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
25 di_int __fixsfdi(float a);
26
test__fixsfdi(float a,di_int expected)27 int 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
35 char assumption_1[sizeof(di_int) == 2*sizeof(si_int)] = {0};
36 char assumption_2[sizeof(su_int)*CHAR_BIT == 32] = {0};
37 char assumption_3[sizeof(float)*CHAR_BIT == 32] = {0};
38
main()39 int 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