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gerrit-public.fairphone.software / platform / frameworks / compile / libbcc / 2f5dbbca4d50a1718ce1e784bb7a6ed415f9fc7f / . / runtime / test / Unit / floatuntisf_test.c
blob: 668e727e89cf6abc0c25d3b367ff30a89ebc7082 [file] [log] [blame]
Shih-wei Liao77ed6142010-04-07 12:21:42 -0700[diff] [blame]1//===-- floatuntisf.c - Test __floatuntisf --------------------------------===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file tests __floatuntisf for the compiler_rt library.
11//
12//===----------------------------------------------------------------------===//
13
14#if __x86_64
15
16#include "int_lib.h"
17#include <float.h>
18#include <stdio.h>
19
20// Returns: convert a to a float, rounding toward even.
21
22// Assumption: float is a IEEE 32 bit floating point type
23// tu_int is a 128 bit integral type
24
25// seee eeee emmm mmmm mmmm mmmm mmmm mmmm
26
27float __floatuntisf(tu_int a);
28
29int test__floatuntisf(tu_int a, float expected)
30{
31 float x = __floatuntisf(a);
32 if (x != expected)
33 {
34 utwords at;
35 at.all = a;
36 printf("error in __floatuntisf(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(tu_int) == 2*sizeof(du_int)] = {0};
43char assumption_2[sizeof(tu_int)*CHAR_BIT == 128] = {0};
44char assumption_3[sizeof(float)*CHAR_BIT == 32] = {0};
45
46#endif
47
48int main()
49{
50#if __x86_64
51 if (test__floatuntisf(0, 0.0F))
52 return 1;
53
54 if (test__floatuntisf(1, 1.0F))
55 return 1;
56 if (test__floatuntisf(2, 2.0F))
57 return 1;
58 if (test__floatuntisf(20, 20.0F))
59 return 1;
60
61 if (test__floatuntisf(0x7FFFFF8000000000LL, 0x1.FFFFFEp+62F))
62 return 1;
63 if (test__floatuntisf(0x7FFFFF0000000000LL, 0x1.FFFFFCp+62F))
64 return 1;
65
66 if (test__floatuntisf(make_ti(0x8000008000000000LL, 0), 0x1.000001p+127F))
67 return 1;
68 if (test__floatuntisf(make_ti(0x8000000000000800LL, 0), 0x1.0p+127F))
69 return 1;
70 if (test__floatuntisf(make_ti(0x8000010000000000LL, 0), 0x1.000002p+127F))
71 return 1;
72
73 if (test__floatuntisf(make_ti(0x8000000000000000LL, 0), 0x1.000000p+127F))
74 return 1;
75
76 if (test__floatuntisf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50F))
77 return 1;
78
79 if (test__floatuntisf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50F))
80 return 1;
81 if (test__floatuntisf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50F))
82 return 1;
83
84 if (test__floatuntisf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50F))
85 return 1;
86
87 if (test__floatuntisf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50F))
88 return 1;
89 if (test__floatuntisf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50F))
90 return 1;
91 if (test__floatuntisf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50F))
92 return 1;
93
94 if (test__floatuntisf(0xFFFFFFFFFFFFFFFELL, 0x1p+64F))
95 return 1;
96 if (test__floatuntisf(0xFFFFFFFFFFFFFFFFLL, 0x1p+64F))
97 return 1;
98
99 if (test__floatuntisf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50F))
100 return 1;
101
102 if (test__floatuntisf(0x0007FB72EA000000LL, 0x1.FEDCBAp+50F))
103 return 1;
104 if (test__floatuntisf(0x0007FB72EB000000LL, 0x1.FEDCBAp+50F))
105 return 1;
106 if (test__floatuntisf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAp+50F))
107 return 1;
108 if (test__floatuntisf(0x0007FB72EC000000LL, 0x1.FEDCBCp+50F))
109 return 1;
110 if (test__floatuntisf(0x0007FB72E8000001LL, 0x1.FEDCBAp+50F))
111 return 1;
112
113 if (test__floatuntisf(0x0007FB72E6000000LL, 0x1.FEDCBAp+50F))
114 return 1;
115 if (test__floatuntisf(0x0007FB72E7000000LL, 0x1.FEDCBAp+50F))
116 return 1;
117 if (test__floatuntisf(0x0007FB72E7FFFFFFLL, 0x1.FEDCBAp+50F))
118 return 1;
119 if (test__floatuntisf(0x0007FB72E4000001LL, 0x1.FEDCBAp+50F))
120 return 1;
121 if (test__floatuntisf(0x0007FB72E4000000LL, 0x1.FEDCB8p+50F))
122 return 1;
123
124 if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCB90000000000001LL),
125 0x1.FEDCBAp+76F))
126 return 1;
127 if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBA0000000000000LL),
128 0x1.FEDCBAp+76F))
129 return 1;
130 if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBAFFFFFFFFFFFFFLL),
131 0x1.FEDCBAp+76F))
132 return 1;
133 if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBB0000000000000LL),
134 0x1.FEDCBCp+76F))
135 return 1;
136 if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBB0000000000001LL),
137 0x1.FEDCBCp+76F))
138 return 1;
139 if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBBFFFFFFFFFFFFFLL),
140 0x1.FEDCBCp+76F))
141 return 1;
142 if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBC0000000000000LL),
143 0x1.FEDCBCp+76F))
144 return 1;
145 if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBC0000000000001LL),
146 0x1.FEDCBCp+76F))
147 return 1;
148 if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBD0000000000000LL),
149 0x1.FEDCBCp+76F))
150 return 1;
151 if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBD0000000000001LL),
152 0x1.FEDCBEp+76F))
153 return 1;
154 if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBDFFFFFFFFFFFFFLL),
155 0x1.FEDCBEp+76F))
156 return 1;
157 if (test__floatuntisf(make_ti(0x0000000000001FEDLL, 0xCBE0000000000000LL),
158 0x1.FEDCBEp+76F))
159 return 1;
160
161#endif
162 return 0;
163}