1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
//===--- Enum.cpp - Enum tests --------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
#include "swift/Runtime/Metadata.h"
#include "swift/Runtime/Enum.h"
#include "gtest/gtest.h"
using namespace swift;
SWIFT_CC(swift)
static unsigned byte_getExtraInhabitantTag(const OpaqueValue *src,
unsigned numXI,
const Metadata *self) {
assert(numXI == 2);
uint8_t byte = *reinterpret_cast<const uint8_t*>(src);
if (byte > 253)
return byte - 253;
return 0;
}
static unsigned byte_getEnumTagSinglePayload(const OpaqueValue *value,
unsigned numEmptyCases,
const Metadata *self) {
return swift_getEnumTagSinglePayloadGeneric(value, numEmptyCases, self,
byte_getExtraInhabitantTag);
}
SWIFT_CC(swift)
static void byte_storeExtraInhabitantTag(OpaqueValue *dest, unsigned tag,
unsigned numXI, const Metadata *self) {
assert(numXI == 2);
assert(tag > 0 && tag <= 2);
*reinterpret_cast<uint8_t*>(dest) = 253 + tag;
}
static void byte_storeEnumTagSinglePayload(OpaqueValue *value,
unsigned tag,
unsigned numEmptyCases,
const Metadata *self) {
swift_storeEnumTagSinglePayloadGeneric(value, tag, numEmptyCases, self,
byte_storeExtraInhabitantTag);
}
// Just use the normal operations for copying i8.
#define byte_initializeBufferWithCopyOfBuffer \
VALUE_WITNESS_SYM(Bi8_).initializeBufferWithCopyOfBuffer
#define byte_destroy VALUE_WITNESS_SYM(Bi8_).destroy
#define byte_initializeWithCopy VALUE_WITNESS_SYM(Bi8_).initializeWithCopy
#define byte_assignWithCopy VALUE_WITNESS_SYM(Bi8_).assignWithCopy
#define byte_initializeWithTake VALUE_WITNESS_SYM(Bi8_).initializeWithTake
#define byte_assignWithTake VALUE_WITNESS_SYM(Bi8_).assignWithTake
// Mock up a value witness table for Builtin.Int8 will 254 and 255 as extra
// inhabitants.
ValueWitnessTable Int8WithExtraInhabitantValueWitness = {
#define WANT_ONLY_REQUIRED_VALUE_WITNESSES
#define VALUE_WITNESS(LOWER_ID, UPPER_ID) byte_##LOWER_ID,
#define DATA_VALUE_WITNESS(LOWER_ID, UPPER_ID, TYPE)
#include "swift/ABI/ValueWitness.def"
VALUE_WITNESS_SYM(Bi8_).size,
VALUE_WITNESS_SYM(Bi8_).stride,
VALUE_WITNESS_SYM(Bi8_).flags,
/*extraInhabitantCount*/ 2
};
FullMetadata<OpaqueMetadata> XI_TMBi8_ = {
{&Int8WithExtraInhabitantValueWitness},
{{MetadataKind::Opaque}}
};
const OpaqueValue *asOpaque(const void *v) {
return reinterpret_cast<const OpaqueValue*>(v);
}
OpaqueValue *asOpaque(void *v) {
return reinterpret_cast<OpaqueValue*>(v);
}
int test_getEnumCaseSinglePayload(std::initializer_list<uint8_t> repr,
const FullOpaqueMetadata &metadata,
unsigned numEmptyCases) {
return metadata.base.vw_getEnumTagSinglePayload(asOpaque(repr.begin()),
numEmptyCases);
}
TEST(EnumTest, getEnumCaseSinglePayload) {
// Test with no XI.
ASSERT_EQ(0, test_getEnumCaseSinglePayload({0, 0}, METADATA_SYM(Bi8_), 512));
ASSERT_EQ(0, test_getEnumCaseSinglePayload({255, 0}, METADATA_SYM(Bi8_), 512));
ASSERT_EQ(1, test_getEnumCaseSinglePayload({0, 1}, METADATA_SYM(Bi8_), 512));
ASSERT_EQ(256, test_getEnumCaseSinglePayload({255, 1}, METADATA_SYM(Bi8_), 512));
ASSERT_EQ(512, test_getEnumCaseSinglePayload({255, 2}, METADATA_SYM(Bi8_), 512));
ASSERT_EQ(0, test_getEnumCaseSinglePayload({0, 0, 0}, METADATA_SYM(Bi8_),
128*1024));
ASSERT_EQ(0, test_getEnumCaseSinglePayload({255, 0, 0}, METADATA_SYM(Bi8_),
128*1024));
#if defined(__BIG_ENDIAN__)
ASSERT_EQ(65535 - 255 + 1, test_getEnumCaseSinglePayload(
{0, 1, 0}, METADATA_SYM(Bi8_), 128 * 1024));
#else
ASSERT_EQ(65535 - 255 + 1, test_getEnumCaseSinglePayload(
{0, 0, 1}, METADATA_SYM(Bi8_), 128 * 1024));
#endif
// Test with XI.
ASSERT_EQ(0, test_getEnumCaseSinglePayload({0}, XI_TMBi8_, 2));
ASSERT_EQ(0, test_getEnumCaseSinglePayload({253}, XI_TMBi8_, 2));
ASSERT_EQ(1, test_getEnumCaseSinglePayload({254}, XI_TMBi8_, 2));
ASSERT_EQ(2, test_getEnumCaseSinglePayload({255}, XI_TMBi8_, 2));
ASSERT_EQ(0, test_getEnumCaseSinglePayload({0, 0}, XI_TMBi8_, 4));
ASSERT_EQ(0, test_getEnumCaseSinglePayload({253, 0}, XI_TMBi8_, 4));
ASSERT_EQ(1, test_getEnumCaseSinglePayload({254, 0}, XI_TMBi8_, 4));
ASSERT_EQ(2, test_getEnumCaseSinglePayload({255, 0}, XI_TMBi8_, 4));
ASSERT_EQ(3, test_getEnumCaseSinglePayload({0, 1}, XI_TMBi8_, 4));
ASSERT_EQ(4, test_getEnumCaseSinglePayload({1, 1}, XI_TMBi8_, 4));
}
bool test_storeEnumTagSinglePayload(std::initializer_list<uint8_t> after,
std::initializer_list<uint8_t> before,
const FullOpaqueMetadata &metadata,
unsigned whichCase,
unsigned numEmptyCases) {
assert(after.size() == before.size());
std::vector<uint8_t> buf;
buf.resize(before.size());
memcpy(buf.data(), before.begin(), before.size());
metadata.base.vw_storeEnumTagSinglePayload(asOpaque(buf.data()),
whichCase,
numEmptyCases);
return memcmp(buf.data(), after.begin(), after.size()) == 0;
}
TEST(EnumTest, storeEnumTagSinglePayload) {
// Test with no XI.
ASSERT_TRUE(test_storeEnumTagSinglePayload({219, 0}, {219, 123},
METADATA_SYM(Bi8_), 0, 512));
ASSERT_TRUE(test_storeEnumTagSinglePayload({0, 1}, {219, 123},
METADATA_SYM(Bi8_), 1, 512));
ASSERT_TRUE(test_storeEnumTagSinglePayload({255, 1}, {219, 123},
METADATA_SYM(Bi8_), 256, 512));
ASSERT_TRUE(test_storeEnumTagSinglePayload({255, 2}, {219, 123},
METADATA_SYM(Bi8_), 512, 512));
ASSERT_TRUE(test_storeEnumTagSinglePayload({219, 0, 0}, {219, 123, 77},
METADATA_SYM(Bi8_), 0, 128*1024));
#if defined(__BIG_ENDIAN__)
ASSERT_TRUE(test_storeEnumTagSinglePayload({0, 0, 1}, {219, 123, 77},
METADATA_SYM(Bi8_), 1, 128*1024));
ASSERT_TRUE(test_storeEnumTagSinglePayload({255, 0, 1}, {219, 123, 77},
METADATA_SYM(Bi8_), 256, 128*1024));
ASSERT_TRUE(test_storeEnumTagSinglePayload({0, 0, 2}, {219, 123, 77},
METADATA_SYM(Bi8_), 257, 128*1024));
ASSERT_TRUE(test_storeEnumTagSinglePayload({255, 2, 0}, {219, 123, 77},
METADATA_SYM(Bi8_), 128*1024, 128*1024));
#else
ASSERT_TRUE(test_storeEnumTagSinglePayload({0, 1, 0}, {219, 123, 77},
METADATA_SYM(Bi8_), 1, 128*1024));
ASSERT_TRUE(test_storeEnumTagSinglePayload({255, 1, 0}, {219, 124, 77},
METADATA_SYM(Bi8_), 256, 128*1024));
ASSERT_TRUE(test_storeEnumTagSinglePayload({0, 2, 0}, {219, 123, 77},
METADATA_SYM(Bi8_), 257, 128*1024));
ASSERT_TRUE(test_storeEnumTagSinglePayload(
{255, 0, 2}, {219, 123, 77}, METADATA_SYM(Bi8_), 128 * 1024, 128 * 1024));
#endif
// Test with XI.
ASSERT_TRUE(test_storeEnumTagSinglePayload({219}, {219},
XI_TMBi8_, 0, 2));
ASSERT_TRUE(test_storeEnumTagSinglePayload({254}, {219},
XI_TMBi8_, 1, 2));
ASSERT_TRUE(test_storeEnumTagSinglePayload({255}, {219},
XI_TMBi8_, 2, 2));
ASSERT_TRUE(test_storeEnumTagSinglePayload({219, 0}, {219, 123},
XI_TMBi8_, 0, 4));
ASSERT_TRUE(test_storeEnumTagSinglePayload({254, 0}, {219, 123},
XI_TMBi8_, 1, 4));
ASSERT_TRUE(test_storeEnumTagSinglePayload({255, 0}, {219, 123},
XI_TMBi8_, 2, 4));
ASSERT_TRUE(test_storeEnumTagSinglePayload({0, 1}, {219, 123},
XI_TMBi8_, 3, 4));
ASSERT_TRUE(test_storeEnumTagSinglePayload({1, 1}, {219, 123},
XI_TMBi8_, 4, 4));
}
|
