1 // Copyright 2016, VIXL authors
2 // All rights reserved.
3 //
4 // Redistribution and use in source and binary forms, with or without
5 // modification, are permitted provided that the following conditions are met:
6 //
7 // * Redistributions of source code must retain the above copyright notice,
8 // this list of conditions and the following disclaimer.
9 // * Redistributions in binary form must reproduce the above copyright notice,
10 // this list of conditions and the following disclaimer in the documentation
11 // and/or other materials provided with the distribution.
12 // * Neither the name of ARM Limited nor the names of its contributors may be
13 // used to endorse or promote products derived from this software without
14 // specific prior written permission.
15 //
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND
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18 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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21 // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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24 // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26
27 #include "test-runner.h"
28
29 #include "utils-vixl.h"
30
31 #define TEST(name) TEST_(API_##name)
32
33 #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
34
35 namespace vixl {
36
37 // Describe the result of a test. Should IsUintN() and IsIntN() return true or
38 // false for N and X?
39 template <typename T>
40 struct UintIntTest {
41 bool is_uintn;
42 bool is_intn;
43 unsigned n;
44 T x;
45 };
46
47 // Test IsUintN() and IsIntN() against various values and integral types.
TEST(IsUint_IsInt)48 TEST(IsUint_IsInt) {
49 UintIntTest<uint32_t> test_little_values_unsigned[] = {
50 {true, true, 1, UINT32_C(0x0)}, {true, false, 1, UINT32_C(0x1)},
51 {false, false, 1, UINT32_C(0x2)}, {false, false, 1, UINT32_C(0x3)},
52 {false, false, 1, UINT32_C(0x4)}, {false, false, 1, UINT32_C(0x5)},
53 {false, false, 1, UINT32_C(0x6)}, {false, false, 1, UINT32_C(0x7)},
54 {false, false, 1, UINT32_C(0x8)}, {false, false, 1, UINT32_C(0x9)},
55 {false, false, 1, UINT32_C(0xa)}, {false, false, 1, UINT32_C(0xb)},
56 {false, false, 1, UINT32_C(0xc)}, {false, false, 1, UINT32_C(0xd)},
57 {false, false, 1, UINT32_C(0xe)}, {false, false, 1, UINT32_C(0xf)},
58
59 {true, true, 2, UINT32_C(0x0)}, {true, true, 2, UINT32_C(0x1)},
60 {true, false, 2, UINT32_C(0x2)}, {true, false, 2, UINT32_C(0x3)},
61 {false, false, 2, UINT32_C(0x4)}, {false, false, 2, UINT32_C(0x5)},
62 {false, false, 2, UINT32_C(0x6)}, {false, false, 2, UINT32_C(0x7)},
63 {false, false, 2, UINT32_C(0x8)}, {false, false, 2, UINT32_C(0x9)},
64 {false, false, 2, UINT32_C(0xa)}, {false, false, 2, UINT32_C(0xb)},
65 {false, false, 2, UINT32_C(0xc)}, {false, false, 2, UINT32_C(0xd)},
66 {false, false, 2, UINT32_C(0xe)}, {false, false, 2, UINT32_C(0xf)},
67 };
68
69 UintIntTest<int32_t> test_little_values_signed[] = {
70 {true, true, 1, INT32_C(0)}, {true, false, 1, INT32_C(1)},
71 {false, false, 1, INT32_C(2)}, {false, false, 1, INT32_C(3)},
72 {false, false, 1, INT32_C(4)}, {false, false, 1, INT32_C(5)},
73 {false, false, 1, INT32_C(6)}, {false, false, 1, INT32_C(7)},
74 {false, true, 1, INT32_C(-1)}, {false, false, 1, INT32_C(-2)},
75 {false, false, 1, INT32_C(-3)}, {false, false, 1, INT32_C(-4)},
76 {false, false, 1, INT32_C(-5)}, {false, false, 1, INT32_C(-6)},
77 {false, false, 1, INT32_C(-7)}, {false, false, 1, INT32_C(-8)},
78
79 {true, true, 2, INT32_C(0)}, {true, true, 2, INT32_C(1)},
80 {true, false, 2, INT32_C(2)}, {true, false, 2, INT32_C(3)},
81 {false, false, 2, INT32_C(4)}, {false, false, 2, INT32_C(5)},
82 {false, false, 2, INT32_C(6)}, {false, false, 2, INT32_C(7)},
83 {false, true, 2, INT32_C(-1)}, {false, true, 2, INT32_C(-2)},
84 {false, false, 2, INT32_C(-3)}, {false, false, 2, INT32_C(-4)},
85 {false, false, 2, INT32_C(-5)}, {false, false, 2, INT32_C(-6)},
86 {false, false, 2, INT32_C(-7)}, {false, false, 2, INT32_C(-8)},
87 };
88
89 UintIntTest<uint32_t> test_u16[] = {
90 {true, true, 16, UINT32_C(0x0)},
91 {true, false, 16, UINT32_C(0xabcd)},
92 {true, false, 16, UINT32_C(0x8000)},
93 {true, false, 16, UINT32_C(0xffff)},
94 {false, false, 16, UINT32_C(0x10000)},
95 {false, false, 16, UINT32_C(0xffff0000)},
96 {false, false, 16, UINT32_C(0xffff8000)},
97 {false, false, 16, UINT32_C(0xffffffff)},
98 };
99
100 UintIntTest<int32_t> test_i16[] = {
101 {true, true, 16, INT32_C(0x0)},
102 {true, false, 16, INT32_C(0xabcd)},
103 {true, false, 16, INT32_C(0x8000)},
104 {true, false, 16, INT32_C(0xffff)},
105 {false, false, 16, INT32_C(0x10000)},
106 {true, true, 16, INT32_C(42)},
107 {false, true, 16, INT32_C(-42)},
108 {false, true, 16, INT32_C(-1)},
109 };
110
111 UintIntTest<uint64_t> test_u32[] = {
112 {true, true, 32, UINT64_C(0x0)},
113 {true, false, 32, UINT64_C(0xabcdabcd)},
114 {true, false, 32, UINT64_C(0x80000000)},
115 {true, false, 32, UINT64_C(0xffffffff)},
116 };
117
118 UintIntTest<int64_t> test_i32[] = {
119 {true, true, 32, INT64_C(0)},
120 {true, true, 32, INT64_C(42)},
121 {false, true, 32, INT64_C(-42)},
122 {false, true, 32, INT64_C(-1)},
123 {true, true, 32, INT64_C(2147483647)}, // (1 << (32 - 1)) - 1
124 {false, true, 32, INT64_C(-2147483648)}, // -(1 << (32 - 1))
125 };
126
127 UintIntTest<uint64_t> test_unsigned_higher_than_32[] = {
128 {false, false, 54, UINT64_C(0xabcdef9012345678)},
129 {true, false, 33, UINT64_C(0x100000000)},
130 {true, false, 62, UINT64_C(0x3fffffffffffffff)},
131 {true, false, 63, UINT64_C(0x7fffffffffffffff)},
132 };
133
134 UintIntTest<int64_t> test_signed_higher_than_32[] = {
135 {true, true, 54, INT64_C(9007199254740991)}, // (1 << (54 - 1)) - 1
136 {true, false, 54, INT64_C(9007199254740992)}, // 1 << (54 - 1)
137 {true, true, 33, INT64_C(4294967295)}, // (1 << (33 - 1) - 1)
138 {false, true, 33, INT64_C(-4294967296)}, // -(1 << (33 - 1))
139 };
140
141 #define TEST_LIST(M) \
142 M(test_little_values_unsigned) \
143 M(test_little_values_signed) \
144 M(test_u16) \
145 M(test_i16) \
146 M(test_u32) \
147 M(test_i32) \
148 M(test_unsigned_higher_than_32) \
149 M(test_signed_higher_than_32)
150
151
152 #define TEST_UINT(test_vector) \
153 for (unsigned i = 0; i < ARRAY_SIZE(test_vector); i++) { \
154 if (test_vector[i].is_uintn) { \
155 VIXL_CHECK(IsUintN(test_vector[i].n, test_vector[i].x)); \
156 } else { \
157 VIXL_CHECK(!IsUintN(test_vector[i].n, test_vector[i].x)); \
158 } \
159 }
160
161 #define TEST_INT(test_vector) \
162 for (unsigned i = 0; i < ARRAY_SIZE(test_vector); i++) { \
163 if (test_vector[i].is_intn) { \
164 VIXL_CHECK(IsIntN(test_vector[i].n, test_vector[i].x)); \
165 } else { \
166 VIXL_CHECK(!IsIntN(test_vector[i].n, test_vector[i].x)); \
167 } \
168 }
169
170 TEST_LIST(TEST_UINT)
171 TEST_LIST(TEST_INT)
172
173 #undef TEST_UINT
174 #undef TEST_INT
175
176 #undef TEST_LIST
177 }
178
179 } // namespace vixl
180