1 //===-- fixunssfdi_test.c - Test __fixunssfdi -----------------------------===//
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 __fixunssfdi for the compiler_rt library.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #include "int_lib.h"
15 #include <stdio.h>
16
17 // Returns: convert a to a unsigned long long, rounding toward zero.
18 // Negative values all become zero.
19
20 // Assumption: float is a IEEE 32 bit floating point type
21 // du_int is a 64 bit integral type
22 // value in float is representable in du_int or is negative
23 // (no range checking performed)
24
25 // seee eeee emmm mmmm mmmm mmmm mmmm mmmm
26
27 COMPILER_RT_ABI du_int __fixunssfdi(float a);
28
test__fixunssfdi(float a,du_int expected)29 int test__fixunssfdi(float a, du_int expected)
30 {
31 du_int x = __fixunssfdi(a);
32 if (x != expected)
33 printf("error in __fixunssfdi(%A) = %llX, expected %llX\n",
34 a, x, expected);
35 return x != expected;
36 }
37
38 char assumption_1[sizeof(du_int) == 2*sizeof(si_int)] = {0};
39 char assumption_2[sizeof(su_int)*CHAR_BIT == 32] = {0};
40 char assumption_3[sizeof(float)*CHAR_BIT == 32] = {0};
41
main()42 int main()
43 {
44 if (test__fixunssfdi(0.0F, 0))
45 return 1;
46
47 if (test__fixunssfdi(0.5F, 0))
48 return 1;
49 if (test__fixunssfdi(0.99F, 0))
50 return 1;
51 if (test__fixunssfdi(1.0F, 1))
52 return 1;
53 if (test__fixunssfdi(1.5F, 1))
54 return 1;
55 if (test__fixunssfdi(1.99F, 1))
56 return 1;
57 if (test__fixunssfdi(2.0F, 2))
58 return 1;
59 if (test__fixunssfdi(2.01F, 2))
60 return 1;
61 if (test__fixunssfdi(-0.5F, 0))
62 return 1;
63 if (test__fixunssfdi(-0.99F, 0))
64 return 1;
65 #if !TARGET_LIBGCC
66 if (test__fixunssfdi(-1.0F, 0)) // libgcc ignores "returns 0 for negative input" spec
67 return 1;
68 if (test__fixunssfdi(-1.5F, 0))
69 return 1;
70 if (test__fixunssfdi(-1.99F, 0))
71 return 1;
72 if (test__fixunssfdi(-2.0F, 0))
73 return 1;
74 if (test__fixunssfdi(-2.01F, 0))
75 return 1;
76 #endif
77
78 if (test__fixunssfdi(0x1.FFFFFEp+63F, 0xFFFFFF0000000000LL))
79 return 1;
80 if (test__fixunssfdi(0x1.000000p+63F, 0x8000000000000000LL))
81 return 1;
82 if (test__fixunssfdi(0x1.000000p+64F, 0xFFFFFFFFFFFFFFFFLL))
83 return 1;
84 if (test__fixunssfdi(0x1.FFFFFEp+62F, 0x7FFFFF8000000000LL))
85 return 1;
86 if (test__fixunssfdi(0x1.FFFFFCp+62F, 0x7FFFFF0000000000LL))
87 return 1;
88
89 #if !TARGET_LIBGCC
90 if (test__fixunssfdi(-0x1.FFFFFEp+62F, 0x0000000000000000LL))
91 return 1;
92 if (test__fixunssfdi(-0x1.FFFFFCp+62F, 0x0000000000000000LL))
93 return 1;
94 #endif
95
96 return 0;
97 }
98