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
21COMPILER_RT_ABI si_int __mulosi4(si_int a, si_int b, int *overflow);
22
23int 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
40int 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}
157