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| 1 | // Copyright (c) 2021-2025 ChilliBits. All rights reserved. | ||
| 2 | |||
| 3 | #include "IRGenerator.h" | ||
| 4 | |||
| 5 | #include <llvm/IR/Module.h> | ||
| 6 | |||
| 7 | #include <SourceFile.h> | ||
| 8 | #include <ast/ASTNodes.h> | ||
| 9 | #include <ast/Attributes.h> | ||
| 10 | #include <driver/Driver.h> | ||
| 11 | #include <irgenerator/NameMangling.h> | ||
| 12 | #include <symboltablebuilder/SymbolTableBuilder.h> | ||
| 13 | |||
| 14 | namespace spice::compiler { | ||
| 15 | |||
| 16 | 221 | std::any IRGenerator::visitMainFctDef(const MainFctDefNode *node) { | |
| 17 | // Ignore main function definitions if this is not the main source file | ||
| 18 |
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221 | if (!sourceFile->isMainFile) |
| 19 | ✗ | return nullptr; | |
| 20 | |||
| 21 | // Do not generate main function if it is explicitly specified | ||
| 22 |
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221 | if (cliOptions.noEntryFct) |
| 23 |
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1 | return nullptr; |
| 24 | |||
| 25 | // Change scope to function scope | ||
| 26 | 220 | currentScope = node->bodyScope; | |
| 27 |
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220 | assert(currentScope != nullptr); |
| 28 | |||
| 29 | // Visit parameters | ||
| 30 | 220 | std::vector<std::pair<std::string, SymbolTableEntry *>> paramInfoList; | |
| 31 | 220 | QualTypeList paramSymbolTypes; | |
| 32 | 220 | std::vector<llvm::Type *> paramTypes; | |
| 33 |
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220 | if (node->takesArgs) { |
| 34 | 4 | const size_t numOfParams = node->paramLst->params.size(); | |
| 35 |
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4 | paramInfoList.reserve(numOfParams); |
| 36 |
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4 | paramSymbolTypes.reserve(numOfParams); |
| 37 |
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4 | paramTypes.reserve(numOfParams); |
| 38 |
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12 | for (DeclStmtNode *param : node->paramLst->params) { |
| 39 | // Get symbol table entry of param | ||
| 40 |
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8 | SymbolTableEntry *paramSymbol = node->bodyScope->lookupStrict(param->varName); |
| 41 |
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8 | assert(paramSymbol != nullptr); |
| 42 | // Retrieve type of param | ||
| 43 |
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8 | auto paramType = any_cast<llvm::Type *>(visit(param->dataType)); |
| 44 | // Add it to the lists | ||
| 45 |
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8 | paramInfoList.emplace_back(param->varName, paramSymbol); |
| 46 |
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8 | paramSymbolTypes.push_back(paramSymbol->getQualType()); |
| 47 |
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8 | paramTypes.push_back(paramType); |
| 48 | } | ||
| 49 | } | ||
| 50 | |||
| 51 | // Build the function | ||
| 52 |
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220 | llvm::Type *returnType = builder.getInt32Ty(); |
| 53 |
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220 | llvm::FunctionType *fctType = llvm::FunctionType::get(returnType, paramTypes, false); |
| 54 |
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220 | llvm::Function *fct = llvm::Function::Create(fctType, llvm::Function::ExternalLinkage, MAIN_FUNCTION_NAME, module); |
| 55 | 220 | fct->setDSOLocal(true); | |
| 56 | |||
| 57 | // Add function attributes | ||
| 58 |
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220 | fct->addFnAttr(llvm::Attribute::NoInline); |
| 59 |
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220 | fct->addFnAttr(llvm::Attribute::NoUnwind); |
| 60 |
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220 | if (cliOptions.optLevel == OptLevel::O0) |
| 61 |
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220 | fct->addFnAttr(llvm::Attribute::OptimizeNone); |
| 62 | ✗ | else if (cliOptions.optLevel >= OptLevel::Os) | |
| 63 | ✗ | fct->addFnAttr(llvm::Attribute::OptimizeForSize); | |
| 64 |
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220 | fct->addFnAttr(llvm::Attribute::getWithUWTableKind(context, llvm::UWTableKind::Default)); |
| 65 | |||
| 66 | // Add debug info | ||
| 67 |
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220 | if (cliOptions.generateDebugInfo) { |
| 68 | 2 | const auto nonConstNode = const_cast<MainFctDefNode *>(node); | |
| 69 |
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2 | const Function spiceFunc = FunctionManager::createMainFunction(node->entry, paramSymbolTypes, nonConstNode); |
| 70 |
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2 | diGenerator.generateFunctionDebugInfo(fct, &spiceFunc); |
| 71 |
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2 | diGenerator.setSourceLocation(node); |
| 72 | 2 | } | |
| 73 | |||
| 74 | // Create entry block | ||
| 75 |
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220 | llvm::BasicBlock *bEntry = createBlock(); |
| 76 |
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220 | switchToBlock(bEntry, fct); |
| 77 | |||
| 78 | // Reset alloca insert markers to this block | ||
| 79 | 220 | allocaInsertBlock = bEntry; | |
| 80 | 220 | allocaInsertInst = nullptr; | |
| 81 | |||
| 82 | // Allocate result variable | ||
| 83 |
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220 | llvm::Value *resultAddress = insertAlloca(returnType, RETURN_VARIABLE_NAME); |
| 84 | // Update the symbol table entry | ||
| 85 |
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660 | SymbolTableEntry *resultEntry = currentScope->lookupStrict(RETURN_VARIABLE_NAME); |
| 86 |
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220 | assert(resultEntry != nullptr); |
| 87 |
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220 | resultEntry->updateAddress(resultAddress); |
| 88 | // Generate debug info | ||
| 89 |
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440 | diGenerator.generateLocalVarDebugInfo(RETURN_VARIABLE_NAME, resultAddress); |
| 90 | // Store the default result value | ||
| 91 |
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220 | insertStore(builder.getInt32(0), resultAddress); |
| 92 | |||
| 93 | // Store function argument values | ||
| 94 |
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228 | for (auto &arg : fct->args()) { |
| 95 | // Get information about the parameter | ||
| 96 | 8 | const size_t argNumber = arg.getArgNo(); | |
| 97 |
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8 | auto [paramName, paramSymbol] = paramInfoList.at(argNumber); |
| 98 |
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8 | assert(paramSymbol != nullptr); |
| 99 | // Allocate space for it | ||
| 100 |
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8 | llvm::Type *paramType = fctType->getParamType(argNumber); |
| 101 |
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8 | llvm::Value *paramAddress = insertAlloca(paramType, paramName); |
| 102 | // Update the symbol table entry | ||
| 103 |
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8 | paramSymbol->updateAddress(paramAddress); |
| 104 | // Store the value at the new address | ||
| 105 |
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8 | insertStore(&arg, paramAddress); |
| 106 | // Generate debug info | ||
| 107 |
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8 | diGenerator.generateLocalVarDebugInfo(paramName, paramAddress, argNumber + 1); |
| 108 | 8 | } | |
| 109 | |||
| 110 | // Visit function body | ||
| 111 |
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220 | visit(node->body); |
| 112 | |||
| 113 | // Create return statement if the block is not terminated yet | ||
| 114 |
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220 | if (!blockAlreadyTerminated) { |
| 115 |
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217 | llvm::Value *result = insertLoad(fct->getReturnType(), resultEntry->getAddress()); |
| 116 |
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217 | builder.CreateRet(result); |
| 117 | } | ||
| 118 | |||
| 119 | // Conclude debug info for function | ||
| 120 |
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220 | diGenerator.concludeFunctionDebugInfo(); |
| 121 | |||
| 122 | // Verify function | ||
| 123 |
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220 | verifyFunction(fct, node->codeLoc); |
| 124 | |||
| 125 | // Change back to root scope | ||
| 126 | 220 | currentScope = rootScope; | |
| 127 |
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220 | assert(currentScope != nullptr); |
| 128 | |||
| 129 |
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220 | return nullptr; |
| 130 | 220 | } | |
| 131 | |||
| 132 | 5541 | std::any IRGenerator::visitFctDef(const FctDefNode *node) { | |
| 133 | // Loop through manifestations | ||
| 134 | 5541 | manIdx = 0; // Reset the symbolTypeIndex | |
| 135 |
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12491 | for (Function *manifestation : node->manifestations) { |
| 136 |
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6950 | assert(manifestation->entry != nullptr); |
| 137 | |||
| 138 | // Check if the manifestation is substantiated or not public and not used by anybody | ||
| 139 |
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6950 | const bool isPublic = manifestation->entry->getQualType().isPublic(); |
| 140 |
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6950 | if (!manifestation->isFullySubstantiated() || (!isPublic && !manifestation->used)) { |
| 141 | 1490 | manIdx++; // Increment symbolTypeIndex | |
| 142 | 1490 | continue; | |
| 143 | } | ||
| 144 | |||
| 145 | // Change to struct scope | ||
| 146 |
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5460 | if (manifestation->isMethod()) { |
| 147 | 2827 | const QualType &thisType = manifestation->thisType; | |
| 148 |
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2827 | const std::string signature = Struct::getSignature(thisType.getSubType(), thisType.getTemplateTypes()); |
| 149 |
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2827 | currentScope = currentScope->getChildScope(STRUCT_SCOPE_PREFIX + signature); |
| 150 |
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2827 | assert(currentScope != nullptr); |
| 151 | 2827 | } | |
| 152 | |||
| 153 | // Change scope | ||
| 154 |
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5460 | currentScope = currentScope->getChildScope(manifestation->getSignature(false)); |
| 155 |
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5460 | assert(currentScope != nullptr); |
| 156 | |||
| 157 | // Get 'this' entry | ||
| 158 | 5460 | std::vector<std::pair<std::string, SymbolTableEntry *>> paramInfoList; | |
| 159 | 5460 | std::vector<llvm::Type *> paramTypes; | |
| 160 |
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5460 | SymbolTableEntry *thisEntry = nullptr; |
| 161 |
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5460 | if (manifestation->isMethod()) { |
| 162 |
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8481 | thisEntry = currentScope->lookupStrict(THIS_VARIABLE_NAME); |
| 163 |
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2827 | assert(thisEntry != nullptr); |
| 164 |
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2827 | paramInfoList.emplace_back(THIS_VARIABLE_NAME, thisEntry); |
| 165 |
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2827 | paramTypes.push_back(builder.getPtrTy()); |
| 166 | } | ||
| 167 | |||
| 168 | // Visit parameters | ||
| 169 | 5460 | size_t argIdx = 0; | |
| 170 |
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5460 | if (node->hasParams) { |
| 171 | 4232 | const size_t numOfParams = manifestation->paramList.size(); | |
| 172 |
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4232 | paramInfoList.reserve(numOfParams); |
| 173 |
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4232 | paramTypes.reserve(numOfParams); |
| 174 |
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10994 | for (; argIdx < numOfParams; argIdx++) { |
| 175 |
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6762 | const DeclStmtNode *param = node->paramLst->params.at(argIdx); |
| 176 | // Get symbol table entry of param | ||
| 177 |
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6762 | SymbolTableEntry *paramSymbol = currentScope->lookupStrict(param->varName); |
| 178 |
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6762 | assert(paramSymbol != nullptr); |
| 179 |
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6762 | const QualType paramSymbolType = manifestation->getParamTypes().at(argIdx); |
| 180 | // Pass the information if captures are taken for function/procedure types | ||
| 181 |
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6762 | if (paramSymbolType.isOneOf({TY_FUNCTION, TY_PROCEDURE}) && paramSymbolType.hasLambdaCaptures()) |
| 182 | ✗ | paramSymbol->updateType(paramSymbol->getQualType().getWithLambdaCaptures(), true); | |
| 183 | // Retrieve type of param | ||
| 184 |
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6762 | llvm::Type *paramType = paramSymbolType.toLLVMType(sourceFile); |
| 185 | // Add it to the lists | ||
| 186 |
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6762 | paramInfoList.emplace_back(param->varName, paramSymbol); |
| 187 |
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6762 | paramTypes.push_back(paramType); |
| 188 | } | ||
| 189 | } | ||
| 190 | |||
| 191 | // Get return type | ||
| 192 |
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5460 | llvm::Type *returnType = manifestation->returnType.toLLVMType(sourceFile); |
| 193 | |||
| 194 | // Check if function is explicitly inlined | ||
| 195 |
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5460 | const bool explicitlyInlined = manifestation->entry->getQualType().isInline(); |
| 196 | // Get function linkage | ||
| 197 | 5460 | bool externalLinkage = isPublic; | |
| 198 |
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6180 | if (node->attrs && node->attrs->attrLst->hasAttr(ATTR_TEST)) |
| 199 |
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30 | externalLinkage |= node->attrs->attrLst->getAttrValueByName(ATTR_TEST)->boolValue; |
| 200 |
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5460 | const llvm::GlobalValue::LinkageTypes linkage = externalLinkage ? llvm::Function::ExternalLinkage : llvm::Function::PrivateLinkage; |
| 201 | |||
| 202 | // Create function or implement declared function | ||
| 203 |
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5460 | const std::string mangledName = manifestation->getMangledName(); |
| 204 |
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5460 | llvm::FunctionType *funcType = llvm::FunctionType::get(returnType, paramTypes, false); |
| 205 |
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5460 | module->getOrInsertFunction(mangledName, funcType); |
| 206 |
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5460 | llvm::Function *func = module->getFunction(mangledName); |
| 207 |
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5460 | node->entry->updateAddress(func); |
| 208 | 5460 | manifestation->llvmFunction = func; | |
| 209 |
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|
5460 | assert(func->empty()); |
| 210 | |||
| 211 | // Set attributes to function | ||
| 212 | 5460 | func->setDSOLocal(true); | |
| 213 |
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5460 | func->setLinkage(linkage); |
| 214 |
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5460 | if (explicitlyInlined) |
| 215 |
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|
2007 | func->addFnAttr(llvm::Attribute::AlwaysInline); |
| 216 | |||
| 217 | // Set attributes to 'this' param | ||
| 218 |
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|
5460 | if (manifestation->isMethod()) { |
| 219 |
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2827 | func->addParamAttr(0, llvm::Attribute::NoUndef); |
| 220 |
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2827 | func->addParamAttr(0, llvm::Attribute::NonNull); |
| 221 |
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2827 | assert(thisEntry != nullptr); |
| 222 |
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2827 | llvm::Type *structType = thisEntry->getQualType().getContained().toLLVMType(sourceFile); |
| 223 |
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2827 | assert(structType != nullptr); |
| 224 |
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2827 | func->addDereferenceableParamAttr(0, module->getDataLayout().getTypeStoreSize(structType)); |
| 225 |
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2827 | func->addParamAttr(0, llvm::Attribute::getWithAlignment(context, module->getDataLayout().getABITypeAlign(structType))); |
| 226 | } | ||
| 227 | |||
| 228 | // Add debug info | ||
| 229 |
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5460 | diGenerator.generateFunctionDebugInfo(func, manifestation); |
| 230 |
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5460 | diGenerator.setSourceLocation(node); |
| 231 | |||
| 232 | // Create entry block | ||
| 233 |
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5460 | llvm::BasicBlock *bEntry = createBlock(); |
| 234 |
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|
5460 | switchToBlock(bEntry, func); |
| 235 | |||
| 236 | // Reset alloca insert markers to this block | ||
| 237 | 5460 | allocaInsertBlock = bEntry; | |
| 238 | 5460 | allocaInsertInst = nullptr; | |
| 239 | |||
| 240 | // Declare result variable | ||
| 241 |
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5460 | llvm::Value *resultAddr = insertAlloca(returnType, RETURN_VARIABLE_NAME); |
| 242 |
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|
16380 | SymbolTableEntry *resultEntry = currentScope->lookupStrict(RETURN_VARIABLE_NAME); |
| 243 |
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5460 | assert(resultEntry != nullptr); |
| 244 |
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|
5460 | resultEntry->updateAddress(resultAddr); |
| 245 | // Generate debug info | ||
| 246 |
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|
10920 | diGenerator.generateLocalVarDebugInfo(RETURN_VARIABLE_NAME, resultAddr); |
| 247 | |||
| 248 | // Store function argument values | ||
| 249 |
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|
15049 | for (auto &arg : func->args()) { |
| 250 | // Get information about the parameter | ||
| 251 | 9589 | const size_t argNumber = arg.getArgNo(); | |
| 252 |
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9589 | auto [paramName, paramSymbol] = paramInfoList.at(argNumber); |
| 253 |
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|
9589 | assert(paramSymbol != nullptr); |
| 254 | // Allocate space for it | ||
| 255 |
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9589 | llvm::Type *paramType = funcType->getParamType(argNumber); |
| 256 |
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9589 | llvm::Value *paramAddress = insertAlloca(paramType, paramName); |
| 257 | // Update the symbol table entry | ||
| 258 |
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9589 | paramSymbol->updateAddress(paramAddress); |
| 259 | // Set source location | ||
| 260 |
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|
9589 | diGenerator.setSourceLocation(paramSymbol->declNode); |
| 261 | // Store the value at the new address | ||
| 262 |
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|
9589 | insertStore(&arg, paramAddress); |
| 263 | // Generate debug info to declare variable | ||
| 264 |
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|
9589 | diGenerator.generateLocalVarDebugInfo(paramName, paramAddress, argNumber + 1); |
| 265 | 9589 | } | |
| 266 | |||
| 267 | // Store the default values for optional function args | ||
| 268 |
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|
5460 | if (node->paramLst) { |
| 269 |
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|
4232 | const std::vector<DeclStmtNode *> params = node->paramLst->params; |
| 270 |
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|
4712 | for (; argIdx < params.size(); argIdx++) |
| 271 |
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|
480 | visit(params.at(argIdx)); |
| 272 | 4232 | } | |
| 273 | |||
| 274 | // Visit function body | ||
| 275 |
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|
5460 | visit(node->body); |
| 276 | |||
| 277 | // Create return statement if the block is not terminated yet | ||
| 278 |
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5460 | if (!blockAlreadyTerminated) { |
| 279 |
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|
191 | llvm::Value *result = insertLoad(returnType, resultEntry->getAddress()); |
| 280 |
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|
191 | builder.CreateRet(result); |
| 281 | } | ||
| 282 | |||
| 283 | // Conclude debug info for function | ||
| 284 |
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5460 | diGenerator.concludeFunctionDebugInfo(); |
| 285 | |||
| 286 | // Verify function | ||
| 287 |
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|
5460 | verifyFunction(func, node->codeLoc); |
| 288 | |||
| 289 | // Change to root scope | ||
| 290 | 5460 | currentScope = rootScope; | |
| 291 | |||
| 292 | 5460 | manIdx++; // Increment symbolTypeIndex | |
| 293 | 5460 | } | |
| 294 | 5541 | manIdx = 0; // Reset the symbolTypeIndex | |
| 295 | |||
| 296 | // Ensure that we are at the root scope again | ||
| 297 |
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5541 | assert(currentScope == rootScope); |
| 298 | |||
| 299 |
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|
5541 | return nullptr; |
| 300 | } | ||
| 301 | |||
| 302 | 2721 | std::any IRGenerator::visitProcDef(const ProcDefNode *node) { | |
| 303 | // Loop through manifestations | ||
| 304 | 2721 | manIdx = 0; // Reset the symbolTypeIndex | |
| 305 |
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6305 | for (Function *manifestation : node->manifestations) { |
| 306 |
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|
3584 | 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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3584 | const bool isPublic = manifestation->entry->getQualType().isPublic(); |
| 310 |
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|
3584 | if (!manifestation->isFullySubstantiated() || (!isPublic && !manifestation->used)) { |
| 311 | 1137 | manIdx++; // Increment symbolTypeIndex | |
| 312 | 1137 | continue; | |
| 313 | } | ||
| 314 |
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2447 | assert(manifestation->alreadyTypeChecked); |
| 315 | |||
| 316 | // Change to struct scope | ||
| 317 |
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2447 | if (manifestation->isMethod()) { |
| 318 | 2250 | const QualType &thisType = manifestation->thisType; | |
| 319 |
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2250 | const std::string signature = Struct::getSignature(thisType.getSubType(), thisType.getTemplateTypes()); |
| 320 |
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2250 | currentScope = currentScope->getChildScope(STRUCT_SCOPE_PREFIX + signature); |
| 321 |
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|
2250 | assert(currentScope != nullptr); |
| 322 | 2250 | } | |
| 323 | |||
| 324 | // Change scope | ||
| 325 |
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2447 | currentScope = currentScope->getChildScope(manifestation->getSignature(false)); |
| 326 |
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|
2447 | assert(currentScope != nullptr); |
| 327 | |||
| 328 | // Get 'this' entry | ||
| 329 | 2447 | std::vector<std::pair<std::string, SymbolTableEntry *>> paramInfoList; | |
| 330 | 2447 | std::vector<llvm::Type *> paramTypes; | |
| 331 |
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2447 | SymbolTableEntry *thisEntry = nullptr; |
| 332 |
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2447 | if (manifestation->isMethod()) { |
| 333 |
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|
6750 | thisEntry = currentScope->lookupStrict(THIS_VARIABLE_NAME); |
| 334 |
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2250 | assert(thisEntry != nullptr); |
| 335 |
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2250 | paramInfoList.emplace_back(THIS_VARIABLE_NAME, thisEntry); |
| 336 |
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|
2250 | paramTypes.push_back(builder.getPtrTy()); |
| 337 | } | ||
| 338 | |||
| 339 | // Visit parameters | ||
| 340 | 2447 | size_t argIdx = 0; | |
| 341 |
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2447 | if (node->hasParams) { |
| 342 | 1700 | const size_t numOfParams = manifestation->paramList.size(); | |
| 343 |
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1700 | paramInfoList.reserve(numOfParams); |
| 344 |
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1700 | paramTypes.reserve(numOfParams); |
| 345 |
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3635 | for (; argIdx < numOfParams; argIdx++) { |
| 346 |
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1935 | const DeclStmtNode *param = node->paramLst->params.at(argIdx); |
| 347 | // Get symbol table entry of param | ||
| 348 |
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1935 | SymbolTableEntry *paramSymbol = currentScope->lookupStrict(param->varName); |
| 349 |
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1935 | assert(paramSymbol != nullptr); |
| 350 |
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1935 | const QualType paramSymbolType = manifestation->getParamTypes().at(argIdx); |
| 351 | // Pass the information if captures are taken for function/procedure types | ||
| 352 |
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|
1935 | if (paramSymbolType.isOneOf({TY_FUNCTION, TY_PROCEDURE}) && paramSymbolType.hasLambdaCaptures()) |
| 353 |
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3 | paramSymbol->updateType(paramSymbol->getQualType().getWithLambdaCaptures(), true); |
| 354 | // Retrieve type of param | ||
| 355 |
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1935 | llvm::Type *paramType = paramSymbolType.toLLVMType(sourceFile); |
| 356 | // Add it to the lists | ||
| 357 |
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1935 | paramInfoList.emplace_back(param->varName, paramSymbol); |
| 358 |
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1935 | paramTypes.push_back(paramType); |
| 359 | } | ||
| 360 | } | ||
| 361 | |||
| 362 | // Get return type | ||
| 363 |
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2447 | llvm::Type *returnType = builder.getVoidTy(); |
| 364 | |||
| 365 | // Check if procedure is explicitly inlined | ||
| 366 |
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2447 | const bool explicitlyInlined = manifestation->entry->getQualType().isInline(); |
| 367 | // Get procedure linkage | ||
| 368 |
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2447 | const llvm::GlobalValue::LinkageTypes linkage = isPublic ? llvm::Function::ExternalLinkage : llvm::Function::PrivateLinkage; |
| 369 | |||
| 370 | // Create procedure or implement declared procedure | ||
| 371 |
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2447 | const std::string mangledName = manifestation->getMangledName(); |
| 372 |
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2447 | llvm::FunctionType *procType = llvm::FunctionType::get(returnType, paramTypes, false); |
| 373 |
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2447 | module->getOrInsertFunction(mangledName, procType); |
| 374 |
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2447 | llvm::Function *proc = module->getFunction(mangledName); |
| 375 |
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2447 | node->entry->updateAddress(proc); |
| 376 | 2447 | manifestation->llvmFunction = proc; | |
| 377 |
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|
2447 | assert(proc->empty()); |
| 378 | |||
| 379 | // Set attributes to procedure | ||
| 380 | 2447 | proc->setDSOLocal(true); | |
| 381 |
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2447 | proc->setLinkage(linkage); |
| 382 |
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2447 | if (explicitlyInlined) |
| 383 |
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213 | proc->addFnAttr(llvm::Attribute::AlwaysInline); |
| 384 | |||
| 385 | // Set attributes to 'this' param | ||
| 386 |
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2447 | if (manifestation->isMethod()) { |
| 387 |
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2250 | proc->addParamAttr(0, llvm::Attribute::NoUndef); |
| 388 |
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2250 | proc->addParamAttr(0, llvm::Attribute::NonNull); |
| 389 |
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2250 | assert(thisEntry != nullptr); |
| 390 |
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2250 | llvm::Type *structType = thisEntry->getQualType().getContained().toLLVMType(sourceFile); |
| 391 |
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2250 | assert(structType != nullptr); |
| 392 |
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2250 | proc->addDereferenceableParamAttr(0, module->getDataLayout().getTypeStoreSize(structType)); |
| 393 |
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2250 | proc->addParamAttr(0, llvm::Attribute::getWithAlignment(context, module->getDataLayout().getABITypeAlign(structType))); |
| 394 | } | ||
| 395 | |||
| 396 | // Add debug info | ||
| 397 |
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2447 | diGenerator.generateFunctionDebugInfo(proc, manifestation); |
| 398 |
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2447 | diGenerator.setSourceLocation(node); |
| 399 | |||
| 400 | // Create entry block | ||
| 401 |
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2447 | llvm::BasicBlock *bEntry = createBlock(); |
| 402 |
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2447 | switchToBlock(bEntry, proc); |
| 403 | |||
| 404 | // Reset alloca insert markers to this block | ||
| 405 | 2447 | allocaInsertBlock = bEntry; | |
| 406 | 2447 | allocaInsertInst = nullptr; | |
| 407 | |||
| 408 | // Store procedure argument values | ||
| 409 |
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6632 | for (auto &arg : proc->args()) { |
| 410 | // Get information about the parameter | ||
| 411 | 4185 | const size_t argNumber = arg.getArgNo(); | |
| 412 |
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4185 | auto [paramName, paramSymbol] = paramInfoList.at(argNumber); |
| 413 |
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4185 | assert(paramSymbol != nullptr); |
| 414 | // Allocate space for it | ||
| 415 |
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4185 | llvm::Type *paramType = procType->getParamType(argNumber); |
| 416 |
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4185 | llvm::Value *paramAddress = insertAlloca(paramType, paramName); |
| 417 | // Update the symbol table entry | ||
| 418 |
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4185 | paramSymbol->updateAddress(paramAddress); |
| 419 | // Set source location | ||
| 420 |
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4185 | diGenerator.setSourceLocation(paramSymbol->declNode); |
| 421 | // Store the value at the new address | ||
| 422 |
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4185 | insertStore(&arg, paramAddress); |
| 423 | // Generate debug info to declare variable | ||
| 424 |
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4185 | diGenerator.generateLocalVarDebugInfo(paramName, paramAddress, argNumber + 1); |
| 425 | 4185 | } | |
| 426 | |||
| 427 | // Store the default values for optional procedure args | ||
| 428 |
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2447 | if (node->paramLst) { |
| 429 |
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1700 | const std::vector<DeclStmtNode *> params = node->paramLst->params; |
| 430 |
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1841 | for (; argIdx < params.size(); argIdx++) |
| 431 |
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141 | visit(params.at(argIdx)); |
| 432 | 1700 | } | |
| 433 | |||
| 434 | // Generate special ctor preamble before generating the body to store VTable, default field values, etc. if required | ||
| 435 |
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2447 | if (node->isCtor) |
| 436 |
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1057 | generateCtorBodyPreamble(currentScope); |
| 437 | |||
| 438 | // Visit procedure body | ||
| 439 |
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2447 | visit(node->body); |
| 440 | |||
| 441 | // Create return statement if the block is not terminated yet | ||
| 442 |
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2447 | if (!blockAlreadyTerminated) |
| 443 |
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2363 | builder.CreateRetVoid(); |
| 444 | |||
| 445 | // Conclude debug info for procedure | ||
| 446 |
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2447 | diGenerator.concludeFunctionDebugInfo(); |
| 447 | |||
| 448 | // Verify procedure | ||
| 449 |
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2447 | verifyFunction(proc, node->codeLoc); |
| 450 | |||
| 451 | // Change to root scope | ||
| 452 | 2447 | currentScope = rootScope; | |
| 453 | |||
| 454 | 2447 | manIdx++; // Increment symbolTypeIndex | |
| 455 | 2447 | } | |
| 456 | 2721 | manIdx = 0; // Reset the symbolTypeIndex | |
| 457 | |||
| 458 | // Ensure that we are at the root scope again | ||
| 459 |
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2721 | assert(currentScope == rootScope); |
| 460 | |||
| 461 |
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2721 | return nullptr; |
| 462 | } | ||
| 463 | |||
| 464 | 498 | std::any IRGenerator::visitStructDef(const StructDefNode *node) { | |
| 465 | // Get all substantiated structs which result from this struct def | ||
| 466 |
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498 | std::vector<Struct *> manifestations = node->structManifestations; |
| 467 | |||
| 468 | // Sort the manifestations to prevent generating the struct types in the wrong order (in case of dependencies between structs) | ||
| 469 | 642 | const auto comp = [](const Struct *lhs, const Struct *rhs) { return lhs->manifestationIndex < rhs->manifestationIndex; }; | |
| 470 |
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498 | std::ranges::sort(manifestations, comp); |
| 471 | |||
| 472 |
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1317 | for (Struct *spiceStruct : manifestations) { |
| 473 | // Skip structs, that are not fully substantiated | ||
| 474 |
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819 | if (!spiceStruct->isFullySubstantiated()) |
| 475 | 200 | continue; | |
| 476 | |||
| 477 | // Do not generate this struct if it is private and used by nobody | ||
| 478 |
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621 | if (!spiceStruct->used && !spiceStruct->entry->getQualType().isPublic()) |
| 479 | 2 | continue; | |
| 480 | |||
| 481 | // Change scope to struct scope, specific to substantiation | ||
| 482 | 619 | currentScope = spiceStruct->scope; | |
| 483 |
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619 | assert(currentScope); |
| 484 | |||
| 485 | // Set LLVM type to the struct entry | ||
| 486 | 619 | const SymbolTableEntry *structEntry = spiceStruct->entry; | |
| 487 |
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619 | assert(structEntry != nullptr); |
| 488 | |||
| 489 | // Generate VTable if required | ||
| 490 |
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619 | if (node->emitVTable) { |
| 491 |
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155 | generateVTable(spiceStruct); |
| 492 |
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310 | deferredVTableInitializations.emplace_back([=, this]() { generateVTableInitializer(spiceStruct); }, false); |
| 493 | } | ||
| 494 | |||
| 495 | // Generate default ctor if required | ||
| 496 |
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619 | const QualType &thisType = structEntry->getQualType(); |
| 497 |
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1857 | const Function *ctorFunc = FunctionManager::lookup(currentScope, CTOR_FUNCTION_NAME, thisType, {}, true); |
| 498 |
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619 | if (ctorFunc != nullptr && ctorFunc->implicitDefault) |
| 499 |
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29 | generateDefaultCtor(ctorFunc); |
| 500 | |||
| 501 | // Generate default copy ctor if required | ||
| 502 |
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1857 | const ArgList args = {{thisType.toConstRef(node), false /* always non-temporary */}}; |
| 503 |
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619 | const Function *copyCtorFunc = FunctionManager::lookup(currentScope, CTOR_FUNCTION_NAME, thisType, args, true); |
| 504 |
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619 | if (copyCtorFunc != nullptr && copyCtorFunc->implicitDefault) |
| 505 |
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87 | generateDefaultCopyCtor(copyCtorFunc); |
| 506 | |||
| 507 | // Generate default dtor if required | ||
| 508 |
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1857 | const Function *dtorFunc = FunctionManager::lookup(currentScope, DTOR_FUNCTION_NAME, thisType, {}, true); |
| 509 |
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619 | if (dtorFunc != nullptr && dtorFunc->implicitDefault) |
| 510 |
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91 | generateDefaultDtor(dtorFunc); |
| 511 | |||
| 512 | // Return to root scope | ||
| 513 | 619 | currentScope = rootScope; | |
| 514 |
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619 | assert(currentScope); |
| 515 | 619 | } | |
| 516 | |||
| 517 |
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996 | return nullptr; |
| 518 | 498 | } | |
| 519 | |||
| 520 | 66 | std::any IRGenerator::visitInterfaceDef(const InterfaceDefNode *node) { | |
| 521 | // Get all substantiated structs which result from this struct def | ||
| 522 |
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66 | std::vector<Interface *> manifestations = node->interfaceManifestations; |
| 523 | |||
| 524 | // Sort the manifestations to prevent generating the struct types in the wrong order (in case of dependencies between structs) | ||
| 525 | 216 | const auto comp = [](const Interface *lhs, const Interface *rhs) { return lhs->manifestationIndex < rhs->manifestationIndex; }; | |
| 526 |
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66 | std::ranges::sort(manifestations, comp); |
| 527 | |||
| 528 |
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240 | for (Interface *spiceInterface : manifestations) { |
| 529 | // Skip interfaces, that are not fully substantiated | ||
| 530 |
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174 | if (!spiceInterface->isFullySubstantiated()) |
| 531 | 53 | continue; | |
| 532 | |||
| 533 | // Do not generate this interface if it is private and used by nobody | ||
| 534 |
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121 | if (!spiceInterface->used && !spiceInterface->entry->getQualType().isPublic()) |
| 535 | 1 | continue; | |
| 536 | |||
| 537 | // Generate VTable information | ||
| 538 |
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120 | generateVTable(spiceInterface); |
| 539 |
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240 | deferredVTableInitializations.emplace_back([=, this]() { generateVTableInitializer(spiceInterface); }, false); |
| 540 | } | ||
| 541 | |||
| 542 |
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132 | return nullptr; |
| 543 | 66 | } | |
| 544 | |||
| 545 | 62 | std::any IRGenerator::visitEnumDef(const EnumDefNode *node) { | |
| 546 |
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62 | return nullptr; // Noop (enums are high-level semantic-only structures) |
| 547 | } | ||
| 548 | |||
| 549 | 684 | std::any IRGenerator::visitGenericTypeDef(const GenericTypeDefNode *node) { | |
| 550 |
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684 | return nullptr; // Noop (generic types are high-level semantic-only structures) |
| 551 | } | ||
| 552 | |||
| 553 | 44 | std::any IRGenerator::visitAliasDef(const AliasDefNode *node) { | |
| 554 |
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44 | return nullptr; // Noop (alias definitions are high-level semantic-only structures) |
| 555 | } | ||
| 556 | |||
| 557 | 735 | std::any IRGenerator::visitGlobalVarDef(const GlobalVarDefNode *node) { | |
| 558 | // Retrieve some information about the variable | ||
| 559 |
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735 | assert(node->entry != nullptr); |
| 560 | 735 | const QualType &entryType = node->entry->getQualType(); | |
| 561 | 735 | const bool isPublic = entryType.isPublic(); | |
| 562 | 735 | const bool isConst = entryType.isConst(); | |
| 563 | |||
| 564 | // Get correct type and linkage type | ||
| 565 |
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735 | const auto varType = std::any_cast<llvm::Type *>(visit(node->dataType)); |
| 566 |
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735 | const auto linkage = isPublic ? llvm::GlobalValue::ExternalLinkage : llvm::GlobalValue::PrivateLinkage; |
| 567 | |||
| 568 | // Create global var | ||
| 569 |
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735 | llvm::Value *varAddress = module->getOrInsertGlobal(node->varName, varType); |
| 570 |
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735 | llvm::GlobalVariable *var = module->getNamedGlobal(node->varName); |
| 571 | // Set some attributes, based on the given information | ||
| 572 | 735 | var->setLinkage(linkage); | |
| 573 | 735 | var->setConstant(isConst); | |
| 574 | |||
| 575 | // Set initializer | ||
| 576 |
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735 | if (node->hasValue) { // Set the constant value as variable initializer |
| 577 |
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735 | const auto constantValue = std::any_cast<llvm::Constant *>(visit(node->constant)); |
| 578 | 735 | var->setInitializer(constantValue); | |
| 579 | ✗ | } else if (cliOptions.buildMode == DEBUG) { // Set the default value as variable initializer | |
| 580 | ✗ | llvm::Constant *constantValue = getDefaultValueForSymbolType(node->entry->getQualType()); | |
| 581 | ✗ | var->setInitializer(constantValue); | |
| 582 | } | ||
| 583 | |||
| 584 | 735 | node->entry->updateAddress(varAddress); | |
| 585 | |||
| 586 | // Add debug info | ||
| 587 | 735 | diGenerator.generateGlobalVarDebugInfo(var, node->entry); | |
| 588 | |||
| 589 |
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735 | return nullptr; |
| 590 | } | ||
| 591 | |||
| 592 | 817 | std::any IRGenerator::visitExtDecl(const ExtDeclNode *node) { | |
| 593 | // Get return type | ||
| 594 | 817 | const Function *spiceFunc = node->extFunction; | |
| 595 |
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817 | assert(spiceFunc != nullptr); |
| 596 |
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817 | llvm::Type *returnType = builder.getVoidTy(); |
| 597 |
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817 | if (!spiceFunc->returnType.is(TY_DYN)) |
| 598 |
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535 | returnType = spiceFunc->returnType.toLLVMType(sourceFile); |
| 599 | |||
| 600 | // Get arg types | ||
| 601 | 817 | std::vector<llvm::Type *> argTypes; | |
| 602 |
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817 | argTypes.reserve(spiceFunc->paramList.size()); |
| 603 |
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2425 | for (const QualType ¶mType : spiceFunc->getParamTypes()) |
| 604 |
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2425 | argTypes.push_back(paramType.toLLVMType(sourceFile)); |
| 605 | |||
| 606 | // Declare function | ||
| 607 |
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817 | llvm::FunctionType *functionType = llvm::FunctionType::get(returnType, argTypes, node->isVarArg); |
| 608 |
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817 | const std::string mangledName = spiceFunc->getMangledName(); |
| 609 |
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817 | module->getOrInsertFunction(mangledName, functionType); |
| 610 |
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817 | llvm::Function *fct = module->getFunction(mangledName); |
| 611 | |||
| 612 | // Add noundef attribute to all parameters | ||
| 613 |
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2425 | for (size_t i = 0; i < argTypes.size(); i++) |
| 614 |
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1608 | fct->addParamAttr(i, llvm::Attribute::NoUndef); |
| 615 | |||
| 616 | // If the function should be imported as dll, add the dll attribute | ||
| 617 |
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819 | if (node->attrs && node->attrs->attrLst->hasAttr(ATTR_CORE_LINKER_DLL)) |
| 618 | ✗ | if (node->attrs->attrLst->getAttrValueByName(ATTR_CORE_LINKER_DLL)->boolValue) | |
| 619 | ✗ | fct->setDLLStorageClass(llvm::GlobalValue::DLLImportStorageClass); | |
| 620 | |||
| 621 |
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1634 | return nullptr; |
| 622 | 817 | } | |
| 623 | |||
| 624 | } // namespace spice::compiler | ||
| 625 |