GCC Code Coverage Report

Directory: ../
File: src/irgenerator/GenStatements.cpp
Date: 2025-08-26 18:26:32
Exec Total Coverage
Lines: 104 112 92.9%
Functions: 9 12 75.0%
Branches: 106 196 54.1%
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
7 #include <ast/ASTNodes.h>
8 #include <driver/Driver.h>
9 #include <symboltablebuilder/SymbolTableBuilder.h>
10
11 namespace spice::compiler {
12
13 16897 std::any IRGenerator::visitStmtLst(const StmtLstNode *node) {
14 // Generate instructions in the scope
15
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 49097 for (const StmtNode *stmt : node->statements) {
16
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 32206 if (!stmt)
17 ✗ continue;
18 // Check if we can cancel generating instructions for this code branch
19
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 32206 if (blockAlreadyTerminated || stmt->unreachable)
20 break;
21 // Visit child
22
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 32200 visit(stmt);
23 }
24
25 // Generate cleanup code of this scope, e.g. dtor calls for struct instances
26 16897 diGenerator.setSourceLocation(node->getNextOuterStmtLst()->closingBraceCodeLoc);
27 16897 generateScopeCleanup(node);
28
29
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 16897 return nullptr;
30 }
31
32 ✗ std::any IRGenerator::visitTypeAltsLst(const TypeAltsLstNode *node) {
33 ✗ return nullptr; // Noop
34 }
35
36 7035 std::any IRGenerator::visitDeclStmt(const DeclStmtNode *node) {
37
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 7035 diGenerator.setSourceLocation(node);
38
39 // Get variable entry
40
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 7035 SymbolTableEntry *varEntry = node->entries.at(manIdx);
41
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 7035 assert(varEntry != nullptr);
42
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 7035 const QualType varSymbolType = varEntry->getQualType();
43
44 // Get LLVM type of variable
45
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 7035 llvm::Type *varTy = varSymbolType.toLLVMType(sourceFile);
46
47 // Check if the declaration is with an assignment or the default value
48 7035 llvm::Value *varAddress = nullptr;
49
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 7035 if (node->hasAssignment) { // Assignment
50
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 6718 if (node->calledCopyCtor) {
51 // Allocate memory
52
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 9 varAddress = insertAlloca(varTy);
53
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 9 varEntry->updateAddress(varAddress);
54 // Call copy ctor
55
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 9 llvm::Value *rhsAddress = resolveAddress(node->assignExpr);
56
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 9 assert(rhsAddress != nullptr);
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 27 generateCtorOrDtorCall(varEntry, node->calledCopyCtor, {rhsAddress});
58 } else {
59 // Assign rhs to lhs
60
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 6709 [[maybe_unused]] const LLVMExprResult assignResult = doAssignment(varAddress, varEntry, node->assignExpr, node, true);
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 6709 assert(assignResult.entry == varEntry);
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 6709 varAddress = varEntry->getAddress();
63
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 6709 varEntry->updateAddress(varAddress);
64 }
65 } else { // Default value
66 // Allocate memory
67
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 317 varAddress = insertAlloca(varTy);
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 317 varEntry->updateAddress(varAddress);
69
70
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 317 if (node->calledInitCtor) {
71 // Call no-args constructor
72
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 137 generateCtorOrDtorCall(varEntry, node->calledInitCtor, {});
73
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 180 } else if (!node->isForEachItem && cliOptions.buildMode != RELEASE) {
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 80 assert(!node->isCtorCallRequired);
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 80 assert(cliOptions.buildMode == DEBUG || cliOptions.buildMode == TEST);
76 // Retrieve default value for lhs symbol type and store it
77
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 80 llvm::Constant *defaultValue = getDefaultValueForSymbolType(varSymbolType);
78
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 80 insertStore(defaultValue, varAddress);
79 }
80 }
81
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 7035 assert(varAddress != nullptr);
82
83 // Attach the variable name to the LLVM value.
84
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 7035 varAddress->setName(varEntry->name);
85
86 // Generate debug info for variable declaration
87
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 7035 diGenerator.setSourceLocation(node);
88
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 7035 diGenerator.generateLocalVarDebugInfo(node->varName, varAddress);
89
90
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 7035 return nullptr;
91 }
92
93 ✗ std::any IRGenerator::visitQualifierLst(const QualifierLstNode *node) {
94 ✗ return nullptr; // Noop
95 }
96
97 273 std::any IRGenerator::visitModAttr(const ModAttrNode *node) {
98
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 273 return nullptr; // Noop
99 }
100
101 ✗ std::any IRGenerator::visitTopLevelDefinitionAttr(const TopLevelDefinitionAttrNode *node) {
102 ✗ return nullptr; // Noop
103 }
104
105 66 std::any IRGenerator::visitCaseConstant(const CaseConstantNode *node) {
106
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 66 if (node->constant)
107 15 return visit(node->constant);
108
109 51 const SymbolTableEntry *constantEntry = node->entry;
110
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 51 return getConst(constantEntry->declNode->getCompileTimeValue(), node->getEvaluatedSymbolType(manIdx), node);
111 }
112
113 8341 std::any IRGenerator::visitReturnStmt(const ReturnStmtNode *node) {
114 8341 diGenerator.setSourceLocation(node);
115
116 8341 llvm::Value *returnValue = nullptr;
117
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 8341 if (node->hasReturnValue) { // Return value is attached to the return statement
118 8287 const AssignExprNode *returnExpr = node->assignExpr;
119
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 8287 if (node->calledCopyCtor) {
120 // Perform a copy
121 3 llvm::Value *originalAddress = resolveAddress(returnExpr);
122 3 llvm::Type *returnTy = node->returnType.toLLVMType(sourceFile);
123
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 3 llvm::Value *newAddress = insertAlloca(returnTy);
124
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 9 generateCtorOrDtorCall(newAddress, node->calledCopyCtor, {originalAddress});
125
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 6 returnValue = insertLoad(returnTy, newAddress);
126 } else {
127
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 8284 returnValue = node->returnType.isRef() ? resolveAddress(returnExpr) : resolveValue(returnExpr);
128 }
129 } else { // Try to load result variable value
130
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 162 const SymbolTableEntry *resultEntry = currentScope->lookup(RETURN_VARIABLE_NAME);
131
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 54 if (resultEntry != nullptr) {
132 4 llvm::Type *resultSTy = resultEntry->getQualType().toLLVMType(sourceFile);
133 4 llvm::Value *returnValueAddr = resultEntry->getAddress();
134
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 8 returnValue = insertLoad(resultSTy, returnValueAddr);
135 }
136 }
137
138 // Terminate the block (with scope cleanup)
139 8341 terminateBlock(node->getParentScopeNode());
140
141 // Create return instruction
142
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 8341 if (returnValue != nullptr) {
143 // Return with value
144 8291 builder.CreateRet(returnValue);
145 } else {
146 // Return without value
147 50 builder.CreateRetVoid();
148 }
149
150
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 8341 return nullptr;
151 }
152
153 98 std::any IRGenerator::visitBreakStmt(const BreakStmtNode *node) {
154 98 diGenerator.setSourceLocation(node);
155
156 // Jump to destination block
157 98 const size_t blockIdx = breakBlocks.size() - node->breakTimes;
158 98 insertJump(breakBlocks.at(blockIdx));
159
160
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 98 return nullptr;
161 }
162
163 325 std::any IRGenerator::visitContinueStmt(const ContinueStmtNode *node) {
164 325 diGenerator.setSourceLocation(node);
165
166 // Jump to destination block
167 325 const size_t blockIdx = continueBlocks.size() - node->continueTimes;
168 325 insertJump(continueBlocks.at(blockIdx));
169
170
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 325 return nullptr;
171 }
172
173 4 std::any IRGenerator::visitFallthroughStmt(const FallthroughStmtNode *node) {
174 4 diGenerator.setSourceLocation(node);
175
176 // Jump to destination block
177 4 insertJump(fallthroughBlocks.top());
178
179
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 4 return nullptr;
180 }
181
182 739 std::any IRGenerator::visitAssertStmt(const AssertStmtNode *node) {
183 // Do not generate assertions in release mode
184
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 739 if (cliOptions.buildMode == RELEASE)
185 ✗ return nullptr;
186
187
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 739 diGenerator.setSourceLocation(node);
188
189 // Create blocks
190
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 739 const std::string &codeLine = node->codeLoc.toPrettyLine();
191
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 739 llvm::BasicBlock *bThen = createBlock("assert.then." + codeLine);
192
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 739 llvm::BasicBlock *bExit = createBlock("assert.exit." + codeLine);
193
194 // Visit the assignExpr
195
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 739 llvm::Value *condValue = resolveValue(node->assignExpr);
196
197 // Create condition check
198
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 739 insertCondJump(condValue, bExit, bThen, LIKELY);
199
200 // Switch to then block
201
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 739 switchToBlock(bThen);
202 // Create constant for error message
203
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 739 const std::string errorMsg = "Assertion failed: Condition '" + node->expressionString + "' evaluated to false.\n";
204
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 1478 llvm::GlobalVariable *globalString = builder.CreateGlobalString(errorMsg, getUnusedGlobalName(ANON_GLOBAL_STRING_NAME));
205 // If the output should be comparable, fix alignment to 4 bytes
206
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 739 if (cliOptions.comparableOutput)
207
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 739 globalString->setAlignment(llvm::Align(4));
208 // Print the error message
209
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 739 llvm::Function *printfFct = stdFunctionManager.getPrintfFct();
210
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 739 builder.CreateCall(printfFct, globalString);
211 // Generate call to exit()
212
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 739 llvm::Function *exitFct = stdFunctionManager.getExitFct();
213
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 739 builder.CreateCall(exitFct, builder.getInt32(EXIT_FAILURE));
214 // Create unreachable instruction
215
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 739 builder.CreateUnreachable();
216
217 // Switch to exit block
218
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 739 switchToBlock(bExit);
219
220
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 739 return nullptr;
221 739 }
222
223 } // namespace spice::compiler
224