GCC Code Coverage Report

Directory: ../
File: src/irgenerator/GenTopLevelDefinitions.cpp
Date: 2025-12-19 06:54:40
Coverage Exec Excl Total
Lines: 96.9% 372 0 384
Functions: 100.0% 17 0 17
Branches: 58.0% 455 0 784
Line Branch Exec Source
1 // Copyright (c) 2021-2025 ChilliBits. All rights reserved.
2
3 #include "IRGenerator.h"
4
5 #include <llvm/IR/Module.h>
6 #include <llvm/Target/TargetLoweringObjectFile.h>
7
8 #include <SourceFile.h>
9 #include <ast/ASTNodes.h>
10 #include <ast/Attributes.h>
11 #include <driver/Driver.h>
12 #include <irgenerator/NameMangling.h>
13 #include <symboltablebuilder/SymbolTableBuilder.h>
14
15 namespace spice::compiler {
16
17 253 std::any IRGenerator::visitMainFctDef(const MainFctDefNode *node) {
18 // Ignore main function definitions if this is not the main source file
19
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 253 if (!sourceFile->isMainFile)
20 ✗ return nullptr;
21
22 // Do not generate main function if it is explicitly specified
23
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 253 if (cliOptions.noEntryFct)
24
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 1 return nullptr;
25
26 // Change scope to function scope
27 252 currentScope = node->bodyScope;
28
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 252 assert(currentScope != nullptr);
29
30 // Visit parameters
31 252 std::vector<std::pair<std::string, SymbolTableEntry *>> paramInfoList;
32 252 QualTypeList paramSymbolTypes;
33 252 std::vector<llvm::Type *> paramTypes;
34
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 252 if (node->takesArgs) {
35 4 const size_t numOfParams = node->paramLst->params.size();
36
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 4 paramInfoList.reserve(numOfParams);
37
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 4 paramSymbolTypes.reserve(numOfParams);
38
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 4 paramTypes.reserve(numOfParams);
39
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 12 for (DeclStmtNode *param : node->paramLst->params) {
40 // Get symbol table entry of param
41
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 8 SymbolTableEntry *paramSymbol = node->bodyScope->lookupStrict(param->varName);
42
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 8 assert(paramSymbol != nullptr);
43 // Retrieve type of param
44
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 8 auto paramType = any_cast<llvm::Type *>(visit(param->dataType));
45 // Add it to the lists
46
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 8 paramInfoList.emplace_back(param->varName, paramSymbol);
47
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 8 paramSymbolTypes.push_back(paramSymbol->getQualType());
48
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 8 paramTypes.push_back(paramType);
49 }
50 }
51
52 // Build the function
53
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 252 llvm::Type *returnType = builder.getInt32Ty();
54
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 252 llvm::FunctionType *fctType = llvm::FunctionType::get(returnType, paramTypes, false);
55
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 252 llvm::Function *fct = llvm::Function::Create(fctType, llvm::Function::ExternalLinkage, MAIN_FUNCTION_NAME, module);
56 252 fct->setDSOLocal(true);
57
58 // Add function attributes
59
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 252 fct->addFnAttr(llvm::Attribute::MustProgress);
60
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 252 fct->addFnAttr(llvm::Attribute::NoInline);
61
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 252 fct->addFnAttr(llvm::Attribute::NoRecurse);
62
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 252 fct->addFnAttr(llvm::Attribute::NoUnwind);
63
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 252 if (cliOptions.optLevel == OptLevel::O0)
64
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 252 fct->addFnAttr(llvm::Attribute::OptimizeNone);
65 ✗ else if (cliOptions.optLevel >= OptLevel::Os)
66 ✗ fct->addFnAttr(llvm::Attribute::OptimizeForSize);
67
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 252 fct->addFnAttr(llvm::Attribute::getWithUWTableKind(context, llvm::UWTableKind::Default));
68
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 252 enableFunctionInstrumentation(fct);
69
70 // Add return value attributes
71
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 252 fct->addRetAttr(llvm::Attribute::NoUndef);
72
73 // Add return value attributes
74
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 252 fct->addRetAttr(llvm::Attribute::NoUndef);
75
76 // Add debug info
77
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 252 if (cliOptions.instrumentation.generateDebugInfo) {
78 6 const auto nonConstNode = const_cast<MainFctDefNode *>(node);
79
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 6 const Function spiceFunc = FunctionManager::createMainFunction(node->entry, paramSymbolTypes, nonConstNode);
80
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 6 diGenerator.generateFunctionDebugInfo(fct, &spiceFunc);
81
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 6 diGenerator.setSourceLocation(node);
82 6 }
83
84 // Create entry block
85
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 252 llvm::BasicBlock *bEntry = createBlock();
86
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 252 switchToBlock(bEntry, fct);
87
88 // Reset alloca insert markers to this block
89 252 allocaInsertBlock = bEntry;
90 252 allocaInsertInst = nullptr;
91
92 // Allocate result variable
93
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 252 llvm::Value *resultAddress = insertAlloca(QualType(TY_INT), RETURN_VARIABLE_NAME);
94 // Update the symbol table entry
95
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 756 SymbolTableEntry *resultEntry = currentScope->lookupStrict(RETURN_VARIABLE_NAME);
96
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 252 assert(resultEntry != nullptr);
97
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 252 resultEntry->updateAddress(resultAddress);
98 // Generate debug info
99
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 504 diGenerator.generateLocalVarDebugInfo(RETURN_VARIABLE_NAME, resultAddress);
100 // Store the default result value
101
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 252 insertStore(builder.getInt32(0), resultAddress, QualType(TY_INT));
102
103 // Store function argument values
104
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 260 for (auto &arg : fct->args()) {
105 // Get information about the parameter
106 8 const size_t argNumber = arg.getArgNo();
107
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 8 auto [paramName, paramSymbol] = paramInfoList.at(argNumber);
108
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 8 assert(paramSymbol != nullptr);
109 // Allocate space for it
110
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 8 llvm::Value *paramAddress = insertAlloca(paramSymbol->getQualType(), paramName);
111 // Update the symbol table entry
112
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 8 paramSymbol->updateAddress(paramAddress);
113 // Store the value at the new address
114
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 8 insertStore(&arg, paramAddress);
115 // Generate debug info
116
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 8 diGenerator.generateLocalVarDebugInfo(paramName, paramAddress, argNumber + 1);
117 8 }
118
119 // Visit function body
120
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 252 visit(node->body);
121
122 // Create return statement if the block is not terminated yet
123
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 252 if (!blockAlreadyTerminated) {
124
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 249 llvm::Value *result = insertLoad(fct->getReturnType(), resultEntry->getAddress());
125
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 249 builder.CreateRet(result);
126 }
127
128 // Conclude debug info for function
129
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 252 diGenerator.concludeFunctionDebugInfo();
130
131 // Verify function
132
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 252 verifyFunction(fct, node->codeLoc);
133
134 // Change back to root scope
135 252 currentScope = rootScope;
136
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 252 assert(currentScope != nullptr);
137
138
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 252 return nullptr;
139 252 }
140
141 7651 std::any IRGenerator::visitFctDef(const FctDefNode *node) {
142 // Loop through manifestations
143 7651 manIdx = 0; // Reset the symbolTypeIndex
144
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 17131 for (Function *manifestation : node->manifestations) {
145
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 9480 assert(manifestation->entry != nullptr);
146
147 // Check if the manifestation is substantiated or not public and not used by anybody
148
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 9480 const bool isPublic = manifestation->entry->getQualType().isPublic();
149
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 9480 if (!manifestation->isFullySubstantiated() || (!isPublic && !manifestation->used)) {
150 2154 manIdx++; // Increment symbolTypeIndex
151 2154 continue;
152 }
153
154 // Change to struct scope
155
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 7326 if (manifestation->isMethod()) {
156 3337 const QualType &thisType = manifestation->thisType;
157
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 3337 const std::string scopeName = Struct::getScopeName(thisType.getSubType(), thisType.getTemplateTypes());
158
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 3337 currentScope = currentScope->getChildScope(scopeName);
159
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 3337 assert(currentScope != nullptr);
160 3337 }
161
162 // Change scope
163
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 7326 currentScope = currentScope->getChildScope(manifestation->getScopeName());
164
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 7326 assert(currentScope != nullptr);
165
166 // Get 'this' entry
167 7326 std::vector<std::pair<std::string, SymbolTableEntry *>> paramInfoList;
168 7326 std::vector<llvm::Type *> paramTypes;
169
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 7326 SymbolTableEntry *thisEntry = nullptr;
170
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 7326 if (manifestation->isMethod()) {
171
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 10011 thisEntry = currentScope->lookupStrict(THIS_VARIABLE_NAME);
172
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 3337 assert(thisEntry != nullptr);
173
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 3337 paramInfoList.emplace_back(THIS_VARIABLE_NAME, thisEntry);
174
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 3337 paramTypes.push_back(builder.getPtrTy());
175 }
176
177 // Visit parameters
178 7326 size_t argIdx = 0;
179
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 7326 if (node->hasParams) {
180 5790 const size_t numOfParams = manifestation->paramList.size();
181
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 5790 paramInfoList.reserve(numOfParams);
182
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 5790 paramTypes.reserve(numOfParams);
183
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 14534 for (; argIdx < numOfParams; argIdx++) {
184
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 8744 const DeclStmtNode *param = node->paramLst->params.at(argIdx);
185 // Get symbol table entry of param
186
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 8744 SymbolTableEntry *paramSymbol = currentScope->lookupStrict(param->varName);
187
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 8744 assert(paramSymbol != nullptr);
188
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 8744 const QualType paramSymbolType = manifestation->getParamTypes().at(argIdx);
189 // Pass the information if captures are taken for function/procedure types
190
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 8744 if (paramSymbolType.isOneOf({TY_FUNCTION, TY_PROCEDURE}) && paramSymbolType.hasLambdaCaptures())
191 ✗ paramSymbol->updateType(paramSymbol->getQualType().getWithLambdaCaptures(), true);
192 // Retrieve type of param
193
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 8744 llvm::Type *paramType = paramSymbolType.toLLVMType(sourceFile);
194 // Add it to the lists
195
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 8744 paramInfoList.emplace_back(param->varName, paramSymbol);
196
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 8744 paramTypes.push_back(paramType);
197 }
198 }
199
200 // Get return type
201
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 7326 llvm::Type *returnType = manifestation->returnType.toLLVMType(sourceFile);
202
203 // Get function linkage
204 7326 bool externalLinkage = isPublic;
205
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 8082 if (node->attrs && node->attrs->attrLst->hasAttr(ATTR_TEST))
206
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 36 externalLinkage |= node->attrs->attrLst->getAttrValueByName(ATTR_TEST)->boolValue;
207 7326 const llvm::GlobalValue::LinkageTypes linkage =
208
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 7326 externalLinkage ? llvm::Function::ExternalLinkage : llvm::Function::PrivateLinkage;
209
210 // Create function or implement declared function
211
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 7326 const std::string mangledName = manifestation->getMangledName();
212
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 7326 llvm::FunctionType *funcType = llvm::FunctionType::get(returnType, paramTypes, false);
213
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 7326 module->getOrInsertFunction(mangledName, funcType);
214
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 7326 llvm::Function *func = module->getFunction(mangledName);
215
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 7326 node->entry->updateAddress(func);
216 7326 manifestation->llvmFunction = func;
217
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 7326 assert(func->empty());
218
219 // Set attributes to function
220 7326 func->setDSOLocal(true);
221
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 7326 func->setLinkage(linkage);
222
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 7326 if (manifestation->entry->getQualType().isInline())
223
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 2485 func->addFnAttr(llvm::Attribute::AlwaysInline);
224
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 7326 enableFunctionInstrumentation(func);
225 // Set attributes to function parameters and return value
226
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 7326 setParamAttrs(func, paramInfoList);
227
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 7326 setFunctionReturnValAttrs(func, manifestation->returnType);
228
229 // Add debug info
230
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 7326 diGenerator.generateFunctionDebugInfo(func, manifestation);
231
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 7326 diGenerator.setSourceLocation(node);
232
233 // Create entry block
234
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 7326 llvm::BasicBlock *bEntry = createBlock();
235
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 7326 switchToBlock(bEntry, func);
236
237 // Reset alloca insert markers to this block
238 7326 allocaInsertBlock = bEntry;
239 7326 allocaInsertInst = nullptr;
240
241 // Declare result variable
242
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 7326 llvm::Value *resultAddr = insertAlloca(manifestation->returnType, RETURN_VARIABLE_NAME);
243
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 21978 SymbolTableEntry *resultEntry = currentScope->lookupStrict(RETURN_VARIABLE_NAME);
244
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 7326 assert(resultEntry != nullptr);
245
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 7326 resultEntry->updateAddress(resultAddr);
246 // Generate debug info
247
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 14652 diGenerator.generateLocalVarDebugInfo(RETURN_VARIABLE_NAME, resultAddr);
248
249 // Store function argument values
250
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 19407 for (auto &arg : func->args()) {
251 // Get information about the parameter
252 12081 const size_t argNumber = arg.getArgNo();
253
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 12081 auto [paramName, paramSymbol] = paramInfoList.at(argNumber);
254
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 12081 assert(paramSymbol != nullptr);
255 // Allocate space for it
256
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 12081 llvm::Value *paramAddress = insertAlloca(paramSymbol->getQualType(), paramName);
257 // Update the symbol table entry
258
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 12081 paramSymbol->updateAddress(paramAddress);
259 // Set source location
260
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 12081 diGenerator.setSourceLocation(paramSymbol->declNode);
261 // Store the value at the new address
262
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 12081 insertStore(&arg, paramAddress);
263 // Generate debug info to declare variable
264
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 12081 diGenerator.generateLocalVarDebugInfo(paramName, paramAddress, argNumber + 1);
265 12081 }
266
267 // Store the default values for optional function args
268
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 7326 if (node->paramLst) {
269
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 5790 const std::vector<DeclStmtNode *> params = node->paramLst->params;
270
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 6399 for (; argIdx < params.size(); argIdx++)
271
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 609 visit(params.at(argIdx));
272 5790 }
273
274 // Visit function body
275
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 7326 visit(node->body);
276
277 // Create return statement if the block is not terminated yet
278
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 7326 if (!blockAlreadyTerminated) {
279
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 332 llvm::Value *result = insertLoad(returnType, resultEntry->getAddress());
280
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 332 builder.CreateRet(result);
281 }
282
283 // Conclude debug info for function
284
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 7326 diGenerator.concludeFunctionDebugInfo();
285
286 // Verify function
287
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 7326 verifyFunction(func, node->codeLoc);
288
289 // Change to root scope
290 7326 currentScope = rootScope;
291
292 7326 manIdx++; // Increment symbolTypeIndex
293 7326 }
294 7651 manIdx = 0; // Reset the symbolTypeIndex
295
296 // Ensure that we are at the root scope again
297
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 7651 assert(currentScope == rootScope);
298
299
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 7651 return nullptr;
300 }
301
302 3929 std::any IRGenerator::visitProcDef(const ProcDefNode *node) {
303 // Loop through manifestations
304 3929 manIdx = 0; // Reset the symbolTypeIndex
305
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 9683 for (Function *manifestation : node->manifestations) {
306
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 5754 assert(manifestation->entry != nullptr);
307
308 // Check if the manifestation is substantiated or not public and not used by anybody
309
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 5754 const bool isPublic = manifestation->entry->getQualType().isPublic();
310
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 5754 if (!manifestation->isFullySubstantiated() || (!isPublic && !manifestation->used)) {
311 1986 manIdx++; // Increment symbolTypeIndex
312 1986 continue;
313 }
314
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 3768 assert(manifestation->alreadyTypeChecked);
315
316 // Change to struct scope
317
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 3768 if (manifestation->isMethod()) {
318 2748 const QualType &thisType = manifestation->thisType;
319
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 2748 const std::string scopeName = Struct::getScopeName(thisType.getSubType(), thisType.getTemplateTypes());
320
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 2748 currentScope = currentScope->getChildScope(scopeName);
321
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 2748 assert(currentScope != nullptr);
322 2748 }
323
324 // Change scope
325
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 3768 currentScope = currentScope->getChildScope(manifestation->getScopeName());
326
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 3768 assert(currentScope != nullptr);
327
328 // Get 'this' entry
329 3768 std::vector<std::pair<std::string, SymbolTableEntry *>> paramInfoList;
330
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 3768 std::vector<llvm::Type *> paramTypes;
331
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 3768 if (manifestation->isMethod()) {
332
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 8244 SymbolTableEntry *thisEntry = currentScope->lookupStrict(THIS_VARIABLE_NAME);
333
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 2748 assert(thisEntry != nullptr);
334
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 2748 paramInfoList.emplace_back(THIS_VARIABLE_NAME, thisEntry);
335
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 2748 paramTypes.push_back(builder.getPtrTy());
336 }
337
338 // Visit parameters
339 3768 size_t argIdx = 0;
340
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 3768 if (node->hasParams) {
341 2820 const size_t numOfParams = manifestation->paramList.size();
342
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 2820 paramInfoList.reserve(numOfParams);
343
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 2820 paramTypes.reserve(numOfParams);
344
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 7944 for (; argIdx < numOfParams; argIdx++) {
345
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 5124 const DeclStmtNode *param = node->paramLst->params.at(argIdx);
346 // Get symbol table entry of param
347
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 5124 SymbolTableEntry *paramSymbol = currentScope->lookupStrict(param->varName);
348
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 5124 assert(paramSymbol != nullptr);
349
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 5124 const QualType paramSymbolType = manifestation->getParamTypes().at(argIdx);
350 // Pass the information if captures are taken for function/procedure types
351
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 5124 if (paramSymbolType.isOneOf({TY_FUNCTION, TY_PROCEDURE}) && paramSymbolType.hasLambdaCaptures())
352
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 3 paramSymbol->updateType(paramSymbol->getQualType().getWithLambdaCaptures(), true);
353 // Retrieve type of param
354
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 5124 llvm::Type *paramType = paramSymbolType.toLLVMType(sourceFile);
355 // Add it to the lists
356
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 5124 paramInfoList.emplace_back(param->varName, paramSymbol);
357
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 5124 paramTypes.push_back(paramType);
358 }
359 }
360
361 // Get return type
362
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 3768 llvm::Type *returnType = builder.getVoidTy();
363
364 // Get procedure linkage
365
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 3768 const llvm::GlobalValue::LinkageTypes linkage = isPublic ? llvm::Function::ExternalLinkage : llvm::Function::PrivateLinkage;
366
367 // Create procedure or implement declared procedure
368
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 3768 const std::string mangledName = manifestation->getMangledName();
369
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 3768 llvm::FunctionType *procType = llvm::FunctionType::get(returnType, paramTypes, false);
370
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 3768 module->getOrInsertFunction(mangledName, procType);
371
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 3768 llvm::Function *proc = module->getFunction(mangledName);
372
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 3768 node->entry->updateAddress(proc);
373 3768 manifestation->llvmFunction = proc;
374
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 3768 assert(proc->empty());
375
376 // Set attributes to procedure
377 3768 proc->setDSOLocal(true);
378
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 3768 proc->setLinkage(linkage);
379
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 3768 if (manifestation->entry->getQualType().isInline())
380
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 306 proc->addFnAttr(llvm::Attribute::AlwaysInline);
381
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 3768 enableFunctionInstrumentation(proc);
382
383 // Set attributes to function parameters
384
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 3768 setParamAttrs(proc, paramInfoList);
385
386 // Add debug info
387
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 3768 diGenerator.generateFunctionDebugInfo(proc, manifestation);
388
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 3768 diGenerator.setSourceLocation(node);
389
390 // Create entry block
391
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 3768 llvm::BasicBlock *bEntry = createBlock();
392
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 3768 switchToBlock(bEntry, proc);
393
394 // Reset alloca insert markers to this block
395 3768 allocaInsertBlock = bEntry;
396 3768 allocaInsertInst = nullptr;
397
398 // Store procedure argument values
399
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 11640 for (auto &arg : proc->args()) {
400 // Get information about the parameter
401 7872 const size_t argNumber = arg.getArgNo();
402
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 7872 auto [paramName, paramSymbol] = paramInfoList.at(argNumber);
403
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 7872 assert(paramSymbol != nullptr);
404 // Allocate space for it
405
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 7872 llvm::Value *paramAddress = insertAlloca(paramSymbol->getQualType(), paramName);
406 // Update the symbol table entry
407
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 7872 paramSymbol->updateAddress(paramAddress);
408 // Set source location
409
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 7872 diGenerator.setSourceLocation(paramSymbol->declNode);
410 // Store the value at the new address
411
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 7872 insertStore(&arg, paramAddress);
412 // Generate debug info to declare variable
413
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 7872 diGenerator.generateLocalVarDebugInfo(paramName, paramAddress, argNumber + 1);
414 7872 }
415
416 // Store the default values for optional procedure args
417
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 3768 if (node->paramLst) {
418
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 2820 const std::vector<DeclStmtNode *> params = node->paramLst->params;
419
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 3014 for (; argIdx < params.size(); argIdx++)
420
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 194 visit(params.at(argIdx));
421 2820 }
422
423 // Generate special ctor preamble before generating the body to store VTable, default field values, etc. if required
424
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 3768 if (node->isCtor) {
425 1288 isInCtorBody = true;
426
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 1288 generateCtorBodyPreamble(currentScope);
427 }
428
429 // Visit procedure body
430
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 3768 visit(node->body);
431
432
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 3768 if (node->isCtor)
433 1288 isInCtorBody = false;
434
435 // Create return statement if the block is not terminated yet
436
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 3768 if (!blockAlreadyTerminated)
437
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 3667 builder.CreateRetVoid();
438
439 // Conclude debug info for procedure
440
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 3768 diGenerator.concludeFunctionDebugInfo();
441
442 // Verify procedure
443
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 3768 verifyFunction(proc, node->codeLoc);
444
445 // Change to root scope
446 3768 currentScope = rootScope;
447
448 3768 manIdx++; // Increment symbolTypeIndex
449 3768 }
450 3929 manIdx = 0; // Reset the symbolTypeIndex
451
452 // Ensure that we are at the root scope again
453
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 3929 assert(currentScope == rootScope);
454
455
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 3929 return nullptr;
456 }
457
458 11094 void IRGenerator::setParamAttrs(llvm::Function *function, const ParamInfoList &paramInfo) const {
459
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 11094 assert(function->arg_size() == paramInfo.size());
460
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 31047 for (size_t i = 0; i < paramInfo.size(); i++) {
461 19953 const QualType &paramType = paramInfo.at(i).second->getQualType();
462
463 // NoUndef attribute
464 19953 function->addParamAttr(i, llvm::Attribute::NoUndef);
465
466
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 19953 if (paramType.isPtr()) {
467 // NonNull attribute
468 6456 function->addParamAttr(i, llvm::Attribute::NonNull);
469 // Dereferenceable attribute
470
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 6456 llvm::Type *pointeeType = paramType.getContained().toLLVMType(sourceFile);
471
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 6456 assert(pointeeType != nullptr);
472
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 6456 function->addDereferenceableParamAttr(i, module->getDataLayout().getTypeStoreSize(pointeeType));
473 // Alignment attribute
474 6456 function->addParamAttr(i, llvm::Attribute::getWithAlignment(context, module->getDataLayout().getABITypeAlign(pointeeType)));
475 }
476
477 // ZExt or SExt attribute
478
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 19953 if (const llvm::Attribute::AttrKind extAttrKind = getExtAttrKindForType(paramType); extAttrKind != llvm::Attribute::None)
479 3839 function->addParamAttr(i, extAttrKind);
480 }
481 11094 }
482
483 7326 void IRGenerator::setFunctionReturnValAttrs(llvm::Function *function, const QualType &returnType) const {
484
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 7326 if (returnType.is(TY_DYN))
485 ✗ return;
486
487 // NoUndef attribute
488 7326 function->addRetAttr(llvm::Attribute::NoUndef);
489 // ZExt or SExt attribute
490
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 7326 if (const llvm::Attribute::AttrKind extAttrKind = getExtAttrKindForType(returnType); extAttrKind != llvm::Attribute::None)
491 3375 function->addRetAttr(extAttrKind);
492 }
493
494 68985 llvm::Attribute::AttrKind IRGenerator::getExtAttrKindForType(const QualType &type) const {
495
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 68985 if (type.is(TY_DYN))
496 ✗ return llvm::Attribute::None;
497
498 68985 const llvm::Type *llvmType = type.toLLVMType(sourceFile);
499
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 68985 const unsigned int maxExtWidth = cliOptions.targetTriple.isPPC() ? 64 : 32;
500
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 68985 if (llvmType->isIntegerTy() && llvmType->getIntegerBitWidth() < maxExtWidth)
501
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 15986 return type.isSigned() ? llvm::Attribute::SExt : llvm::Attribute::ZExt;
502 52999 return llvm::Attribute::None;
503 }
504
505 626 std::any IRGenerator::visitStructDef(const StructDefNode *node) {
506 // Get all substantiated structs which result from this struct def
507
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 626 std::vector<Struct *> manifestations = node->structManifestations;
508
509 // Sort the manifestations to prevent generating the struct types in the wrong order (in case of dependencies between structs)
510 908 const auto comp = [](const Struct *lhs, const Struct *rhs) { return lhs->manifestationIndex < rhs->manifestationIndex; };
511
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 626 std::ranges::sort(manifestations, comp);
512
513
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 1706 for (Struct *spiceStruct : manifestations) {
514 // Skip structs, that are not fully substantiated
515
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 1080 if (!spiceStruct->isFullySubstantiated())
516 305 continue;
517
518 // Do not generate this struct if it is private and used by nobody
519
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 776 if (!spiceStruct->used && !spiceStruct->entry->getQualType().isPublic())
520 1 continue;
521
522 // Change scope to struct scope, specific to substantiation
523 775 currentScope = spiceStruct->scope;
524
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 775 assert(currentScope);
525
526 // Set LLVM type to the struct entry
527 775 const SymbolTableEntry *structEntry = spiceStruct->entry;
528
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 775 assert(structEntry != nullptr);
529
530 // Generate VTable if required
531
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 775 if (node->emitVTable) {
532
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 211 generateVTable(spiceStruct);
533
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 422 deferredVTableInitializations.emplace_back([=, this]() { generateVTableInitializer(spiceStruct); }, false);
534 }
535
536 // Generate default ctor if required
537
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 775 const QualType &thisType = structEntry->getQualType();
538
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 2325 const Function *ctorFunc = FunctionManager::lookup(currentScope, CTOR_FUNCTION_NAME, thisType, {}, true);
539
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 775 if (ctorFunc != nullptr && ctorFunc->implicitDefault)
540
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 39 generateDefaultCtor(ctorFunc);
541
542 // Generate default copy ctor if required
543
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 2325 const ArgList args = {{thisType.toConstRef(node), false /* always non-temporary */}};
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 775 const Function *copyCtorFunc = FunctionManager::lookup(currentScope, CTOR_FUNCTION_NAME, thisType, args, true);
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 775 if (copyCtorFunc != nullptr && copyCtorFunc->implicitDefault)
546
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 97 generateDefaultCopyCtor(copyCtorFunc);
547
548 // Generate default dtor if required
549
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 2325 const Function *dtorFunc = FunctionManager::lookup(currentScope, DTOR_FUNCTION_NAME, thisType, {}, true);
550
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 775 if (dtorFunc != nullptr && dtorFunc->implicitDefault)
551
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 113 generateDefaultDtor(dtorFunc);
552
553 // Return to root scope
554 775 currentScope = rootScope;
555
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 775 assert(currentScope);
556 775 }
557
558
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 1252 return nullptr;
559 626 }
560
561 88 std::any IRGenerator::visitInterfaceDef(const InterfaceDefNode *node) {
562 // Get all substantiated structs which result from this struct def
563
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 88 std::vector<Interface *> manifestations = node->interfaceManifestations;
564
565 // Sort the manifestations to prevent generating the struct types in the wrong order (in case of dependencies between structs)
566 318 const auto comp = [](const Interface *lhs, const Interface *rhs) { return lhs->manifestationIndex < rhs->manifestationIndex; };
567
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 88 std::ranges::sort(manifestations, comp);
568
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 335 for (Interface *spiceInterface : manifestations) {
570 // Skip interfaces, that are not fully substantiated
571
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 247 if (!spiceInterface->isFullySubstantiated())
572 71 continue;
573
574 // Do not generate this interface if it is private and used by nobody
575
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 176 if (!spiceInterface->used && !spiceInterface->entry->getQualType().isPublic())
576 1 continue;
577
578 // Generate VTable information
579
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 175 generateVTable(spiceInterface);
580
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 350 deferredVTableInitializations.emplace_back([=, this]() { generateVTableInitializer(spiceInterface); }, false);
581 }
582
583
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 176 return nullptr;
584 88 }
585
586 64 std::any IRGenerator::visitEnumDef(const EnumDefNode *node) {
587
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 64 return nullptr; // Noop (enums are high-level semantic-only structures)
588 }
589
590 900 std::any IRGenerator::visitGenericTypeDef(const GenericTypeDefNode *node) {
591
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 900 return nullptr; // Noop (generic types are high-level semantic-only structures)
592 }
593
594 68 std::any IRGenerator::visitAliasDef(const AliasDefNode *node) {
595
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 68 return nullptr; // Noop (alias definitions are high-level semantic-only structures)
596 }
597
598 1167 std::any IRGenerator::visitGlobalVarDef(const GlobalVarDefNode *node) {
599 // Retrieve some information about the variable
600
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 1167 assert(node->entry != nullptr);
601 1167 const QualType &entryType = node->entry->getQualType();
602 1167 const bool isPublic = entryType.isPublic();
603 1167 const bool isConst = entryType.isConst();
604
605 // Get correct type and linkage type
606
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 1167 const auto varType = std::any_cast<llvm::Type *>(visit(node->dataType));
607
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 1167 const auto linkage = isPublic ? llvm::GlobalValue::ExternalLinkage : llvm::GlobalValue::PrivateLinkage;
608
609 // Create global var
610
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 1167 llvm::Value *varAddress = module->getOrInsertGlobal(node->varName, varType);
611
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 1167 llvm::GlobalVariable *var = module->getNamedGlobal(node->varName);
612 // Set some attributes, based on the given information
613 1167 var->setLinkage(linkage);
614 1167 var->setConstant(isConst);
615 1167 var->setDSOLocal(true);
616
617 // Set initializer
618
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 1167 if (node->hasValue) { // Set the constant value as variable initializer
619
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 1167 const auto constantValue = std::any_cast<llvm::Constant *>(visit(node->constant));
620 1167 var->setInitializer(constantValue);
621 ✗ } else if (cliOptions.buildMode != BuildMode::RELEASE) { // Set the default value as variable initializer
622 ✗ assert(cliOptions.buildMode == BuildMode::DEBUG || cliOptions.buildMode == BuildMode::TEST);
623 ✗ llvm::Constant *constantValue = getDefaultValueForSymbolType(node->entry->getQualType());
624 ✗ var->setInitializer(constantValue);
625 }
626
627 1167 node->entry->updateAddress(varAddress);
628
629 // Add debug info
630 1167 diGenerator.generateGlobalVarDebugInfo(var, node->entry);
631
632
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 1167 return nullptr;
633 }
634
635 996 std::any IRGenerator::visitExtDecl(const ExtDeclNode *node) {
636 // Get return type
637 996 const Function *spiceFunc = node->extFunction;
638
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 996 assert(spiceFunc != nullptr);
639
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 996 llvm::Type *returnType = builder.getVoidTy();
640
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 996 if (!spiceFunc->returnType.is(TY_DYN))
641
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 656 returnType = spiceFunc->returnType.toLLVMType(sourceFile);
642
643 // Get arg types
644 996 std::vector<llvm::Type *> argTypes;
645
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 996 argTypes.reserve(spiceFunc->paramList.size());
646
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 2951 for (const QualType &paramType : spiceFunc->getParamTypes())
647
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 2951 argTypes.push_back(paramType.toLLVMType(sourceFile));
648
649 // Declare function
650
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 996 const bool isVarArg = node->argTypeLst && node->argTypeLst->hasEllipsis;
651
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 996 llvm::FunctionType *functionType = llvm::FunctionType::get(returnType, argTypes, isVarArg);
652
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 996 const std::string mangledName = spiceFunc->getMangledName();
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 996 module->getOrInsertFunction(mangledName, functionType);
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 996 llvm::Function *fct = module->getFunction(mangledName);
655
656 // Add noundef attribute to all parameters
657
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 2951 for (size_t i = 0; i < argTypes.size(); i++)
658
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 1955 fct->addParamAttr(i, llvm::Attribute::NoUndef);
659
660 // If the function should be imported as dll, add the dll attribute
661
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 998 if (node->attrs && node->attrs->attrLst->hasAttr(ATTR_CORE_LINKER_DLL))
662 ✗ if (node->attrs->attrLst->getAttrValueByName(ATTR_CORE_LINKER_DLL)->boolValue)
663 ✗ fct->setDLLStorageClass(llvm::GlobalValue::DLLImportStorageClass);
664
665
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 1992 return nullptr;
666 996 }
667
668 } // namespace spice::compiler
669