GCC Code Coverage Report

Directory: ../
File: src/irgenerator/GenStatements.cpp
Date: 2025-03-05 01:50:32
Exec Total Coverage
Lines: 102 110 92.7%
Functions: 9 12 75.0%
Branches: 103 190 54.2%
Line Branch Exec Source
1 // Copyright (c) 2021-2025 ChilliBits. All rights reserved.
2
3 #include "IRGenerator.h"
4
5 #include <ast/ASTNodes.h>
6 #include <driver/Driver.h>
7 #include <irgenerator/NameMangling.h>
8 #include <symboltablebuilder/SymbolTableBuilder.h>
9
10 namespace spice::compiler {
11
12 16048 std::any IRGenerator::visitStmtLst(const StmtLstNode *node) {
13 // Generate instructions in the scope
14
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 46997 for (const StmtNode *stmt : node->statements) {
15
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 30955 if (!stmt)
16 ✗ continue;
17 // Check if we can cancel generating instructions for this code branch
18
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 30955 if (blockAlreadyTerminated || stmt->unreachable)
19 break;
20 // Visit child
21
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 30949 visit(stmt);
22 }
23
24 // Generate cleanup code of this scope, e.g. dtor calls for struct instances
25 16048 diGenerator.setSourceLocation(node->getNextOuterStmtLst()->closingBraceCodeLoc);
26 16048 generateScopeCleanup(node);
27
28
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 16048 return nullptr;
29 }
30
31 ✗ std::any IRGenerator::visitTypeAltsLst(const TypeAltsLstNode *node) {
32 ✗ return nullptr; // Noop
33 }
34
35 6883 std::any IRGenerator::visitDeclStmt(const DeclStmtNode *node) {
36
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 6883 diGenerator.setSourceLocation(node);
37
38 // Get variable entry
39
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 6883 SymbolTableEntry *varEntry = node->entries.at(manIdx);
40
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 6883 assert(varEntry != nullptr);
41
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 6883 const QualType varSymbolType = varEntry->getQualType();
42
43 // Get LLVM type of variable
44
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 6883 llvm::Type *varTy = varSymbolType.toLLVMType(sourceFile);
45
46 // Check if the declaration is with an assignment or the default value
47 6883 llvm::Value *varAddress = nullptr;
48
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 6883 if (node->hasAssignment) { // Assignment
49
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 6570 if (node->calledCopyCtor) {
50 // Allocate memory
51
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 8 varAddress = insertAlloca(varTy);
52
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 8 varEntry->updateAddress(varAddress);
53 // Call copy ctor
54
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 8 llvm::Value *rhsAddress = resolveAddress(node->assignExpr);
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 8 assert(rhsAddress != nullptr);
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 24 generateCtorOrDtorCall(varEntry, node->calledCopyCtor, {rhsAddress});
57 } else {
58 // Assign rhs to lhs
59
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 6562 [[maybe_unused]] const LLVMExprResult assignResult = doAssignment(varAddress, varEntry, node->assignExpr, node, true);
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 6562 assert(assignResult.entry == varEntry);
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 6562 varAddress = varEntry->getAddress();
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 6562 varEntry->updateAddress(varAddress);
63 }
64 } else { // Default value
65 // Allocate memory
66
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 313 varAddress = insertAlloca(varTy);
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 313 varEntry->updateAddress(varAddress);
68
69
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 313 if (node->calledInitCtor) {
70 // Call no-args constructor
71
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 135 generateCtorOrDtorCall(varEntry, node->calledInitCtor, {});
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 178 } else if (!node->isForEachItem && cliOptions.buildMode != RELEASE) {
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 78 assert(!node->isCtorCallRequired);
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 78 assert(cliOptions.buildMode == DEBUG || cliOptions.buildMode == TEST);
75 // Retrieve default value for lhs symbol type and store it
76
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 78 llvm::Constant *defaultValue = getDefaultValueForSymbolType(varSymbolType);
77
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 78 insertStore(defaultValue, varAddress);
78 }
79 }
80
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 6883 assert(varAddress != nullptr);
81
82 // Attach the variable name to the LLVM value.
83
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 6883 varAddress->setName(varEntry->name);
84
85 // Generate debug info for variable declaration
86
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 6883 diGenerator.setSourceLocation(node);
87
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 6883 diGenerator.generateLocalVarDebugInfo(node->varName, varAddress);
88
89
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 6883 return nullptr;
90 }
91
92 ✗ std::any IRGenerator::visitQualifierLst(const QualifierLstNode *node) {
93 ✗ return nullptr; // Noop
94 }
95
96 270 std::any IRGenerator::visitModAttr(const ModAttrNode *node) {
97
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 270 return nullptr; // Noop
98 }
99
100 ✗ std::any IRGenerator::visitTopLevelDefinitionAttr(const TopLevelDefinitionAttrNode *node) {
101 ✗ return nullptr; // Noop
102 }
103
104 66 std::any IRGenerator::visitCaseConstant(const CaseConstantNode *node) {
105
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 66 if (node->constant)
106 15 return visit(node->constant);
107
108 51 const SymbolTableEntry *constantEntry = node->entry;
109
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 51 return getConst(constantEntry->declNode->getCompileTimeValue(), node->getEvaluatedSymbolType(manIdx), node);
110 }
111
112 7608 std::any IRGenerator::visitReturnStmt(const ReturnStmtNode *node) {
113 7608 diGenerator.setSourceLocation(node);
114
115 7608 llvm::Value *returnValue = nullptr;
116
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 7608 if (node->hasReturnValue) { // Return value is attached to the return statement
117 7555 const AssignExprNode* returnExpr = node->assignExpr;
118
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 7555 if (node->calledCopyCtor) {
119 // Perform a copy
120 3 llvm::Value* originalAddress = resolveAddress(returnExpr);
121 3 llvm::Type* returnTy = node->returnType.toLLVMType(sourceFile);
122
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 3 llvm::Value* newAddress = insertAlloca(returnTy);
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 9 generateCtorOrDtorCall(newAddress, node->calledCopyCtor, {originalAddress});
124
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 6 returnValue = insertLoad(returnTy, newAddress);
125 } else {
126
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 7552 returnValue = node->returnType.isRef() ? resolveAddress(returnExpr) : resolveValue(returnExpr);
127 }
128 } else { // Try to load result variable value
129
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 159 const SymbolTableEntry *resultEntry = currentScope->lookup(RETURN_VARIABLE_NAME);
130
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 53 if (resultEntry != nullptr) {
131 4 llvm::Type *resultSTy = resultEntry->getQualType().toLLVMType(sourceFile);
132 4 llvm::Value *returnValueAddr = resultEntry->getAddress();
133
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 8 returnValue = insertLoad(resultSTy, returnValueAddr);
134 }
135 }
136
137 // Terminate the block (with scope cleanup)
138 7608 terminateBlock(node->getParentScopeNode());
139
140 // Create return instruction
141
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 7608 if (returnValue != nullptr) {
142 // Return with value
143 7559 builder.CreateRet(returnValue);
144 } else {
145 // Return without value
146 49 builder.CreateRetVoid();
147 }
148
149
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 7608 return nullptr;
150 }
151
152 97 std::any IRGenerator::visitBreakStmt(const BreakStmtNode *node) {
153 97 diGenerator.setSourceLocation(node);
154
155 // Jump to destination block
156 97 const size_t blockIdx = breakBlocks.size() - node->breakTimes;
157 97 insertJump(breakBlocks.at(blockIdx));
158
159
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 97 return nullptr;
160 }
161
162 325 std::any IRGenerator::visitContinueStmt(const ContinueStmtNode *node) {
163 325 diGenerator.setSourceLocation(node);
164
165 // Jump to destination block
166 325 const size_t blockIdx = continueBlocks.size() - node->continueTimes;
167 325 insertJump(continueBlocks.at(blockIdx));
168
169
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 325 return nullptr;
170 }
171
172 4 std::any IRGenerator::visitFallthroughStmt(const FallthroughStmtNode *node) {
173 4 diGenerator.setSourceLocation(node);
174
175 // Jump to destination block
176 4 insertJump(fallthroughBlocks.top());
177
178
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 4 return nullptr;
179 }
180
181 705 std::any IRGenerator::visitAssertStmt(const AssertStmtNode *node) {
182 // Do not generate assertions in release mode
183
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 705 if (cliOptions.buildMode == RELEASE)
184 ✗ return nullptr;
185
186
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 705 diGenerator.setSourceLocation(node);
187
188 // Create blocks
189
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 705 const std::string &codeLine = node->codeLoc.toPrettyLine();
190
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 705 llvm::BasicBlock *bThen = createBlock("assert.then." + codeLine);
191
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 705 llvm::BasicBlock *bExit = createBlock("assert.exit." + codeLine);
192
193 // Visit the assignExpr
194
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 705 llvm::Value *condValue = resolveValue(node->assignExpr);
195
196 // Create condition check
197
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 705 insertCondJump(condValue, bExit, bThen, LIKELY);
198
199 // Switch to then block
200
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 705 switchToBlock(bThen);
201 // Create constant for error message
202
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 705 const std::string errorMsg = "Assertion failed: Condition '" + node->expressionString + "' evaluated to false.\n";
203
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 1410 llvm::Constant *globalString = builder.CreateGlobalString(errorMsg, getUnusedGlobalName(ANON_GLOBAL_STRING_NAME));
204 // Print the error message
205
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 705 llvm::Function *printfFct = stdFunctionManager.getPrintfFct();
206
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 705 builder.CreateCall(printfFct, globalString);
207 // Generate call to exit()
208
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 705 llvm::Function *exitFct = stdFunctionManager.getExitFct();
209
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 705 builder.CreateCall(exitFct, builder.getInt32(EXIT_FAILURE));
210 // Create unreachable instruction
211
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 705 builder.CreateUnreachable();
212
213 // Switch to exit block
214
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 705 switchToBlock(bExit);
215
216
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 705 return nullptr;
217 705 }
218
219 } // namespace spice::compiler
220