[MIParser] Set RegClassOrRegBank during instruction parsing
[llvm-complete.git] / unittests / DebugInfo / CodeView / RandomAccessVisitorTest.cpp
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1 //===- llvm/unittest/DebugInfo/CodeView/RandomAccessVisitorTest.cpp -------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
9 #include "llvm/DebugInfo/CodeView/AppendingTypeTableBuilder.h"
10 #include "llvm/DebugInfo/CodeView/CVTypeVisitor.h"
11 #include "llvm/DebugInfo/CodeView/LazyRandomTypeCollection.h"
12 #include "llvm/DebugInfo/CodeView/TypeRecord.h"
13 #include "llvm/DebugInfo/CodeView/TypeRecordMapping.h"
14 #include "llvm/DebugInfo/CodeView/TypeVisitorCallbacks.h"
15 #include "llvm/DebugInfo/PDB/Native/RawTypes.h"
16 #include "llvm/Support/Allocator.h"
17 #include "llvm/Support/BinaryItemStream.h"
18 #include "llvm/Support/Error.h"
19 #include "llvm/Testing/Support/Error.h"
21 #include "gtest/gtest.h"
23 using namespace llvm;
24 using namespace llvm::codeview;
25 using namespace llvm::pdb;
27 namespace llvm {
28 namespace codeview {
29 inline bool operator==(const ArrayRecord &R1, const ArrayRecord &R2) {
30 if (R1.ElementType != R2.ElementType)
31 return false;
32 if (R1.IndexType != R2.IndexType)
33 return false;
34 if (R1.Name != R2.Name)
35 return false;
36 if (R1.Size != R2.Size)
37 return false;
38 return true;
40 inline bool operator!=(const ArrayRecord &R1, const ArrayRecord &R2) {
41 return !(R1 == R2);
44 inline bool operator==(const CVType &R1, const CVType &R2) {
45 if (R1.RecordData != R2.RecordData)
46 return false;
47 return true;
49 inline bool operator!=(const CVType &R1, const CVType &R2) {
50 return !(R1 == R2);
55 namespace llvm {
56 template <> struct BinaryItemTraits<CVType> {
57 static size_t length(const CVType &Item) { return Item.length(); }
58 static ArrayRef<uint8_t> bytes(const CVType &Item) { return Item.data(); }
62 namespace {
64 class MockCallbacks : public TypeVisitorCallbacks {
65 public:
66 virtual Error visitTypeBegin(CVType &CVR, TypeIndex Index) {
67 Indices.push_back(Index);
68 return Error::success();
70 virtual Error visitKnownRecord(CVType &CVR, ArrayRecord &AR) {
71 VisitedRecords.push_back(AR);
72 RawRecords.push_back(CVR);
73 return Error::success();
76 uint32_t count() const {
77 assert(Indices.size() == RawRecords.size());
78 assert(Indices.size() == VisitedRecords.size());
79 return Indices.size();
81 std::vector<TypeIndex> Indices;
82 std::vector<CVType> RawRecords;
83 std::vector<ArrayRecord> VisitedRecords;
86 class RandomAccessVisitorTest : public testing::Test {
87 public:
88 RandomAccessVisitorTest() {}
90 static void SetUpTestCase() {
91 GlobalState = std::make_unique<GlobalTestState>();
93 AppendingTypeTableBuilder Builder(GlobalState->Allocator);
95 uint32_t Offset = 0;
96 for (int I = 0; I < 11; ++I) {
97 ArrayRecord AR(TypeRecordKind::Array);
98 AR.ElementType = TypeIndex::Int32();
99 AR.IndexType = TypeIndex::UInt32();
100 AR.Size = I;
101 std::string Name;
102 raw_string_ostream Stream(Name);
103 Stream << "Array [" << I << "]";
104 AR.Name = GlobalState->Strings.save(Stream.str());
105 GlobalState->Records.push_back(AR);
106 GlobalState->Indices.push_back(Builder.writeLeafType(AR));
108 CVType Type(Builder.records().back());
109 GlobalState->TypeVector.push_back(Type);
111 GlobalState->AllOffsets.push_back(
112 {GlobalState->Indices.back(), ulittle32_t(Offset)});
113 Offset += Type.length();
116 GlobalState->ItemStream.setItems(GlobalState->TypeVector);
117 GlobalState->TypeArray = VarStreamArray<CVType>(GlobalState->ItemStream);
120 static void TearDownTestCase() { GlobalState.reset(); }
122 void SetUp() override {
123 TestState = std::make_unique<PerTestState>();
126 void TearDown() override { TestState.reset(); }
128 protected:
129 bool ValidateDatabaseRecord(LazyRandomTypeCollection &Types, uint32_t Index) {
130 TypeIndex TI = TypeIndex::fromArrayIndex(Index);
131 if (!Types.contains(TI))
132 return false;
133 if (GlobalState->TypeVector[Index] != Types.getType(TI))
134 return false;
135 return true;
138 bool ValidateVisitedRecord(uint32_t VisitationOrder,
139 uint32_t GlobalArrayIndex) {
140 TypeIndex TI = TypeIndex::fromArrayIndex(GlobalArrayIndex);
141 if (TI != TestState->Callbacks.Indices[VisitationOrder])
142 return false;
144 if (GlobalState->TypeVector[TI.toArrayIndex()] !=
145 TestState->Callbacks.RawRecords[VisitationOrder])
146 return false;
148 if (GlobalState->Records[TI.toArrayIndex()] !=
149 TestState->Callbacks.VisitedRecords[VisitationOrder])
150 return false;
152 return true;
155 struct GlobalTestState {
156 GlobalTestState() : Strings(Allocator), ItemStream(llvm::support::little) {}
158 BumpPtrAllocator Allocator;
159 StringSaver Strings;
161 std::vector<ArrayRecord> Records;
162 std::vector<TypeIndex> Indices;
163 std::vector<TypeIndexOffset> AllOffsets;
164 std::vector<CVType> TypeVector;
165 BinaryItemStream<CVType> ItemStream;
166 VarStreamArray<CVType> TypeArray;
168 MutableBinaryByteStream Stream;
171 struct PerTestState {
172 FixedStreamArray<TypeIndexOffset> Offsets;
174 MockCallbacks Callbacks;
177 FixedStreamArray<TypeIndexOffset>
178 createPartialOffsets(MutableBinaryByteStream &Storage,
179 std::initializer_list<uint32_t> Indices) {
181 uint32_t Count = Indices.size();
182 uint32_t Size = Count * sizeof(TypeIndexOffset);
183 uint8_t *Buffer = GlobalState->Allocator.Allocate<uint8_t>(Size);
184 MutableArrayRef<uint8_t> Bytes(Buffer, Size);
185 Storage = MutableBinaryByteStream(Bytes, support::little);
186 BinaryStreamWriter Writer(Storage);
187 for (const auto I : Indices)
188 consumeError(Writer.writeObject(GlobalState->AllOffsets[I]));
190 BinaryStreamReader Reader(Storage);
191 FixedStreamArray<TypeIndexOffset> Result;
192 consumeError(Reader.readArray(Result, Count));
193 return Result;
196 static std::unique_ptr<GlobalTestState> GlobalState;
197 std::unique_ptr<PerTestState> TestState;
200 std::unique_ptr<RandomAccessVisitorTest::GlobalTestState>
201 RandomAccessVisitorTest::GlobalState;
204 TEST_F(RandomAccessVisitorTest, MultipleVisits) {
205 TestState->Offsets = createPartialOffsets(GlobalState->Stream, {0, 8});
206 LazyRandomTypeCollection Types(GlobalState->TypeArray,
207 GlobalState->TypeVector.size(),
208 TestState->Offsets);
210 std::vector<uint32_t> IndicesToVisit = {5, 5, 5};
212 for (uint32_t I : IndicesToVisit) {
213 TypeIndex TI = TypeIndex::fromArrayIndex(I);
214 CVType T = Types.getType(TI);
215 EXPECT_THAT_ERROR(codeview::visitTypeRecord(T, TI, TestState->Callbacks),
216 Succeeded());
219 // [0,8) should be present
220 EXPECT_EQ(8u, Types.size());
221 for (uint32_t I = 0; I < 8; ++I)
222 EXPECT_TRUE(ValidateDatabaseRecord(Types, I));
224 // 5, 5, 5
225 EXPECT_EQ(3u, TestState->Callbacks.count());
226 for (auto I : enumerate(IndicesToVisit))
227 EXPECT_TRUE(ValidateVisitedRecord(I.index(), I.value()));
230 TEST_F(RandomAccessVisitorTest, DescendingWithinChunk) {
231 // Visit multiple items from the same "chunk" in reverse order. In this
232 // example, it's 7 then 4 then 2. At the end, all records from 0 to 7 should
233 // be known by the database, but only 2, 4, and 7 should have been visited.
234 TestState->Offsets = createPartialOffsets(GlobalState->Stream, {0, 8});
236 std::vector<uint32_t> IndicesToVisit = {7, 4, 2};
238 LazyRandomTypeCollection Types(GlobalState->TypeArray,
239 GlobalState->TypeVector.size(),
240 TestState->Offsets);
241 for (uint32_t I : IndicesToVisit) {
242 TypeIndex TI = TypeIndex::fromArrayIndex(I);
243 CVType T = Types.getType(TI);
244 EXPECT_THAT_ERROR(codeview::visitTypeRecord(T, TI, TestState->Callbacks),
245 Succeeded());
248 // [0, 7]
249 EXPECT_EQ(8u, Types.size());
250 for (uint32_t I = 0; I < 8; ++I)
251 EXPECT_TRUE(ValidateDatabaseRecord(Types, I));
253 // 2, 4, 7
254 EXPECT_EQ(3u, TestState->Callbacks.count());
255 for (auto I : enumerate(IndicesToVisit))
256 EXPECT_TRUE(ValidateVisitedRecord(I.index(), I.value()));
259 TEST_F(RandomAccessVisitorTest, AscendingWithinChunk) {
260 // * Visit multiple items from the same chunk in ascending order, ensuring
261 // that intermediate items are not visited. In the below example, it's
262 // 5 -> 6 -> 7 which come from the [4,8) chunk.
263 TestState->Offsets = createPartialOffsets(GlobalState->Stream, {0, 8});
265 std::vector<uint32_t> IndicesToVisit = {2, 4, 7};
267 LazyRandomTypeCollection Types(GlobalState->TypeArray,
268 GlobalState->TypeVector.size(),
269 TestState->Offsets);
270 for (uint32_t I : IndicesToVisit) {
271 TypeIndex TI = TypeIndex::fromArrayIndex(I);
272 CVType T = Types.getType(TI);
273 EXPECT_THAT_ERROR(codeview::visitTypeRecord(T, TI, TestState->Callbacks),
274 Succeeded());
277 // [0, 7]
278 EXPECT_EQ(8u, Types.size());
279 for (uint32_t I = 0; I < 8; ++I)
280 EXPECT_TRUE(ValidateDatabaseRecord(Types, I));
282 // 2, 4, 7
283 EXPECT_EQ(3u, TestState->Callbacks.count());
284 for (auto &I : enumerate(IndicesToVisit))
285 EXPECT_TRUE(ValidateVisitedRecord(I.index(), I.value()));
288 TEST_F(RandomAccessVisitorTest, StopPrematurelyInChunk) {
289 // * Don't visit the last item in one chunk, ensuring that visitation stops
290 // at the record you specify, and the chunk is only partially visited.
291 // In the below example, this is tested by visiting 0 and 1 but not 2,
292 // all from the [0,3) chunk.
293 TestState->Offsets = createPartialOffsets(GlobalState->Stream, {0, 8});
295 std::vector<uint32_t> IndicesToVisit = {0, 1, 2};
297 LazyRandomTypeCollection Types(GlobalState->TypeArray,
298 GlobalState->TypeVector.size(),
299 TestState->Offsets);
301 for (uint32_t I : IndicesToVisit) {
302 TypeIndex TI = TypeIndex::fromArrayIndex(I);
303 CVType T = Types.getType(TI);
304 EXPECT_THAT_ERROR(codeview::visitTypeRecord(T, TI, TestState->Callbacks),
305 Succeeded());
308 // [0, 8) should be visited.
309 EXPECT_EQ(8u, Types.size());
310 for (uint32_t I = 0; I < 8; ++I)
311 EXPECT_TRUE(ValidateDatabaseRecord(Types, I));
313 // [0, 2]
314 EXPECT_EQ(3u, TestState->Callbacks.count());
315 for (auto I : enumerate(IndicesToVisit))
316 EXPECT_TRUE(ValidateVisitedRecord(I.index(), I.value()));
319 TEST_F(RandomAccessVisitorTest, InnerChunk) {
320 // Test that when a request comes from a chunk in the middle of the partial
321 // offsets array, that items from surrounding chunks are not visited or
322 // added to the database.
323 TestState->Offsets = createPartialOffsets(GlobalState->Stream, {0, 4, 9});
325 std::vector<uint32_t> IndicesToVisit = {5, 7};
327 LazyRandomTypeCollection Types(GlobalState->TypeArray,
328 GlobalState->TypeVector.size(),
329 TestState->Offsets);
331 for (uint32_t I : IndicesToVisit) {
332 TypeIndex TI = TypeIndex::fromArrayIndex(I);
333 CVType T = Types.getType(TI);
334 EXPECT_THAT_ERROR(codeview::visitTypeRecord(T, TI, TestState->Callbacks),
335 Succeeded());
338 // [4, 9)
339 EXPECT_EQ(5u, Types.size());
340 for (uint32_t I = 4; I < 9; ++I)
341 EXPECT_TRUE(ValidateDatabaseRecord(Types, I));
343 // 5, 7
344 EXPECT_EQ(2u, TestState->Callbacks.count());
345 for (auto &I : enumerate(IndicesToVisit))
346 EXPECT_TRUE(ValidateVisitedRecord(I.index(), I.value()));
349 TEST_F(RandomAccessVisitorTest, CrossChunkName) {
350 AppendingTypeTableBuilder Builder(GlobalState->Allocator);
352 // TypeIndex 0
353 ClassRecord Class(TypeRecordKind::Class);
354 Class.Name = "FooClass";
355 Class.Options = ClassOptions::None;
356 Class.MemberCount = 0;
357 Class.Size = 4U;
358 Class.DerivationList = TypeIndex::fromArrayIndex(0);
359 Class.FieldList = TypeIndex::fromArrayIndex(0);
360 Class.VTableShape = TypeIndex::fromArrayIndex(0);
361 TypeIndex IndexZero = Builder.writeLeafType(Class);
363 // TypeIndex 1 refers to type index 0.
364 ModifierRecord Modifier(TypeRecordKind::Modifier);
365 Modifier.ModifiedType = TypeIndex::fromArrayIndex(0);
366 Modifier.Modifiers = ModifierOptions::Const;
367 TypeIndex IndexOne = Builder.writeLeafType(Modifier);
369 // set up a type stream that refers to the above two serialized records.
370 std::vector<CVType> TypeArray = {
371 {Builder.records()[0]},
372 {Builder.records()[1]},
374 BinaryItemStream<CVType> ItemStream(llvm::support::little);
375 ItemStream.setItems(TypeArray);
376 VarStreamArray<CVType> TypeStream(ItemStream);
378 // Figure out the byte offset of the second item.
379 auto ItemOneIter = TypeStream.begin();
380 ++ItemOneIter;
382 // Set up a partial offsets buffer that contains the first and second items
383 // in separate chunks.
384 std::vector<TypeIndexOffset> TIO;
385 TIO.push_back({IndexZero, ulittle32_t(0u)});
386 TIO.push_back({IndexOne, ulittle32_t(ItemOneIter.offset())});
387 ArrayRef<uint8_t> Buffer(reinterpret_cast<const uint8_t *>(TIO.data()),
388 TIO.size() * sizeof(TypeIndexOffset));
390 BinaryStreamReader Reader(Buffer, llvm::support::little);
391 FixedStreamArray<TypeIndexOffset> PartialOffsets;
392 ASSERT_THAT_ERROR(Reader.readArray(PartialOffsets, 2), Succeeded());
394 LazyRandomTypeCollection Types(TypeStream, 2, PartialOffsets);
396 StringRef Name = Types.getTypeName(IndexOne);
397 EXPECT_EQ("const FooClass", Name);