1 //===-- fixsfti_test.c - Test __fixsfti -----------------------------------===//
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 __fixsfti for the compiler_rt library.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #include "int_lib.h"
15 #include <stdio.h>
16
17 #ifdef CRT_HAS_128BIT
18
19 // Returns: convert a to a signed long long, rounding toward zero.
20
21 // Assumption: float is a IEEE 32 bit floating point type
22 // su_int is a 32 bit integral type
23 // value in float is representable in ti_int (no range checking performed)
24
25 // seee eeee emmm mmmm mmmm mmmm mmmm mmmm
26
27 ti_int __fixsfti(float a);
28
test__fixsfti(float a,ti_int expected)29 int test__fixsfti(float a, ti_int expected)
30 {
31 ti_int x = __fixsfti(a);
32 if (x != expected)
33 {
34 twords xt;
35 xt.all = x;
36 twords expectedt;
37 expectedt.all = expected;
38 printf("error in __fixsfti(%A) = 0x%.16llX%.16llX, expected 0x%.16llX%.16llX\n",
39 a, xt.s.high, xt.s.low, expectedt.s.high, expectedt.s.low);
40 }
41 return x != expected;
42 }
43
44 char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0};
45 char assumption_2[sizeof(su_int)*CHAR_BIT == 32] = {0};
46 char assumption_3[sizeof(float)*CHAR_BIT == 32] = {0};
47
48 #endif
49
main()50 int main()
51 {
52 #ifdef CRT_HAS_128BIT
53 if (test__fixsfti(0.0F, 0))
54 return 1;
55
56 if (test__fixsfti(0.5F, 0))
57 return 1;
58 if (test__fixsfti(0.99F, 0))
59 return 1;
60 if (test__fixsfti(1.0F, 1))
61 return 1;
62 if (test__fixsfti(1.5F, 1))
63 return 1;
64 if (test__fixsfti(1.99F, 1))
65 return 1;
66 if (test__fixsfti(2.0F, 2))
67 return 1;
68 if (test__fixsfti(2.01F, 2))
69 return 1;
70 if (test__fixsfti(-0.5F, 0))
71 return 1;
72 if (test__fixsfti(-0.99F, 0))
73 return 1;
74 if (test__fixsfti(-1.0F, -1))
75 return 1;
76 if (test__fixsfti(-1.5F, -1))
77 return 1;
78 if (test__fixsfti(-1.99F, -1))
79 return 1;
80 if (test__fixsfti(-2.0F, -2))
81 return 1;
82 if (test__fixsfti(-2.01F, -2))
83 return 1;
84
85 if (test__fixsfti(0x1.FFFFFEp+62F, 0x7FFFFF8000000000LL))
86 return 1;
87 if (test__fixsfti(0x1.FFFFFCp+62F, 0x7FFFFF0000000000LL))
88 return 1;
89
90 if (test__fixsfti(-0x1.FFFFFEp+62F, make_ti(0xFFFFFFFFFFFFFFFFLL,
91 0x8000008000000000LL)))
92 return 1;
93 if (test__fixsfti(-0x1.FFFFFCp+62F, make_ti(0xFFFFFFFFFFFFFFFFLL,
94 0x8000010000000000LL)))
95 return 1;
96
97 if (test__fixsfti(0x1.FFFFFEp+126F, make_ti(0x7FFFFF8000000000LL, 0)))
98 return 1;
99 if (test__fixsfti(0x1.FFFFFCp+126F, make_ti(0x7FFFFF0000000000LL, 0)))
100 return 1;
101
102 if (test__fixsfti(-0x1.FFFFFEp+126F, make_ti(0x8000008000000000LL, 0)))
103 return 1;
104 if (test__fixsfti(-0x1.FFFFFCp+126F, make_ti(0x8000010000000000LL, 0)))
105 return 1;
106
107 #else
108 printf("skipped\n");
109 #endif
110 return 0;
111 }
112