8000000000000000LL))
  96         return 1;
  97     if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFFCp+62L, 0x7FFFFFFFFFFFFFFFLL))
  98         return 1;
  99     if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFF8p+62L, 0x7FFFFFFFFFFFFFFELL))
 100         return 1;
 101     if (test__fixunstfdi(0x1.p+64L, 0xFFFFFFFFFFFFFFFFLL))
 102         return 1;
 103
 104     if (test__fixunstfdi(-0x1.0000000000000000p+63L, 0))
 105         return 1;
 106     if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFFFCp+62L, 0))
 107         return 1;
 108     if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFFF8p+62L, 0))
 109         return 1;
 110
 111 #else
 112     printf("skipped\n");
 113 #endif
 114    return 0;
 115 }