GCC Code Coverage Report

Directory: ../
File: src/irgenerator/GenImplicit.cpp
Date: 2025-02-05 01:09:36
Exec Total Coverage
Lines: 355 407 87.2%
Functions: 20 21 95.2%
Branches: 483 1020 47.4%
Line Branch Exec Source
1 // Copyright (c) 2021-2025 ChilliBits. All rights reserved.
2
3 #include "IRGenerator.h"
4
5 #include <SourceFile.h>
6 #include <ast/ASTNodes.h>
7 #include <ast/Attributes.h>
8 #include <driver/Driver.h>
9 #include <global/GlobalResourceManager.h>
10 #include <model/Function.h>
11 #include <symboltablebuilder/SymbolTableBuilder.h>
12
13 #include <llvm/IR/Module.h>
14
15 namespace spice::compiler {
16
17 // String placeholders for builtin testing output
18 static const char *const TEST_ALL_START_MSG = "[==========] Running %d test(s) from %d source file(s)\n";
19 static const char *const TEST_ALL_END_MSG = "[==========] Ran %d test(s) from %d source file(s)\n";
20 static const char *const TEST_FILE_START_MSG = "[----------] Running %d test(s) from %s\n";
21 static const char *const TEST_FILE_END_MSG = "[----------] Ran %d test(s) from %s\n\n";
22 static const char *const TEST_CASE_RUN_MSG = "[ RUN ] %s\n";
23 static const char *const TEST_CASE_SUCCESS_MSG = "\033[1m\033[32m[ PASSED ]\033[0m\033[22m %s\n";
24 static const char *const TEST_CASE_FAILED_MSG = "\033[1m\033[31m[ FAILED ]\033[0m\033[22m %s\n";
25 static const char *const TEST_CASE_SKIPPED_MSG = "\033[1m\033[33m[ SKIPPED ]\033[0m\033[22m %s\n";
26
27 12 llvm::Value *IRGenerator::doImplicitCast(llvm::Value *src, QualType dstSTy, QualType srcSTy) {
28
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 12 assert(srcSTy != dstSTy); // We only need to cast implicitly, if the types do not match exactly
29
30 // Unpack the pointers until a pointer of another type is met
31 12 size_t loadCounter = 0;
32
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 12 while (srcSTy.isPtr()) {
33 ✗ src = insertLoad(srcSTy.toLLVMType(sourceFile), src);
34 ✗ srcSTy = srcSTy.getContained();
35 ✗ dstSTy = dstSTy.getContained();
36 ✗ loadCounter++;
37 }
38 // GEP or bit-cast
39
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 12 if (dstSTy.isArray() && srcSTy.isArray()) { // Special case that is used for passing arrays as pointer to functions
40
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 12 llvm::Value *indices[2] = {builder.getInt64(0), builder.getInt32(0)};
41
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 12 src = insertInBoundsGEP(srcSTy.toLLVMType(sourceFile), src, indices);
42 } else {
43 ✗ src = insertLoad(srcSTy.toLLVMType(sourceFile), src);
44 ✗ src = builder.CreateBitCast(src, dstSTy.toLLVMType(sourceFile));
45 }
46 // Pack the pointers together again
47
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 12 for (; loadCounter > 0; loadCounter--) {
48 ✗ llvm::Value *newActualArg = insertAlloca(src->getType());
49 ✗ insertStore(src, newActualArg);
50 ✗ src = newActualArg;
51 }
52 12 return src;
53 }
54
55 23460 void IRGenerator::generateScopeCleanup(const StmtLstNode *node) const {
56 // Do not clean up if the block is already terminated
57
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 23460 if (blockAlreadyTerminated)
58 8567 return;
59
60 // Call all dtor functions
61 14893 const auto &[dtorFunctionsToCall, heapVarsToFree] = node->resourcesToCleanup.at(manIdx);
62
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 15787 for (auto [entry, dtor] : dtorFunctionsToCall)
63
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 894 generateCtorOrDtorCall(entry, dtor, {});
64
65 // Deallocate all heap variables that go out of scope and are currently owned
66
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 14896 for (const SymbolTableEntry *entry : heapVarsToFree)
67
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 3 generateDeallocCall(entry->getAddress());
68
69 // Generate lifetime end markers
70
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 14893 if (cliOptions.useLifetimeMarkers) {
71 ✗ for (const SymbolTableEntry *var : currentScope->getVarsGoingOutOfScope()) {
72 ✗ llvm::Value *address = var->getAddress();
73 ✗ if (address == nullptr)
74 ✗ continue;
75 ✗ const uint64_t sizeInBytes = module->getDataLayout().getTypeAllocSize(var->getQualType().toLLVMType(sourceFile));
76 ✗ builder.CreateLifetimeEnd(address, builder.getInt64(sizeInBytes));
77 ✗ }
78 }
79 }
80
81 ✗ llvm::Value *IRGenerator::generateFctCall(const Function *fct, const std::vector<llvm::Value *> &args) const {
82 // Retrieve metadata for the function
83 ✗ const std::string mangledName = fct->getMangledName();
84
85 // Function is not defined in the current module -> declare it
86 ✗ if (!module->getFunction(mangledName)) {
87 ✗ std::vector<llvm::Type *> paramTypes;
88 ✗ for (const llvm::Value *argValue : args)
89 ✗ paramTypes.push_back(argValue->getType());
90 ✗ llvm::Type *returnType = fct->returnType.toLLVMType(sourceFile);
91 ✗ llvm::FunctionType *fctType = llvm::FunctionType::get(returnType, paramTypes, false);
92 ✗ module->getOrInsertFunction(mangledName, fctType);
93 ✗ }
94
95 // Get callee function
96 ✗ llvm::Function *callee = module->getFunction(mangledName);
97 ✗ assert(callee != nullptr);
98
99 // Generate function call
100 ✗ return builder.CreateCall(callee, args);
101 ✗ }
102
103 1606 void IRGenerator::generateProcCall(const Function *proc, std::vector<llvm::Value *> &args) const {
104 // Retrieve metadata for the function
105
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 1606 const std::string mangledName = proc->getMangledName();
106
107 // Function is not defined in the current module -> declare it
108
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 1606 if (!module->getFunction(mangledName)) {
109 339 std::vector<llvm::Type *> paramTypes;
110
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 753 for (const llvm::Value *argValue : args)
111
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 414 paramTypes.push_back(argValue->getType());
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 339 llvm::FunctionType *fctType = llvm::FunctionType::get(builder.getVoidTy(), paramTypes, false);
113
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 339 module->getOrInsertFunction(mangledName, fctType);
114 339 }
115
116 // Get callee function
117
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 1606 llvm::Function *callee = module->getFunction(mangledName);
118
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 1606 assert(callee != nullptr);
119
120 // Generate function call
121
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 1606 builder.CreateCall(callee, args);
122 1606 }
123
124 1472 void IRGenerator::generateCtorOrDtorCall(const SymbolTableEntry *entry, const Function *ctorOrDtor,
125 const std::vector<llvm::Value *> &args) const {
126 // Retrieve address of the struct variable. For fields this is the 'this' variable, otherwise use the normal address
127 llvm::Value *structAddr;
128
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 1472 if (entry->isField()) {
129 // Take 'this' var as base pointer
130
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 1338 const SymbolTableEntry *thisVar = currentScope->lookupStrict(THIS_VARIABLE_NAME);
131
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 446 assert(thisVar != nullptr);
132
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 446 assert(thisVar->getQualType().isPtr() && thisVar->getQualType().getContained().is(TY_STRUCT));
133
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 446 llvm::Type *thisType = thisVar->getQualType().getContained().toLLVMType(sourceFile);
134
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 446 llvm::Value *thisPtr = insertLoad(builder.getPtrTy(), thisVar->getAddress());
135 // Add field offset
136
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 446 llvm::Value *indices[2] = {builder.getInt64(0), builder.getInt32(entry->orderIndex)};
137
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 446 structAddr = insertInBoundsGEP(thisType, thisPtr, indices);
138 } else {
139 1026 structAddr = entry->getAddress();
140 // For optional parameter initializers we need this exception
141
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 1026 if (!structAddr)
142 5 return;
143 }
144
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 1467 assert(structAddr != nullptr);
145 1467 generateCtorOrDtorCall(structAddr, ctorOrDtor, args);
146 }
147
148 1606 void IRGenerator::generateCtorOrDtorCall(llvm::Value *structAddr, const Function *ctorOrDtor,
149 const std::vector<llvm::Value *> &args) const {
150 // Build parameter list
151
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 3212 std::vector argValues = {structAddr};
152
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 1606 argValues.insert(argValues.end(), args.begin(), args.end());
153
154 // Generate function call
155
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 1606 generateProcCall(ctorOrDtor, argValues);
156 1606 }
157
158 57 void IRGenerator::generateDeallocCall(llvm::Value *variableAddress) const {
159 // Abort if the address is not set. This can happen when leaving the scope of a dtor, which already freed the heap memory
160
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 57 if (!variableAddress)
161 1 return;
162
163 // In case of string runtime, call free manually. Otherwise, use the memory_rt implementation of sDealloc()
164
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 112 if (sourceFile->isStringRT()) {
165 ✗ llvm::Function *freeFct = stdFunctionManager.getFreeFct();
166 ✗ builder.CreateCall(freeFct, variableAddress);
167 } else {
168 56 llvm::Function *deallocFct = stdFunctionManager.getDeallocBytePtrRefFct();
169
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 56 builder.CreateCall(deallocFct, variableAddress);
170 }
171 }
172
173 2 llvm::Function *IRGenerator::generateImplicitFunction(const std::function<void()> &generateBody, const Function *spiceFunc) {
174 // Only focus on method procedures
175
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 2 const ASTNode *node = spiceFunc->entry->declNode;
176
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 2 assert(spiceFunc->isFunction());
177
178 // Only generate if used
179
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 2 if (!spiceFunc->used)
180 ✗ return nullptr;
181
182 // Retrieve return type
183
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 2 llvm::Type *returnType = spiceFunc->returnType.toLLVMType(sourceFile);
184
185 // Get 'this' entry
186 2 std::vector<llvm::Type *> paramTypes;
187
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 2 SymbolTableEntry *thisEntry = nullptr;
188
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 2 if (spiceFunc->isMethod()) {
189 ✗ thisEntry = spiceFunc->bodyScope->lookupStrict(THIS_VARIABLE_NAME);
190 ✗ assert(thisEntry != nullptr);
191 ✗ paramTypes.push_back(builder.getPtrTy());
192 }
193
194 // Get parameter types
195
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 2 for (const auto &[qualType, isOptional] : spiceFunc->paramList) {
196 ✗ assert(!isOptional);
197 ✗ paramTypes.push_back(qualType.toLLVMType(sourceFile));
198 }
199
200 // Get function linkage
201
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 2 const bool isPublic = spiceFunc->entry->getQualType().isPublic();
202
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 2 const llvm::GlobalValue::LinkageTypes linkage = isPublic ? llvm::Function::ExternalLinkage : llvm::Function::PrivateLinkage;
203
204 // Create function
205
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 2 const std::string mangledName = spiceFunc->getMangledName();
206
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 2 llvm::FunctionType *fctType = llvm::FunctionType::get(returnType, paramTypes, false);
207
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 2 llvm::Function *fct = llvm::Function::Create(fctType, llvm::Function::ExternalLinkage, mangledName, module);
208
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 2 fct->setLinkage(linkage);
209
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 2 fct->setDoesNotRecurse();
210
211 // Set attributes to 'this' param
212
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 2 if (spiceFunc->isMethod()) {
213 ✗ fct->addParamAttr(0, llvm::Attribute::NoUndef);
214 ✗ fct->addParamAttr(0, llvm::Attribute::NonNull);
215 ✗ assert(thisEntry != nullptr);
216 ✗ llvm::Type *structType = thisEntry->getQualType().getContained().toLLVMType(sourceFile);
217 ✗ assert(structType != nullptr);
218 ✗ fct->addDereferenceableParamAttr(0, module->getDataLayout().getTypeStoreSize(structType));
219 ✗ fct->addParamAttr(0, llvm::Attribute::getWithAlignment(context, module->getDataLayout().getABITypeAlign(structType)));
220 }
221
222 // Add debug info
223
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 2 diGenerator.generateFunctionDebugInfo(fct, spiceFunc);
224
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 2 if (node != nullptr)
225 ✗ diGenerator.setSourceLocation(node);
226
227 // Change to body scope
228
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 2 changeToScope(spiceFunc->getSignature(false), ScopeType::FUNC_PROC_BODY);
229
230 // Create entry block
231
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 2 llvm::BasicBlock *bEntry = createBlock();
232
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 2 switchToBlock(bEntry, fct);
233
234 // Reset alloca insert markers to this block
235 2 allocaInsertBlock = bEntry;
236
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 2 allocaInsertInst = nullptr;
237
238 // Store first argument to 'this' symbol
239
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 2 if (spiceFunc->isMethod()) {
240 ✗ assert(thisEntry != nullptr);
241 // Allocate space for the parameter
242 ✗ llvm::Value *thisAddress = insertAlloca(paramTypes.front(), THIS_VARIABLE_NAME);
243 // Update the symbol table entry
244 ✗ thisEntry->updateAddress(thisAddress);
245 // Store the value at the new address
246 ✗ insertStore(fct->arg_begin(), thisAddress);
247 // Generate debug info
248 ✗ diGenerator.generateLocalVarDebugInfo(THIS_VARIABLE_NAME, thisAddress, 1);
249 }
250
251 // Generate body
252
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 2 generateBody();
253
254 // Conclude debug info for function
255
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 2 diGenerator.concludeFunctionDebugInfo();
256
257 // Verify function
258 // Use the code location of the declaration node if available. Otherwise, (e.g. in case of test main) use an artificial code loc
259
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 2 const CodeLoc codeLoc = node != nullptr ? node->codeLoc : CodeLoc(1, 1, sourceFile);
260
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 2 verifyFunction(fct, codeLoc);
261
262 // Change to parent scope
263
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 2 changeToParentScope(ScopeType::FUNC_PROC_BODY);
264
265 2 return fct;
266 2 }
267
268 207 llvm::Function *IRGenerator::generateImplicitProcedure(const std::function<void()> &generateBody, const Function *spiceProc) {
269 // Only focus on method procedures
270 207 const ASTNode *node = spiceProc->entry->declNode;
271
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 207 assert(node != nullptr);
272
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 207 assert(spiceProc->isProcedure());
273
274 // Only generate if used
275
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 207 if (!spiceProc->used)
276 66 return nullptr;
277
278 // Get 'this' entry
279 141 std::vector<llvm::Type *> paramTypes;
280
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 141 SymbolTableEntry *thisEntry = nullptr;
281
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 141 if (spiceProc->isMethod()) {
282
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 423 thisEntry = spiceProc->bodyScope->lookupStrict(THIS_VARIABLE_NAME);
283
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 141 assert(thisEntry != nullptr);
284
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 141 paramTypes.push_back(builder.getPtrTy());
285 }
286
287 // Get parameter types
288
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 168 for (const auto &[qualType, isOptional] : spiceProc->paramList) {
289
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 27 assert(!isOptional);
290
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 27 paramTypes.push_back(qualType.toLLVMType(sourceFile));
291 }
292
293 // Get function linkage
294
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 141 const bool isPublic = spiceProc->entry->getQualType().isPublic();
295
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 141 const llvm::GlobalValue::LinkageTypes linkage = isPublic ? llvm::Function::ExternalLinkage : llvm::Function::PrivateLinkage;
296
297 // Create function
298
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 141 const std::string mangledName = spiceProc->getMangledName();
299
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 141 llvm::FunctionType *fctType = llvm::FunctionType::get(builder.getVoidTy(), paramTypes, false);
300
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 141 llvm::Function *fct = llvm::Function::Create(fctType, llvm::Function::ExternalLinkage, mangledName, module);
301
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 141 fct->setLinkage(linkage);
302
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 141 fct->setDoesNotRecurse();
303
304 // Set attributes to 'this' param
305
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 141 if (spiceProc->isMethod()) {
306
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 141 fct->addParamAttr(0, llvm::Attribute::NoUndef);
307
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 141 fct->addParamAttr(0, llvm::Attribute::NonNull);
308
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 141 assert(thisEntry != nullptr);
309
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 141 llvm::Type *structType = thisEntry->getQualType().getContained().toLLVMType(sourceFile);
310
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 141 assert(structType != nullptr);
311
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 141 fct->addDereferenceableParamAttr(0, module->getDataLayout().getTypeStoreSize(structType));
312
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 141 fct->addParamAttr(0, llvm::Attribute::getWithAlignment(context, module->getDataLayout().getABITypeAlign(structType)));
313 }
314
315 // Add debug info
316
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 141 diGenerator.generateFunctionDebugInfo(fct, spiceProc);
317
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 141 diGenerator.setSourceLocation(node);
318
319 // Change to body scope
320
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 141 changeToScope(spiceProc->getSignature(false), ScopeType::FUNC_PROC_BODY);
321
322 // Create entry block
323
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 141 llvm::BasicBlock *bEntry = createBlock();
324
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 141 switchToBlock(bEntry, fct);
325
326 // Reset alloca insert markers to this block
327 141 allocaInsertBlock = bEntry;
328
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 141 allocaInsertInst = nullptr;
329
330 // Store first argument to 'this' symbol
331
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 141 if (spiceProc->isMethod()) {
332
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 141 assert(thisEntry != nullptr);
333 // Allocate space for the parameter
334
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 141 llvm::Value *thisAddress = insertAlloca(paramTypes.front(), THIS_VARIABLE_NAME);
335 // Update the symbol table entry
336
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 141 thisEntry->updateAddress(thisAddress);
337 // Store the value at the new address
338
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 141 insertStore(fct->arg_begin(), thisAddress);
339 // Generate debug info
340
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 423 diGenerator.generateLocalVarDebugInfo(THIS_VARIABLE_NAME, thisAddress, 1);
341 }
342
343 // Generate body
344
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 141 generateBody();
345
346 // Create return instruction
347
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 141 builder.CreateRetVoid();
348
349 // Conclude debug info for function
350
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 141 diGenerator.concludeFunctionDebugInfo();
351
352 // Verify function
353
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 141 verifyFunction(fct, node->codeLoc);
354
355 // Change to parent scope
356
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 141 changeToParentScope(ScopeType::FUNC_PROC_BODY);
357
358 141 return fct;
359 141 }
360
361 1082 void IRGenerator::generateCtorBodyPreamble(Scope *bodyScope) {
362 // Retrieve struct scope
363 1082 Scope *structScope = bodyScope->parent;
364
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 1082 assert(structScope != nullptr);
365
366 // Get struct address
367
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 3246 const SymbolTableEntry *thisEntry = bodyScope->lookupStrict(THIS_VARIABLE_NAME);
368
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 1082 assert(thisEntry != nullptr);
369
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 1082 llvm::Value *thisPtrPtr = thisEntry->getAddress();
370
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 1082 assert(thisPtrPtr != nullptr);
371 1082 llvm::Value *thisPtr = nullptr;
372
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 1082 const QualType structSymbolType = thisEntry->getQualType().getBase();
373
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 1082 llvm::Type *structType = structSymbolType.toLLVMType(sourceFile);
374
375 // Store VTable to first struct field if required
376
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 1082 const Struct *spiceStruct = structSymbolType.getStruct(nullptr);
377
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 1082 assert(spiceStruct != nullptr);
378
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 1082 if (spiceStruct->vTableData.vtable != nullptr) {
379
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 192 assert(spiceStruct->vTableData.vtableType != nullptr);
380 // Store VTable to field address at index 0
381
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 192 thisPtr = insertLoad(builder.getPtrTy(), thisPtrPtr);
382
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 192 llvm::Value *indices[3] = {builder.getInt64(0), builder.getInt32(0), builder.getInt32(2)};
383
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 192 llvm::Value *gepResult = insertInBoundsGEP(spiceStruct->vTableData.vtableType, spiceStruct->vTableData.vtable, indices);
384
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 192 insertStore(gepResult, thisPtr);
385 }
386
387
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 1082 const size_t fieldCount = structScope->getFieldCount();
388
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 3882 for (size_t i = 0; i < fieldCount; i++) {
389
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 2800 const SymbolTableEntry *fieldSymbol = structScope->lookupField(i);
390
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 2800 assert(fieldSymbol != nullptr && fieldSymbol->isField());
391
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 2800 if (fieldSymbol->isImplicitField)
392 154 continue;
393
394 // Call ctor for struct fields
395
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 2646 const QualType &fieldType = fieldSymbol->getQualType();
396
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 2646 const auto fieldNode = spice_pointer_cast<FieldNode *>(fieldSymbol->declNode);
397
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 2646 if (fieldType.is(TY_STRUCT)) {
398 // Lookup ctor function and call if available
399
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 349 Scope *matchScope = fieldType.getBodyScope();
400
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 1047 if (const Function *ctorFunction = FunctionManager::lookup(matchScope, CTOR_FUNCTION_NAME, fieldType, {}, false))
401
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 301 generateCtorOrDtorCall(fieldSymbol, ctorFunction, {});
402
403 349 continue;
404 349 }
405
406 // Store default field values
407
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 2297 if (fieldNode->defaultValue != nullptr || cliOptions.buildMode == DEBUG) {
408 // Retrieve field address
409
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 2297 if (!thisPtr)
410
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 1640 thisPtr = insertLoad(builder.getPtrTy(), thisPtrPtr);
411
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 2297 llvm::Value *indices[2] = {builder.getInt64(0), builder.getInt32(i)};
412
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 2297 llvm::Value *fieldAddress = insertInBoundsGEP(structType, thisPtr, indices);
413 // Retrieve default value
414 llvm::Value *value;
415
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 2297 if (fieldNode->defaultValue != nullptr) {
416 // To resolve the default value, we need to temporarily change to the manifestation of the current struct instantiation
417 240 const size_t oldManIdx = manIdx; // Save manifestation index
418 240 manIdx = spiceStruct->manifestationIndex;
419
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 240 value = resolveValue(fieldNode->defaultValue);
420 240 manIdx = oldManIdx; // Restore manifestation index
421 } else {
422
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 2057 assert(cliOptions.buildMode == DEBUG);
423
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 2057 value = getDefaultValueForSymbolType(fieldType);
424 }
425 // Store default value
426
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 2297 insertStore(value, fieldAddress);
427 }
428 }
429 1082 }
430
431 29 void IRGenerator::generateDefaultCtor(const Function *ctorFunction) {
432
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 29 assert(ctorFunction->implicitDefault && ctorFunction->name == CTOR_FUNCTION_NAME);
433 54 const std::function<void()> generateBody = [&] { generateCtorBodyPreamble(ctorFunction->bodyScope); };
434
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 29 generateImplicitProcedure(generateBody, ctorFunction);
435 29 }
436
437 27 void IRGenerator::generateCopyCtorBodyPreamble(const Function *copyCtorFunction) {
438 // Retrieve struct scope
439 27 Scope *structScope = copyCtorFunction->bodyScope->parent;
440
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 27 assert(structScope != nullptr);
441
442 // Get struct address
443
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 81 const SymbolTableEntry *thisEntry = copyCtorFunction->bodyScope->lookupStrict(THIS_VARIABLE_NAME);
444
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 27 assert(thisEntry != nullptr);
445 27 llvm::Value *thisPtrPtr = thisEntry->getAddress();
446
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 27 assert(thisPtrPtr != nullptr);
447 27 llvm::Value *thisPtr = nullptr;
448
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 27 llvm::Type *structType = thisEntry->getQualType().getBase().toLLVMType(sourceFile);
449
450 // Retrieve the value of the original struct, which is the only function parameter
451 27 llvm::Value *originalThisPtr = builder.GetInsertBlock()->getParent()->getArg(1);
452
453 27 const size_t fieldCount = structScope->getFieldCount();
454
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 145 for (size_t i = 0; i < fieldCount; i++) {
455
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 118 const SymbolTableEntry *fieldSymbol = structScope->lookupField(i);
456
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 118 assert(fieldSymbol != nullptr && fieldSymbol->isField());
457
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 118 if (fieldSymbol->isImplicitField)
458 70 continue;
459
460 // Retrieve the address of the original field (copy source)
461
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 115 llvm::Value *indices[2] = {builder.getInt64(0), builder.getInt32(i)};
462
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 115 llvm::Value *originalFieldAddress = insertInBoundsGEP(structType, originalThisPtr, indices);
463
464
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 115 const QualType &fieldType = fieldSymbol->getQualType();
465
466 // Call copy ctor for struct fields
467
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 115 if (fieldType.is(TY_STRUCT) && !fieldType.isTriviallyCopyable(nullptr)) {
468 // Lookup copy ctor function and call if available
469
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 63 Scope *matchScope = fieldType.getBodyScope();
470
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 189 const ArgList args = {{fieldType.toConstRef(nullptr), false /* we have the field as storage */}};
471
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 63 const Function *copyCtor = FunctionManager::lookup(matchScope, CTOR_FUNCTION_NAME, fieldType, args, false);
472
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 63 assert(copyCtor != nullptr);
473
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 126 generateCtorOrDtorCall(fieldSymbol, copyCtor, {originalFieldAddress});
474 63 continue;
475 63 }
476
477 // Retrieve the address of the new field (copy dest)
478
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 52 if (!thisPtr)
479
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 36 thisPtr = insertLoad(builder.getPtrTy(), thisPtrPtr);
480
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 52 llvm::Value *fieldAddress = insertInBoundsGEP(structType, thisPtr, indices);
481
482 // For owning heap fields, copy the underlying heap storage
483
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 52 if (fieldType.isHeap()) {
484
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 4 assert(fieldType.isPtr());
485
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 4 llvm::Type *pointeeType = fieldType.getContained().toLLVMType(sourceFile);
486
487 // Retrieve original heap address
488
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 8 llvm::Value *originalHeapAddress = insertLoad(builder.getPtrTy(), originalFieldAddress);
489
490 // Insert check for nullptr
491
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 8 llvm::BasicBlock *bThen = createBlock("nullptrcheck.then");
492
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 4 llvm::BasicBlock *bExit = createBlock("nullptrcheck.exit");
493
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 4 llvm::Value *condValue = builder.CreateICmpNE(originalHeapAddress, llvm::Constant::getNullValue(builder.getPtrTy()));
494
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 4 insertCondJump(condValue, bThen, bExit);
495
496 // Fill then block
497
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 4 switchToBlock(bThen);
498
499 // Allocate new space on the heap
500
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 4 llvm::Function *unsafeAllocFct = stdFunctionManager.getAllocUnsafeLongFct();
501
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 4 const size_t typeSizeInBytes = module->getDataLayout().getTypeSizeInBits(pointeeType) / 8;
502
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 4 llvm::ConstantInt *typeSize = builder.getInt64(typeSizeInBytes);
503
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 4 llvm::Value *newHeapAddress = builder.CreateCall(unsafeAllocFct, {typeSize});
504
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 4 insertStore(newHeapAddress, fieldAddress);
505
506 // Copy data from the old heap storage to the new one
507
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 4 generateShallowCopy(originalHeapAddress, pointeeType, newHeapAddress, false);
508
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 4 insertJump(bExit);
509
510 // Switch to exit block
511
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 4 switchToBlock(bExit);
512
513 4 continue;
514 4 }
515
516 // Shallow copy
517
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 48 llvm::Type *type = fieldType.toLLVMType(sourceFile);
518
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 48 generateShallowCopy(originalFieldAddress, type, fieldAddress, false);
519 }
520 27 }
521
522 87 void IRGenerator::generateDefaultCopyCtor(const Function *copyCtorFunction) {
523
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 87 assert(copyCtorFunction->implicitDefault && copyCtorFunction->name == CTOR_FUNCTION_NAME);
524 114 const std::function<void()> generateBody = [&] { generateCopyCtorBodyPreamble(copyCtorFunction); };
525
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 87 generateImplicitProcedure(generateBody, copyCtorFunction);
526 87 }
527
528 89 void IRGenerator::generateDtorBodyPreamble(const Function *dtorFunction) const {
529 // Retrieve struct scope
530 89 Scope *structScope = dtorFunction->bodyScope->parent;
531
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 89 assert(structScope != nullptr);
532
533 // Get struct address
534
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 267 const SymbolTableEntry *thisEntry = dtorFunction->bodyScope->lookupStrict(THIS_VARIABLE_NAME);
535
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 89 assert(thisEntry != nullptr);
536 89 llvm::Value *thisPtrPtr = thisEntry->getAddress();
537
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 89 assert(thisPtrPtr != nullptr);
538 89 llvm::Value *thisPtr = nullptr;
539
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 89 llvm::Type *structType = thisEntry->getQualType().getBase().toLLVMType(sourceFile);
540
541 89 const size_t fieldCount = structScope->getFieldCount();
542
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 428 for (size_t i = 0; i < fieldCount; i++) {
543
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 339 const SymbolTableEntry *fieldSymbol = structScope->lookupField(i);
544
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 339 assert(fieldSymbol != nullptr && fieldSymbol->isField());
545
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 339 if (fieldSymbol->isImplicitField)
546 45 continue;
547
548 // Call dtor for struct fields
549 294 const QualType &fieldType = fieldSymbol->getQualType();
550
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 294 if (fieldType.is(TY_STRUCT)) {
551 // Lookup dtor function and generate call if found
552
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 264 if (const Function *dtorFct = FunctionManager::lookup(fieldType.getBodyScope(), DTOR_FUNCTION_NAME, fieldType, {}, false))
553
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 82 generateCtorOrDtorCall(fieldSymbol, dtorFct, {});
554 88 continue;
555 88 }
556
557 // Deallocate fields, that are stored on the heap
558
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 206 if (fieldType.isHeap()) {
559 // Retrieve field address
560
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 54 if (!thisPtr)
561
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 100 thisPtr = insertLoad(builder.getPtrTy(), thisPtrPtr);
562
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 54 llvm::Value *indices[2] = {builder.getInt64(0), builder.getInt32(i)};
563
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 54 llvm::Value *fieldAddress = insertInBoundsGEP(structType, thisPtr, indices);
564 // Call dealloc function
565
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 54 generateDeallocCall(fieldAddress);
566 }
567 }
568 89 }
569
570 91 void IRGenerator::generateDefaultDtor(const Function *dtorFunction) {
571
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 91 assert(dtorFunction->implicitDefault && dtorFunction->name == DTOR_FUNCTION_NAME);
572 180 const std::function<void()> generateBody = [&] { generateDtorBodyPreamble(dtorFunction); };
573
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 91 generateImplicitProcedure(generateBody, dtorFunction);
574 91 }
575
576 2 void IRGenerator::generateTestMain() {
577 // Collect all test functions
578 2 std::vector<const std::vector<const Function *> *> tests;
579
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 5 for (const auto &sourceFile : resourceManager.sourceFiles | std::views::values)
580
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 3 if (!sourceFile->testFunctions.empty())
581
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 3 tests.push_back(&sourceFile->testFunctions);
582
583 // Prepare printf function
584
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 2 llvm::Function *printfFct = stdFunctionManager.getPrintfFct();
585
586 // Prepare success and error messages
587
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 8 llvm::Constant *allStartMsg = createGlobalStringConst("allStartMsg", TEST_ALL_START_MSG, *rootScope->codeLoc);
588
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 8 llvm::Constant *allEndMsg = createGlobalStringConst("allEndMsg", TEST_ALL_END_MSG, *rootScope->codeLoc);
589
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 8 llvm::Constant *fileStartMsg = createGlobalStringConst("fileStartMsg", TEST_FILE_START_MSG, *rootScope->codeLoc);
590
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 8 llvm::Constant *fileEndMsg = createGlobalStringConst("fileEndMsg", TEST_FILE_END_MSG, *rootScope->codeLoc);
591
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 8 llvm::Constant *runMsg = createGlobalStringConst("runMsg", TEST_CASE_RUN_MSG, *rootScope->codeLoc);
592
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 8 llvm::Constant *successMsg = createGlobalStringConst("successMsg", TEST_CASE_SUCCESS_MSG, *rootScope->codeLoc);
593
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 8 llvm::Constant *errorMsg = createGlobalStringConst("errorMsg", TEST_CASE_FAILED_MSG, *rootScope->codeLoc);
594
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 8 llvm::Constant *skippedMsg = createGlobalStringConst("skippedMsg", TEST_CASE_SKIPPED_MSG, *rootScope->codeLoc);
595
596 // Prepare entry for test main
597
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 2 QualType functionType(TY_FUNCTION);
598
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 2 functionType.setQualifiers(TypeQualifiers::of(TY_FUNCTION));
599
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 2 functionType.makePublic();
600
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 4 SymbolTableEntry entry(MAIN_FUNCTION_NAME, functionType, rootScope, nullptr, 0, false);
601
602 // Prepare test main function
603
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 6 Function testMain(MAIN_FUNCTION_NAME, &entry, QualType(TY_DYN), QualType(TY_INT), {}, {}, nullptr);
604 2 testMain.used = true; // Mark as used to prevent removal
605 2 testMain.implicitDefault = true;
606 2 testMain.mangleFunctionName = false;
607
608 // Prepare scope
609
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 2 rootScope->createChildScope(testMain.getSignature(false), ScopeType::FUNC_PROC_BODY, nullptr);
610
611 // Generate
612 ✗ const std::function<void()> generateBody = [&] {
613 // Prepare result variable
614
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 2 llvm::Type *i32Ty = builder.getInt32Ty();
615
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 4 llvm::Value *overallResult = insertAlloca(i32Ty, RETURN_VARIABLE_NAME);
616
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 2 insertStore(builder.getTrue(), overallResult);
617
618 // Print start message
619 3 const auto accFct = [&](size_t sum, const std::vector<const Function *> *innerVector) { return sum + innerVector->size(); };
620 2 const size_t totalTestCount = std::accumulate(tests.begin(), tests.end(), 0, accFct);
621
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 2 builder.CreateCall(printfFct, {allStartMsg, builder.getInt32(totalTestCount), builder.getInt32(tests.size())});
622
623 // Generate a call to each test function
624
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 5 for (const std::vector<const Function *> *testSuite : tests) {
625 // Print test suite prologue
626
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 3 const std::string fileName = testSuite->front()->bodyScope->sourceFile->fileName;
627
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 6 llvm::Constant *fileNameValue = createGlobalStringConst("fileName", fileName, testSuite->front()->getDeclCodeLoc());
628
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 3 builder.CreateCall(printfFct, {fileStartMsg, builder.getInt32(testSuite->size()), fileNameValue});
629
630
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 11 for (const Function *testFunction : *testSuite) {
631
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 8 assert(testFunction->isNormalFunction());
632
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 8 assert(testFunction->paramList.empty());
633
634 // Retrieve attribute list for the test function
635
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 8 assert(testFunction->declNode->isFctOrProcDef());
636
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 8 const auto fctDefNode = spice_pointer_cast<FctDefBaseNode *>(testFunction->declNode);
637
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 8 assert(fctDefNode->attrs != nullptr);
638 8 const AttrLstNode *attrs = fctDefNode->attrs->attrLst;
639
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 16 assert(attrs->getAttrValueByName(ATTR_TEST)->boolValue); // The test attribute must be present
640
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 16 const CompileTimeValue *testSkipAttr = attrs->getAttrValueByName(ATTR_TEST_SKIP);
641
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 8 const bool skipTest = testSkipAttr && testSkipAttr->boolValue;
642
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 16 const CompileTimeValue *testNameAttr = attrs->getAttrValueByName(ATTR_TEST_NAME);
643
644 // Prepare test name
645
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 8 std::stringstream testName;
646
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 8 testName << testFunction->name;
647
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 8 if (testNameAttr)
648
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 1 testName << " (" << resourceManager.compileTimeStringValues.at(testNameAttr->stringValueOffset) << ")";
649
650 // Print test case run message
651
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 24 llvm::Constant *testNameValue = createGlobalStringConst("testName", testName.str(), testFunction->getDeclCodeLoc());
652
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 8 builder.CreateCall(printfFct, {runMsg, testNameValue});
653
654
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 8 if (skipTest) {
655 // Print test case skip message
656
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 1 builder.CreateCall(printfFct, {skippedMsg, testNameValue});
657 1 continue;
658 }
659
660 // Test function is not defined in the current module -> declare it
661
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 7 const std::string mangledName = testFunction->getMangledName();
662
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 7 if (!module->getFunction(mangledName)) {
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 2 assert(testFunction->returnType.is(TY_BOOL));
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 2 assert(testFunction->paramList.empty());
665
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 2 llvm::FunctionType *fctType = llvm::FunctionType::get(builder.getInt1Ty(), {}, false);
666
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 2 module->getOrInsertFunction(mangledName, fctType);
667 }
668
669 // Call test function
670
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 7 llvm::Function *callee = module->getFunction(mangledName);
671
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 7 assert(callee != nullptr);
672
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 7 llvm::Value *testCaseResult = builder.CreateCall(callee);
673
674 // Update result variable
675
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 14 llvm::Value *oldResult = insertLoad(i32Ty, overallResult);
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 7 llvm::Value *newResult = builder.CreateAnd(oldResult, builder.CreateZExt(testCaseResult, i32Ty));
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 7 insertStore(newResult, overallResult);
678
679 // Print test case result message
680
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 7 llvm::Value *message = builder.CreateSelect(testCaseResult, successMsg, errorMsg);
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 7 builder.CreateCall(printfFct, {message, testNameValue});
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 8 }
683
684 // Print test suite epilogue
685
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 3 builder.CreateCall(printfFct, {fileEndMsg, builder.getInt32(testSuite->size()), fileNameValue});
686 3 }
687
688 // Print end message
689
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 2 builder.CreateCall(printfFct, {allEndMsg, builder.getInt32(totalTestCount), builder.getInt32(tests.size())});
690
691 // Return result
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 4 llvm::Value *finalResult = insertLoad(i32Ty, overallResult);
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 2 builder.CreateRet(finalResult);
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 4 };
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 2 generateImplicitFunction(generateBody, &testMain);
696 2 }
697
698 } // namespace spice::compiler
699