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1 | //===-- mulosi4_test.c - Test __mulosi4 -----------------------------------===// |
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 __mulosi4 for the compiler_rt library. | |
11 | // | |
12 | //===----------------------------------------------------------------------===// | |
13 | ||
14 | #include "int_lib.h" | |
15 | #include <stdio.h> | |
16 | ||
17 | // Returns: a * b | |
18 | ||
19 | // Effects: aborts if a * b overflows | |
20 | ||
92a42be0 | 21 | COMPILER_RT_ABI si_int __mulosi4(si_int a, si_int b, int *overflow); |
1a4d82fc JJ |
22 | |
23 | int test__mulosi4(si_int a, si_int b, si_int expected, int expected_overflow) | |
24 | { | |
25 | int ov; | |
26 | si_int x = __mulosi4(a, b, &ov); | |
27 | if (ov != expected_overflow) | |
28 | printf("error in __mulosi4: overflow=%d expected=%d\n", | |
29 | ov, expected_overflow); | |
30 | else if (!expected_overflow && x != expected) { | |
31 | printf("error in __mulosi4: 0x%X * 0x%X = 0x%X (overflow=%d), " | |
32 | "expected 0x%X (overflow=%d)\n", | |
33 | a, b, x, ov, expected, expected_overflow); | |
34 | return 1; | |
35 | } | |
36 | return 0; | |
37 | } | |
38 | ||
39 | ||
40 | int main() | |
41 | { | |
42 | if (test__mulosi4(0, 0, 0, 0)) | |
43 | return 1; | |
44 | if (test__mulosi4(0, 1, 0, 0)) | |
45 | return 1; | |
46 | if (test__mulosi4(1, 0, 0, 0)) | |
47 | return 1; | |
48 | if (test__mulosi4(0, 10, 0, 0)) | |
49 | return 1; | |
50 | if (test__mulosi4(10, 0, 0, 0)) | |
51 | return 1; | |
52 | if (test__mulosi4(0, 0x1234567, 0, 0)) | |
53 | return 1; | |
54 | if (test__mulosi4(0x1234567, 0, 0, 0)) | |
55 | return 1; | |
56 | ||
57 | if (test__mulosi4(0, -1, 0, 0)) | |
58 | return 1; | |
59 | if (test__mulosi4(-1, 0, 0, 0)) | |
60 | return 1; | |
61 | if (test__mulosi4(0, -10, 0, 0)) | |
62 | return 1; | |
63 | if (test__mulosi4(-10, 0, 0, 0)) | |
64 | return 1; | |
65 | if (test__mulosi4(0, -0x1234567, 0, 0)) | |
66 | return 1; | |
67 | if (test__mulosi4(-0x1234567, 0, 0, 0)) | |
68 | return 1; | |
69 | ||
70 | if (test__mulosi4(1, 1, 1, 0)) | |
71 | return 1; | |
72 | if (test__mulosi4(1, 10, 10, 0)) | |
73 | return 1; | |
74 | if (test__mulosi4(10, 1, 10, 0)) | |
75 | return 1; | |
76 | if (test__mulosi4(1, 0x1234567, 0x1234567, 0)) | |
77 | return 1; | |
78 | if (test__mulosi4(0x1234567, 1, 0x1234567, 0)) | |
79 | return 1; | |
80 | ||
81 | if (test__mulosi4(1, -1, -1, 0)) | |
82 | return 1; | |
83 | if (test__mulosi4(1, -10, -10, 0)) | |
84 | return 1; | |
85 | if (test__mulosi4(-10, 1, -10, 0)) | |
86 | return 1; | |
87 | if (test__mulosi4(1, -0x1234567, -0x1234567, 0)) | |
88 | return 1; | |
89 | if (test__mulosi4(-0x1234567, 1, -0x1234567, 0)) | |
90 | return 1; | |
91 | ||
92 | if (test__mulosi4(0x7FFFFFFF, -2, 0x80000001, 1)) | |
93 | return 1; | |
94 | if (test__mulosi4(-2, 0x7FFFFFFF, 0x80000001, 1)) | |
95 | return 1; | |
96 | if (test__mulosi4(0x7FFFFFFF, -1, 0x80000001, 0)) | |
97 | return 1; | |
98 | if (test__mulosi4(-1, 0x7FFFFFFF, 0x80000001, 0)) | |
99 | return 1; | |
100 | if (test__mulosi4(0x7FFFFFFF, 0, 0, 0)) | |
101 | return 1; | |
102 | if (test__mulosi4(0, 0x7FFFFFFF, 0, 0)) | |
103 | return 1; | |
104 | if (test__mulosi4(0x7FFFFFFF, 1, 0x7FFFFFFF, 0)) | |
105 | return 1; | |
106 | if (test__mulosi4(1, 0x7FFFFFFF, 0x7FFFFFFF, 0)) | |
107 | return 1; | |
108 | if (test__mulosi4(0x7FFFFFFF, 2, 0x80000001, 1)) | |
109 | return 1; | |
110 | if (test__mulosi4(2, 0x7FFFFFFF, 0x80000001, 1)) | |
111 | return 1; | |
112 | ||
113 | if (test__mulosi4(0x80000000, -2, 0x80000000, 1)) | |
114 | return 1; | |
115 | if (test__mulosi4(-2, 0x80000000, 0x80000000, 1)) | |
116 | return 1; | |
117 | if (test__mulosi4(0x80000000, -1, 0x80000000, 1)) | |
118 | return 1; | |
119 | if (test__mulosi4(-1, 0x80000000, 0x80000000, 1)) | |
120 | return 1; | |
121 | if (test__mulosi4(0x80000000, 0, 0, 0)) | |
122 | return 1; | |
123 | if (test__mulosi4(0, 0x80000000, 0, 0)) | |
124 | return 1; | |
125 | if (test__mulosi4(0x80000000, 1, 0x80000000, 0)) | |
126 | return 1; | |
127 | if (test__mulosi4(1, 0x80000000, 0x80000000, 0)) | |
128 | return 1; | |
129 | if (test__mulosi4(0x80000000, 2, 0x80000000, 1)) | |
130 | return 1; | |
131 | if (test__mulosi4(2, 0x80000000, 0x80000000, 1)) | |
132 | return 1; | |
133 | ||
134 | if (test__mulosi4(0x80000001, -2, 0x80000001, 1)) | |
135 | return 1; | |
136 | if (test__mulosi4(-2, 0x80000001, 0x80000001, 1)) | |
137 | return 1; | |
138 | if (test__mulosi4(0x80000001, -1, 0x7FFFFFFF, 0)) | |
139 | return 1; | |
140 | if (test__mulosi4(-1, 0x80000001, 0x7FFFFFFF, 0)) | |
141 | return 1; | |
142 | if (test__mulosi4(0x80000001, 0, 0, 0)) | |
143 | return 1; | |
144 | if (test__mulosi4(0, 0x80000001, 0, 0)) | |
145 | return 1; | |
146 | if (test__mulosi4(0x80000001, 1, 0x80000001, 0)) | |
147 | return 1; | |
148 | if (test__mulosi4(1, 0x80000001, 0x80000001, 0)) | |
149 | return 1; | |
150 | if (test__mulosi4(0x80000001, 2, 0x80000000, 1)) | |
151 | return 1; | |
152 | if (test__mulosi4(2, 0x80000001, 0x80000000, 1)) | |
153 | return 1; | |
154 | ||
155 | return 0; | |
156 | } |