GCC Code Coverage Report

Directory: ../
File: src/irgenerator/GenExpressions.cpp
Date: 2025-03-05 01:50:32
Exec Total Coverage
Lines: 501 507 98.8%
Functions: 19 20 95.0%
Branches: 550 926 59.4%
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
7 #include <llvm/IR/Module.h>
8
9 namespace spice::compiler {
10
11 58611 std::any IRGenerator::visitAssignExpr(const AssignExprNode *node) {
12 58611 diGenerator.setSourceLocation(node);
13
14 // Visit ternary expression
15
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 58611 if (node->ternaryExpr)
16 53422 return visit(node->ternaryExpr);
17
18 // Assign or compound assign operation
19
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 5189 if (node->op != AssignExprNode::AssignOp::OP_NONE) {
20 5189 const PrefixUnaryExprNode *lhsNode = node->lhs;
21 5189 const AssignExprNode *rhsNode = node->rhs;
22
23 // Normal assignment
24
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 5189 if (node->op == AssignExprNode::AssignOp::OP_ASSIGN)
25
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 4632 return doAssignment(lhsNode, rhsNode, node);
26
27 // Compound assignment
28 // Get symbol types of left and right side
29
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 557 const QualType lhsSTy = lhsNode->getEvaluatedSymbolType(manIdx);
30
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 557 const QualType rhsSTy = rhsNode->getEvaluatedSymbolType(manIdx);
31
32 // Retrieve rhs
33
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 557 auto rhs = std::any_cast<LLVMExprResult>(visit(rhsNode));
34 // Retrieve lhs
35
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 557 auto lhs = std::any_cast<LLVMExprResult>(visit(lhsNode));
36
37 557 LLVMExprResult result;
38
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 557 switch (node->op) {
39 233 case AssignExprNode::AssignOp::OP_PLUS_EQUAL:
40
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 233 result = conversionManager.getPlusEqualInst(node, lhs, lhsSTy, rhs, rhsSTy, 0);
41 233 break;
42 32 case AssignExprNode::AssignOp::OP_MINUS_EQUAL:
43
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 32 result = conversionManager.getMinusEqualInst(node, lhs, lhsSTy, rhs, rhsSTy, 0);
44 32 break;
45 18 case AssignExprNode::AssignOp::OP_MUL_EQUAL:
46
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 18 result = conversionManager.getMulEqualInst(node, lhs, lhsSTy, rhs, rhsSTy, 0);
47 18 break;
48 39 case AssignExprNode::AssignOp::OP_DIV_EQUAL:
49
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 39 result = conversionManager.getDivEqualInst(node, lhs, lhsSTy, rhs, rhsSTy, 0);
50 39 break;
51 5 case AssignExprNode::AssignOp::OP_REM_EQUAL:
52
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 5 result = conversionManager.getRemEqualInst(node, lhs, lhsSTy, rhs, rhsSTy);
53 5 break;
54 1 case AssignExprNode::AssignOp::OP_SHL_EQUAL:
55
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 1 result = conversionManager.getSHLEqualInst(node, lhs, lhsSTy, rhs, rhsSTy);
56 1 break;
57 2 case AssignExprNode::AssignOp::OP_SHR_EQUAL:
58
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 2 result = conversionManager.getSHREqualInst(node, lhs, lhsSTy, rhs, rhsSTy);
59 2 break;
60 1 case AssignExprNode::AssignOp::OP_AND_EQUAL:
61
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 1 result = conversionManager.getAndEqualInst(node, lhs, lhsSTy, rhs, rhsSTy);
62 1 break;
63 1 case AssignExprNode::AssignOp::OP_OR_EQUAL:
64
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 1 result = conversionManager.getOrEqualInst(node, lhs, lhsSTy, rhs, rhsSTy);
65 1 break;
66 225 case AssignExprNode::AssignOp::OP_XOR_EQUAL:
67
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 225 result = conversionManager.getXorEqualInst(node, lhs, lhsSTy, rhs, rhsSTy);
68 225 break;
69 − default: // GCOV_EXCL_LINE
70 − throw CompilerError(UNHANDLED_BRANCH, "Assign op fall-through"); // GCOV_EXCL_LINE
71 }
72
73
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 557 if (result.ptr) { // The operation allocated more memory
74 ✗ if (lhs.entry)
75 ✗ lhs.entry->updateAddress(result.ptr);
76
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 557 } else if (result.value) { // The operation only updated the value
77 // Store the result
78 423 lhs.value = result.value;
79
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 423 insertStore(lhs.value, lhs.ptr, lhs.entry && lhs.entry->isVolatile);
80 }
81
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 557 return lhs;
82 }
83
84 // This is a fallthrough case -> throw an error
85 − throw CompilerError(UNHANDLED_BRANCH, "AssignStmt fall-through"); // GCOV_EXCL_LINE
86 }
87
88 53673 std::any IRGenerator::visitTernaryExpr(const TernaryExprNode *node) {
89 53673 diGenerator.setSourceLocation(node);
90
91 // Check if only one operand is present -> loop through
92
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 53673 if (!node->falseExpr)
93 53327 return visit(node->condition);
94
95 // It is a ternary
96 // Retrieve the condition value
97 346 llvm::Value *condValue = resolveValue(node->condition);
98
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 346 const LogicalOrExprNode *trueNode = node->isShortened ? node->condition : node->trueExpr;
99 346 const LogicalOrExprNode *falseNode = node->falseExpr;
100
101 346 llvm::Value *resultValue = nullptr;
102 346 llvm::Value *resultPtr = nullptr;
103 346 SymbolTableEntry *anonymousSymbol = nullptr;
104
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 346 if (trueNode->hasCompileTimeValue() && falseNode->hasCompileTimeValue()) {
105 // If both are constants, we can simply emit a selection instruction
106 40 llvm::Value *trueValue = resolveValue(trueNode);
107 40 llvm::Value *falseValue = resolveValue(falseNode);
108
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 40 resultValue = builder.CreateSelect(condValue, trueValue, falseValue);
109 } else {
110 // We have at least one non-constant value, use branching to not perform both sides
111
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 306 const std::string codeLoc = node->codeLoc.toPrettyLineAndColumn();
112
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 306 llvm::BasicBlock *condTrue = createBlock("cond.true." + codeLoc);
113
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 306 llvm::BasicBlock *condFalse = createBlock("cond.false." + codeLoc);
114
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 306 llvm::BasicBlock *condExit = createBlock("cond.exit." + codeLoc);
115
116 // Jump from original block to true or false block, depending on condition
117
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 306 insertCondJump(condValue, condTrue, condFalse);
118
119 // Fill true block
120
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 306 switchToBlock(condTrue);
121
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 306 const QualType &resultType = node->getEvaluatedSymbolType(manIdx);
122 306 llvm::Value *trueValue = nullptr;
123 306 llvm::Value *truePtr = nullptr;
124
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 306 if (node->falseSideCallsCopyCtor || resultType.isRef()) { // both sides or only the false side needs copy ctor call
125
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 16 truePtr = resolveAddress(trueNode);
126
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 290 } else if (node->trueSideCallsCopyCtor) { // only true side needs copy ctor call
127
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 2 llvm::Value *originalPtr = resolveAddress(trueNode);
128
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 2 truePtr = insertAlloca(trueNode->getEvaluatedSymbolType(manIdx).toLLVMType(sourceFile));
129
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 6 generateCtorOrDtorCall(truePtr, node->calledCopyCtor, {originalPtr});
130 } else { // neither true nor false side need copy ctor call
131
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 288 trueValue = resolveValue(trueNode);
132 }
133 // Set the true block to the current insert point, since it could have changed in the meantime
134 306 condTrue = builder.GetInsertBlock();
135
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 306 insertJump(condExit);
136
137 // Fill false block
138
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 306 switchToBlock(condFalse);
139 306 llvm::Value *falseValue = nullptr;
140 306 llvm::Value *falsePtr = nullptr;
141
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 306 if (node->trueSideCallsCopyCtor || resultType.isRef()) { // both sides or only the true side needs copy ctor call
142
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 16 falsePtr = resolveAddress(falseNode);
143
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 290 } else if (node->falseSideCallsCopyCtor) { // only false side needs copy ctor call
144
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 2 llvm::Value *originalPtr = resolveAddress(falseNode);
145
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 2 falsePtr = insertAlloca(falseNode->getEvaluatedSymbolType(manIdx).toLLVMType(sourceFile));
146
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 6 generateCtorOrDtorCall(falsePtr, node->calledCopyCtor, {originalPtr});
147 } else { // neither true nor false side need copy ctor call
148
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 288 falseValue = resolveValue(falseNode);
149 }
150 // Set the true block to the current insert point, since it could have changed in the meantime
151 306 condFalse = builder.GetInsertBlock();
152
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 306 insertJump(condExit);
153
154 // Fill the exit block
155
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 306 switchToBlock(condExit);
156
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 306 if (node->trueSideCallsCopyCtor || node->falseSideCallsCopyCtor || resultType.isRef()) { // one side calls copy ctor
157
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 18 llvm::PHINode *phiInst = builder.CreatePHI(builder.getPtrTy(), 2, "cond.result");
158
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 18 phiInst->addIncoming(truePtr, condTrue);
159
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 18 phiInst->addIncoming(falsePtr, condFalse);
160
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 18 if (node->trueSideCallsCopyCtor && node->falseSideCallsCopyCtor) { // both sides need copy ctor call
161
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 6 resultPtr = insertAlloca(resultType.toLLVMType(sourceFile));
162
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 18 generateCtorOrDtorCall(resultPtr, node->calledCopyCtor, {phiInst});
163 } else {
164 12 resultPtr = phiInst;
165 }
166 } else { // neither true nor false side calls copy ctor
167
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 288 assert(trueValue != nullptr);
168
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 288 llvm::PHINode *phiInst = builder.CreatePHI(resultType.toLLVMType(sourceFile), 2, "cond.result");
169
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 288 phiInst->addIncoming(trueValue, condTrue);
170
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 288 phiInst->addIncoming(falseValue, condFalse);
171 288 resultValue = phiInst;
172 }
173
174 // If we have an anonymous symbol for this ternary expr, make sure that it has an address to reference.
175
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 306 anonymousSymbol = currentScope->symbolTable.lookupAnonymous(node->codeLoc);
176
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 306 if (anonymousSymbol != nullptr) {
177
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 6 if (!resultPtr) {
178 ✗ resultPtr = insertAlloca(anonymousSymbol->getQualType().toLLVMType(sourceFile));
179 ✗ insertStore(resultValue, resultPtr);
180 }
181
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 6 anonymousSymbol->updateAddress(resultPtr);
182 }
183 306 }
184
185
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 692 return LLVMExprResult{.value = resultValue, .ptr = resultPtr, .entry = anonymousSymbol};
186 }
187
188 54365 std::any IRGenerator::visitLogicalOrExpr(const LogicalOrExprNode *node) {
189
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 54365 diGenerator.setSourceLocation(node);
190
191 // Check if only one operand is present -> loop through
192
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 54365 if (node->operands.size() == 1)
193
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 53543 return visit(node->operands.front());
194
195 // It is a logical or expression
196 // Create exit block for short-circuiting
197
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 822 const std::string codeLoc = node->codeLoc.toPrettyLineAndColumn();
198
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 822 llvm::BasicBlock *bExit = createBlock("lor.exit." + codeLoc);
199
200 // Visit the first operand
201
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 822 llvm::Value *firstOperandValue = resolveValue(node->operands.front());
202
203 // Prepare an array for value-to-block-mapping
204 822 std::vector<std::pair<llvm::BasicBlock *, llvm::Value *>> shortCircuitBlocks;
205
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 822 shortCircuitBlocks.reserve(node->operands.size());
206 // The first element is the first operand value with the original block
207
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 822 shortCircuitBlocks.emplace_back(builder.GetInsertBlock(), firstOperandValue);
208 // Create a block for each additional operand and save it to the mapping
209
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 1881 for (size_t i = 1; i < node->operands.size(); i++)
210
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 1059 shortCircuitBlocks.emplace_back(createBlock("lor." + std::to_string(i) + "." + codeLoc), nullptr);
211 // Create conditional jump to the exit block if the first operand was true, otherwise to the next block
212
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 822 insertCondJump(firstOperandValue, bExit, shortCircuitBlocks.at(1).first);
213
214 // Create block for each operand
215
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 1881 for (size_t i = 1; i < node->operands.size(); i++) {
216 // Switch to the next block
217
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 1059 switchToBlock(shortCircuitBlocks.at(i).first);
218 // Evaluate operand and save the result in the mapping
219
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 1059 shortCircuitBlocks.at(i).second = resolveValue(node->operands[i]);
220 // Replace the array entry with the current insert block, since the insert block could have changed in the meantime
221
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 1059 shortCircuitBlocks.at(i).first = builder.GetInsertBlock();
222 // Check if there are more blocks to process
223
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 1059 if (i == node->operands.size() - 1) {
224 // Insert a simple jump to the exit block for the last block
225
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 822 insertJump(bExit);
226 } else {
227 // Create conditional jump to the exit block if the first operand was true, otherwise to the next block
228
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 237 insertCondJump(shortCircuitBlocks.at(i).second, bExit, shortCircuitBlocks.at(i + 1).first);
229 }
230 }
231
232 // Get the result with the phi node
233
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 822 switchToBlock(bExit);
234
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 822 llvm::PHINode *result = builder.CreatePHI(firstOperandValue->getType(), node->operands.size(), "lor_phi");
235
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 2703 for (const auto &[incomingBlock, value] : shortCircuitBlocks)
236
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 1881 result->addIncoming(value, incomingBlock);
237
238 // Return the result
239
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 822 return LLVMExprResult{.value = result};
240 822 }
241
242 55424 std::any IRGenerator::visitLogicalAndExpr(const LogicalAndExprNode *node) {
243
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 55424 diGenerator.setSourceLocation(node);
244
245 // Check if only one operand is present -> loop through
246
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 55424 if (node->operands.size() == 1)
247
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 55281 return visit(node->operands.front());
248
249 // It is a logical and expression
250 // Create exit block for short-circuiting
251
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 143 const std::string codeLoc = node->codeLoc.toPrettyLineAndColumn();
252
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 143 llvm::BasicBlock *bExit = createBlock("land.exit." + codeLoc);
253
254 // Visit the first operand
255
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 143 llvm::Value *firstOperandValue = resolveValue(node->operands.front());
256
257 // Prepare an array for value-to-block-mapping
258 143 std::vector<std::pair<llvm::BasicBlock *, llvm::Value *>> shortCircuitBlocks;
259
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 143 shortCircuitBlocks.reserve(node->operands.size());
260 // The first element is the first operand value with the original block
261
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 143 shortCircuitBlocks.emplace_back(builder.GetInsertBlock(), firstOperandValue);
262 // Create a block for each additional operand and save it to the mapping
263
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 319 for (size_t i = 1; i < node->operands.size(); i++)
264
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 176 shortCircuitBlocks.emplace_back(createBlock("land." + std::to_string(i) + "." + codeLoc), nullptr);
265 // Create conditional jump to the exit block if the first operand was true, otherwise to the next block
266
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 143 insertCondJump(firstOperandValue, shortCircuitBlocks.at(1).first, bExit);
267
268 // Create block for each operand
269
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 319 for (size_t i = 1; i < node->operands.size(); i++) {
270 // Switch to the next block
271
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 176 switchToBlock(shortCircuitBlocks.at(i).first);
272 // Evaluate operand and save the result in the mapping
273
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 176 shortCircuitBlocks.at(i).second = resolveValue(node->operands[i]);
274 // Replace the array entry with the current insert block, since the insert block could have changed in the meantime
275
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 176 shortCircuitBlocks.at(i).first = builder.GetInsertBlock();
276 // Check if there are more blocks to process
277
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 176 if (i == node->operands.size() - 1) {
278 // Insert a simple jump to the exit block for the last block
279
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 143 insertJump(bExit);
280 } else {
281 // Create conditional jump to the exit block if the operand was true, otherwise to the next block
282
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 33 insertCondJump(shortCircuitBlocks.at(i).second, shortCircuitBlocks.at(i + 1).first, bExit);
283 }
284 }
285
286 // Get the result with the phi node
287
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 143 switchToBlock(bExit);
288
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 143 llvm::PHINode *result = builder.CreatePHI(firstOperandValue->getType(), node->operands.size(), "land_phi");
289
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 462 for (const auto &[incomingBlock, value] : shortCircuitBlocks)
290
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 319 result->addIncoming(value, incomingBlock);
291
292 // Return the result
293
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 143 return LLVMExprResult{.value = result};
294 143 }
295
296 55600 std::any IRGenerator::visitBitwiseOrExpr(const BitwiseOrExprNode *node) {
297
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 55600 diGenerator.setSourceLocation(node);
298
299 // Check if only one operand is present -> loop through
300
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 55600 if (node->operands.size() == 1)
301
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 55536 return visit(node->operands.front());
302
303 // It is a bitwise or expression
304 // Evaluate first operand
305 64 const BitwiseXorExprNode *lhsNode = node->operands.front();
306
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 64 const QualType lhsSTy = lhsNode->getEvaluatedSymbolType(manIdx);
307
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 64 auto result = std::any_cast<LLVMExprResult>(visit(lhsNode));
308
309 // Evaluate all additional operands
310
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 129 for (size_t i = 1; i < node->operands.size(); i++) {
311 // Evaluate the operand
312 65 const BitwiseXorExprNode *rhsNode = node->operands[i];
313
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 65 const QualType rhsSTy = lhsNode->getEvaluatedSymbolType(manIdx);
314
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 65 auto rhs = std::any_cast<LLVMExprResult>(visit(rhsNode));
315
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 65 result = conversionManager.getBitwiseOrInst(node, result, lhsSTy, rhs, rhsSTy, i - 1);
316 }
317
318 // Return result
319
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 64 return result;
320 }
321
322 55665 std::any IRGenerator::visitBitwiseXorExpr(const BitwiseXorExprNode *node) {
323
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 55665 diGenerator.setSourceLocation(node);
324
325 // Check if only one operand is present -> loop through
326
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 55665 if (node->operands.size() == 1)
327
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 55663 return visit(node->operands.front());
328
329 // It is a bitwise xor expression
330 // Evaluate first operand
331 2 const BitwiseAndExprNode *lhsNode = node->operands.front();
332
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 2 const QualType lhsSTy = lhsNode->getEvaluatedSymbolType(manIdx);
333
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 2 auto result = std::any_cast<LLVMExprResult>(visit(lhsNode));
334
335 // Evaluate all additional operands
336
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 5 for (size_t i = 1; i < node->operands.size(); i++) {
337 // Evaluate the operand
338 3 const BitwiseAndExprNode *rhsNode = node->operands[i];
339
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 3 const QualType rhsSTy = lhsNode->getEvaluatedSymbolType(manIdx);
340
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 3 auto rhs = std::any_cast<LLVMExprResult>(visit(rhsNode));
341
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 3 result = conversionManager.getBitwiseXorInst(node, result, lhsSTy, rhs, rhsSTy);
342 }
343
344 // Return result
345
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 2 return result;
346 }
347
348 55668 std::any IRGenerator::visitBitwiseAndExpr(const BitwiseAndExprNode *node) {
349
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 55668 diGenerator.setSourceLocation(node);
350
351 // Check if only one operand is present -> loop through
352
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 55668 if (node->operands.size() == 1)
353
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 55638 return visit(node->operands.front());
354
355 // It is a bitwise and expression
356 // Evaluate first operand
357 30 const EqualityExprNode *lhsNode = node->operands.front();
358
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 30 const QualType lhsSTy = lhsNode->getEvaluatedSymbolType(manIdx);
359
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 30 auto result = std::any_cast<LLVMExprResult>(visit(lhsNode));
360
361 // Evaluate all additional operands
362
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 61 for (size_t i = 1; i < node->operands.size(); i++) {
363 // Evaluate the operand
364 31 const EqualityExprNode *rhsNode = node->operands[i];
365
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 31 const QualType rhsSTy = lhsNode->getEvaluatedSymbolType(manIdx);
366
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 31 auto rhs = std::any_cast<LLVMExprResult>(visit(rhsNode));
367
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 31 result = conversionManager.getBitwiseAndInst(rhsNode, result, lhsSTy, rhs, rhsSTy, i - 1);
368 }
369
370 // Return result
371
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 30 return result;
372 }
373
374 55699 std::any IRGenerator::visitEqualityExpr(const EqualityExprNode *node) {
375
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 55699 diGenerator.setSourceLocation(node);
376
377 // Check if only one operand is present -> loop through
378
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 55699 if (node->operands.size() == 1)
379
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 51277 return visit(node->operands.front());
380
381 // It is an equality expression
382 // Evaluate lhs
383 4422 const RelationalExprNode *lhsNode = node->operands[0];
384
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 4422 const QualType lhsSTy = lhsNode->getEvaluatedSymbolType(manIdx);
385
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 4422 auto result = std::any_cast<LLVMExprResult>(visit(lhsNode));
386
387 // Evaluate rhs
388 4422 const RelationalExprNode *rhsNode = node->operands[1];
389
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 4422 const QualType rhsSTy = rhsNode->getEvaluatedSymbolType(manIdx);
390
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 4422 auto rhs = std::any_cast<LLVMExprResult>(visit(rhsNode));
391
392 // Retrieve the result value, based on the exact operator
393
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 4422 switch (node->op) {
394 3172 case EqualityExprNode::EqualityOp::OP_EQUAL:
395
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 3172 result = conversionManager.getEqualInst(node, result, lhsSTy, rhs, rhsSTy, 0);
396 3172 break;
397 1250 case EqualityExprNode::EqualityOp::OP_NOT_EQUAL:
398
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 1250 result = conversionManager.getNotEqualInst(node, result, lhsSTy, rhs, rhsSTy, 0);
399 1250 break;
400 − default: // GCOV_EXCL_LINE
401 − throw CompilerError(UNHANDLED_BRANCH, "EqualityExpr fall-through"); // GCOV_EXCL_LINE
402 }
403
404 // Return the result
405
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 4422 return result;
406 }
407
408 60121 std::any IRGenerator::visitRelationalExpr(const RelationalExprNode *node) {
409
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 60121 diGenerator.setSourceLocation(node);
410
411 // Check if only one operand is present -> loop through
412
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 60121 if (node->operands.size() == 1)
413
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 56976 return visit(node->operands.front());
414
415 // It is a relational expression
416 // Evaluate lhs
417 3145 const ShiftExprNode *lhsNode = node->operands[0];
418
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 3145 const QualType lhsSTy = lhsNode->getEvaluatedSymbolType(manIdx);
419
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 3145 auto result = std::any_cast<LLVMExprResult>(visit(lhsNode));
420
421 // Evaluate rhs
422 3145 const ShiftExprNode *rhsNode = node->operands[1];
423
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 3145 const QualType rhsSTy = rhsNode->getEvaluatedSymbolType(manIdx);
424
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 3145 auto rhs = std::any_cast<LLVMExprResult>(visit(rhsNode));
425
426 // Retrieve the result value, based on the exact operator
427
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 3145 switch (node->op) {
428 1556 case RelationalExprNode::RelationalOp::OP_LESS:
429
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 1556 result = conversionManager.getLessInst(node, result, lhsSTy, rhs, rhsSTy);
430 1556 break;
431 447 case RelationalExprNode::RelationalOp::OP_GREATER:
432
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 447 result = conversionManager.getGreaterInst(node, result, lhsSTy, rhs, rhsSTy);
433 447 break;
434 330 case RelationalExprNode::RelationalOp::OP_LESS_EQUAL:
435
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 330 result = conversionManager.getLessEqualInst(node, result, lhsSTy, rhs, rhsSTy);
436 330 break;
437 812 case RelationalExprNode::RelationalOp::OP_GREATER_EQUAL:
438
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 812 result = conversionManager.getGreaterEqualInst(node, result, lhsSTy, rhs, rhsSTy);
439 812 break;
440 − default: // GCOV_EXCL_LINE
441 − throw CompilerError(UNHANDLED_BRANCH, "EqualityExpr fall-through"); // GCOV_EXCL_LINE
442 }
443
444 // Return the result
445
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 3145 return result;
446 }
447
448 63266 std::any IRGenerator::visitShiftExpr(const ShiftExprNode *node) {
449
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 63266 diGenerator.setSourceLocation(node);
450
451 // Check if only one operand is present -> loop through
452
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 63266 if (node->operands.size() == 1)
453
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 63206 return visit(node->operands.front());
454
455 // It is a shift expression
456 // Evaluate first operand
457 60 const AdditiveExprNode *lhsNode = node->operands.front();
458
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 60 QualType lhsSTy = lhsNode->getEvaluatedSymbolType(manIdx);
459
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 60 auto lhs = std::any_cast<LLVMExprResult>(visit(lhsNode));
460
461
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 60 auto opQueue = node->opQueue;
462 60 size_t operandIndex = 1;
463
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 160 while (!opQueue.empty()) {
464 100 const size_t operatorIndex = operandIndex - 1;
465 // Evaluate next operand
466 100 const AdditiveExprNode *rhsNode = node->operands[operandIndex++];
467
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 100 assert(rhsNode != nullptr);
468
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 100 const QualType rhsSTy = rhsNode->getEvaluatedSymbolType(manIdx);
469
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 100 auto rhs = std::any_cast<LLVMExprResult>(visit(rhsNode));
470
471 // Retrieve the result, based on the exact operator
472
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 100 switch (opQueue.front().first) {
473 95 case ShiftExprNode::ShiftOp::OP_SHIFT_LEFT:
474
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 95 lhs = conversionManager.getShiftLeftInst(node, lhs, lhsSTy, rhs, rhsSTy, operatorIndex);
475 95 break;
476 5 case ShiftExprNode::ShiftOp::OP_SHIFT_RIGHT:
477
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 5 lhs = conversionManager.getShiftRightInst(node, lhs, lhsSTy, rhs, rhsSTy, operatorIndex);
478 5 break;
479 − default: // GCOV_EXCL_LINE
480 − throw CompilerError(UNHANDLED_BRANCH, "AdditiveExpr fall-through"); // GCOV_EXCL_LINE
481 }
482
483 // Retrieve the new lhs symbol type
484 100 lhsSTy = opQueue.front().second;
485
486 100 opQueue.pop();
487 }
488
489 // Return the result
490
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 60 return lhs;
491 60 }
492
493 63366 std::any IRGenerator::visitAdditiveExpr(const AdditiveExprNode *node) {
494
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 63366 diGenerator.setSourceLocation(node);
495
496 // Check if only one operand is present -> loop through
497
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 63366 if (node->operands.size() == 1)
498
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 59880 return visit(node->operands.front());
499
500 // It is an additive expression
501 // Evaluate first operand
502 3486 const MultiplicativeExprNode *lhsNode = node->operands[0];
503
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 3486 QualType lhsSTy = lhsNode->getEvaluatedSymbolType(manIdx);
504
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 3486 auto lhs = std::any_cast<LLVMExprResult>(visit(lhsNode));
505
506
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 3486 auto opQueue = node->opQueue;
507 3486 size_t operandIndex = 1;
508
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 7457 while (!opQueue.empty()) {
509 3971 const size_t operatorIndex = operandIndex - 1;
510 // Evaluate next operand
511 3971 const MultiplicativeExprNode *rhsNode = node->operands[operandIndex++];
512
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 3971 assert(rhsNode != nullptr);
513
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 3971 const QualType rhsSTy = rhsNode->getEvaluatedSymbolType(manIdx);
514
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 3971 auto rhs = std::any_cast<LLVMExprResult>(visit(rhsNode));
515
516 // Retrieve the result, based on the exact operator
517
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 3971 switch (opQueue.front().first) {
518 2380 case AdditiveExprNode::AdditiveOp::OP_PLUS:
519
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 2380 lhs = conversionManager.getPlusInst(node, lhs, lhsSTy, rhs, rhsSTy, operatorIndex);
520 2380 break;
521 1591 case AdditiveExprNode::AdditiveOp::OP_MINUS:
522
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 1591 lhs = conversionManager.getMinusInst(node, lhs, lhsSTy, rhs, rhsSTy, operatorIndex);
523 1591 break;
524 − default: // GCOV_EXCL_LINE
525 − throw CompilerError(UNHANDLED_BRANCH, "AdditiveExpr fall-through"); // GCOV_EXCL_LINE
526 }
527
528 // Retrieve the new lhs symbol type
529 3971 lhsSTy = opQueue.front().second;
530
531 3971 opQueue.pop();
532 }
533
534 // Return the result
535
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 3486 return lhs;
536 3486 }
537
538 67337 std::any IRGenerator::visitMultiplicativeExpr(const MultiplicativeExprNode *node) {
539
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 67337 diGenerator.setSourceLocation(node);
540
541 // Check if only one operand is present -> loop through
542
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 67337 if (node->operands.size() == 1)
543
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 66578 return visit(node->operands.front());
544
545 // It is an additive expression
546 // Evaluate first operand
547 759 const CastExprNode *lhsNode = node->operands[0];
548
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 759 QualType lhsSTy = lhsNode->getEvaluatedSymbolType(manIdx);
549
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 759 auto result = std::any_cast<LLVMExprResult>(visit(lhsNode));
550
551
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 759 auto opQueue = node->opQueue;
552 759 size_t operandIndex = 1;
553
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 1538 while (!opQueue.empty()) {
554 779 const size_t operatorIndex = operandIndex - 1;
555 // Evaluate next operand
556 779 const CastExprNode *rhsNode = node->operands[operandIndex++];
557
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 779 assert(rhsNode != nullptr);
558
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 779 const QualType rhsSTy = rhsNode->getEvaluatedSymbolType(manIdx);
559
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 779 auto rhs = std::any_cast<LLVMExprResult>(visit(rhsNode));
560
561 // Retrieve the result, based on the exact operator
562
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 779 switch (opQueue.front().first) {
563 647 case MultiplicativeExprNode::MultiplicativeOp::OP_MUL:
564
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 647 result = conversionManager.getMulInst(node, result, lhsSTy, rhs, rhsSTy, operatorIndex);
565 647 break;
566 122 case MultiplicativeExprNode::MultiplicativeOp::OP_DIV:
567
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 122 result = conversionManager.getDivInst(node, result, lhsSTy, rhs, rhsSTy, operatorIndex);
568 122 break;
569 10 case MultiplicativeExprNode::MultiplicativeOp::OP_REM:
570
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 10 result = conversionManager.getRemInst(node, result, lhsSTy, rhs, rhsSTy);
571 10 break;
572 − default: // GCOV_EXCL_LINE
573 − throw CompilerError(UNHANDLED_BRANCH, "MultiplicativeExpr fall-through"); // GCOV_EXCL_LINE
574 }
575
576 // Retrieve the new lhs symbol type
577 779 lhsSTy = opQueue.front().second;
578 779 opQueue.pop();
579 }
580
581 // Return the result
582
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 759 return result;
583 759 }
584
585 68116 std::any IRGenerator::visitCastExpr(const CastExprNode *node) {
586
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 68116 diGenerator.setSourceLocation(node);
587
588 // Check if only one operand is present -> loop through
589
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 68116 if (!node->isCast)
590
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 66435 return visit(node->prefixUnaryExpr);
591
592 // It is a cast expression
593 // Retrieve target symbol type
594
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 1681 const QualType targetSTy = node->getEvaluatedSymbolType(manIdx);
595
596 // Evaluate rhs
597 1681 const AssignExprNode *rhsNode = node->assignExpr;
598
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 1681 const QualType rhsSTy = rhsNode->getEvaluatedSymbolType(manIdx);
599
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 1681 auto rhs = std::any_cast<LLVMExprResult>(visit(rhsNode));
600
601 // Retrieve the result value
602
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 1681 const LLVMExprResult result = conversionManager.getCastInst(node, targetSTy, rhs, rhsSTy);
603
604 // Return the result
605
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 1681 return result;
606 }
607
608 72508 std::any IRGenerator::visitPrefixUnaryExpr(const PrefixUnaryExprNode *node) {
609
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 72508 diGenerator.setSourceLocation(node);
610
611 // If no operator is applied, simply visit the atomic expression
612
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 72508 if (node->op == PrefixUnaryExprNode::PrefixUnaryOp::OP_NONE)
613
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 71624 return visit(node->postfixUnaryExpr);
614
615 // Evaluate lhs
616 884 const PrefixUnaryExprNode *lhsNode = node->prefixUnaryExpr;
617
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 884 const QualType lhsSTy = lhsNode->getEvaluatedSymbolType(manIdx);
618
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 884 auto lhs = std::any_cast<LLVMExprResult>(visit(lhsNode));
619
620
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 884 switch (node->op) {
621 16 case PrefixUnaryExprNode::PrefixUnaryOp::OP_MINUS: {
622 // Execute operation
623
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 16 lhs = conversionManager.getPrefixMinusInst(node, lhs, lhsSTy);
624
625 // This operator can not work in-place, so we need additional memory
626
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 16 lhs.ptr = insertAlloca(lhs.value->getType());
627
628 // Store the new value
629
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 16 insertStore(lhs.value, lhs.ptr);
630
631 16 break;
632 }
633 14 case PrefixUnaryExprNode::PrefixUnaryOp::OP_PLUS_PLUS: {
634 // Make sure the value is present
635
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 14 resolveValue(lhsNode, lhs);
636
637 // Execute operation
638
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 14 lhs.value = conversionManager.getPrefixPlusPlusInst(node, lhs, lhsSTy).value;
639
640 // If this operation happens on a volatile variable, store the value directly
641
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 14 if (lhs.entry && lhs.entry->isVolatile)
642 ✗ insertStore(lhs.value, lhs.ptr, true);
643
644 // Save to the existing address if possible, otherwise (e.g. for literals) allocate new space
645
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 14 if (!lhs.ptr)
646
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 1 lhs.ptr = insertAlloca(lhs.value->getType());
647
648 // Store the new value
649
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 14 insertStore(lhs.value, lhs.ptr);
650
651 14 break;
652 }
653 4 case PrefixUnaryExprNode::PrefixUnaryOp::OP_MINUS_MINUS: {
654 // Make sure the value is present
655
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 4 resolveValue(lhsNode, lhs);
656
657 // Execute operation
658
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 4 lhs.value = conversionManager.getPrefixMinusMinusInst(node, lhs, lhsSTy).value;
659
660 // If this operation happens on a volatile variable, store the value directly
661
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 4 if (lhs.entry && lhs.entry->isVolatile)
662 ✗ insertStore(lhs.value, lhs.ptr, true);
663
664 // Save to the existing address if possible, otherwise (e.g. for literals) allocate new space
665
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 4 if (!lhs.ptr)
666
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 1 lhs.ptr = insertAlloca(lhs.value->getType());
667
668 // Store the new value
669
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 4 insertStore(lhs.value, lhs.ptr);
670
671 4 break;
672 }
673 607 case PrefixUnaryExprNode::PrefixUnaryOp::OP_NOT: {
674 // Make sure the value is present
675
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 607 resolveValue(lhsNode, lhs);
676
677 // Execute operation
678
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 607 lhs = conversionManager.getPrefixNotInst(node, lhs, lhsSTy);
679
680 607 break;
681 }
682 1 case PrefixUnaryExprNode::PrefixUnaryOp::OP_BITWISE_NOT: {
683 // Make sure the value is present
684
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 1 resolveValue(lhsNode, lhs);
685
686 // Execute operation
687
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 1 lhs = conversionManager.getPrefixBitwiseNotInst(node, lhs, lhsSTy);
688
689 1 break;
690 }
691 170 case PrefixUnaryExprNode::PrefixUnaryOp::OP_DEREFERENCE: {
692 // Make sure the value is present
693
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 170 resolveValue(lhsNode, lhs);
694
695 // Execute operation
696 170 lhs.ptr = lhs.value;
697
698 // Reset the value
699 170 lhs.value = nullptr;
700
701 170 break;
702 }
703 72 case PrefixUnaryExprNode::PrefixUnaryOp::OP_ADDRESS_OF: {
704 // Make sure the address is present
705
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 72 resolveAddress(lhs);
706
707 // Execute operation
708 72 lhs.value = lhs.ptr;
709
710 // Reset the address
711 72 lhs.ptr = nullptr;
712
713 72 break;
714 }
715 − default: // GCOV_EXCL_LINE
716 − throw CompilerError(UNHANDLED_BRANCH, "PrefixUnaryExpr fall-through"); // GCOV_EXCL_LINE
717 }
718
719
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 884 return lhs;
720 }
721
722 89814 std::any IRGenerator::visitPostfixUnaryExpr(const PostfixUnaryExprNode *node) {
723
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 89814 diGenerator.setSourceLocation(node);
724
725 // If no operator is applied, simply visit the atomic expression
726
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 89814 if (node->op == PostfixUnaryExprNode::PostfixUnaryOp::OP_NONE)
727
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 71624 return visit(node->atomicExpr);
728
729 // Evaluate lhs
730 18190 const PostfixUnaryExprNode *lhsNode = node->postfixUnaryExpr;
731
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 18190 QualType lhsSTy = lhsNode->getEvaluatedSymbolType(manIdx);
732
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 18190 auto lhs = std::any_cast<LLVMExprResult>(visit(lhsNode));
733
734
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 18190 switch (node->op) {
735 2829 case PostfixUnaryExprNode::PostfixUnaryOp::OP_SUBSCRIPT: {
736 2829 const AssignExprNode *indexExpr = node->subscriptIndexExpr;
737
738 // Check if we need to generate a call to an overloaded operator function
739
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 2829 if (conversionManager.callsOverloadedOpFct(node, 0)) {
740
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 102 ResolverFct lhsV = [&] { return resolveValue(lhsSTy, lhs); };
741 204 ResolverFct lhsP = [&] { return resolveAddress(lhs); };
742 198 ResolverFct idxV = [&] { return resolveValue(indexExpr); };
743 108 ResolverFct idxP = [&] { return resolveAddress(indexExpr); };
744 102 lhs = conversionManager.callOperatorOverloadFct<2>(node, {lhsV, lhsP, idxV, idxP}, 0);
745 102 break;
746 102 }
747
748
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 2727 lhsSTy = lhsSTy.removeReferenceWrapper();
749
750 // Get the index value
751
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 2727 llvm::Value *indexValue = resolveValue(indexExpr);
752 // Come up with the address
753
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 2727 if (lhsSTy.isArray() && lhsSTy.getArraySize() != ARRAY_SIZE_UNKNOWN) { // Array
754 // Make sure the address is present
755
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 98 resolveAddress(lhs);
756
757 // Calculate address of array item
758
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 98 llvm::Type *lhsTy = lhsSTy.toLLVMType(sourceFile);
759
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 98 llvm::Value *indices[2] = {builder.getInt64(0), indexValue};
760
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 98 lhs.ptr = insertInBoundsGEP(lhsTy, lhs.ptr, indices);
761 } else { // Pointer
762 // Make sure the value is present
763
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 2629 resolveValue(lhsNode, lhs);
764
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 2629 assert(lhs.value != nullptr);
765
766 // Now the pointer is the value
767 2629 lhs.ptr = lhs.value;
768
769
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 2629 llvm::Type *lhsTy = lhsSTy.getContained().toLLVMType(sourceFile);
770 // Calculate address of pointer item
771
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 2629 lhs.ptr = insertInBoundsGEP(lhsTy, lhs.ptr, indexValue);
772 }
773
774 // Reset value and entry
775 2727 lhs.value = nullptr;
776 2727 lhs.entry = nullptr;
777 2727 break;
778 }
779 13511 case PostfixUnaryExprNode::PostfixUnaryOp::OP_MEMBER_ACCESS: {
780 // Get the address of the struct instance
781
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 13511 resolveAddress(lhs);
782
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 13511 lhsSTy = lhsSTy.removeReferenceWrapper();
783
784 // Auto de-reference pointer
785
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 13511 autoDeReferencePtr(lhs.ptr, lhsSTy);
786
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 13511 assert(lhsSTy.is(TY_STRUCT));
787
788 // Retrieve struct scope
789 13511 const std::string &fieldName = node->identifier;
790
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 13511 Scope *structScope = lhsSTy.getBodyScope();
791
792 // Retrieve field entry
793 13511 std::vector<size_t> indexPath;
794
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 13511 lhs.entry = structScope->symbolTable.lookupInComposedFields(fieldName, indexPath);
795
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 13511 assert(lhs.entry != nullptr);
796
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 13511 const QualType fieldSymbolType = lhs.entry->getQualType();
797
798 // Get address of the field in the struct instance
799
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 27022 std::vector<llvm::Value *> indices = {builder.getInt64(0)};
800
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 27028 for (const size_t index : indexPath)
801
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 13517 indices.push_back(builder.getInt32(index));
802
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 13511 const std::string name = fieldName + ".addr";
803
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 13511 llvm::Value *memberAddr = insertInBoundsGEP(lhsSTy.toLLVMType(sourceFile), lhs.ptr, indices, name);
804
805 // Set as ptr or refPtr, depending on the type
806
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 13511 if (fieldSymbolType.isRef()) {
807 153 lhs.ptr = nullptr;
808 153 lhs.refPtr = memberAddr;
809 } else {
810 13358 lhs.ptr = memberAddr;
811 13358 lhs.refPtr = nullptr;
812 }
813
814 // Reset the value
815 13511 lhs.value = nullptr;
816 13511 break;
817 13511 }
818 1507 case PostfixUnaryExprNode::PostfixUnaryOp::OP_PLUS_PLUS: {
819 // Make sure a value is present
820
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 1507 resolveValue(lhsNode, lhs);
821
822 // Allocate new local variable if required
823
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 1507 if (!lhs.ptr) {
824
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 2 assert(lhs.value != nullptr);
825
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 2 lhs.ptr = insertAlloca(lhs.value->getType());
826 }
827
828 // Execute operation
829
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 1507 const LLVMExprResult result = conversionManager.getPostfixPlusPlusInst(node, lhs, lhsSTy, 0);
830
831 // Save the new value to the old address
832
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 1507 if (conversionManager.callsOverloadedOpFct(node, 0)) {
833 9 lhs.value = result.value;
834 9 lhs.ptr = result.ptr;
835 } else {
836
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 1498 insertStore(result.value, lhs.ptr, lhs.entry && lhs.entry->isVolatile);
837 1498 lhs.ptr = nullptr;
838 }
839 1507 break;
840 }
841 343 case PostfixUnaryExprNode::PostfixUnaryOp::OP_MINUS_MINUS: {
842 // Make sure a value is present
843
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 343 resolveValue(lhsNode, lhs);
844
845 // Allocate new local variable if required
846
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 343 if (!lhs.ptr) {
847
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 2 assert(lhs.value != nullptr);
848
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 2 lhs.ptr = insertAlloca(lhs.value->getType());
849 }
850
851 // Execute operation
852
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 343 const LLVMExprResult result = conversionManager.getPostfixMinusMinusInst(node, lhs, lhsSTy, 0);
853
854 // Save the new value to the old address
855
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 343 if (conversionManager.callsOverloadedOpFct(node, 0)) {
856 7 lhs.value = result.value;
857 7 lhs.ptr = result.ptr;
858 } else {
859
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 336 insertStore(result.value, lhs.ptr, lhs.entry && lhs.entry->isVolatile);
860 336 lhs.ptr = nullptr;
861 }
862 343 break;
863 }
864 − default: // GCOV_EXCL_LINE
865 − throw CompilerError(UNHANDLED_BRANCH, "PostfixUnaryExpr fall-through"); // GCOV_EXCL_LINE
866 }
867
868
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 18190 return lhs;
869
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 102 }
870
871 71624 std::any IRGenerator::visitAtomicExpr(const AtomicExprNode *node) {
872
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 71624 diGenerator.setSourceLocation(node);
873
874 // If constant
875
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 71624 if (node->constant) {
876
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 12620 const auto constantValue = std::any_cast<llvm::Constant *>(visit(node->constant));
877
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 25240 return LLVMExprResult{.constant = constantValue};
878 }
879
880 // If value
881
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 59004 if (node->value)
882
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 14238 return visit(node->value);
883
884 // Is assign expression
885
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 44766 if (node->assignExpr)
886
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 477 return visit(node->assignExpr);
887
888 // Check for builtin calls
889
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 44289 if (node->builtinCall)
890
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 1481 return visit(node->builtinCall);
891
892 // Identifier (local or global variable access)
893
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 42808 assert(!node->identifierFragments.empty());
894
895 // Get symbol table entry
896
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 42808 const auto &[entry, accessScope, capture] = node->data.at(manIdx);
897
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 42808 assert(entry != nullptr);
898
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 42808 assert(accessScope != nullptr);
899
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 42808 const QualType varSymbolType = entry->getQualType();
900
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 42808 llvm::Type *varType = varSymbolType.toLLVMType(sourceFile);
901
902 // Check if external global variable
903
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 42808 if (entry->global && accessScope->isImportedBy(rootScope)) {
904 // External global variables need to be declared and allocated in the current module
905
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 74 llvm::Value *varAddress = module->getOrInsertGlobal(entry->name, varType);
906
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 74 entry->updateAddress(varAddress);
907 }
908
909 // Check if enum item
910
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 42808 if (accessScope->type == ScopeType::ENUM) {
911
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 221 const auto itemNode = spice_pointer_cast<const EnumItemNode *>(entry->declNode);
912
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 221 llvm::Constant *constantItemValue = llvm::ConstantInt::get(varType, itemNode->itemValue);
913
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 442 return LLVMExprResult{.constant = constantItemValue, .entry = entry};
914 }
915
916
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 42587 llvm::Value *address = entry->getAddress();
917
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 42587 assert(address != nullptr);
918
919 // If this is a function/procedure reference, return it as value
920
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 42587 if (entry->global && varSymbolType.isOneOf({TY_FUNCTION, TY_PROCEDURE})) {
921
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 4 llvm::Value *fatPtr = buildFatFctPtr(nullptr, nullptr, address);
922
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 8 return LLVMExprResult{.ptr = fatPtr, .entry = entry};
923 }
924
925 // Load the address of the referenced variable
926
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 42583 if (varSymbolType.isRef() || (capture && capture->getMode() == BY_REFERENCE))
927
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 5740 return LLVMExprResult{.refPtr = address, .entry = entry};
928
929
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 79426 return LLVMExprResult{.ptr = address, .entry = entry};
930 }
931
932 } // namespace spice::compiler
933