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
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
|
//===- llvm/unittest/ADT/ValueMapTest.cpp - ValueMap unit tests -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/ValueMap.h"
#include "llvm/Constants.h"
#include "llvm/Instructions.h"
#include "llvm/LLVMContext.h"
#include "llvm/ADT/OwningPtr.h"
#include "llvm/Config/llvm-config.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
// Test fixture
template<typename T>
class ValueMapTest : public testing::Test {
protected:
Constant *ConstantV;
OwningPtr<BitCastInst> BitcastV;
OwningPtr<BinaryOperator> AddV;
ValueMapTest() :
ConstantV(ConstantInt::get(Type::getInt32Ty(getGlobalContext()), 0)),
BitcastV(new BitCastInst(ConstantV, Type::getInt32Ty(getGlobalContext()))),
AddV(BinaryOperator::CreateAdd(ConstantV, ConstantV)) {
}
};
// Run everything on Value*, a subtype to make sure that casting works as
// expected, and a const subtype to make sure we cast const correctly.
typedef ::testing::Types<Value, Instruction, const Instruction> KeyTypes;
TYPED_TEST_CASE(ValueMapTest, KeyTypes);
TYPED_TEST(ValueMapTest, Null) {
ValueMap<TypeParam*, int> VM1;
VM1[NULL] = 7;
EXPECT_EQ(7, VM1.lookup(NULL));
}
TYPED_TEST(ValueMapTest, FollowsValue) {
ValueMap<TypeParam*, int> VM;
VM[this->BitcastV.get()] = 7;
EXPECT_EQ(7, VM.lookup(this->BitcastV.get()));
EXPECT_EQ(0, VM.count(this->AddV.get()));
this->BitcastV->replaceAllUsesWith(this->AddV.get());
EXPECT_EQ(7, VM.lookup(this->AddV.get()));
EXPECT_EQ(0, VM.count(this->BitcastV.get()));
this->AddV.reset();
EXPECT_EQ(0, VM.count(this->AddV.get()));
EXPECT_EQ(0, VM.count(this->BitcastV.get()));
EXPECT_EQ(0U, VM.size());
}
TYPED_TEST(ValueMapTest, OperationsWork) {
ValueMap<TypeParam*, int> VM;
ValueMap<TypeParam*, int> VM2(16); (void)VM2;
typename ValueMapConfig<TypeParam*>::ExtraData Data;
ValueMap<TypeParam*, int> VM3(Data, 16); (void)VM3;
EXPECT_TRUE(VM.empty());
VM[this->BitcastV.get()] = 7;
// Find:
typename ValueMap<TypeParam*, int>::iterator I =
VM.find(this->BitcastV.get());
ASSERT_TRUE(I != VM.end());
EXPECT_EQ(this->BitcastV.get(), I->first);
EXPECT_EQ(7, I->second);
EXPECT_TRUE(VM.find(this->AddV.get()) == VM.end());
// Const find:
const ValueMap<TypeParam*, int> &CVM = VM;
typename ValueMap<TypeParam*, int>::const_iterator CI =
CVM.find(this->BitcastV.get());
ASSERT_TRUE(CI != CVM.end());
EXPECT_EQ(this->BitcastV.get(), CI->first);
EXPECT_EQ(7, CI->second);
EXPECT_TRUE(CVM.find(this->AddV.get()) == CVM.end());
// Insert:
std::pair<typename ValueMap<TypeParam*, int>::iterator, bool> InsertResult1 =
VM.insert(std::make_pair(this->AddV.get(), 3));
EXPECT_EQ(this->AddV.get(), InsertResult1.first->first);
EXPECT_EQ(3, InsertResult1.first->second);
EXPECT_TRUE(InsertResult1.second);
EXPECT_EQ(true, VM.count(this->AddV.get()));
std::pair<typename ValueMap<TypeParam*, int>::iterator, bool> InsertResult2 =
VM.insert(std::make_pair(this->AddV.get(), 5));
EXPECT_EQ(this->AddV.get(), InsertResult2.first->first);
EXPECT_EQ(3, InsertResult2.first->second);
EXPECT_FALSE(InsertResult2.second);
// Erase:
VM.erase(InsertResult2.first);
EXPECT_EQ(0U, VM.count(this->AddV.get()));
EXPECT_EQ(1U, VM.count(this->BitcastV.get()));
VM.erase(this->BitcastV.get());
EXPECT_EQ(0U, VM.count(this->BitcastV.get()));
EXPECT_EQ(0U, VM.size());
// Range insert:
SmallVector<std::pair<Instruction*, int>, 2> Elems;
Elems.push_back(std::make_pair(this->AddV.get(), 1));
Elems.push_back(std::make_pair(this->BitcastV.get(), 2));
VM.insert(Elems.begin(), Elems.end());
EXPECT_EQ(1, VM.lookup(this->AddV.get()));
EXPECT_EQ(2, VM.lookup(this->BitcastV.get()));
}
template<typename ExpectedType, typename VarType>
void CompileAssertHasType(VarType) {
typedef char assert[is_same<ExpectedType, VarType>::value ? 1 : -1];
}
TYPED_TEST(ValueMapTest, Iteration) {
ValueMap<TypeParam*, int> VM;
VM[this->BitcastV.get()] = 2;
VM[this->AddV.get()] = 3;
size_t size = 0;
for (typename ValueMap<TypeParam*, int>::iterator I = VM.begin(), E = VM.end();
I != E; ++I) {
++size;
std::pair<TypeParam*, int> value = *I; (void)value;
CompileAssertHasType<TypeParam*>(I->first);
if (I->second == 2) {
EXPECT_EQ(this->BitcastV.get(), I->first);
I->second = 5;
} else if (I->second == 3) {
EXPECT_EQ(this->AddV.get(), I->first);
I->second = 6;
} else {
ADD_FAILURE() << "Iterated through an extra value.";
}
}
EXPECT_EQ(2U, size);
EXPECT_EQ(5, VM[this->BitcastV.get()]);
EXPECT_EQ(6, VM[this->AddV.get()]);
size = 0;
// Cast to const ValueMap to avoid a bug in DenseMap's iterators.
const ValueMap<TypeParam*, int>& CVM = VM;
for (typename ValueMap<TypeParam*, int>::const_iterator I = CVM.begin(),
E = CVM.end(); I != E; ++I) {
++size;
std::pair<TypeParam*, int> value = *I; (void)value;
CompileAssertHasType<TypeParam*>(I->first);
if (I->second == 5) {
EXPECT_EQ(this->BitcastV.get(), I->first);
} else if (I->second == 6) {
EXPECT_EQ(this->AddV.get(), I->first);
} else {
ADD_FAILURE() << "Iterated through an extra value.";
}
}
EXPECT_EQ(2U, size);
}
TYPED_TEST(ValueMapTest, DefaultCollisionBehavior) {
// By default, we overwrite the old value with the replaced value.
ValueMap<TypeParam*, int> VM;
VM[this->BitcastV.get()] = 7;
VM[this->AddV.get()] = 9;
this->BitcastV->replaceAllUsesWith(this->AddV.get());
EXPECT_EQ(0, VM.count(this->BitcastV.get()));
EXPECT_EQ(9, VM.lookup(this->AddV.get()));
}
TYPED_TEST(ValueMapTest, ConfiguredCollisionBehavior) {
// TODO: Implement this when someone needs it.
}
template<typename KeyT>
struct LockMutex : ValueMapConfig<KeyT> {
struct ExtraData {
sys::Mutex *M;
bool *CalledRAUW;
bool *CalledDeleted;
};
static void onRAUW(const ExtraData &Data, KeyT Old, KeyT New) {
*Data.CalledRAUW = true;
EXPECT_FALSE(Data.M->tryacquire()) << "Mutex should already be locked.";
}
static void onDelete(const ExtraData &Data, KeyT Old) {
*Data.CalledDeleted = true;
EXPECT_FALSE(Data.M->tryacquire()) << "Mutex should already be locked.";
}
static sys::Mutex *getMutex(const ExtraData &Data) { return Data.M; }
};
#if LLVM_ENABLE_THREADS
TYPED_TEST(ValueMapTest, LocksMutex) {
sys::Mutex M(false); // Not recursive.
bool CalledRAUW = false, CalledDeleted = false;
typename LockMutex<TypeParam*>::ExtraData Data =
{&M, &CalledRAUW, &CalledDeleted};
ValueMap<TypeParam*, int, LockMutex<TypeParam*> > VM(Data);
VM[this->BitcastV.get()] = 7;
this->BitcastV->replaceAllUsesWith(this->AddV.get());
this->AddV.reset();
EXPECT_TRUE(CalledRAUW);
EXPECT_TRUE(CalledDeleted);
}
#endif
template<typename KeyT>
struct NoFollow : ValueMapConfig<KeyT> {
enum { FollowRAUW = false };
};
TYPED_TEST(ValueMapTest, NoFollowRAUW) {
ValueMap<TypeParam*, int, NoFollow<TypeParam*> > VM;
VM[this->BitcastV.get()] = 7;
EXPECT_EQ(7, VM.lookup(this->BitcastV.get()));
EXPECT_EQ(0, VM.count(this->AddV.get()));
this->BitcastV->replaceAllUsesWith(this->AddV.get());
EXPECT_EQ(7, VM.lookup(this->BitcastV.get()));
EXPECT_EQ(0, VM.lookup(this->AddV.get()));
this->AddV.reset();
EXPECT_EQ(7, VM.lookup(this->BitcastV.get()));
EXPECT_EQ(0, VM.lookup(this->AddV.get()));
this->BitcastV.reset();
EXPECT_EQ(0, VM.lookup(this->BitcastV.get()));
EXPECT_EQ(0, VM.lookup(this->AddV.get()));
EXPECT_EQ(0U, VM.size());
}
template<typename KeyT>
struct CountOps : ValueMapConfig<KeyT> {
struct ExtraData {
int *Deletions;
int *RAUWs;
};
static void onRAUW(const ExtraData &Data, KeyT Old, KeyT New) {
++*Data.RAUWs;
}
static void onDelete(const ExtraData &Data, KeyT Old) {
++*Data.Deletions;
}
};
TYPED_TEST(ValueMapTest, CallsConfig) {
int Deletions = 0, RAUWs = 0;
typename CountOps<TypeParam*>::ExtraData Data = {&Deletions, &RAUWs};
ValueMap<TypeParam*, int, CountOps<TypeParam*> > VM(Data);
VM[this->BitcastV.get()] = 7;
this->BitcastV->replaceAllUsesWith(this->AddV.get());
EXPECT_EQ(0, Deletions);
EXPECT_EQ(1, RAUWs);
this->AddV.reset();
EXPECT_EQ(1, Deletions);
EXPECT_EQ(1, RAUWs);
this->BitcastV.reset();
EXPECT_EQ(1, Deletions);
EXPECT_EQ(1, RAUWs);
}
template<typename KeyT>
struct ModifyingConfig : ValueMapConfig<KeyT> {
// We'll put a pointer here back to the ValueMap this key is in, so
// that we can modify it (and clobber *this) before the ValueMap
// tries to do the same modification. In previous versions of
// ValueMap, that exploded.
typedef ValueMap<KeyT, int, ModifyingConfig<KeyT> > **ExtraData;
static void onRAUW(ExtraData Map, KeyT Old, KeyT New) {
(*Map)->erase(Old);
}
static void onDelete(ExtraData Map, KeyT Old) {
(*Map)->erase(Old);
}
};
TYPED_TEST(ValueMapTest, SurvivesModificationByConfig) {
ValueMap<TypeParam*, int, ModifyingConfig<TypeParam*> > *MapAddress;
ValueMap<TypeParam*, int, ModifyingConfig<TypeParam*> > VM(&MapAddress);
MapAddress = &VM;
// Now the ModifyingConfig can modify the Map inside a callback.
VM[this->BitcastV.get()] = 7;
this->BitcastV->replaceAllUsesWith(this->AddV.get());
EXPECT_FALSE(VM.count(this->BitcastV.get()));
EXPECT_FALSE(VM.count(this->AddV.get()));
VM[this->AddV.get()] = 7;
this->AddV.reset();
EXPECT_FALSE(VM.count(this->AddV.get()));
}
}
|