1//===-- fixsfdi_test.c - Test __fixsfdi -----------------------------------===//
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 __fixsfdi for the compiler_rt library.
11//
12//===----------------------------------------------------------------------===//
13
14#include "int_lib.h"
15#include <stdio.h>
16
17// Returns: convert a to a signed long long, rounding toward zero.
18
19// Assumption: float is a IEEE 32 bit floating point type
20//             su_int is a 32 bit integral type
21//             value in float is representable in di_int (no range checking performed)
22
23// seee eeee emmm mmmm mmmm mmmm mmmm mmmm
24
25COMPILER_RT_ABI di_int __fixsfdi(float a);
26
27int test__fixsfdi(float a, di_int expected)
28{
29    di_int x = __fixsfdi(a);
30    if (x != expected)
31        printf("error in __fixsfdi(%A) = %llX, expected %llX\n", a, x, expected);
32    return x != expected;
33}
34
35char assumption_1[sizeof(di_int) == 2*sizeof(si_int)] = {0};
36char assumption_2[sizeof(su_int)*CHAR_BIT == 32] = {0};
37char assumption_3[sizeof(float)*CHAR_BIT == 32] = {0};
38
39int main()
40{
41    if (test__fixsfdi(0.0F, 0))
42        return 1;
43
44    if (test__fixsfdi(0.5F, 0))
45        return 1;
46    if (test__fixsfdi(0.99F, 0))
47        return 1;
48    if (test__fixsfdi(1.0F, 1))
49        return 1;
50    if (test__fixsfdi(1.5F, 1))
51        return 1;
52    if (test__fixsfdi(1.99F, 1))
53        return 1;
54    if (test__fixsfdi(2.0F, 2))
55        return 1;
56    if (test__fixsfdi(2.01F, 2))
57        return 1;
58    if (test__fixsfdi(-0.5F, 0))
59        return 1;
60    if (test__fixsfdi(-0.99F, 0))
61        return 1;
62    if (test__fixsfdi(-1.0F, -1))
63        return 1;
64    if (test__fixsfdi(-1.5F, -1))
65        return 1;
66    if (test__fixsfdi(-1.99F, -1))
67        return 1;
68    if (test__fixsfdi(-2.0F, -2))
69        return 1;
70    if (test__fixsfdi(-2.01F, -2))
71        return 1;
72
73    if (test__fixsfdi(0x1.FFFFFEp+62F, 0x7FFFFF8000000000LL))
74        return 1;
75    if (test__fixsfdi(0x1.FFFFFCp+62F, 0x7FFFFF0000000000LL))
76        return 1;
77
78    if (test__fixsfdi(-0x1.FFFFFEp+62F, 0x8000008000000000LL))
79        return 1;
80    if (test__fixsfdi(-0x1.FFFFFCp+62F, 0x8000010000000000LL))
81        return 1;
82
83   return 0;
84}
85