1d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling//===-- floattisf_test.c - Test __floattisf -------------------------------===//
2d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling//
3d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling//                     The LLVM Compiler Infrastructure
4d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling//
5d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling// This file is dual licensed under the MIT and the University of Illinois Open
6d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling// Source Licenses. See LICENSE.TXT for details.
7d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling//
8d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling//===----------------------------------------------------------------------===//
9d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling//
10d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling// This file tests __floattisf for the compiler_rt library.
11d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling//
12d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling//===----------------------------------------------------------------------===//
13d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling
14d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling#include "int_lib.h"
15d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling#include <float.h>
16d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling#include <stdio.h>
17d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling
18d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling#ifdef CRT_HAS_128BIT
19d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling
20d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling// Returns: convert a to a float, rounding toward even.
21d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling
22d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling// Assumption: float is a IEEE 32 bit floating point type
23d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling//             ti_int is a 64 bit integral type
24d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling
25d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling// seee eeee emmm mmmm mmmm mmmm mmmm mmmm
26d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling
27d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendlingfloat __floattisf(ti_int a);
28d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendling
29d06f2fc03087e7cccda19bd550bf6fb3bc2f5ae7Bill Wendlingint test__floattisf(ti_int a, float expected)
30{
31    float x = __floattisf(a);
32    if (x != expected)
33    {
34        twords at;
35        at.all = a;
36        printf("error in __floattisf(0x%.16llX%.16llX) = %a, expected %a\n",
37               at.s.high, at.s.low, x, expected);
38    }
39    return x != expected;
40}
41
42char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0};
43char assumption_2[sizeof(ti_int)*CHAR_BIT == 128] = {0};
44char assumption_3[sizeof(float)*CHAR_BIT == 32] = {0};
45
46#endif
47
48int main()
49{
50#ifdef CRT_HAS_128BIT
51    if (test__floattisf(0, 0.0F))
52        return 1;
53
54    if (test__floattisf(1, 1.0F))
55        return 1;
56    if (test__floattisf(2, 2.0F))
57        return 1;
58    if (test__floattisf(-1, -1.0F))
59        return 1;
60    if (test__floattisf(-2, -2.0F))
61        return 1;
62
63    if (test__floattisf(0x7FFFFF8000000000LL, 0x1.FFFFFEp+62F))
64        return 1;
65    if (test__floattisf(0x7FFFFF0000000000LL, 0x1.FFFFFCp+62F))
66        return 1;
67
68    if (test__floattisf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0x8000008000000000LL),
69                        -0x1.FFFFFEp+62F))
70        return 1;
71    if (test__floattisf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0x8000010000000000LL),
72                        -0x1.FFFFFCp+62F))
73        return 1;
74
75    if (test__floattisf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0x8000000000000000LL),
76                        -0x1.000000p+63F))
77        return 1;
78    if (test__floattisf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0x8000000000000001LL),
79                        -0x1.000000p+63F))
80        return 1;
81
82    if (test__floattisf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50F))
83        return 1;
84
85    if (test__floattisf(0x0007FB72EA000000LL, 0x1.FEDCBAp+50F))
86        return 1;
87    if (test__floattisf(0x0007FB72EB000000LL, 0x1.FEDCBAp+50F))
88        return 1;
89    if (test__floattisf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAp+50F))
90        return 1;
91    if (test__floattisf(0x0007FB72EC000000LL, 0x1.FEDCBCp+50F))
92        return 1;
93    if (test__floattisf(0x0007FB72E8000001LL, 0x1.FEDCBAp+50F))
94        return 1;
95
96    if (test__floattisf(0x0007FB72E6000000LL, 0x1.FEDCBAp+50F))
97        return 1;
98    if (test__floattisf(0x0007FB72E7000000LL, 0x1.FEDCBAp+50F))
99        return 1;
100    if (test__floattisf(0x0007FB72E7FFFFFFLL, 0x1.FEDCBAp+50F))
101        return 1;
102    if (test__floattisf(0x0007FB72E4000001LL, 0x1.FEDCBAp+50F))
103        return 1;
104    if (test__floattisf(0x0007FB72E4000000LL, 0x1.FEDCB8p+50F))
105        return 1;
106
107    if (test__floattisf(make_ti(0x0007FB72E8000000LL, 0), 0x1.FEDCBAp+114F))
108        return 1;
109
110    if (test__floattisf(make_ti(0x0007FB72EA000000LL, 0), 0x1.FEDCBAp+114F))
111        return 1;
112    if (test__floattisf(make_ti(0x0007FB72EB000000LL, 0), 0x1.FEDCBAp+114F))
113        return 1;
114    if (test__floattisf(make_ti(0x0007FB72EBFFFFFFLL, 0), 0x1.FEDCBAp+114F))
115        return 1;
116    if (test__floattisf(make_ti(0x0007FB72EC000000LL, 0), 0x1.FEDCBCp+114F))
117        return 1;
118    if (test__floattisf(make_ti(0x0007FB72E8000001LL, 0), 0x1.FEDCBAp+114F))
119        return 1;
120
121    if (test__floattisf(make_ti(0x0007FB72E6000000LL, 0), 0x1.FEDCBAp+114F))
122        return 1;
123    if (test__floattisf(make_ti(0x0007FB72E7000000LL, 0), 0x1.FEDCBAp+114F))
124        return 1;
125    if (test__floattisf(make_ti(0x0007FB72E7FFFFFFLL, 0), 0x1.FEDCBAp+114F))
126        return 1;
127    if (test__floattisf(make_ti(0x0007FB72E4000001LL, 0), 0x1.FEDCBAp+114F))
128        return 1;
129    if (test__floattisf(make_ti(0x0007FB72E4000000LL, 0), 0x1.FEDCB8p+114F))
130        return 1;
131
132#else
133    printf("skipped\n");
134#endif
135   return 0;
136}
137