GCC Code Coverage Report

Directory: ../
File: src/irgenerator/GenImplicit.cpp
Date: 2025-12-29 16:28:41
Coverage Exec Excl Total
Lines: 91.7% 386 0 421
Functions: 95.7% 22 0 23
Branches: 49.7% 506 0 1018
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 13 llvm::Value *IRGenerator::doImplicitCast(llvm::Value *src, QualType dstSTy, QualType srcSTy) {
28
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 13 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 13 size_t loadCounter = 0;
32
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 13 while (srcSTy.isPtr()) {
33 ✗ src = insertLoad(srcSTy, src);
34 ✗ srcSTy = srcSTy.getContained();
35 ✗ dstSTy = dstSTy.getContained();
36 ✗ loadCounter++;
37 }
38 // GEP or bit-cast
39
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 13 if (dstSTy.isArray() && srcSTy.isArray()) { // Special case that is used for passing arrays as pointer to functions
40
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 13 llvm::Value *indices[2] = {builder.getInt64(0), builder.getInt32(0)};
41
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 13 src = insertInBoundsGEP(srcSTy.toLLVMType(sourceFile), src, indices);
42 } else {
43 ✗ src = insertLoad(srcSTy, src);
44 ✗ src = builder.CreateBitCast(src, dstSTy.toLLVMType(sourceFile));
45 }
46 // Pack the pointers together again
47
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 13 for (; loadCounter > 0; loadCounter--) {
48 ✗ llvm::Value *newActualArg = insertAlloca(srcSTy);
49 ✗ insertStore(src, newActualArg);
50 ✗ src = newActualArg;
51 }
52 13 return src;
53 }
54
55 30488 void IRGenerator::generateScopeCleanup(const StmtLstNode *node) const {
56 // Do not clean up if the block is already terminated
57
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 30488 if (blockAlreadyTerminated)
58 10976 return;
59
60 // Call all dtor functions
61 19512 const auto &[dtorFunctionsToCall, heapVarsToFree] = node->resourcesToCleanup.at(manIdx);
62
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 20519 for (auto [entry, dtor] : dtorFunctionsToCall)
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 1007 generateCtorOrDtorCall(entry, dtor, {});
64
65 // Deallocate all heap variables that go out of scope and are currently owned
66
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 19516 for (const SymbolTableEntry *entry : heapVarsToFree)
67
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 4 generateDeallocCall(entry->getAddress());
68
69 // Generate lifetime end markers
70
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 19512 if (cliOptions.useLifetimeMarkers) {
71
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 42 for (const SymbolTableEntry *var : currentScope->getVarsGoingOutOfScope()) {
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 9 llvm::Value *address = var->getAddress();
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 9 if (address == nullptr)
74 ✗ continue;
75
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 9 const uint64_t sizeInBytes = module->getDataLayout().getTypeAllocSize(var->getQualType().toLLVMType(sourceFile));
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 9 builder.CreateLifetimeEnd(address, builder.getInt64(sizeInBytes));
77 33 }
78 }
79 }
80
81 1719 void IRGenerator::generateFctDecl(const Function *fct, const std::vector<llvm::Value *> &args) const {
82 // Retrieve metadata for the function
83
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 1719 const std::string mangledName = fct->getMangledName();
84
85 // Function is not defined in the current module -> declare it
86
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 1719 if (!module->getFunction(mangledName)) {
87 429 std::vector<llvm::Type *> paramTypes;
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 943 for (const llvm::Value *argValue : args)
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 514 paramTypes.push_back(argValue->getType());
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 429 llvm::Type *returnType = fct->isFunction() ? fct->returnType.toLLVMType(sourceFile) : builder.getVoidTy();
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 429 llvm::FunctionType *fctType = llvm::FunctionType::get(returnType, paramTypes, false);
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 429 module->getOrInsertFunction(mangledName, fctType);
93
94
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 429 if (fct->isMethod()) {
95 // Get callee function
96
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 429 llvm::Function *callee = module->getFunction(mangledName);
97
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 429 assert(callee != nullptr);
98
99 // Set attributes to 'this' param
100 // Get 'this' entry
101
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 1287 const SymbolTableEntry *thisEntry = fct->bodyScope->lookupStrict(THIS_VARIABLE_NAME);
102
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 429 assert(thisEntry != nullptr);
103
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 429 llvm::Type *structType = thisEntry->getQualType().getContained().toLLVMType(sourceFile);
104
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 429 assert(structType != nullptr);
105
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 429 callee->addParamAttr(0, llvm::Attribute::NoUndef);
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 429 callee->addParamAttr(0, llvm::Attribute::NonNull);
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 429 callee->addDereferenceableParamAttr(0, module->getDataLayout().getTypeStoreSize(structType));
108
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 429 callee->addParamAttr(0, llvm::Attribute::getWithAlignment(context, module->getDataLayout().getABITypeAlign(structType)));
109 }
110 429 }
111 1719 }
112
113 1719 llvm::CallInst *IRGenerator::generateFctCall(const Function *fct, const std::vector<llvm::Value *> &args) const {
114 // Retrieve metadata for the function
115
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 1719 const std::string mangledName = fct->getMangledName();
116
117 // Get callee function
118
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 1719 llvm::Function *callee = module->getFunction(mangledName);
119
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 1719 assert(callee != nullptr);
120
121 // Generate function call
122
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 1719 llvm::CallInst *callInst = builder.CreateCall(callee, args);
123
124 // Set attributes to 'this' param
125
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 1719 if (fct->isMethod()) {
126 // Get 'this' entry
127
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 5157 const SymbolTableEntry *thisEntry = fct->bodyScope->lookupStrict(THIS_VARIABLE_NAME);
128
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 1719 assert(thisEntry != nullptr);
129
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 1719 llvm::Type *structType = thisEntry->getQualType().getContained().toLLVMType(sourceFile);
130
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 1719 assert(structType != nullptr);
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 1719 callInst->addParamAttr(0, llvm::Attribute::NoUndef);
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 1719 callInst->addParamAttr(0, llvm::Attribute::NonNull);
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 1719 callInst->addDereferenceableParamAttr(0, module->getDataLayout().getTypeStoreSize(structType));
134
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 1719 callInst->addParamAttr(0, llvm::Attribute::getWithAlignment(context, module->getDataLayout().getABITypeAlign(structType)));
135 }
136
137 1719 return callInst;
138 1719 }
139
140 ✗ llvm::Value *IRGenerator::generateFctDeclAndCall(const Function *fct, const std::vector<llvm::Value *> &args) const {
141 ✗ generateFctDecl(fct, args);
142 ✗ return generateFctCall(fct, args);
143 }
144
145 1719 void IRGenerator::generateProcDeclAndCall(const Function *proc, const std::vector<llvm::Value *> &args) const {
146 1719 generateFctDecl(proc, args);
147 1719 (void)generateFctCall(proc, args);
148 1719 }
149
150 1288 void IRGenerator::generateCtorOrDtorCall(const SymbolTableEntry *entry, const Function *ctorOrDtor,
151 const std::vector<llvm::Value *> &args) const {
152 // Retrieve address of the struct variable. For fields this is the 'this' variable, otherwise use the normal address
153 llvm::Value *structAddr;
154
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 1288 if (entry->isField()) {
155 // Take 'this' var as base pointer
156
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 339 const SymbolTableEntry *thisVar = currentScope->lookupStrict(THIS_VARIABLE_NAME);
157
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 113 assert(thisVar != nullptr);
158
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 113 assert(thisVar->getQualType().isPtr() && thisVar->getQualType().getContained().is(TY_STRUCT));
159
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 113 llvm::Type *thisType = thisVar->getQualType().getContained().toLLVMType(sourceFile);
160
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 226 llvm::Value *thisPtr = insertLoad(builder.getPtrTy(), thisVar->getAddress());
161 // Add field offset
162
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 113 structAddr = insertStructGEP(thisType, thisPtr, entry->orderIndex);
163 } else {
164 1175 structAddr = entry->getAddress();
165 // For optional parameter initializers we need this exception
166
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 1175 if (!structAddr)
167 5 return;
168 }
169
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 1283 assert(structAddr != nullptr);
170 1283 generateCtorOrDtorCall(structAddr, ctorOrDtor, args);
171 }
172
173 1719 void IRGenerator::generateCtorOrDtorCall(llvm::Value *structAddr, const Function *ctorOrDtor,
174 const std::vector<llvm::Value *> &args) const {
175 // Build parameter list
176
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 3438 std::vector argValues = {structAddr};
177
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 1719 argValues.insert(argValues.end(), args.begin(), args.end());
178
179 // Generate function call
180
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 1719 generateProcDeclAndCall(ctorOrDtor, argValues);
181 1719 }
182
183 78 void IRGenerator::generateDeallocCall(llvm::Value *variableAddress) const {
184 // Abort if the address is not set. This can happen when leaving the scope of a dtor, which already freed the heap memory
185
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 78 if (!variableAddress)
186 1 return;
187
188 // In case of string runtime, call free manually. Otherwise, use the memory_rt implementation of sDealloc()
189
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 154 if (sourceFile->isStringRT()) {
190 ✗ llvm::Function *freeFct = stdFunctionManager.getFreeFct();
191 ✗ builder.CreateCall(freeFct, variableAddress);
192 } else {
193 77 llvm::Function *deallocFct = stdFunctionManager.getDeallocBytePtrRefFct();
194
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 77 builder.CreateCall(deallocFct, variableAddress);
195 }
196 }
197
198 4 llvm::Function *IRGenerator::generateImplicitFunction(const std::function<void()> &generateBody, const Function *spiceFunc) {
199 // Only focus on method procedures
200
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 4 const ASTNode *node = spiceFunc->entry->declNode;
201
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 4 assert(spiceFunc->isFunction());
202
203 // Only generate if used
204
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 4 if (!spiceFunc->used)
205 ✗ return nullptr;
206
207 // Retrieve return type
208
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 4 llvm::Type *returnType = spiceFunc->returnType.toLLVMType(sourceFile);
209
210 // Get 'this' entry
211 4 std::vector<llvm::Type *> paramTypes;
212
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 4 SymbolTableEntry *thisEntry = nullptr;
213
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 4 if (spiceFunc->isMethod()) {
214 ✗ thisEntry = spiceFunc->bodyScope->lookupStrict(THIS_VARIABLE_NAME);
215 ✗ assert(thisEntry != nullptr);
216 ✗ paramTypes.push_back(builder.getPtrTy());
217 }
218
219 // Get parameter types
220
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 4 for (const auto &[qualType, isOptional] : spiceFunc->paramList) {
221 ✗ assert(!isOptional);
222 ✗ paramTypes.push_back(qualType.toLLVMType(sourceFile));
223 }
224
225 // Get function linkage
226
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 4 const bool isPublic = spiceFunc->entry->getQualType().isPublic();
227
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 4 const llvm::GlobalValue::LinkageTypes linkage = isPublic ? llvm::Function::ExternalLinkage : llvm::Function::PrivateLinkage;
228
229 // Create function
230
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 4 const std::string mangledName = spiceFunc->getMangledName();
231
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 4 llvm::FunctionType *fctType = llvm::FunctionType::get(returnType, paramTypes, false);
232
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 4 llvm::Function *fct = llvm::Function::Create(fctType, llvm::Function::ExternalLinkage, mangledName, module);
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 4 fct->setLinkage(linkage);
234
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 4 fct->setDoesNotRecurse();
235
236 // Set attributes to 'this' param
237
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 4 if (spiceFunc->isMethod()) {
238 ✗ fct->addParamAttr(0, llvm::Attribute::NoUndef);
239 ✗ fct->addParamAttr(0, llvm::Attribute::NonNull);
240 ✗ assert(thisEntry != nullptr);
241 ✗ llvm::Type *structType = thisEntry->getQualType().getContained().toLLVMType(sourceFile);
242 ✗ assert(structType != nullptr);
243 ✗ fct->addDereferenceableParamAttr(0, module->getDataLayout().getTypeStoreSize(structType));
244 ✗ fct->addParamAttr(0, llvm::Attribute::getWithAlignment(context, module->getDataLayout().getABITypeAlign(structType)));
245 }
246
247 // Add debug info
248
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 4 diGenerator.generateFunctionDebugInfo(fct, spiceFunc);
249
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 4 if (node != nullptr)
250 ✗ diGenerator.setSourceLocation(node);
251
252 // Change to body scope
253
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 4 changeToScope(spiceFunc->getScopeName(), ScopeType::FUNC_PROC_BODY);
254
255 // Create entry block
256
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 4 llvm::BasicBlock *bEntry = createBlock();
257
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 4 switchToBlock(bEntry, fct);
258
259 // Reset alloca insert markers to this block
260 4 allocaInsertBlock = bEntry;
261
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 4 allocaInsertInst = nullptr;
262
263 // Store first argument to 'this' symbol
264
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 4 if (spiceFunc->isMethod()) {
265 ✗ assert(thisEntry != nullptr);
266 // Allocate space for the parameter
267 ✗ llvm::Value *thisAddress = insertAlloca(paramTypes.front(), THIS_VARIABLE_NAME);
268 // Update the symbol table entry
269 ✗ thisEntry->updateAddress(thisAddress);
270 // Store the value at the new address
271 ✗ insertStore(fct->arg_begin(), thisAddress);
272 // Generate debug info
273 ✗ diGenerator.generateLocalVarDebugInfo(THIS_VARIABLE_NAME, thisAddress, 1);
274 }
275
276 // Generate body
277
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 4 generateBody();
278
279 // Conclude debug info for function
280
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 4 diGenerator.concludeFunctionDebugInfo();
281
282 // Verify function
283 // Use the code location of the declaration node if available. Otherwise, (e.g. in case of test main) use an artificial code loc
284
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 4 const CodeLoc codeLoc = node != nullptr ? node->codeLoc : CodeLoc(1, 1, sourceFile);
285
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 4 verifyFunction(fct, codeLoc);
286
287 // Change to parent scope
288
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 4 changeToParentScope(ScopeType::FUNC_PROC_BODY);
289
290 4 return fct;
291 4 }
292
293 249 llvm::Function *IRGenerator::generateImplicitProcedure(const std::function<void()> &generateBody, const Function *spiceProc) {
294 // Only focus on method procedures
295 249 const ASTNode *node = spiceProc->entry->declNode;
296
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 249 assert(node != nullptr);
297
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 249 assert(spiceProc->isProcedure());
298
299 // Only generate if used
300
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 249 if (!spiceProc->used)
301 79 return nullptr;
302
303 // Get 'this' entry
304 170 std::vector<llvm::Type *> paramTypes;
305
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 170 SymbolTableEntry *thisEntry = nullptr;
306
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 170 if (spiceProc->isMethod()) {
307
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 510 thisEntry = spiceProc->bodyScope->lookupStrict(THIS_VARIABLE_NAME);
308
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 170 assert(thisEntry != nullptr);
309
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 170 paramTypes.push_back(builder.getPtrTy());
310 }
311
312 // Get parameter types
313
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 194 for (const auto &[qualType, isOptional] : spiceProc->paramList) {
314
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 24 assert(!isOptional);
315
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 24 paramTypes.push_back(qualType.toLLVMType(sourceFile));
316 }
317
318 // Get function linkage
319
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 170 const bool isPublic = spiceProc->entry->getQualType().isPublic();
320
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 170 const llvm::GlobalValue::LinkageTypes linkage = isPublic ? llvm::Function::ExternalLinkage : llvm::Function::PrivateLinkage;
321
322 // Create function
323
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 170 const std::string mangledName = spiceProc->getMangledName();
324
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 170 llvm::FunctionType *fctType = llvm::FunctionType::get(builder.getVoidTy(), paramTypes, false);
325
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 170 llvm::Function *fct = llvm::Function::Create(fctType, llvm::Function::ExternalLinkage, mangledName, module);
326
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 170 fct->setLinkage(linkage);
327
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 170 fct->setDoesNotRecurse();
328
329 // Set attributes to 'this' param
330
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 170 if (spiceProc->isMethod()) {
331
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 170 fct->addParamAttr(0, llvm::Attribute::NoUndef);
332
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 170 fct->addParamAttr(0, llvm::Attribute::NonNull);
333
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 170 assert(thisEntry != nullptr);
334
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 170 llvm::Type *structType = thisEntry->getQualType().getContained().toLLVMType(sourceFile);
335
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 170 assert(structType != nullptr);
336
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 170 fct->addDereferenceableParamAttr(0, module->getDataLayout().getTypeStoreSize(structType));
337
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 170 fct->addParamAttr(0, llvm::Attribute::getWithAlignment(context, module->getDataLayout().getABITypeAlign(structType)));
338 }
339
340 // Add debug info
341
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 170 diGenerator.generateFunctionDebugInfo(fct, spiceProc);
342
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 170 diGenerator.setSourceLocation(node);
343
344 // Change to body scope
345
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 170 changeToScope(spiceProc->getScopeName(), ScopeType::FUNC_PROC_BODY);
346
347 // Create entry block
348
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 170 llvm::BasicBlock *bEntry = createBlock();
349
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 170 switchToBlock(bEntry, fct);
350
351 // Reset alloca insert markers to this block
352 170 allocaInsertBlock = bEntry;
353
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 170 allocaInsertInst = nullptr;
354
355 // Store first argument to 'this' symbol
356
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 170 if (spiceProc->isMethod()) {
357
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 170 assert(thisEntry != nullptr);
358 // Allocate space for the parameter
359
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 170 llvm::Value *thisAddress = insertAlloca(paramTypes.front(), THIS_VARIABLE_NAME);
360 // Update the symbol table entry
361
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 170 thisEntry->updateAddress(thisAddress);
362 // Store the value at the new address
363
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 170 insertStore(fct->arg_begin(), thisAddress);
364 // Generate debug info
365
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 510 diGenerator.generateLocalVarDebugInfo(THIS_VARIABLE_NAME, thisAddress, 1);
366 }
367
368 // Generate body
369
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 170 generateBody();
370
371 // Create return instruction
372
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 170 builder.CreateRetVoid();
373
374 // Conclude debug info for function
375
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 170 diGenerator.concludeFunctionDebugInfo();
376
377 // Verify function
378
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 170 verifyFunction(fct, node->codeLoc);
379
380 // Change to parent scope
381
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 170 changeToParentScope(ScopeType::FUNC_PROC_BODY);
382
383 170 return fct;
384 170 }
385
386 1323 void IRGenerator::generateCtorBodyPreamble(Scope *bodyScope) {
387 // Retrieve struct scope
388 1323 Scope *structScope = bodyScope->parent;
389
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 1323 assert(structScope != nullptr);
390
391 // Get struct address
392
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 3969 const SymbolTableEntry *thisEntry = bodyScope->lookupStrict(THIS_VARIABLE_NAME);
393
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 1323 assert(thisEntry != nullptr);
394
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 1323 llvm::Value *thisPtrPtr = thisEntry->getAddress();
395
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 1323 assert(thisPtrPtr != nullptr);
396 1323 llvm::Value *thisPtr = nullptr;
397
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 1323 const QualType structSymbolType = thisEntry->getQualType().getBase();
398
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 1323 llvm::Type *structType = structSymbolType.toLLVMType(sourceFile);
399
400 // Store VTable to first struct field if required
401
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 1323 const Struct *spiceStruct = structSymbolType.getStruct(nullptr);
402
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 1323 assert(spiceStruct != nullptr);
403
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 1323 if (spiceStruct->vTableData.vtable != nullptr) {
404
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 252 assert(spiceStruct->vTableData.vtableType != nullptr);
405 // Store VTable to field address at index 0
406
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 252 thisPtr = insertLoad(builder.getPtrTy(), thisPtrPtr);
407
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 252 llvm::Value *indices[3] = {builder.getInt64(0), builder.getInt32(0), builder.getInt32(2)};
408
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 252 llvm::Value *gepResult = insertInBoundsGEP(spiceStruct->vTableData.vtableType, spiceStruct->vTableData.vtable, indices);
409
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 252 insertStore(gepResult, thisPtr);
410 }
411
412
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 1323 const size_t fieldCount = structScope->getFieldCount();
413
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 4641 for (size_t i = 0; i < fieldCount; i++) {
414
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 3318 const SymbolTableEntry *fieldSymbol = structScope->lookupField(i);
415
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 3318 assert(fieldSymbol != nullptr && fieldSymbol->isField());
416
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 3318 if (fieldSymbol->isImplicitField)
417 204 continue;
418
419 // Call ctor for struct fields
420
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 3114 const QualType &fieldType = fieldSymbol->getQualType();
421
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 3114 const auto fieldNode = spice_pointer_cast<FieldNode *>(fieldSymbol->declNode);
422
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 3114 if (fieldType.is(TY_STRUCT)) {
423 // Lookup ctor function and call if available
424
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 386 Scope *matchScope = fieldType.getBodyScope();
425
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 1158 if (const Function *ctorFunction = FunctionManager::lookup(matchScope, CTOR_FUNCTION_NAME, fieldType, {}, false)) {
426
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 326 if (!thisPtr)
427
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 180 thisPtr = insertLoad(builder.getPtrTy(), thisPtrPtr);
428
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 326 llvm::Value *fieldAddress = insertStructGEP(structType, thisPtr, i);
429
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 326 generateCtorOrDtorCall(fieldAddress, ctorFunction, {});
430 }
431 386 continue;
432 386 }
433
434 // Store default field values
435
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 2728 if (fieldNode->defaultValue != nullptr || cliOptions.buildMode != BuildMode::RELEASE) {
436 // Retrieve field address
437
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 2728 if (!thisPtr)
438
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 1942 thisPtr = insertLoad(builder.getPtrTy(), thisPtrPtr);
439
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 2728 llvm::Value *fieldAddress = insertStructGEP(structType, thisPtr, i);
440 // Retrieve default value
441 llvm::Value *value;
442
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 2728 if (fieldNode->defaultValue != nullptr) {
443 // To resolve the default value, we need to temporarily change to the manifestation of the current struct instantiation
444 292 const size_t oldManIdx = manIdx; // Save manifestation index
445 292 manIdx = spiceStruct->manifestationIndex;
446
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 292 value = resolveValue(fieldNode->defaultValue);
447 292 manIdx = oldManIdx; // Restore manifestation index
448 } else {
449
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 2436 assert(cliOptions.buildMode == BuildMode::DEBUG || cliOptions.buildMode == BuildMode::TEST);
450
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 2436 value = getDefaultValueForSymbolType(fieldType);
451 }
452 // Store default value
453
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 2728 insertStore(value, fieldAddress);
454 }
455 }
456 1323 }
457
458 39 void IRGenerator::generateDefaultCtor(const Function *ctorFunction) {
459
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 39 assert(ctorFunction->implicitDefault && ctorFunction->name == CTOR_FUNCTION_NAME);
460 74 const std::function<void()> generateBody = [&] { generateCtorBodyPreamble(ctorFunction->bodyScope); };
461
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 39 generateImplicitProcedure(generateBody, ctorFunction);
462 39 }
463
464 24 void IRGenerator::generateCopyCtorBodyPreamble(const Function *copyCtorFunction) {
465 // Retrieve struct scope
466 24 Scope *structScope = copyCtorFunction->bodyScope->parent;
467
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 24 assert(structScope != nullptr);
468
469 // Get struct address
470
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 72 const SymbolTableEntry *thisEntry = copyCtorFunction->bodyScope->lookupStrict(THIS_VARIABLE_NAME);
471
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 24 assert(thisEntry != nullptr);
472 24 llvm::Value *thisPtrPtr = thisEntry->getAddress();
473
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 24 assert(thisPtrPtr != nullptr);
474 24 llvm::Value *thisPtr = nullptr;
475
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 24 llvm::Type *structType = thisEntry->getQualType().getBase().toLLVMType(sourceFile);
476
477 // Retrieve the value of the original struct, which is the only function parameter
478 24 llvm::Value *originalThisPtr = builder.GetInsertBlock()->getParent()->getArg(1);
479
480 24 const size_t fieldCount = structScope->getFieldCount();
481
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 108 for (size_t i = 0; i < fieldCount; i++) {
482
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 84 const SymbolTableEntry *fieldSymbol = structScope->lookupField(i);
483
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 84 assert(fieldSymbol != nullptr && fieldSymbol->isField());
484
485 // Retrieve the address of the original field (copy source)
486
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 84 llvm::Value *originalFieldAddress = insertStructGEP(structType, originalThisPtr, i);
487
488 84 const QualType &fieldType = fieldSymbol->getQualType();
489
490 // Call copy ctor for struct fields
491
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 84 if (fieldType.is(TY_STRUCT) && !fieldType.isTriviallyCopyable(nullptr)) {
492 // Lookup copy ctor function and call if available
493
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 40 Scope *matchScope = fieldType.getBodyScope();
494
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 120 const ArgList args = {{fieldType.toConstRef(nullptr), false /* we have the field as storage */}};
495
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 40 const Function *copyCtor = FunctionManager::lookup(matchScope, CTOR_FUNCTION_NAME, fieldType, args, false);
496
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 40 assert(copyCtor != nullptr);
497
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 80 generateCtorOrDtorCall(fieldSymbol, copyCtor, {originalFieldAddress});
498 40 continue;
499 40 }
500
501 // Retrieve the address of the new field (copy dest)
502
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 44 if (!thisPtr)
503
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 28 thisPtr = insertLoad(builder.getPtrTy(), thisPtrPtr);
504
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 44 llvm::Value *fieldAddress = insertStructGEP(structType, thisPtr, i);
505
506 // For owning heap fields, copy the underlying heap storage
507
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 44 if (fieldType.isHeap()) {
508
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 7 assert(fieldType.isPtr());
509
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 7 llvm::Type *pointeeType = fieldType.getContained().toLLVMType(sourceFile);
510
511 // Retrieve original heap address
512
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 14 llvm::Value *originalHeapAddress = insertLoad(builder.getPtrTy(), originalFieldAddress);
513
514 // Insert check for nullptr
515
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 14 llvm::BasicBlock *bThen = createBlock("nullptrcheck.then");
516
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 7 llvm::BasicBlock *bExit = createBlock("nullptrcheck.exit");
517
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 7 llvm::Value *condValue = builder.CreateICmpNE(originalHeapAddress, llvm::Constant::getNullValue(builder.getPtrTy()));
518 7 insertCondJump(condValue, bThen, bExit);
519
520 // Fill then block
521 7 switchToBlock(bThen);
522
523 // Allocate new space on the heap
524 7 llvm::Function *unsafeAllocFct = stdFunctionManager.getAllocUnsafeLongFct();
525
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 7 const size_t typeSizeInBytes = module->getDataLayout().getTypeSizeInBits(pointeeType) / 8;
526 7 llvm::ConstantInt *typeSize = builder.getInt64(typeSizeInBytes);
527
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 7 llvm::Value *newHeapAddress = builder.CreateCall(unsafeAllocFct, {typeSize});
528 7 insertStore(newHeapAddress, fieldAddress);
529
530 // Copy data from the old heap storage to the new one
531 7 generateShallowCopy(originalHeapAddress, pointeeType, newHeapAddress, false);
532 7 insertJump(bExit);
533
534 // Switch to exit block
535 7 switchToBlock(bExit);
536
537 7 continue;
538 7 }
539
540 // Shallow copy
541 37 llvm::Type *type = fieldType.toLLVMType(sourceFile);
542 37 generateShallowCopy(originalFieldAddress, type, fieldAddress, false);
543 }
544 24 }
545
546 97 void IRGenerator::generateDefaultCopyCtor(const Function *copyCtorFunction) {
547
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 97 assert(copyCtorFunction->implicitDefault && copyCtorFunction->name == CTOR_FUNCTION_NAME);
548 121 const std::function<void()> generateBody = [&] { generateCopyCtorBodyPreamble(copyCtorFunction); };
549
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 97 generateImplicitProcedure(generateBody, copyCtorFunction);
550 97 }
551
552 111 void IRGenerator::generateDtorBodyPreamble(const Function *dtorFunction) const {
553 // Retrieve struct scope
554 111 Scope *structScope = dtorFunction->bodyScope->parent;
555
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 111 assert(structScope != nullptr);
556
557 // Get struct address
558
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 333 const SymbolTableEntry *thisEntry = dtorFunction->bodyScope->lookupStrict(THIS_VARIABLE_NAME);
559
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 111 assert(thisEntry != nullptr);
560 111 llvm::Value *thisPtrPtr = thisEntry->getAddress();
561
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 111 assert(thisPtrPtr != nullptr);
562 111 llvm::Value *thisPtr = nullptr;
563
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 111 llvm::Type *structType = thisEntry->getQualType().getBase().toLLVMType(sourceFile);
564
565 111 const size_t fieldCount = structScope->getFieldCount();
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 493 for (size_t i = 0; i < fieldCount; i++) {
567
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 382 const SymbolTableEntry *fieldSymbol = structScope->lookupField(i);
568
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 382 assert(fieldSymbol != nullptr && fieldSymbol->isField());
569
570 // Call dtor for struct fields
571 382 const QualType &fieldType = fieldSymbol->getQualType();
572
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 382 if (fieldType.is(TY_STRUCT)) {
573 // Lookup dtor function and generate call if found
574
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 246 if (const Function *dtorFct = FunctionManager::lookup(fieldType.getBodyScope(), DTOR_FUNCTION_NAME, fieldType, {}, false))
575
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 73 generateCtorOrDtorCall(fieldSymbol, dtorFct, {});
576 82 continue;
577 82 }
578
579 // Deallocate fields, that are stored on the heap
580
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 300 if (fieldType.isHeap()) {
581 // Retrieve field address
582
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 74 if (!thisPtr)
583
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 136 thisPtr = insertLoad(builder.getPtrTy(), thisPtrPtr);
584
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 74 llvm::Value *fieldAddress = insertStructGEP(structType, thisPtr, i);
585 // Call dealloc function
586 74 generateDeallocCall(fieldAddress);
587 }
588 }
589 111 }
590
591 113 void IRGenerator::generateDefaultDtor(const Function *dtorFunction) {
592
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 113 assert(dtorFunction->implicitDefault && dtorFunction->name == DTOR_FUNCTION_NAME);
593 224 const std::function<void()> generateBody = [&] { generateDtorBodyPreamble(dtorFunction); };
594
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 113 generateImplicitProcedure(generateBody, dtorFunction);
595 113 }
596
597 4 void IRGenerator::generateTestMain() {
598 // Collect all test functions
599 4 std::vector<const std::vector<const Function *> *> tests;
600
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 9 for (const auto &sourceFile : resourceManager.sourceFiles | std::views::values)
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 5 if (!sourceFile->testFunctions.empty())
602
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 5 tests.push_back(&sourceFile->testFunctions);
603
604 // Prepare printf function
605
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 4 llvm::Function *printfFct = stdFunctionManager.getPrintfFct();
606
607 // Prepare success and error messages
608
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 16 llvm::Constant *allStartMsg = createGlobalStringConst("allStartMsg", TEST_ALL_START_MSG, *rootScope->codeLoc);
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 16 llvm::Constant *allEndMsg = createGlobalStringConst("allEndMsg", TEST_ALL_END_MSG, *rootScope->codeLoc);
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 16 llvm::Constant *fileStartMsg = createGlobalStringConst("fileStartMsg", TEST_FILE_START_MSG, *rootScope->codeLoc);
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 16 llvm::Constant *fileEndMsg = createGlobalStringConst("fileEndMsg", TEST_FILE_END_MSG, *rootScope->codeLoc);
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 16 llvm::Constant *runMsg = createGlobalStringConst("runMsg", TEST_CASE_RUN_MSG, *rootScope->codeLoc);
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 16 llvm::Constant *successMsg = createGlobalStringConst("successMsg", TEST_CASE_SUCCESS_MSG, *rootScope->codeLoc);
614
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 16 llvm::Constant *errorMsg = createGlobalStringConst("errorMsg", TEST_CASE_FAILED_MSG, *rootScope->codeLoc);
615
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 16 llvm::Constant *skippedMsg = createGlobalStringConst("skippedMsg", TEST_CASE_SKIPPED_MSG, *rootScope->codeLoc);
616
617 // Prepare entry for test main
618
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 4 QualType functionType(TY_FUNCTION);
619
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 4 functionType.setQualifiers(TypeQualifiers::of(TY_FUNCTION));
620
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 4 functionType.makePublic();
621
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 8 SymbolTableEntry entry(MAIN_FUNCTION_NAME, functionType, rootScope, nullptr, 0, false);
622
623 // Prepare test main function
624
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 12 Function testMain(MAIN_FUNCTION_NAME, &entry, QualType(TY_DYN), QualType(TY_INT), {}, {}, nullptr);
625 4 testMain.used = true; // Mark as used to prevent removal
626 4 testMain.implicitDefault = true;
627 4 testMain.mangleFunctionName = false;
628
629 // Prepare scope
630
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 4 rootScope->createChildScope(testMain.getScopeName(), ScopeType::FUNC_PROC_BODY, nullptr);
631
632 // Generate
633 ✗ const std::function<void()> generateBody = [&] {
634 // Prepare result variable
635 4 std::vector<llvm::Value *> testCaseResults;
636
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 4 testCaseResults.reserve(tests.size());
637
638 // Print start message
639 5 const auto accFct = [&](size_t sum, const std::vector<const Function *> *innerVector) { return sum + innerVector->size(); };
640 4 const size_t totalTestCount = std::accumulate(tests.begin(), tests.end(), 0, accFct);
641
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 4 builder.CreateCall(printfFct, {allStartMsg, builder.getInt32(totalTestCount), builder.getInt32(tests.size())});
642
643 // Generate a call to each test function
644
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 9 for (const std::vector<const Function *> *testSuite : tests) {
645 // Print test suite prologue
646
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 5 const std::string fileName = testSuite->front()->bodyScope->sourceFile->fileName;
647
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 10 llvm::Constant *fileNameValue = createGlobalStringConst("fileName", fileName, testSuite->front()->getDeclCodeLoc());
648
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 5 builder.CreateCall(printfFct, {fileStartMsg, builder.getInt32(testSuite->size()), fileNameValue});
649
650
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 15 for (const Function *testFunction : *testSuite) {
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 10 assert(testFunction->isNormalFunction());
652
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 10 assert(testFunction->paramList.empty());
653
654 // Retrieve attribute list for the test function
655
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 10 assert(testFunction->declNode->isFctOrProcDef());
656
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 10 const auto fctDefNode = spice_pointer_cast<FctDefBaseNode *>(testFunction->declNode);
657
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 10 assert(fctDefNode->attrs != nullptr);
658 10 const AttrLstNode *attrs = fctDefNode->attrs->attrLst;
659
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 20 assert(attrs->getAttrValueByName(ATTR_TEST)->boolValue); // The test attribute must be present
660
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 20 const CompileTimeValue *testSkipAttr = attrs->getAttrValueByName(ATTR_TEST_SKIP);
661
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 10 const bool skipTest = testSkipAttr && testSkipAttr->boolValue;
662
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 20 const CompileTimeValue *testNameAttr = attrs->getAttrValueByName(ATTR_TEST_NAME);
663
664 // Prepare test name
665
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 10 std::stringstream testName;
666
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 10 testName << testFunction->name;
667
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 10 if (testNameAttr)
668
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 1 testName << " (" << resourceManager.compileTimeStringValues.at(testNameAttr->stringValueOffset) << ")";
669
670 // Print test case run message
671
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 30 llvm::Constant *testNameValue = createGlobalStringConst("testName", testName.str(), testFunction->getDeclCodeLoc());
672
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 10 builder.CreateCall(printfFct, {runMsg, testNameValue});
673
674
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 10 if (skipTest) {
675 // Print test case skip message
676
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 1 builder.CreateCall(printfFct, {skippedMsg, testNameValue});
677 1 continue;
678 }
679
680 // Test function is not defined in the current module -> declare it
681
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 9 const std::string mangledName = testFunction->getMangledName();
682
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 9 if (!module->getFunction(mangledName)) {
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 2 assert(testFunction->returnType.is(TY_BOOL));
684
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 2 assert(testFunction->paramList.empty());
685
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 2 llvm::FunctionType *fctType = llvm::FunctionType::get(builder.getInt1Ty(), {}, false);
686
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 2 module->getOrInsertFunction(mangledName, fctType);
687 }
688
689 // Call test function
690
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 9 llvm::Function *callee = module->getFunction(mangledName);
691
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 9 assert(callee != nullptr);
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 9 llvm::Value *testCaseResult = builder.CreateCall(callee);
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 9 testCaseResults.push_back(testCaseResult);
694
695 // Print test case result message
696
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 9 llvm::Value *message = builder.CreateSelect(testCaseResult, successMsg, errorMsg);
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 9 builder.CreateCall(printfFct, {message, testNameValue});
698
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 10 }
699
700 // Print test suite epilogue
701
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 5 builder.CreateCall(printfFct, {fileEndMsg, builder.getInt32(testSuite->size()), fileNameValue});
702 5 }
703
704 // Print end message
705
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 4 builder.CreateCall(printfFct, {allEndMsg, builder.getInt32(totalTestCount), builder.getInt32(tests.size())});
706
707 // Compute overall result
708
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 4 llvm::Value *overallResult = builder.getTrue();
709
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 13 for (llvm::Value *testCaseResult : testCaseResults)
710
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 9 overallResult = builder.CreateAnd(overallResult, testCaseResult);
711
712 // Return code must be 0 for success and 1 for failure, so we need to invert the result and zero extend to 32 bit
713
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 4 llvm::Value *overallResultNegated = builder.CreateNot(overallResult);
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 4 llvm::Value *exitCode = builder.CreateZExt(overallResultNegated, builder.getInt32Ty());
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 4 builder.CreateRet(exitCode);
716
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 8 };
717
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 4 generateImplicitFunction(generateBody, &testMain);
718 4 }
719
720 } // namespace spice::compiler
721