GCC Code Coverage Report

Directory: ../
File: src/irgenerator/GenImplicit.cpp
Date: 2026-01-06 18:16:09
Coverage Exec Excl Total
Lines: 91.1% 397 0 436
Functions: 95.7% 22 0 23
Branches: 49.2% 517 0 1050
Line Branch Exec Source
1 // Copyright (c) 2021-2026 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 30966 void IRGenerator::generateScopeCleanup(const StmtLstNode *node) const {
56 // Do not clean up if the block is already terminated
57
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 30966 if (blockAlreadyTerminated)
58 11153 return;
59
60 // Call all dtor functions
61 19813 const auto &[dtorFunctionsToCall, heapVarsToFree] = node->resourcesToCleanup.at(manIdx);
62
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 20832 for (auto [entry, dtor] : dtorFunctionsToCall)
63
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 1019 generateCtorOrDtorCall(entry, dtor, {});
64
65 // Deallocate all heap variables that go out of scope and are currently owned
66
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 19817 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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 19813 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));
76
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 9 builder.CreateLifetimeEnd(address, builder.getInt64(sizeInBytes));
77 33 }
78 }
79 }
80
81 1739 void IRGenerator::generateFctDecl(const Function *fct, const std::vector<llvm::Value *> &args) const {
82 // Retrieve metadata for the function
83
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 1739 const std::string mangledName = fct->getMangledName();
84
85 // Function is not defined in the current module -> declare it
86
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 1739 if (!module->getFunction(mangledName)) {
87 429 std::vector<llvm::Type *> paramTypes;
88
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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);
106
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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 1739 }
112
113 1739 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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 1739 const std::string mangledName = fct->getMangledName();
116
117 // Get callee function
118
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 1739 llvm::Function *callee = module->getFunction(mangledName);
119
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 1739 assert(callee != nullptr);
120
121 // Generate function call
122
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 1739 llvm::CallInst *callInst = builder.CreateCall(callee, args);
123
124 // Set attributes to 'this' param
125
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 1739 if (fct->isMethod()) {
126 // Get 'this' entry
127
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 5217 const SymbolTableEntry *thisEntry = fct->bodyScope->lookupStrict(THIS_VARIABLE_NAME);
128
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 1739 assert(thisEntry != nullptr);
129
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 1739 llvm::Type *structType = thisEntry->getQualType().getContained().toLLVMType(sourceFile);
130
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 1739 assert(structType != nullptr);
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 1739 callInst->addParamAttr(0, llvm::Attribute::NoUndef);
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 1739 callInst->addParamAttr(0, llvm::Attribute::NonNull);
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 1739 callInst->addDereferenceableParamAttr(0, module->getDataLayout().getTypeStoreSize(structType));
134
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 1739 callInst->addParamAttr(0, llvm::Attribute::getWithAlignment(context, module->getDataLayout().getABITypeAlign(structType)));
135 }
136
137 1739 return callInst;
138 1739 }
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 1739 void IRGenerator::generateProcDeclAndCall(const Function *proc, const std::vector<llvm::Value *> &args) const {
146 1739 generateFctDecl(proc, args);
147 1739 (void)generateFctCall(proc, args);
148 1739 }
149
150 1304 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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 1304 if (entry->isField()) {
155 // Take 'this' var as base pointer
156
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 333 const SymbolTableEntry *thisVar = currentScope->lookupStrict(THIS_VARIABLE_NAME);
157
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 111 assert(thisVar != nullptr);
158
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 111 assert(thisVar->getQualType().isPtr() && thisVar->getQualType().getContained().is(TY_STRUCT));
159
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 111 llvm::Type *thisType = thisVar->getQualType().getContained().toLLVMType(sourceFile);
160
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 222 llvm::Value *thisPtr = insertLoad(builder.getPtrTy(), thisVar->getAddress());
161 // Add field offset
162
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 111 structAddr = insertStructGEP(thisType, thisPtr, entry->orderIndex);
163 } else {
164 1193 structAddr = entry->getAddress();
165 // For optional parameter initializers we need this exception
166
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 1193 if (!structAddr)
167 5 return;
168 }
169
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 1299 assert(structAddr != nullptr);
170 1299 generateCtorOrDtorCall(structAddr, ctorOrDtor, args);
171 }
172
173 1739 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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 3478 std::vector argValues = {structAddr};
177
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 1739 argValues.insert(argValues.end(), args.begin(), args.end());
178
179 // Generate function call
180
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 1739 generateProcDeclAndCall(ctorOrDtor, argValues);
181 1739 }
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->addFnAttr(llvm::Attribute::MustProgress);
235
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 4 fct->addFnAttr(llvm::Attribute::NoUnwind);
236
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 4 if (cliOptions.optLevel == OptLevel::O0) {
237
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 4 fct->addFnAttr(llvm::Attribute::OptimizeNone);
238
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 4 fct->addFnAttr(llvm::Attribute::NoInline);
239 ✗ } else if (cliOptions.optLevel >= OptLevel::Os) {
240 ✗ fct->addFnAttr(llvm::Attribute::OptimizeForSize);
241 }
242
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 4 fct->addFnAttr(llvm::Attribute::getWithUWTableKind(context, llvm::UWTableKind::Default));
243
244 // Set attributes to 'this' param
245
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 4 if (spiceFunc->isMethod()) {
246 ✗ fct->addParamAttr(0, llvm::Attribute::NoUndef);
247 ✗ fct->addParamAttr(0, llvm::Attribute::NonNull);
248 ✗ assert(thisEntry != nullptr);
249 ✗ llvm::Type *structType = thisEntry->getQualType().getContained().toLLVMType(sourceFile);
250 ✗ assert(structType != nullptr);
251 ✗ fct->addDereferenceableParamAttr(0, module->getDataLayout().getTypeStoreSize(structType));
252 ✗ fct->addParamAttr(0, llvm::Attribute::getWithAlignment(context, module->getDataLayout().getABITypeAlign(structType)));
253 }
254
255 // Add debug info
256
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 4 diGenerator.generateFunctionDebugInfo(fct, spiceFunc);
257
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 4 if (node != nullptr)
258 ✗ diGenerator.setSourceLocation(node);
259
260 // Change to body scope
261
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 4 changeToScope(spiceFunc->getScopeName(), ScopeType::FUNC_PROC_BODY);
262
263 // Create entry block
264
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 4 llvm::BasicBlock *bEntry = createBlock();
265
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 4 switchToBlock(bEntry, fct);
266
267 // Reset alloca insert markers to this block
268 4 allocaInsertBlock = bEntry;
269
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 4 allocaInsertInst = nullptr;
270
271 // Store first argument to 'this' symbol
272
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 4 if (spiceFunc->isMethod()) {
273 ✗ assert(thisEntry != nullptr);
274 // Allocate space for the parameter
275 ✗ llvm::Value *thisAddress = insertAlloca(paramTypes.front(), THIS_VARIABLE_NAME);
276 // Update the symbol table entry
277 ✗ thisEntry->updateAddress(thisAddress);
278 // Store the value at the new address
279 ✗ insertStore(fct->arg_begin(), thisAddress);
280 // Generate debug info
281 ✗ diGenerator.generateLocalVarDebugInfo(THIS_VARIABLE_NAME, thisAddress, 1);
282 }
283
284 // Generate body
285
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 4 generateBody();
286
287 // Conclude debug info for function
288
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 4 diGenerator.concludeFunctionDebugInfo();
289
290 // Verify function
291 // Use the code location of the declaration node if available. Otherwise, (e.g. in case of test main) use an artificial code loc
292
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 4 const CodeLoc codeLoc = node != nullptr ? node->codeLoc : CodeLoc(1, 1, sourceFile);
293
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 4 verifyFunction(fct, codeLoc);
294
295 // Change to parent scope
296
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 4 changeToParentScope(ScopeType::FUNC_PROC_BODY);
297
298 4 return fct;
299 4 }
300
301 256 llvm::Function *IRGenerator::generateImplicitProcedure(const std::function<void()> &generateBody, const Function *spiceProc) {
302 // Only focus on method procedures
303 256 const ASTNode *node = spiceProc->entry->declNode;
304
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 256 assert(node != nullptr);
305
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 256 assert(spiceProc->isProcedure());
306
307 // Only generate if used
308
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 256 if (!spiceProc->used)
309 82 return nullptr;
310
311 // Get 'this' entry
312 174 std::vector<llvm::Type *> paramTypes;
313
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 174 SymbolTableEntry *thisEntry = nullptr;
314
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 174 if (spiceProc->isMethod()) {
315
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 522 thisEntry = spiceProc->bodyScope->lookupStrict(THIS_VARIABLE_NAME);
316
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 174 assert(thisEntry != nullptr);
317
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 174 paramTypes.push_back(builder.getPtrTy());
318 }
319
320 // Get parameter types
321
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 196 for (const auto &[qualType, isOptional] : spiceProc->paramList) {
322
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 22 assert(!isOptional);
323
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 22 paramTypes.push_back(qualType.toLLVMType(sourceFile));
324 }
325
326 // Get function linkage
327
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 174 const bool isPublic = spiceProc->entry->getQualType().isPublic();
328
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 174 const llvm::GlobalValue::LinkageTypes linkage = isPublic ? llvm::Function::ExternalLinkage : llvm::Function::PrivateLinkage;
329
330 // Create function
331
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 174 const std::string mangledName = spiceProc->getMangledName();
332
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 174 llvm::FunctionType *fctType = llvm::FunctionType::get(builder.getVoidTy(), paramTypes, false);
333
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 174 llvm::Function *fct = llvm::Function::Create(fctType, llvm::Function::ExternalLinkage, mangledName, module);
334
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 174 fct->setLinkage(linkage);
335
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 174 fct->addFnAttr(llvm::Attribute::MustProgress);
336
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 174 fct->addFnAttr(llvm::Attribute::NoUnwind);
337
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 174 if (cliOptions.optLevel == OptLevel::O0) {
338
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 174 fct->addFnAttr(llvm::Attribute::OptimizeNone);
339
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 174 fct->addFnAttr(llvm::Attribute::NoInline);
340 ✗ } else if (cliOptions.optLevel >= OptLevel::Os) {
341 ✗ fct->addFnAttr(llvm::Attribute::OptimizeForSize);
342 }
343
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 174 fct->addFnAttr(llvm::Attribute::getWithUWTableKind(context, llvm::UWTableKind::Default));
344
345 // Set attributes to 'this' param
346
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 174 if (spiceProc->isMethod()) {
347
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 174 fct->addParamAttr(0, llvm::Attribute::NoUndef);
348
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 174 fct->addParamAttr(0, llvm::Attribute::NonNull);
349
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 174 assert(thisEntry != nullptr);
350
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 174 llvm::Type *structType = thisEntry->getQualType().getContained().toLLVMType(sourceFile);
351
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 174 assert(structType != nullptr);
352
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 174 fct->addDereferenceableParamAttr(0, module->getDataLayout().getTypeStoreSize(structType));
353
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 174 fct->addParamAttr(0, llvm::Attribute::getWithAlignment(context, module->getDataLayout().getABITypeAlign(structType)));
354 }
355
356 // Add debug info
357
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 174 diGenerator.generateFunctionDebugInfo(fct, spiceProc);
358
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 174 diGenerator.setSourceLocation(node);
359
360 // Change to body scope
361
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 174 changeToScope(spiceProc->getScopeName(), ScopeType::FUNC_PROC_BODY);
362
363 // Create entry block
364
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 174 llvm::BasicBlock *bEntry = createBlock();
365
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 174 switchToBlock(bEntry, fct);
366
367 // Reset alloca insert markers to this block
368 174 allocaInsertBlock = bEntry;
369
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 174 allocaInsertInst = nullptr;
370
371 // Store first argument to 'this' symbol
372
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 174 if (spiceProc->isMethod()) {
373
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 174 assert(thisEntry != nullptr);
374 // Allocate space for the parameter
375
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 174 llvm::Value *thisAddress = insertAlloca(paramTypes.front(), THIS_VARIABLE_NAME);
376 // Update the symbol table entry
377
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 174 thisEntry->updateAddress(thisAddress);
378 // Store the value at the new address
379
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 174 insertStore(fct->arg_begin(), thisAddress);
380 // Generate debug info
381
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 522 diGenerator.generateLocalVarDebugInfo(THIS_VARIABLE_NAME, thisAddress, 1);
382 }
383
384 // Generate body
385
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 174 generateBody();
386
387 // Create return instruction
388
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 174 builder.CreateRetVoid();
389
390 // Conclude debug info for function
391
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 174 diGenerator.concludeFunctionDebugInfo();
392
393 // Verify function
394
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 174 verifyFunction(fct, node->codeLoc);
395
396 // Change to parent scope
397
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 174 changeToParentScope(ScopeType::FUNC_PROC_BODY);
398
399 174 return fct;
400 174 }
401
402 1352 void IRGenerator::generateCtorBodyPreamble(Scope *bodyScope) {
403 // Retrieve struct scope
404 1352 Scope *structScope = bodyScope->parent;
405
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 1352 assert(structScope != nullptr);
406
407 // Get struct address
408
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 4056 const SymbolTableEntry *thisEntry = bodyScope->lookupStrict(THIS_VARIABLE_NAME);
409
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 1352 assert(thisEntry != nullptr);
410
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 1352 llvm::Value *thisPtrPtr = thisEntry->getAddress();
411
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 1352 assert(thisPtrPtr != nullptr);
412 1352 llvm::Value *thisPtr = nullptr;
413
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 1352 const QualType structSymbolType = thisEntry->getQualType().getBase();
414
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 1352 llvm::Type *structType = structSymbolType.toLLVMType(sourceFile);
415
416 // Store VTable to first struct field if required
417
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 1352 const Struct *spiceStruct = structSymbolType.getStruct(nullptr);
418
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 1352 assert(spiceStruct != nullptr);
419
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 1352 if (spiceStruct->vTableData.vtable != nullptr) {
420
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 258 assert(spiceStruct->vTableData.vtableType != nullptr);
421 // Store VTable to field address at index 0
422
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 258 thisPtr = insertLoad(builder.getPtrTy(), thisPtrPtr);
423
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 258 llvm::Value *indices[3] = {builder.getInt64(0), builder.getInt32(0), builder.getInt32(2)};
424
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 258 llvm::Value *gepResult = insertInBoundsGEP(spiceStruct->vTableData.vtableType, spiceStruct->vTableData.vtable, indices);
425
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 258 insertStore(gepResult, thisPtr);
426 }
427
428
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 1352 const size_t fieldCount = structScope->getFieldCount();
429
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 4727 for (size_t fieldIdx = 0; fieldIdx < fieldCount; fieldIdx++) {
430
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 3375 const SymbolTableEntry *fieldSymbol = structScope->lookupField(fieldIdx);
431
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 3375 assert(fieldSymbol != nullptr && fieldSymbol->isField());
432
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 3375 if (fieldSymbol->isImplicitField)
433 208 continue;
434
435 // Call ctor for struct fields
436
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 3167 const QualType &fieldType = fieldSymbol->getQualType();
437
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 3167 const auto fieldNode = spice_pointer_cast<FieldNode *>(fieldSymbol->declNode);
438
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 3167 if (fieldType.is(TY_STRUCT)) {
439 // Lookup ctor function and call if available
440
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 390 Scope *matchScope = fieldType.getBodyScope();
441
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 1170 if (const Function *ctorFunction = FunctionManager::lookup(matchScope, CTOR_FUNCTION_NAME, fieldType, {}, false)) {
442
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 330 if (!thisPtr)
443
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 184 thisPtr = insertLoad(builder.getPtrTy(), thisPtrPtr);
444
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 330 llvm::Value *fieldAddress = insertStructGEP(structType, thisPtr, fieldIdx);
445
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 330 generateCtorOrDtorCall(fieldAddress, ctorFunction, {});
446 }
447 390 continue;
448 390 }
449
450 // Store default field values
451
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 2777 if (fieldNode->defaultValue != nullptr || cliOptions.buildMode != BuildMode::RELEASE) {
452 // Retrieve field address
453
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 2777 if (!thisPtr)
454
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 1984 thisPtr = insertLoad(builder.getPtrTy(), thisPtrPtr);
455
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 2777 llvm::Value *fieldAddress = insertStructGEP(structType, thisPtr, fieldIdx);
456 // Retrieve default value
457 llvm::Value *value;
458
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 2777 if (fieldNode->defaultValue != nullptr) {
459 // To resolve the default value, we need to temporarily change to the manifestation of the current struct instantiation
460 299 const size_t oldManIdx = manIdx; // Save manifestation index
461 299 manIdx = spiceStruct->manifestationIndex;
462
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 299 value = resolveValue(fieldNode->defaultValue);
463 299 manIdx = oldManIdx; // Restore manifestation index
464 } else {
465
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 2478 assert(cliOptions.buildMode == BuildMode::DEBUG || cliOptions.buildMode == BuildMode::TEST);
466
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 2478 value = getDefaultValueForSymbolType(fieldType);
467 }
468 // Store default value
469
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 2777 insertStore(value, fieldAddress);
470 }
471 }
472 1352 }
473
474 45 void IRGenerator::generateDefaultCtor(const Function *ctorFunction) {
475
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 45 assert(ctorFunction->implicitDefault && ctorFunction->name == CTOR_FUNCTION_NAME);
476 86 const std::function<void()> generateBody = [&] { generateCtorBodyPreamble(ctorFunction->bodyScope); };
477
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 45 generateImplicitProcedure(generateBody, ctorFunction);
478 45 }
479
480 22 void IRGenerator::generateCopyCtorBodyPreamble(const Function *copyCtorFunction) {
481 // Retrieve struct scope
482 22 Scope *structScope = copyCtorFunction->bodyScope->parent;
483
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 22 assert(structScope != nullptr);
484
485 // Get struct address
486
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 66 const SymbolTableEntry *thisEntry = copyCtorFunction->bodyScope->lookupStrict(THIS_VARIABLE_NAME);
487
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 22 assert(thisEntry != nullptr);
488 22 llvm::Value *thisPtrPtr = thisEntry->getAddress();
489
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 22 assert(thisPtrPtr != nullptr);
490 22 llvm::Value *thisPtr = nullptr;
491
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 22 llvm::Type *structType = thisEntry->getQualType().getBase().toLLVMType(sourceFile);
492
493 // Retrieve the value of the original struct, which is the only function parameter
494 22 llvm::Value *originalThisPtr = builder.GetInsertBlock()->getParent()->getArg(1);
495
496 22 const size_t fieldCount = structScope->getFieldCount();
497
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 99 for (size_t fieldIdx = 0; fieldIdx < fieldCount; fieldIdx++) {
498
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 77 const SymbolTableEntry *fieldSymbol = structScope->lookupField(fieldIdx);
499
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 77 assert(fieldSymbol != nullptr && fieldSymbol->isField());
500
501 // Retrieve the address of the original field (copy source)
502
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 77 llvm::Value *originalFieldAddress = insertStructGEP(structType, originalThisPtr, fieldIdx);
503
504 77 const QualType &fieldType = fieldSymbol->getQualType();
505
506 // Call copy ctor for struct fields
507
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 77 if (fieldType.is(TY_STRUCT) && !fieldType.isTriviallyCopyable(nullptr)) {
508 // Lookup copy ctor function and call if available
509
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 38 Scope *matchScope = fieldType.getBodyScope();
510
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 114 const ArgList args = {{fieldType.toConstRef(nullptr), false /* we have the field as storage */}};
511
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 38 const Function *copyCtor = FunctionManager::lookup(matchScope, CTOR_FUNCTION_NAME, fieldType, args, false);
512
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 38 assert(copyCtor != nullptr);
513
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 76 generateCtorOrDtorCall(fieldSymbol, copyCtor, {originalFieldAddress});
514 38 continue;
515 38 }
516
517 // Retrieve the address of the new field (copy dest)
518
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 39 if (!thisPtr)
519
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 24 thisPtr = insertLoad(builder.getPtrTy(), thisPtrPtr);
520
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 39 llvm::Value *fieldAddress = insertStructGEP(structType, thisPtr, fieldIdx);
521
522 // For owning heap fields, copy the underlying heap storage
523
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 39 if (fieldType.isHeap()) {
524
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 7 assert(fieldType.isPtr());
525
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 7 llvm::Type *pointeeType = fieldType.getContained().toLLVMType(sourceFile);
526
527 // Retrieve original heap address
528
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 14 llvm::Value *originalHeapAddress = insertLoad(builder.getPtrTy(), originalFieldAddress);
529
530 // Insert check for nullptr
531
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 14 llvm::BasicBlock *bThen = createBlock("nullptrcheck.then");
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 7 llvm::BasicBlock *bExit = createBlock("nullptrcheck.exit");
533
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 7 llvm::Value *condValue = builder.CreateICmpNE(originalHeapAddress, llvm::Constant::getNullValue(builder.getPtrTy()));
534 7 insertCondJump(condValue, bThen, bExit);
535
536 // Fill then block
537 7 switchToBlock(bThen);
538
539 // Allocate new space on the heap
540 7 llvm::Function *unsafeAllocFct = stdFunctionManager.getAllocUnsafeLongFct();
541
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 7 const size_t typeSizeInBytes = module->getDataLayout().getTypeSizeInBits(pointeeType) / 8;
542 7 llvm::ConstantInt *typeSize = builder.getInt64(typeSizeInBytes);
543
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 7 llvm::Value *newHeapAddress = builder.CreateCall(unsafeAllocFct, {typeSize});
544 7 insertStore(newHeapAddress, fieldAddress);
545
546 // Copy data from the old heap storage to the new one
547 7 generateShallowCopy(originalHeapAddress, pointeeType, newHeapAddress, false);
548 7 insertJump(bExit);
549
550 // Switch to exit block
551 7 switchToBlock(bExit);
552
553 7 continue;
554 7 }
555
556 // Shallow copy
557 32 llvm::Type *type = fieldType.toLLVMType(sourceFile);
558 32 generateShallowCopy(originalFieldAddress, type, fieldAddress, false);
559 }
560 22 }
561
562 98 void IRGenerator::generateDefaultCopyCtor(const Function *copyCtorFunction) {
563
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 98 assert(copyCtorFunction->implicitDefault && copyCtorFunction->name == CTOR_FUNCTION_NAME);
564 120 const std::function<void()> generateBody = [&] { generateCopyCtorBodyPreamble(copyCtorFunction); };
565
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 98 generateImplicitProcedure(generateBody, copyCtorFunction);
566 98 }
567
568 111 void IRGenerator::generateDtorBodyPreamble(const Function *dtorFunction) const {
569 // Retrieve struct scope
570 111 Scope *structScope = dtorFunction->bodyScope->parent;
571
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 111 assert(structScope != nullptr);
572
573 // Get struct address
574
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 333 const SymbolTableEntry *thisEntry = dtorFunction->bodyScope->lookupStrict(THIS_VARIABLE_NAME);
575
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 111 assert(thisEntry != nullptr);
576 111 llvm::Value *thisPtrPtr = thisEntry->getAddress();
577
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 111 assert(thisPtrPtr != nullptr);
578 111 llvm::Value *thisPtr = nullptr;
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 111 llvm::Type *structType = thisEntry->getQualType().getBase().toLLVMType(sourceFile);
580
581 111 const size_t fieldCount = structScope->getFieldCount();
582
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 493 for (size_t i = 0; i < fieldCount; i++) {
583 382 const size_t fieldIdx = fieldCount - 1 - i; // Destruct fields in reverse order
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 382 const SymbolTableEntry *fieldSymbol = structScope->lookupField(fieldIdx);
585
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 382 assert(fieldSymbol != nullptr && fieldSymbol->isField());
586
587 // Call dtor for struct fields
588 382 const QualType &fieldType = fieldSymbol->getQualType();
589
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 382 if (fieldType.is(TY_STRUCT)) {
590 // Lookup dtor function and generate call if found
591
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 246 if (const Function *dtorFct = FunctionManager::lookup(fieldType.getBodyScope(), DTOR_FUNCTION_NAME, fieldType, {}, false))
592
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 73 generateCtorOrDtorCall(fieldSymbol, dtorFct, {});
593 82 continue;
594 82 }
595
596 // Deallocate fields, that are stored on the heap
597
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 300 if (fieldType.isHeap()) {
598 // Retrieve field address
599
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 74 if (!thisPtr)
600
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 136 thisPtr = insertLoad(builder.getPtrTy(), thisPtrPtr);
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 74 llvm::Value *fieldAddress = insertStructGEP(structType, thisPtr, fieldIdx);
602 // Call dealloc function
603 74 generateDeallocCall(fieldAddress);
604 }
605 }
606 111 }
607
608 113 void IRGenerator::generateDefaultDtor(const Function *dtorFunction) {
609
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 113 assert(dtorFunction->implicitDefault && dtorFunction->name == DTOR_FUNCTION_NAME);
610 224 const std::function<void()> generateBody = [&] { generateDtorBodyPreamble(dtorFunction); };
611
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 113 generateImplicitProcedure(generateBody, dtorFunction);
612 113 }
613
614 4 void IRGenerator::generateTestMain() {
615 // Collect all test functions
616 4 std::vector<const std::vector<const Function *> *> tests;
617
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 9 for (const auto &sourceFile : resourceManager.sourceFiles | std::views::values)
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 5 if (!sourceFile->testFunctions.empty())
619
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 5 tests.push_back(&sourceFile->testFunctions);
620
621 // Prepare printf function
622
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 4 llvm::Function *printfFct = stdFunctionManager.getPrintfFct();
623
624 // Prepare success and error messages
625
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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);
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 16 llvm::Constant *errorMsg = createGlobalStringConst("errorMsg", TEST_CASE_FAILED_MSG, *rootScope->codeLoc);
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 16 llvm::Constant *skippedMsg = createGlobalStringConst("skippedMsg", TEST_CASE_SKIPPED_MSG, *rootScope->codeLoc);
633
634 // Prepare entry for test main
635
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 4 QualType functionType(TY_FUNCTION);
636
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 4 functionType.setQualifiers(TypeQualifiers::of(TY_FUNCTION));
637
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 4 functionType.makePublic();
638
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 8 SymbolTableEntry entry(MAIN_FUNCTION_NAME, functionType, rootScope, nullptr, 0, false);
639
640 // Prepare test main function
641
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 12 Function testMain(MAIN_FUNCTION_NAME, &entry, QualType(TY_DYN), QualType(TY_INT), {}, {}, nullptr);
642 4 testMain.used = true; // Mark as used to prevent removal
643 4 testMain.implicitDefault = true;
644 4 testMain.mangleFunctionName = false;
645
646 // Prepare scope
647
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 4 rootScope->createChildScope(testMain.getScopeName(), ScopeType::FUNC_PROC_BODY, nullptr);
648
649 // Generate
650 ✗ const std::function<void()> generateBody = [&] {
651 // Prepare result variable
652 4 std::vector<llvm::Value *> testCaseResults;
653
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 4 testCaseResults.reserve(tests.size());
654
655 // Print start message
656 5 const auto accFct = [&](size_t sum, const std::vector<const Function *> *innerVector) { return sum + innerVector->size(); };
657 4 const size_t totalTestCount = std::accumulate(tests.begin(), tests.end(), 0, accFct);
658
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 4 builder.CreateCall(printfFct, {allStartMsg, builder.getInt32(totalTestCount), builder.getInt32(tests.size())});
659
660 // Generate a call to each test function
661
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 9 for (const std::vector<const Function *> *testSuite : tests) {
662 // Print test suite prologue
663
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 5 const std::string fileName = testSuite->front()->bodyScope->sourceFile->fileName;
664
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 10 llvm::Constant *fileNameValue = createGlobalStringConst("fileName", fileName, testSuite->front()->getDeclCodeLoc());
665
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 5 builder.CreateCall(printfFct, {fileStartMsg, builder.getInt32(testSuite->size()), fileNameValue});
666
667
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 15 for (const Function *testFunction : *testSuite) {
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 10 assert(testFunction->isNormalFunction());
669
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 10 assert(testFunction->paramList.empty());
670
671 // Retrieve attribute list for the test function
672
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 10 assert(testFunction->declNode->isFctOrProcDef());
673
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 10 const auto fctDefNode = spice_pointer_cast<FctDefBaseNode *>(testFunction->declNode);
674
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 10 assert(fctDefNode->attrs != nullptr);
675 10 const AttrLstNode *attrs = fctDefNode->attrs->attrLst;
676
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 20 assert(attrs->getAttrValueByName(ATTR_TEST)->boolValue); // The test attribute must be present
677
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 20 const CompileTimeValue *testSkipAttr = attrs->getAttrValueByName(ATTR_TEST_SKIP);
678
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 10 const bool skipTest = testSkipAttr && testSkipAttr->boolValue;
679
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 20 const CompileTimeValue *testNameAttr = attrs->getAttrValueByName(ATTR_TEST_NAME);
680
681 // Prepare test name
682
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 10 std::stringstream testName;
683
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 10 testName << testFunction->name;
684
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 10 if (testNameAttr)
685
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 1 testName << " (" << resourceManager.compileTimeStringValues.at(testNameAttr->stringValueOffset) << ")";
686
687 // Print test case run message
688
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 30 llvm::Constant *testNameValue = createGlobalStringConst("testName", testName.str(), testFunction->getDeclCodeLoc());
689
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 10 builder.CreateCall(printfFct, {runMsg, testNameValue});
690
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 10 if (skipTest) {
692 // Print test case skip message
693
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 1 builder.CreateCall(printfFct, {skippedMsg, testNameValue});
694 1 continue;
695 }
696
697 // Test function is not defined in the current module -> declare it
698
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 9 const std::string mangledName = testFunction->getMangledName();
699
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 9 if (!module->getFunction(mangledName)) {
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 2 assert(testFunction->returnType.is(TY_BOOL));
701
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 2 assert(testFunction->paramList.empty());
702
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 2 llvm::FunctionType *fctType = llvm::FunctionType::get(builder.getInt1Ty(), {}, false);
703
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 2 module->getOrInsertFunction(mangledName, fctType);
704 }
705
706 // Call test function
707
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 9 llvm::Function *callee = module->getFunction(mangledName);
708
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 9 assert(callee != nullptr);
709
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 9 llvm::Value *testCaseResult = builder.CreateCall(callee);
710
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 9 testCaseResults.push_back(testCaseResult);
711
712 // Print test case result message
713
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 9 llvm::Value *message = builder.CreateSelect(testCaseResult, successMsg, errorMsg);
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 9 builder.CreateCall(printfFct, {message, testNameValue});
715
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 10 }
716
717 // Print test suite epilogue
718
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 5 builder.CreateCall(printfFct, {fileEndMsg, builder.getInt32(testSuite->size()), fileNameValue});
719 5 }
720
721 // Print end message
722
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 4 builder.CreateCall(printfFct, {allEndMsg, builder.getInt32(totalTestCount), builder.getInt32(tests.size())});
723
724 // Compute overall result
725
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 4 llvm::Value *overallResult = builder.getTrue();
726
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 13 for (llvm::Value *testCaseResult : testCaseResults)
727
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 9 overallResult = builder.CreateAnd(overallResult, testCaseResult);
728
729 // Return code must be 0 for success and 1 for failure, so we need to invert the result and zero extend to 32 bit
730
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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);
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 8 };
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 4 generateImplicitFunction(generateBody, &testMain);
735 4 }
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737 } // namespace spice::compiler
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