GCC Code Coverage Report

Directory: ../
File: src/irgenerator/GenImplicit.cpp
Date: 2025-03-05 01:50:32
Exec Total Coverage
Lines: 354 406 87.2%
Functions: 20 21 95.2%
Branches: 464 982 47.3%
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.toLLVMType(sourceFile), 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.toLLVMType(sourceFile), 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(src->getType());
49 ✗ insertStore(src, newActualArg);
50 ✗ src = newActualArg;
51 }
52 13 return src;
53 }
54
55 24240 void IRGenerator::generateScopeCleanup(const StmtLstNode *node) const {
56 // Do not clean up if the block is already terminated
57
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 24240 if (blockAlreadyTerminated)
58 8845 return;
59
60 // Call all dtor functions
61 15395 const auto &[dtorFunctionsToCall, heapVarsToFree] = node->resourcesToCleanup.at(manIdx);
62
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 16278 for (auto [entry, dtor] : dtorFunctionsToCall)
63
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 883 generateCtorOrDtorCall(entry, dtor, {});
64
65 // Deallocate all heap variables that go out of scope and are currently owned
66
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 15398 for (const SymbolTableEntry *entry : heapVarsToFree)
67
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 3 generateDeallocCall(entry->getAddress());
68
69 // Generate lifetime end markers
70
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 15395 if (cliOptions.useLifetimeMarkers) {
71 ✗ for (const SymbolTableEntry *var : currentScope->getVarsGoingOutOfScope()) {
72 ✗ llvm::Value *address = var->getAddress();
73 ✗ if (address == nullptr)
74 ✗ continue;
75 ✗ const uint64_t sizeInBytes = module->getDataLayout().getTypeAllocSize(var->getQualType().toLLVMType(sourceFile));
76 ✗ builder.CreateLifetimeEnd(address, builder.getInt64(sizeInBytes));
77 ✗ }
78 }
79 }
80
81 ✗ llvm::Value *IRGenerator::generateFctCall(const Function *fct, const std::vector<llvm::Value *> &args) const {
82 // Retrieve metadata for the function
83 ✗ const std::string mangledName = fct->getMangledName();
84
85 // Function is not defined in the current module -> declare it
86 ✗ if (!module->getFunction(mangledName)) {
87 ✗ std::vector<llvm::Type *> paramTypes;
88 ✗ for (const llvm::Value *argValue : args)
89 ✗ paramTypes.push_back(argValue->getType());
90 ✗ llvm::Type *returnType = fct->returnType.toLLVMType(sourceFile);
91 ✗ llvm::FunctionType *fctType = llvm::FunctionType::get(returnType, paramTypes, false);
92 ✗ module->getOrInsertFunction(mangledName, fctType);
93 ✗ }
94
95 // Get callee function
96 ✗ llvm::Function *callee = module->getFunction(mangledName);
97 ✗ assert(callee != nullptr);
98
99 // Generate function call
100 ✗ return builder.CreateCall(callee, args);
101 ✗ }
102
103 1492 void IRGenerator::generateProcCall(const Function *proc, std::vector<llvm::Value *> &args) const {
104 // Retrieve metadata for the function
105
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 1492 const std::string mangledName = proc->getMangledName();
106
107 // Function is not defined in the current module -> declare it
108
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 1492 if (!module->getFunction(mangledName)) {
109 354 std::vector<llvm::Type *> paramTypes;
110
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 780 for (const llvm::Value *argValue : args)
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 426 paramTypes.push_back(argValue->getType());
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 354 llvm::FunctionType *fctType = llvm::FunctionType::get(builder.getVoidTy(), paramTypes, false);
113
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 354 module->getOrInsertFunction(mangledName, fctType);
114 354 }
115
116 // Get callee function
117
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 1492 llvm::Function *callee = module->getFunction(mangledName);
118
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 1492 assert(callee != nullptr);
119
120 // Generate function call
121
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 1492 builder.CreateCall(callee, args);
122 1492 }
123
124 1130 void IRGenerator::generateCtorOrDtorCall(const SymbolTableEntry *entry, const Function *ctorOrDtor,
125 const std::vector<llvm::Value *> &args) const {
126 // Retrieve address of the struct variable. For fields this is the 'this' variable, otherwise use the normal address
127 llvm::Value *structAddr;
128
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 1130 if (entry->isField()) {
129 // Take 'this' var as base pointer
130
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 312 const SymbolTableEntry *thisVar = currentScope->lookupStrict(THIS_VARIABLE_NAME);
131
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 104 assert(thisVar != nullptr);
132
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 104 assert(thisVar->getQualType().isPtr() && thisVar->getQualType().getContained().is(TY_STRUCT));
133
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 104 llvm::Type *thisType = thisVar->getQualType().getContained().toLLVMType(sourceFile);
134
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 208 llvm::Value *thisPtr = insertLoad(builder.getPtrTy(), thisVar->getAddress());
135 // Add field offset
136
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 104 structAddr = insertStructGEP(thisType, thisPtr, entry->orderIndex);
137 } else {
138 1026 structAddr = entry->getAddress();
139 // For optional parameter initializers we need this exception
140
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 1026 if (!structAddr)
141 5 return;
142 }
143
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 1125 assert(structAddr != nullptr);
144 1125 generateCtorOrDtorCall(structAddr, ctorOrDtor, args);
145 }
146
147 1492 void IRGenerator::generateCtorOrDtorCall(llvm::Value *structAddr, const Function *ctorOrDtor,
148 const std::vector<llvm::Value *> &args) const {
149 // Build parameter list
150
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 2984 std::vector argValues = {structAddr};
151
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 1492 argValues.insert(argValues.end(), args.begin(), args.end());
152
153 // Generate function call
154
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 1492 generateProcCall(ctorOrDtor, argValues);
155 1492 }
156
157 59 void IRGenerator::generateDeallocCall(llvm::Value *variableAddress) const {
158 // Abort if the address is not set. This can happen when leaving the scope of a dtor, which already freed the heap memory
159
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 59 if (!variableAddress)
160 1 return;
161
162 // In case of string runtime, call free manually. Otherwise, use the memory_rt implementation of sDealloc()
163
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 116 if (sourceFile->isStringRT()) {
164 ✗ llvm::Function *freeFct = stdFunctionManager.getFreeFct();
165 ✗ builder.CreateCall(freeFct, variableAddress);
166 } else {
167 58 llvm::Function *deallocFct = stdFunctionManager.getDeallocBytePtrRefFct();
168
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 58 builder.CreateCall(deallocFct, variableAddress);
169 }
170 }
171
172 2 llvm::Function *IRGenerator::generateImplicitFunction(const std::function<void()> &generateBody, const Function *spiceFunc) {
173 // Only focus on method procedures
174
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 2 const ASTNode *node = spiceFunc->entry->declNode;
175
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 2 assert(spiceFunc->isFunction());
176
177 // Only generate if used
178
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 2 if (!spiceFunc->used)
179 ✗ return nullptr;
180
181 // Retrieve return type
182
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 2 llvm::Type *returnType = spiceFunc->returnType.toLLVMType(sourceFile);
183
184 // Get 'this' entry
185 2 std::vector<llvm::Type *> paramTypes;
186
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 2 SymbolTableEntry *thisEntry = nullptr;
187
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 2 if (spiceFunc->isMethod()) {
188 ✗ thisEntry = spiceFunc->bodyScope->lookupStrict(THIS_VARIABLE_NAME);
189 ✗ assert(thisEntry != nullptr);
190 ✗ paramTypes.push_back(builder.getPtrTy());
191 }
192
193 // Get parameter types
194
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 2 for (const auto &[qualType, isOptional] : spiceFunc->paramList) {
195 ✗ assert(!isOptional);
196 ✗ paramTypes.push_back(qualType.toLLVMType(sourceFile));
197 }
198
199 // Get function linkage
200
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 2 const bool isPublic = spiceFunc->entry->getQualType().isPublic();
201
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 2 const llvm::GlobalValue::LinkageTypes linkage = isPublic ? llvm::Function::ExternalLinkage : llvm::Function::PrivateLinkage;
202
203 // Create function
204
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 2 const std::string mangledName = spiceFunc->getMangledName();
205
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 2 llvm::FunctionType *fctType = llvm::FunctionType::get(returnType, paramTypes, false);
206
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 2 llvm::Function *fct = llvm::Function::Create(fctType, llvm::Function::ExternalLinkage, mangledName, module);
207
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 2 fct->setLinkage(linkage);
208
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 2 fct->setDoesNotRecurse();
209
210 // Set attributes to 'this' param
211
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 2 if (spiceFunc->isMethod()) {
212 ✗ fct->addParamAttr(0, llvm::Attribute::NoUndef);
213 ✗ fct->addParamAttr(0, llvm::Attribute::NonNull);
214 ✗ assert(thisEntry != nullptr);
215 ✗ llvm::Type *structType = thisEntry->getQualType().getContained().toLLVMType(sourceFile);
216 ✗ assert(structType != nullptr);
217 ✗ fct->addDereferenceableParamAttr(0, module->getDataLayout().getTypeStoreSize(structType));
218 ✗ fct->addParamAttr(0, llvm::Attribute::getWithAlignment(context, module->getDataLayout().getABITypeAlign(structType)));
219 }
220
221 // Add debug info
222
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 2 diGenerator.generateFunctionDebugInfo(fct, spiceFunc);
223
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 2 if (node != nullptr)
224 ✗ diGenerator.setSourceLocation(node);
225
226 // Change to body scope
227
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 2 changeToScope(spiceFunc->getSignature(false), ScopeType::FUNC_PROC_BODY);
228
229 // Create entry block
230
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 2 llvm::BasicBlock *bEntry = createBlock();
231
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 2 switchToBlock(bEntry, fct);
232
233 // Reset alloca insert markers to this block
234 2 allocaInsertBlock = bEntry;
235
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 2 allocaInsertInst = nullptr;
236
237 // Store first argument to 'this' symbol
238
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 2 if (spiceFunc->isMethod()) {
239 ✗ assert(thisEntry != nullptr);
240 // Allocate space for the parameter
241 ✗ llvm::Value *thisAddress = insertAlloca(paramTypes.front(), THIS_VARIABLE_NAME);
242 // Update the symbol table entry
243 ✗ thisEntry->updateAddress(thisAddress);
244 // Store the value at the new address
245 ✗ insertStore(fct->arg_begin(), thisAddress);
246 // Generate debug info
247 ✗ diGenerator.generateLocalVarDebugInfo(THIS_VARIABLE_NAME, thisAddress, 1);
248 }
249
250 // Generate body
251
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 2 generateBody();
252
253 // Conclude debug info for function
254
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 2 diGenerator.concludeFunctionDebugInfo();
255
256 // Verify function
257 // Use the code location of the declaration node if available. Otherwise, (e.g. in case of test main) use an artificial code loc
258
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 2 const CodeLoc codeLoc = node != nullptr ? node->codeLoc : CodeLoc(1, 1, sourceFile);
259
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 2 verifyFunction(fct, codeLoc);
260
261 // Change to parent scope
262
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 2 changeToParentScope(ScopeType::FUNC_PROC_BODY);
263
264 2 return fct;
265 2 }
266
267 205 llvm::Function *IRGenerator::generateImplicitProcedure(const std::function<void()> &generateBody, const Function *spiceProc) {
268 // Only focus on method procedures
269 205 const ASTNode *node = spiceProc->entry->declNode;
270
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 205 assert(node != nullptr);
271
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 205 assert(spiceProc->isProcedure());
272
273 // Only generate if used
274
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 205 if (!spiceProc->used)
275 70 return nullptr;
276
277 // Get 'this' entry
278 135 std::vector<llvm::Type *> paramTypes;
279
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 135 SymbolTableEntry *thisEntry = nullptr;
280
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 135 if (spiceProc->isMethod()) {
281
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 405 thisEntry = spiceProc->bodyScope->lookupStrict(THIS_VARIABLE_NAME);
282
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 135 assert(thisEntry != nullptr);
283
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 135 paramTypes.push_back(builder.getPtrTy());
284 }
285
286 // Get parameter types
287
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 155 for (const auto &[qualType, isOptional] : spiceProc->paramList) {
288
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 20 assert(!isOptional);
289
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 20 paramTypes.push_back(qualType.toLLVMType(sourceFile));
290 }
291
292 // Get function linkage
293
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 135 const bool isPublic = spiceProc->entry->getQualType().isPublic();
294
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 135 const llvm::GlobalValue::LinkageTypes linkage = isPublic ? llvm::Function::ExternalLinkage : llvm::Function::PrivateLinkage;
295
296 // Create function
297
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 135 const std::string mangledName = spiceProc->getMangledName();
298
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 135 llvm::FunctionType *fctType = llvm::FunctionType::get(builder.getVoidTy(), paramTypes, false);
299
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 135 llvm::Function *fct = llvm::Function::Create(fctType, llvm::Function::ExternalLinkage, mangledName, module);
300
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 135 fct->setLinkage(linkage);
301
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 135 fct->setDoesNotRecurse();
302
303 // Set attributes to 'this' param
304
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 135 if (spiceProc->isMethod()) {
305
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 135 fct->addParamAttr(0, llvm::Attribute::NoUndef);
306
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 135 fct->addParamAttr(0, llvm::Attribute::NonNull);
307
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 135 assert(thisEntry != nullptr);
308
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 135 llvm::Type *structType = thisEntry->getQualType().getContained().toLLVMType(sourceFile);
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 135 assert(structType != nullptr);
310
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 135 fct->addDereferenceableParamAttr(0, module->getDataLayout().getTypeStoreSize(structType));
311
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 135 fct->addParamAttr(0, llvm::Attribute::getWithAlignment(context, module->getDataLayout().getABITypeAlign(structType)));
312 }
313
314 // Add debug info
315
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 135 diGenerator.generateFunctionDebugInfo(fct, spiceProc);
316
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 135 diGenerator.setSourceLocation(node);
317
318 // Change to body scope
319
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 135 changeToScope(spiceProc->getSignature(false), ScopeType::FUNC_PROC_BODY);
320
321 // Create entry block
322
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 135 llvm::BasicBlock *bEntry = createBlock();
323
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 135 switchToBlock(bEntry, fct);
324
325 // Reset alloca insert markers to this block
326 135 allocaInsertBlock = bEntry;
327
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 135 allocaInsertInst = nullptr;
328
329 // Store first argument to 'this' symbol
330
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 135 if (spiceProc->isMethod()) {
331
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 135 assert(thisEntry != nullptr);
332 // Allocate space for the parameter
333
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 135 llvm::Value *thisAddress = insertAlloca(paramTypes.front(), THIS_VARIABLE_NAME);
334 // Update the symbol table entry
335
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 135 thisEntry->updateAddress(thisAddress);
336 // Store the value at the new address
337
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 135 insertStore(fct->arg_begin(), thisAddress);
338 // Generate debug info
339
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 405 diGenerator.generateLocalVarDebugInfo(THIS_VARIABLE_NAME, thisAddress, 1);
340 }
341
342 // Generate body
343
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 135 generateBody();
344
345 // Create return instruction
346
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 135 builder.CreateRetVoid();
347
348 // Conclude debug info for function
349
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 135 diGenerator.concludeFunctionDebugInfo();
350
351 // Verify function
352
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 135 verifyFunction(fct, node->codeLoc);
353
354 // Change to parent scope
355
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 135 changeToParentScope(ScopeType::FUNC_PROC_BODY);
356
357 135 return fct;
358 135 }
359
360 1110 void IRGenerator::generateCtorBodyPreamble(Scope *bodyScope) {
361 // Retrieve struct scope
362 1110 Scope *structScope = bodyScope->parent;
363
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 1110 assert(structScope != nullptr);
364
365 // Get struct address
366
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 3330 const SymbolTableEntry *thisEntry = bodyScope->lookupStrict(THIS_VARIABLE_NAME);
367
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 1110 assert(thisEntry != nullptr);
368
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 1110 llvm::Value *thisPtrPtr = thisEntry->getAddress();
369
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 1110 assert(thisPtrPtr != nullptr);
370 1110 llvm::Value *thisPtr = nullptr;
371
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 1110 const QualType structSymbolType = thisEntry->getQualType().getBase();
372
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 1110 llvm::Type *structType = structSymbolType.toLLVMType(sourceFile);
373
374 // Store VTable to first struct field if required
375
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 1110 const Struct *spiceStruct = structSymbolType.getStruct(nullptr);
376
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 1110 assert(spiceStruct != nullptr);
377
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 1110 if (spiceStruct->vTableData.vtable != nullptr) {
378
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 204 assert(spiceStruct->vTableData.vtableType != nullptr);
379 // Store VTable to field address at index 0
380
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 204 thisPtr = insertLoad(builder.getPtrTy(), thisPtrPtr);
381
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 204 llvm::Value *indices[3] = {builder.getInt64(0), builder.getInt32(0), builder.getInt32(2)};
382
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 204 llvm::Value *gepResult = insertInBoundsGEP(spiceStruct->vTableData.vtableType, spiceStruct->vTableData.vtable, indices);
383
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 204 insertStore(gepResult, thisPtr);
384 }
385
386
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 1110 const size_t fieldCount = structScope->getFieldCount();
387
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 3924 for (size_t i = 0; i < fieldCount; i++) {
388
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 2814 const SymbolTableEntry *fieldSymbol = structScope->lookupField(i);
389
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 2814 assert(fieldSymbol != nullptr && fieldSymbol->isField());
390
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 2814 if (fieldSymbol->isImplicitField)
391 165 continue;
392
393 // Call ctor for struct fields
394
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 2649 const QualType &fieldType = fieldSymbol->getQualType();
395
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 2649 const auto fieldNode = spice_pointer_cast<FieldNode *>(fieldSymbol->declNode);
396
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 2649 if (fieldType.is(TY_STRUCT)) {
397 // Lookup ctor function and call if available
398
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 323 Scope *matchScope = fieldType.getBodyScope();
399
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 969 if (const Function *ctorFunction = FunctionManager::lookup(matchScope, CTOR_FUNCTION_NAME, fieldType, {}, false)) {
400
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 273 if (!thisPtr)
401
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 166 thisPtr = insertLoad(builder.getPtrTy(), thisPtrPtr);
402
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 273 llvm::Value *fieldAddress = insertStructGEP(structType, thisPtr, i);
403
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 273 generateCtorOrDtorCall(fieldAddress, ctorFunction, {});
404 }
405 323 continue;
406 323 }
407
408 // Store default field values
409
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 2326 if (fieldNode->defaultValue != nullptr || cliOptions.buildMode != RELEASE) {
410 // Retrieve field address
411
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 2326 if (!thisPtr)
412
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 1626 thisPtr = insertLoad(builder.getPtrTy(), thisPtrPtr);
413
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 2326 llvm::Value *fieldAddress = insertStructGEP(structType, thisPtr, i);
414 // Retrieve default value
415 llvm::Value *value;
416
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 2326 if (fieldNode->defaultValue != nullptr) {
417 // To resolve the default value, we need to temporarily change to the manifestation of the current struct instantiation
418 251 const size_t oldManIdx = manIdx; // Save manifestation index
419 251 manIdx = spiceStruct->manifestationIndex;
420
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 251 value = resolveValue(fieldNode->defaultValue);
421 251 manIdx = oldManIdx; // Restore manifestation index
422 } else {
423
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 2075 assert(cliOptions.buildMode == DEBUG || cliOptions.buildMode == TEST);
424
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 2075 value = getDefaultValueForSymbolType(fieldType);
425 }
426 // Store default value
427
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 2326 insertStore(value, fieldAddress);
428 }
429 }
430 1110 }
431
432 31 void IRGenerator::generateDefaultCtor(const Function *ctorFunction) {
433
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 31 assert(ctorFunction->implicitDefault && ctorFunction->name == CTOR_FUNCTION_NAME);
434 58 const std::function<void()> generateBody = [&] { generateCtorBodyPreamble(ctorFunction->bodyScope); };
435
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 31 generateImplicitProcedure(generateBody, ctorFunction);
436 31 }
437
438 20 void IRGenerator::generateCopyCtorBodyPreamble(const Function *copyCtorFunction) {
439 // Retrieve struct scope
440 20 Scope *structScope = copyCtorFunction->bodyScope->parent;
441
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 20 assert(structScope != nullptr);
442
443 // Get struct address
444
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 60 const SymbolTableEntry *thisEntry = copyCtorFunction->bodyScope->lookupStrict(THIS_VARIABLE_NAME);
445
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 20 assert(thisEntry != nullptr);
446 20 llvm::Value *thisPtrPtr = thisEntry->getAddress();
447
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 20 assert(thisPtrPtr != nullptr);
448 20 llvm::Value *thisPtr = nullptr;
449
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 20 llvm::Type *structType = thisEntry->getQualType().getBase().toLLVMType(sourceFile);
450
451 // Retrieve the value of the original struct, which is the only function parameter
452 20 llvm::Value *originalThisPtr = builder.GetInsertBlock()->getParent()->getArg(1);
453
454 20 const size_t fieldCount = structScope->getFieldCount();
455
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 94 for (size_t i = 0; i < fieldCount; i++) {
456
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 74 const SymbolTableEntry *fieldSymbol = structScope->lookupField(i);
457
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 74 assert(fieldSymbol != nullptr && fieldSymbol->isField());
458
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 74 if (fieldSymbol->isImplicitField)
459 4 continue;
460
461 // Retrieve the address of the original field (copy source)
462
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 70 llvm::Value *originalFieldAddress = insertStructGEP(structType, originalThisPtr, i);
463
464 70 const QualType &fieldType = fieldSymbol->getQualType();
465
466 // Call copy ctor for struct fields
467
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 70 if (fieldType.is(TY_STRUCT) && !fieldType.isTriviallyCopyable(nullptr)) {
468 // Lookup copy ctor function and call if available
469
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 39 Scope *matchScope = fieldType.getBodyScope();
470
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 117 const ArgList args = {{fieldType.toConstRef(nullptr), false /* we have the field as storage */}};
471
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 39 const Function *copyCtor = FunctionManager::lookup(matchScope, CTOR_FUNCTION_NAME, fieldType, args, false);
472
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 39 assert(copyCtor != nullptr);
473
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 78 generateCtorOrDtorCall(fieldSymbol, copyCtor, {originalFieldAddress});
474 39 continue;
475 39 }
476
477 // Retrieve the address of the new field (copy dest)
478
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 31 if (!thisPtr)
479
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 22 thisPtr = insertLoad(builder.getPtrTy(), thisPtrPtr);
480
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 31 llvm::Value *fieldAddress = insertStructGEP(structType, thisPtr, i);
481
482 // For owning heap fields, copy the underlying heap storage
483
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 31 if (fieldType.isHeap()) {
484
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 5 assert(fieldType.isPtr());
485
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 5 llvm::Type *pointeeType = fieldType.getContained().toLLVMType(sourceFile);
486
487 // Retrieve original heap address
488
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 10 llvm::Value *originalHeapAddress = insertLoad(builder.getPtrTy(), originalFieldAddress);
489
490 // Insert check for nullptr
491
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 10 llvm::BasicBlock *bThen = createBlock("nullptrcheck.then");
492
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 5 llvm::BasicBlock *bExit = createBlock("nullptrcheck.exit");
493
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 5 llvm::Value *condValue = builder.CreateICmpNE(originalHeapAddress, llvm::Constant::getNullValue(builder.getPtrTy()));
494 5 insertCondJump(condValue, bThen, bExit);
495
496 // Fill then block
497 5 switchToBlock(bThen);
498
499 // Allocate new space on the heap
500 5 llvm::Function *unsafeAllocFct = stdFunctionManager.getAllocUnsafeLongFct();
501
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 5 const size_t typeSizeInBytes = module->getDataLayout().getTypeSizeInBits(pointeeType) / 8;
502 5 llvm::ConstantInt *typeSize = builder.getInt64(typeSizeInBytes);
503
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 5 llvm::Value *newHeapAddress = builder.CreateCall(unsafeAllocFct, {typeSize});
504 5 insertStore(newHeapAddress, fieldAddress);
505
506 // Copy data from the old heap storage to the new one
507 5 generateShallowCopy(originalHeapAddress, pointeeType, newHeapAddress, false);
508 5 insertJump(bExit);
509
510 // Switch to exit block
511 5 switchToBlock(bExit);
512
513 5 continue;
514 5 }
515
516 // Shallow copy
517 26 llvm::Type *type = fieldType.toLLVMType(sourceFile);
518 26 generateShallowCopy(originalFieldAddress, type, fieldAddress, false);
519 }
520 20 }
521
522 84 void IRGenerator::generateDefaultCopyCtor(const Function *copyCtorFunction) {
523
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 84 assert(copyCtorFunction->implicitDefault && copyCtorFunction->name == CTOR_FUNCTION_NAME);
524 104 const std::function<void()> generateBody = [&] { generateCopyCtorBodyPreamble(copyCtorFunction); };
525
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 84 generateImplicitProcedure(generateBody, copyCtorFunction);
526 84 }
527
528 88 void IRGenerator::generateDtorBodyPreamble(const Function *dtorFunction) const {
529 // Retrieve struct scope
530 88 Scope *structScope = dtorFunction->bodyScope->parent;
531
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 88 assert(structScope != nullptr);
532
533 // Get struct address
534
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 264 const SymbolTableEntry *thisEntry = dtorFunction->bodyScope->lookupStrict(THIS_VARIABLE_NAME);
535
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 88 assert(thisEntry != nullptr);
536 88 llvm::Value *thisPtrPtr = thisEntry->getAddress();
537
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 88 assert(thisPtrPtr != nullptr);
538 88 llvm::Value *thisPtr = nullptr;
539
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 88 llvm::Type *structType = thisEntry->getQualType().getBase().toLLVMType(sourceFile);
540
541 88 const size_t fieldCount = structScope->getFieldCount();
542
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 399 for (size_t i = 0; i < fieldCount; i++) {
543
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 311 const SymbolTableEntry *fieldSymbol = structScope->lookupField(i);
544
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 311 assert(fieldSymbol != nullptr && fieldSymbol->isField());
545
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 311 if (fieldSymbol->isImplicitField)
546 49 continue;
547
548 // Call dtor for struct fields
549 262 const QualType &fieldType = fieldSymbol->getQualType();
550
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 262 if (fieldType.is(TY_STRUCT)) {
551 // Lookup dtor function and generate call if found
552
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 213 if (const Function *dtorFct = FunctionManager::lookup(fieldType.getBodyScope(), DTOR_FUNCTION_NAME, fieldType, {}, false))
553
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 65 generateCtorOrDtorCall(fieldSymbol, dtorFct, {});
554 71 continue;
555 71 }
556
557 // Deallocate fields, that are stored on the heap
558
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 191 if (fieldType.isHeap()) {
559 // Retrieve field address
560
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 56 if (!thisPtr)
561
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 104 thisPtr = insertLoad(builder.getPtrTy(), thisPtrPtr);
562
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 56 llvm::Value *fieldAddress = insertStructGEP(structType, thisPtr, i);
563 // Call dealloc function
564 56 generateDeallocCall(fieldAddress);
565 }
566 }
567 88 }
568
569 90 void IRGenerator::generateDefaultDtor(const Function *dtorFunction) {
570
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 90 assert(dtorFunction->implicitDefault && dtorFunction->name == DTOR_FUNCTION_NAME);
571 178 const std::function<void()> generateBody = [&] { generateDtorBodyPreamble(dtorFunction); };
572
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 90 generateImplicitProcedure(generateBody, dtorFunction);
573 90 }
574
575 2 void IRGenerator::generateTestMain() {
576 // Collect all test functions
577 2 std::vector<const std::vector<const Function *> *> tests;
578
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 5 for (const auto &sourceFile : resourceManager.sourceFiles | std::views::values)
579
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 3 if (!sourceFile->testFunctions.empty())
580
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 3 tests.push_back(&sourceFile->testFunctions);
581
582 // Prepare printf function
583
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 2 llvm::Function *printfFct = stdFunctionManager.getPrintfFct();
584
585 // Prepare success and error messages
586
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 8 llvm::Constant *allStartMsg = createGlobalStringConst("allStartMsg", TEST_ALL_START_MSG, *rootScope->codeLoc);
587
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 8 llvm::Constant *allEndMsg = createGlobalStringConst("allEndMsg", TEST_ALL_END_MSG, *rootScope->codeLoc);
588
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 8 llvm::Constant *fileStartMsg = createGlobalStringConst("fileStartMsg", TEST_FILE_START_MSG, *rootScope->codeLoc);
589
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 8 llvm::Constant *fileEndMsg = createGlobalStringConst("fileEndMsg", TEST_FILE_END_MSG, *rootScope->codeLoc);
590
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 8 llvm::Constant *runMsg = createGlobalStringConst("runMsg", TEST_CASE_RUN_MSG, *rootScope->codeLoc);
591
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 8 llvm::Constant *successMsg = createGlobalStringConst("successMsg", TEST_CASE_SUCCESS_MSG, *rootScope->codeLoc);
592
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 8 llvm::Constant *errorMsg = createGlobalStringConst("errorMsg", TEST_CASE_FAILED_MSG, *rootScope->codeLoc);
593
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 8 llvm::Constant *skippedMsg = createGlobalStringConst("skippedMsg", TEST_CASE_SKIPPED_MSG, *rootScope->codeLoc);
594
595 // Prepare entry for test main
596
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 2 QualType functionType(TY_FUNCTION);
597
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 2 functionType.setQualifiers(TypeQualifiers::of(TY_FUNCTION));
598
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 2 functionType.makePublic();
599
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 4 SymbolTableEntry entry(MAIN_FUNCTION_NAME, functionType, rootScope, nullptr, 0, false);
600
601 // Prepare test main function
602
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 6 Function testMain(MAIN_FUNCTION_NAME, &entry, QualType(TY_DYN), QualType(TY_INT), {}, {}, nullptr);
603 2 testMain.used = true; // Mark as used to prevent removal
604 2 testMain.implicitDefault = true;
605 2 testMain.mangleFunctionName = false;
606
607 // Prepare scope
608
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 2 rootScope->createChildScope(testMain.getSignature(false), ScopeType::FUNC_PROC_BODY, nullptr);
609
610 // Generate
611 ✗ const std::function<void()> generateBody = [&] {
612 // Prepare result variable
613
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 2 llvm::Type *i32Ty = builder.getInt32Ty();
614
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 4 llvm::Value *overallResult = insertAlloca(i32Ty, RETURN_VARIABLE_NAME);
615
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 2 insertStore(builder.getTrue(), overallResult);
616
617 // Print start message
618 3 const auto accFct = [&](size_t sum, const std::vector<const Function *> *innerVector) { return sum + innerVector->size(); };
619 2 const size_t totalTestCount = std::accumulate(tests.begin(), tests.end(), 0, accFct);
620
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 2 builder.CreateCall(printfFct, {allStartMsg, builder.getInt32(totalTestCount), builder.getInt32(tests.size())});
621
622 // Generate a call to each test function
623
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 5 for (const std::vector<const Function *> *testSuite : tests) {
624 // Print test suite prologue
625
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 3 const std::string fileName = testSuite->front()->bodyScope->sourceFile->fileName;
626
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 6 llvm::Constant *fileNameValue = createGlobalStringConst("fileName", fileName, testSuite->front()->getDeclCodeLoc());
627
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 3 builder.CreateCall(printfFct, {fileStartMsg, builder.getInt32(testSuite->size()), fileNameValue});
628
629
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 11 for (const Function *testFunction : *testSuite) {
630
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 8 assert(testFunction->isNormalFunction());
631
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 8 assert(testFunction->paramList.empty());
632
633 // Retrieve attribute list for the test function
634
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 8 assert(testFunction->declNode->isFctOrProcDef());
635
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 8 const auto fctDefNode = spice_pointer_cast<FctDefBaseNode *>(testFunction->declNode);
636
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 8 assert(fctDefNode->attrs != nullptr);
637 8 const AttrLstNode *attrs = fctDefNode->attrs->attrLst;
638
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 16 assert(attrs->getAttrValueByName(ATTR_TEST)->boolValue); // The test attribute must be present
639
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 16 const CompileTimeValue *testSkipAttr = attrs->getAttrValueByName(ATTR_TEST_SKIP);
640
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 8 const bool skipTest = testSkipAttr && testSkipAttr->boolValue;
641
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 16 const CompileTimeValue *testNameAttr = attrs->getAttrValueByName(ATTR_TEST_NAME);
642
643 // Prepare test name
644
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 8 std::stringstream testName;
645
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 8 testName << testFunction->name;
646
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 8 if (testNameAttr)
647
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 1 testName << " (" << resourceManager.compileTimeStringValues.at(testNameAttr->stringValueOffset) << ")";
648
649 // Print test case run message
650
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 24 llvm::Constant *testNameValue = createGlobalStringConst("testName", testName.str(), testFunction->getDeclCodeLoc());
651
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 8 builder.CreateCall(printfFct, {runMsg, testNameValue});
652
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 8 if (skipTest) {
654 // Print test case skip message
655
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 1 builder.CreateCall(printfFct, {skippedMsg, testNameValue});
656 1 continue;
657 }
658
659 // Test function is not defined in the current module -> declare it
660
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 7 const std::string mangledName = testFunction->getMangledName();
661
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 7 if (!module->getFunction(mangledName)) {
662
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 2 assert(testFunction->returnType.is(TY_BOOL));
663
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 2 assert(testFunction->paramList.empty());
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 2 llvm::FunctionType *fctType = llvm::FunctionType::get(builder.getInt1Ty(), {}, false);
665
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 2 module->getOrInsertFunction(mangledName, fctType);
666 }
667
668 // Call test function
669
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 7 llvm::Function *callee = module->getFunction(mangledName);
670
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 7 assert(callee != nullptr);
671
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 7 llvm::Value *testCaseResult = builder.CreateCall(callee);
672
673 // Update result variable
674
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 14 llvm::Value *oldResult = insertLoad(i32Ty, overallResult);
675
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 7 llvm::Value *newResult = builder.CreateAnd(oldResult, builder.CreateZExt(testCaseResult, i32Ty));
676
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 7 insertStore(newResult, overallResult);
677
678 // Print test case result message
679
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 7 llvm::Value *message = builder.CreateSelect(testCaseResult, successMsg, errorMsg);
680
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 7 builder.CreateCall(printfFct, {message, testNameValue});
681
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 8 }
682
683 // Print test suite epilogue
684
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 3 builder.CreateCall(printfFct, {fileEndMsg, builder.getInt32(testSuite->size()), fileNameValue});
685 3 }
686
687 // Print end message
688
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 2 builder.CreateCall(printfFct, {allEndMsg, builder.getInt32(totalTestCount), builder.getInt32(tests.size())});
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690 // Return result
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 4 llvm::Value *finalResult = insertLoad(i32Ty, overallResult);
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 2 builder.CreateRet(finalResult);
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 4 };
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 2 generateImplicitFunction(generateBody, &testMain);
695 2 }
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697 } // namespace spice::compiler
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