GCC Code Coverage Report

Directory: ../
Coverage: low: ≥ 0% medium: ≥ 75.0% high: ≥ 90.0%
Coverage Exec / Excl / Total
Lines: 95.8% 480 / 17 / 518
Functions: 95.0% 19 / 0 / 20
Branches: 57.1% 522 / 36 / 950
src/irgenerator/GenExpressions.cpp
Line Branch Exec Source
1 // Copyright (c) 2021-2026 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 17742 std::any IRGenerator::visitAssignExpr(const AssignExprNode *node) {
12 17742 diGenerator.setSourceLocation(node);
13
14 // Visit ternary expression
15
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 17742 if (node->ternaryExpr)
16 ✗ return visit(node->ternaryExpr);
17
18 // Assign or compound assign operation
19
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 17742 if (node->op != AssignExprNode::AssignOp::OP_NONE) {
20 17742 const ExprNode *lhsNode = node->lhs;
21 17742 const ExprNode *rhsNode = node->rhs;
22
23 // Normal assignment
24
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 17742 if (node->op == AssignExprNode::AssignOp::OP_ASSIGN)
25
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 31184 return doAssignment(lhsNode, rhsNode, node);
26
27 // Compound assignment
28 // Get symbol types of left and right side
29
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 2150 const QualType lhsSTy = lhsNode->getEvaluatedSymbolType(manIdx);
30
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 2150 const QualType rhsSTy = rhsNode->getEvaluatedSymbolType(manIdx);
31
32 // Retrieve rhs
33
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 2150 auto rhs = std::any_cast<LLVMExprResult>(visit(rhsNode));
34 // Retrieve lhs
35
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 2150 auto lhs = std::any_cast<LLVMExprResult>(visit(lhsNode));
36
37 2150 LLVMExprResult result;
38
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 2150 switch (node->op) {
39 1093 case AssignExprNode::AssignOp::OP_PLUS_EQUAL:
40
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 1093 result = conversionManager.getPlusEqualInst(node, lhs, lhsSTy, rhs, rhsSTy);
41 1093 break;
42 77 case AssignExprNode::AssignOp::OP_MINUS_EQUAL:
43
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 77 result = conversionManager.getMinusEqualInst(node, lhs, lhsSTy, rhs, rhsSTy);
44 77 break;
45 160 case AssignExprNode::AssignOp::OP_MUL_EQUAL:
46
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 160 result = conversionManager.getMulEqualInst(node, lhs, lhsSTy, rhs, rhsSTy);
47 160 break;
48 101 case AssignExprNode::AssignOp::OP_DIV_EQUAL:
49
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 101 result = conversionManager.getDivEqualInst(node, lhs, lhsSTy, rhs, rhsSTy);
50 101 break;
51 40 case AssignExprNode::AssignOp::OP_REM_EQUAL:
52
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 40 result = conversionManager.getRemEqualInst(node, lhs, lhsSTy, rhs, rhsSTy);
53 40 break;
54 11 case AssignExprNode::AssignOp::OP_SHL_EQUAL:
55
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 11 result = conversionManager.getSHLEqualInst(node, lhs, lhsSTy, rhs, rhsSTy);
56 11 break;
57 12 case AssignExprNode::AssignOp::OP_SHR_EQUAL:
58
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 12 result = conversionManager.getSHREqualInst(node, lhs, lhsSTy, rhs, rhsSTy);
59 12 break;
60 17 case AssignExprNode::AssignOp::OP_AND_EQUAL:
61
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 17 result = conversionManager.getAndEqualInst(node, lhs, lhsSTy, rhs, rhsSTy);
62 17 break;
63 13 case AssignExprNode::AssignOp::OP_OR_EQUAL:
64
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 13 result = conversionManager.getOrEqualInst(node, lhs, lhsSTy, rhs, rhsSTy);
65 13 break;
66 626 case AssignExprNode::AssignOp::OP_XOR_EQUAL:
67
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 626 result = conversionManager.getXorEqualInst(node, lhs, lhsSTy, rhs, rhsSTy);
68 626 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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 2150 if (result.ptr) { // The operation allocated more memory
74 ✗ if (lhs.entry)
75 ✗ lhs.entry->updateAddress(result.ptr);
76
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 2150 } else if (result.value) { // The operation only updated the value
77 // Store the result
78 1692 lhs.value = result.value;
79
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 1692 insertStore(lhs.value, lhs.ptr, lhs.entry && lhs.entry->isVolatile);
80 }
81
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 2150 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 1102 std::any IRGenerator::visitTernaryExpr(const TernaryExprNode *node) {
89 1102 diGenerator.setSourceLocation(node);
90
91 // Check if only one operand is present -> loop through
92
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 1102 if (!node->falseExpr)
93 ✗ return visit(node->condition);
94
95 // It is a ternary
96 // Retrieve the condition value
97 1102 llvm::Value *condValue = resolveValue(node->condition);
98
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 1102 const ExprNode *trueNode = node->isShortened ? node->condition : node->trueExpr;
99 1102 const ExprNode *falseNode = node->falseExpr;
100
101 1102 llvm::Value *resultValue = nullptr;
102 1102 llvm::Value *resultPtr = nullptr;
103 1102 SymbolTableEntry *anonymousSymbol = nullptr;
104
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 1102 if (trueNode->hasCompileTimeValue(manIdx) && falseNode->hasCompileTimeValue(manIdx)) {
105 // If both are constants, we can simply emit a selection instruction
106 358 llvm::Value *trueValue = resolveValue(trueNode);
107 358 llvm::Value *falseValue = resolveValue(falseNode);
108
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 358 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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 744 const std::string codeLoc = node->codeLoc.toPrettyLineAndColumn();
112
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 744 llvm::BasicBlock *condTrue = createBlock("cond.true." + codeLoc);
113
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 744 llvm::BasicBlock *condFalse = createBlock("cond.false." + codeLoc);
114
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 744 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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 744 insertCondJump(condValue, condTrue, condFalse);
118
119 // Fill true block
120
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 744 switchToBlock(condTrue);
121
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 744 const QualType &resultType = node->getEvaluatedSymbolType(manIdx);
122 744 llvm::Value *trueValue = nullptr;
123 744 llvm::Value *truePtr = nullptr;
124
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 744 if (node->falseSideCallsCopyCtor || resultType.isRef()) { // both sides or only the false side needs copy ctor call
125
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 43 truePtr = resolveAddress(trueNode);
126
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 701 } 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));
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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 699 trueValue = resolveValue(trueNode);
132 }
133 // Set the true block to the current insert point, since it could have changed in the meantime
134 744 condTrue = builder.GetInsertBlock();
135
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 744 insertJump(condExit);
136
137 // Fill false block
138
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 744 switchToBlock(condFalse);
139 744 llvm::Value *falseValue = nullptr;
140 744 llvm::Value *falsePtr = nullptr;
141
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 744 if (node->trueSideCallsCopyCtor || resultType.isRef()) { // both sides or only the true side needs copy ctor call
142
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 31 falsePtr = resolveAddress(falseNode);
143
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 713 } else if (node->falseSideCallsCopyCtor) { // only false side needs copy ctor call
144
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 14 llvm::Value *originalPtr = resolveAddress(falseNode);
145
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 14 falsePtr = insertAlloca(falseNode->getEvaluatedSymbolType(manIdx));
146
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 42 generateCtorOrDtorCall(falsePtr, node->calledCopyCtor, {originalPtr});
147 } else { // neither true nor false side need copy ctor call
148
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 699 falseValue = resolveValue(falseNode);
149 }
150 // Set the true block to the current insert point, since it could have changed in the meantime
151 744 condFalse = builder.GetInsertBlock();
152
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 744 insertJump(condExit);
153
154 // Fill the exit block
155
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 744 switchToBlock(condExit);
156
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 744 if (node->trueSideCallsCopyCtor || node->falseSideCallsCopyCtor || resultType.isRef()) { // one side calls copy ctor
157
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 45 llvm::PHINode *phiInst = builder.CreatePHI(builder.getPtrTy(), 2, "cond.result");
158
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 45 phiInst->addIncoming(truePtr, condTrue);
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 45 phiInst->addIncoming(falsePtr, condFalse);
160
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 45 if (node->trueSideCallsCopyCtor && node->falseSideCallsCopyCtor) { // both sides need copy ctor call
161
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 6 resultPtr = insertAlloca(resultType);
162
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 18 generateCtorOrDtorCall(resultPtr, node->calledCopyCtor, {phiInst});
163 } else {
164 39 resultPtr = phiInst;
165 }
166 } else { // neither true nor false side calls copy ctor
167
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 699 assert(trueValue != nullptr);
168
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 699 llvm::PHINode *phiInst = builder.CreatePHI(resultType.toLLVMType(sourceFile), 2, "cond.result");
169
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 699 phiInst->addIncoming(trueValue, condTrue);
170
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 699 phiInst->addIncoming(falseValue, condFalse);
171 699 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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 744 anonymousSymbol = currentScope->symbolTable.lookupAnonymous(node);
176
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 744 if (anonymousSymbol != nullptr) {
177
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 10 if (!resultPtr) {
178 ✗ resultPtr = insertAlloca(anonymousSymbol->getQualType());
179 ✗ insertStore(resultValue, resultPtr);
180 }
181
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 10 anonymousSymbol->updateAddress(resultPtr);
182 }
183 744 }
184
185
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 2204 return LLVMExprResult{.value = resultValue, .ptr = resultPtr, .entry = anonymousSymbol};
186 }
187
188 1696 std::any IRGenerator::visitLogicalOrExpr(const LogicalOrExprNode *node) {
189
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 1696 diGenerator.setSourceLocation(node);
190
191 // Check if only one operand is present -> loop through
192
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 1696 if (node->operands.size() == 1)
193 ✗ 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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 1696 const std::string codeLoc = node->codeLoc.toPrettyLineAndColumn();
198
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 1696 llvm::BasicBlock *bExit = createBlock("lor.exit." + codeLoc);
199
200 // Visit the first operand
201
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 1696 llvm::Value *firstOperandValue = resolveValue(node->operands.front());
202
203 // Prepare an array for value-to-block-mapping
204 1696 std::vector<std::pair<llvm::BasicBlock *, llvm::Value *>> shortCircuitBlocks;
205
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 1696 shortCircuitBlocks.reserve(node->operands.size());
206 // The first element is the first operand value with the original block
207
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 1696 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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 3955 for (size_t i = 1; i < node->operands.size(); i++)
210
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 2259 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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 1696 insertCondJump(firstOperandValue, bExit, shortCircuitBlocks.at(1).first);
213
214 // Create block for each operand
215
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 3955 for (size_t i = 1; i < node->operands.size(); i++) {
216 // Switch to the next block
217
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 2259 switchToBlock(shortCircuitBlocks.at(i).first);
218 // Evaluate operand and save the result in the mapping
219
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 2259 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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 2259 shortCircuitBlocks.at(i).first = builder.GetInsertBlock();
222 // Check if there are more blocks to process
223
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 2259 if (i == node->operands.size() - 1) {
224 // Insert a simple jump to the exit block for the last block
225
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 1696 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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 563 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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 1696 switchToBlock(bExit);
234
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 1696 llvm::PHINode *result = builder.CreatePHI(firstOperandValue->getType(), node->operands.size(), "lor_phi");
235
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 11302 for (const auto &[incomingBlock, value] : shortCircuitBlocks)
236
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 3955 result->addIncoming(value, incomingBlock);
237
238 // Return the result
239
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 1696 return LLVMExprResult{.value = result};
240 1696 }
241
242 1019 std::any IRGenerator::visitLogicalAndExpr(const LogicalAndExprNode *node) {
243
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 1019 diGenerator.setSourceLocation(node);
244
245 // Check if only one operand is present -> loop through
246
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 1019 if (node->operands.size() == 1)
247 ✗ 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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 1019 const std::string codeLoc = node->codeLoc.toPrettyLineAndColumn();
252
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 1019 llvm::BasicBlock *bExit = createBlock("land.exit." + codeLoc);
253
254 // Visit the first operand
255
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 1019 llvm::Value *firstOperandValue = resolveValue(node->operands.front());
256
257 // Prepare an array for value-to-block-mapping
258 1019 std::vector<std::pair<llvm::BasicBlock *, llvm::Value *>> shortCircuitBlocks;
259
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 1019 shortCircuitBlocks.reserve(node->operands.size());
260 // The first element is the first operand value with the original block
261
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 1019 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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 2445 for (size_t i = 1; i < node->operands.size(); i++)
264
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 1426 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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 1019 insertCondJump(firstOperandValue, shortCircuitBlocks.at(1).first, bExit);
267
268 // Create block for each operand
269
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 2445 for (size_t i = 1; i < node->operands.size(); i++) {
270 // Switch to the next block
271
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 1426 switchToBlock(shortCircuitBlocks.at(i).first);
272 // Evaluate operand and save the result in the mapping
273
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 1426 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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 1426 shortCircuitBlocks.at(i).first = builder.GetInsertBlock();
276 // Check if there are more blocks to process
277
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 1426 if (i == node->operands.size() - 1) {
278 // Insert a simple jump to the exit block for the last block
279
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 1019 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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 407 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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 1019 switchToBlock(bExit);
288
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 1019 llvm::PHINode *result = builder.CreatePHI(firstOperandValue->getType(), node->operands.size(), "land_phi");
289
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 6928 for (const auto &[incomingBlock, value] : shortCircuitBlocks)
290
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 2445 result->addIncoming(value, incomingBlock);
291
292 // Return the result
293
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 1019 return LLVMExprResult{.value = result};
294 1019 }
295
296 252 std::any IRGenerator::visitBitwiseOrExpr(const BitwiseOrExprNode *node) {
297
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 252 diGenerator.setSourceLocation(node);
298
299 // Check if only one operand is present -> loop through
300
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 252 if (node->operands.size() == 1)
301 ✗ return visit(node->operands.front());
302
303 // It is a bitwise or expression
304 // Evaluate first operand
305 252 const ExprNode *lhsNode = node->operands.front();
306
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 252 const QualType lhsSTy = lhsNode->getEvaluatedSymbolType(manIdx);
307
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 252 auto result = std::any_cast<LLVMExprResult>(visit(lhsNode));
308
309 // Evaluate all additional operands
310
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 505 for (size_t i = 1; i < node->operands.size(); i++) {
311 // Evaluate the operand
312 253 const ExprNode *rhsNode = node->operands[i];
313
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 253 const QualType rhsSTy = rhsNode->getEvaluatedSymbolType(manIdx);
314
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 253 auto rhs = std::any_cast<LLVMExprResult>(visit(rhsNode));
315
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 253 result = conversionManager.getBitwiseOrInst(node, result, lhsSTy, rhs, rhsSTy, i - 1);
316 }
317
318 // Return result
319
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 252 return result;
320 }
321
322 36 std::any IRGenerator::visitBitwiseXorExpr(const BitwiseXorExprNode *node) {
323
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 36 diGenerator.setSourceLocation(node);
324
325 // Check if only one operand is present -> loop through
326
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 36 if (node->operands.size() == 1)
327 ✗ return visit(node->operands.front());
328
329 // It is a bitwise xor expression
330 // Evaluate first operand
331 36 const ExprNode *lhsNode = node->operands.front();
332
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 36 const QualType lhsSTy = lhsNode->getEvaluatedSymbolType(manIdx);
333
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 36 auto result = std::any_cast<LLVMExprResult>(visit(lhsNode));
334
335 // Evaluate all additional operands
336
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 73 for (size_t i = 1; i < node->operands.size(); i++) {
337 // Evaluate the operand
338 37 const ExprNode *rhsNode = node->operands[i];
339
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 37 const QualType rhsSTy = rhsNode->getEvaluatedSymbolType(manIdx);
340
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 37 auto rhs = std::any_cast<LLVMExprResult>(visit(rhsNode));
341
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 37 result = conversionManager.getBitwiseXorInst(node, result, lhsSTy, rhs, rhsSTy, i - 1);
342 }
343
344 // Return result
345
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 36 return result;
346 }
347
348 67 std::any IRGenerator::visitBitwiseAndExpr(const BitwiseAndExprNode *node) {
349
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 67 diGenerator.setSourceLocation(node);
350
351 // Check if only one operand is present -> loop through
352
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 67 if (node->operands.size() == 1)
353 ✗ return visit(node->operands.front());
354
355 // It is a bitwise and expression
356 // Evaluate first operand
357 67 const ExprNode *lhsNode = node->operands.front();
358
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 67 const QualType lhsSTy = lhsNode->getEvaluatedSymbolType(manIdx);
359
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 67 auto result = std::any_cast<LLVMExprResult>(visit(lhsNode));
360
361 // Evaluate all additional operands
362
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 135 for (size_t i = 1; i < node->operands.size(); i++) {
363 // Evaluate the operand
364 68 const ExprNode *rhsNode = node->operands[i];
365
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 68 const QualType rhsSTy = rhsNode->getEvaluatedSymbolType(manIdx);
366
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 68 auto rhs = std::any_cast<LLVMExprResult>(visit(rhsNode));
367
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 68 result = conversionManager.getBitwiseAndInst(node, result, lhsSTy, rhs, rhsSTy, i - 1);
368 }
369
370 // Return result
371
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 67 return result;
372 }
373
374 12680 std::any IRGenerator::visitEqualityExpr(const EqualityExprNode *node) {
375
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 12680 diGenerator.setSourceLocation(node);
376
377 // Check if only one operand is present -> loop through
378
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 12680 if (node->operands.size() == 1)
379 ✗ return visit(node->operands.front());
380
381 // It is an equality expression
382 // Evaluate lhs
383 12680 const ExprNode *lhsNode = node->operands[0];
384
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 12680 const QualType lhsSTy = lhsNode->getEvaluatedSymbolType(manIdx);
385
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 12680 auto result = std::any_cast<LLVMExprResult>(visit(lhsNode));
386
387 // Evaluate rhs
388 12680 const ExprNode *rhsNode = node->operands[1];
389
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 12680 const QualType rhsSTy = rhsNode->getEvaluatedSymbolType(manIdx);
390
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 12680 auto rhs = std::any_cast<LLVMExprResult>(visit(rhsNode));
391
392 // Retrieve the result value, based on the exact operator
393
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 12680 switch (node->op) {
394 9623 case EqualityExprNode::EqualityOp::OP_EQUAL:
395
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 9623 result = conversionManager.getEqualInst(node, result, lhsSTy, rhs, rhsSTy);
396 9623 break;
397 3057 case EqualityExprNode::EqualityOp::OP_NOT_EQUAL:
398
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 3057 result = conversionManager.getNotEqualInst(node, result, lhsSTy, rhs, rhsSTy);
399 3057 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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 12680 return result;
406 }
407
408 8336 std::any IRGenerator::visitRelationalExpr(const RelationalExprNode *node) {
409
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 8336 diGenerator.setSourceLocation(node);
410
411 // Check if only one operand is present -> loop through
412
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 8336 if (node->operands.size() == 1)
413 ✗ return visit(node->operands.front());
414
415 // It is a relational expression
416 // Evaluate lhs
417 8336 const ExprNode *lhsNode = node->operands[0];
418
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 8336 const QualType lhsSTy = lhsNode->getEvaluatedSymbolType(manIdx);
419
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 8336 auto result = std::any_cast<LLVMExprResult>(visit(lhsNode));
420
421 // Evaluate rhs
422 8336 const ExprNode *rhsNode = node->operands[1];
423
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 8336 const QualType rhsSTy = rhsNode->getEvaluatedSymbolType(manIdx);
424
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 8336 auto rhs = std::any_cast<LLVMExprResult>(visit(rhsNode));
425
426 // Retrieve the result value, based on the exact operator
427
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 8336 switch (node->op) {
428 3854 case RelationalExprNode::RelationalOp::OP_LESS:
429
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 3854 result = conversionManager.getLessInst(node, result, lhsSTy, rhs, rhsSTy);
430 3854 break;
431 1562 case RelationalExprNode::RelationalOp::OP_GREATER:
432
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 1562 result = conversionManager.getGreaterInst(node, result, lhsSTy, rhs, rhsSTy);
433 1562 break;
434 1103 case RelationalExprNode::RelationalOp::OP_LESS_EQUAL:
435
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 1103 result = conversionManager.getLessEqualInst(node, result, lhsSTy, rhs, rhsSTy);
436 1103 break;
437 1817 case RelationalExprNode::RelationalOp::OP_GREATER_EQUAL:
438
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 1817 result = conversionManager.getGreaterEqualInst(node, result, lhsSTy, rhs, rhsSTy);
439 1817 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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 8336 return result;
446 }
447
448 1299 std::any IRGenerator::visitShiftExpr(const ShiftExprNode *node) {
449
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 1299 diGenerator.setSourceLocation(node);
450
451 // Check if only one operand is present -> loop through
452
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 1299 if (node->operands.size() == 1)
453 ✗ return visit(node->operands.front());
454
455 // It is a shift expression
456 // Evaluate first operand
457 1299 const ExprNode *lhsNode = node->operands.front();
458
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 1299 QualType lhsSTy = lhsNode->getEvaluatedSymbolType(manIdx);
459
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 1299 auto lhs = std::any_cast<LLVMExprResult>(visit(lhsNode));
460
461
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 1299 auto opQueue = node->opQueue;
462 1299 size_t operandIndex = 1;
463
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 2887 while (!opQueue.empty()) {
464 1588 const size_t operatorIndex = operandIndex - 1;
465 // Evaluate next operand
466 1588 const ExprNode *rhsNode = node->operands[operandIndex++];
467
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 1588 assert(rhsNode != nullptr);
468
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 1588 const QualType rhsSTy = rhsNode->getEvaluatedSymbolType(manIdx);
469
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 1588 auto rhs = std::any_cast<LLVMExprResult>(visit(rhsNode));
470
471 // Retrieve the result, based on the exact operator
472
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 1588 switch (opQueue.front().first) {
473 1404 case ShiftExprNode::ShiftOp::OP_SHIFT_LEFT:
474
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 1404 lhs = conversionManager.getShiftLeftInst(node, lhs, lhsSTy, rhs, rhsSTy, operatorIndex);
475 1404 break;
476 184 case ShiftExprNode::ShiftOp::OP_SHIFT_RIGHT:
477
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 184 lhs = conversionManager.getShiftRightInst(node, lhs, lhsSTy, rhs, rhsSTy, operatorIndex);
478 184 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 1588 lhsSTy = opQueue.front().second;
485
486 1588 opQueue.pop();
487 }
488
489 // Return the result
490
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 1299 return lhs;
491 1299 }
492
493 8142 std::any IRGenerator::visitAdditiveExpr(const AdditiveExprNode *node) {
494
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 8142 diGenerator.setSourceLocation(node);
495
496 // Check if only one operand is present -> loop through
497
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 8142 if (node->operands.size() == 1)
498 ✗ return visit(node->operands.front());
499
500 // It is an additive expression
501 // Evaluate first operand
502 8142 const ExprNode *lhsNode = node->operands[0];
503
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 8142 QualType lhsSTy = lhsNode->getEvaluatedSymbolType(manIdx);
504
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 8142 auto lhs = std::any_cast<LLVMExprResult>(visit(lhsNode));
505
506
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 8142 auto opQueue = node->opQueue;
507 8142 size_t operandIndex = 1;
508
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 17402 while (!opQueue.empty()) {
509 9260 const size_t operatorIndex = operandIndex - 1;
510 // Evaluate next operand
511 9260 const ExprNode *rhsNode = node->operands[operandIndex++];
512
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 9260 assert(rhsNode != nullptr);
513
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 9260 const QualType rhsSTy = rhsNode->getEvaluatedSymbolType(manIdx);
514
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 9260 auto rhs = std::any_cast<LLVMExprResult>(visit(rhsNode));
515
516 // Retrieve the result, based on the exact operator
517
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 9260 switch (opQueue.front().first) {
518 5829 case AdditiveExprNode::AdditiveOp::OP_PLUS:
519
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 5829 lhs = conversionManager.getPlusInst(node, lhs, lhsSTy, rhs, rhsSTy, operatorIndex);
520 5829 break;
521 3431 case AdditiveExprNode::AdditiveOp::OP_MINUS:
522
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 3431 lhs = conversionManager.getMinusInst(node, lhs, lhsSTy, rhs, rhsSTy, operatorIndex);
523 3431 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 9260 lhsSTy = opQueue.front().second;
530
531 9260 opQueue.pop();
532 }
533
534 // Return the result
535
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 8142 return lhs;
536 8142 }
537
538 2711 std::any IRGenerator::visitMultiplicativeExpr(const MultiplicativeExprNode *node) {
539
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 2711 diGenerator.setSourceLocation(node);
540
541 // Check if only one operand is present -> loop through
542
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 2711 if (node->operands.size() == 1)
543 ✗ return visit(node->operands.front());
544
545 // It is an additive expression
546 // Evaluate first operand
547 2711 const ExprNode *lhsNode = node->operands[0];
548
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 2711 QualType lhsSTy = lhsNode->getEvaluatedSymbolType(manIdx);
549
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 2711 auto result = std::any_cast<LLVMExprResult>(visit(lhsNode));
550
551
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 2711 auto opQueue = node->opQueue;
552 2711 size_t operandIndex = 1;
553
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 5468 while (!opQueue.empty()) {
554 2757 const size_t operatorIndex = operandIndex - 1;
555 // Evaluate next operand
556 2757 const ExprNode *rhsNode = node->operands[operandIndex++];
557
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 2757 assert(rhsNode != nullptr);
558
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 2757 const QualType rhsSTy = rhsNode->getEvaluatedSymbolType(manIdx);
559
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 2757 auto rhs = std::any_cast<LLVMExprResult>(visit(rhsNode));
560
561 // Retrieve the result, based on the exact operator
562
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 2757 switch (opQueue.front().first) {
563 2168 case MultiplicativeExprNode::MultiplicativeOp::OP_MUL:
564
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 2168 result = conversionManager.getMulInst(node, result, lhsSTy, rhs, rhsSTy, operatorIndex);
565 2168 break;
566 465 case MultiplicativeExprNode::MultiplicativeOp::OP_DIV:
567
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 465 result = conversionManager.getDivInst(node, result, lhsSTy, rhs, rhsSTy, operatorIndex);
568 465 break;
569 124 case MultiplicativeExprNode::MultiplicativeOp::OP_REM:
570
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 124 result = conversionManager.getRemInst(node, result, lhsSTy, rhs, rhsSTy);
571 124 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 2757 lhsSTy = opQueue.front().second;
578 2757 opQueue.pop();
579 }
580
581 // Return the result
582
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 2711 return result;
583 2711 }
584
585 6756 std::any IRGenerator::visitCastExpr(const CastExprNode *node) {
586
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 6756 diGenerator.setSourceLocation(node);
587
588 // Check if only one operand is present -> loop through
589
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 6756 if (!node->isCast)
590 ✗ return visit(node->prefixUnaryExpr);
591
592 // It is a cast expression
593 // Retrieve target symbol type
594
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 6756 const QualType targetSTy = node->getEvaluatedSymbolType(manIdx);
595
596 // Evaluate rhs
597 6756 const ExprNode *rhsNode = node->assignExpr;
598
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 6756 const QualType rhsSTy = rhsNode->getEvaluatedSymbolType(manIdx);
599
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 6756 auto rhs = std::any_cast<LLVMExprResult>(visit(rhsNode));
600
601 // Retrieve the result value
602
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 6756 const LLVMExprResult result = conversionManager.getCastInst(node, targetSTy, rhs, rhsSTy);
603
604 // Return the result
605
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 6756 return result;
606 }
607
608 5747 std::any IRGenerator::visitPrefixUnaryExpr(const PrefixUnaryExprNode *node) {
609
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 5747 diGenerator.setSourceLocation(node);
610
611 // If no operator is applied, simply visit the atomic expression
612
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 5747 if (node->op == PrefixUnaryExprNode::PrefixUnaryOp::OP_NONE)
613 ✗ return visit(node->postfixUnaryExpr);
614
615 // Evaluate lhs
616 5747 const ExprNode *lhsNode = node->prefixUnaryExpr;
617
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 5747 const QualType lhsSTy = lhsNode->getEvaluatedSymbolType(manIdx);
618
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 5747 auto lhs = std::any_cast<LLVMExprResult>(visit(lhsNode));
619
620
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 5747 switch (node->op) {
621 991 case PrefixUnaryExprNode::PrefixUnaryOp::OP_MINUS: {
622 // Execute operation
623
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 991 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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 991 lhs.ptr = insertAlloca(lhs.value->getType());
627
628 // Store the new value
629
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 991 insertStore(lhs.value, lhs.ptr);
630
631 991 break;
632 }
633 83 case PrefixUnaryExprNode::PrefixUnaryOp::OP_PLUS_PLUS: {
634 // Execute operation
635
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 83 lhs.value = conversionManager.getPrefixPlusPlusInst(node, lhs, lhsSTy).value;
636
637 // If this operation happens on a volatile variable, store the value directly
638
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 83 if (lhs.entry && lhs.entry->isVolatile)
639 ✗ insertStore(lhs.value, lhs.ptr, true);
640
641 // Save to the existing address if possible, otherwise (e.g. for literals) allocate new space
642
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 83 if (!lhs.ptr)
643
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 1 lhs.ptr = insertAlloca(lhs.value->getType());
644
645 // Store the new value
646
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 83 insertStore(lhs.value, lhs.ptr);
647
648 83 break;
649 }
650 18 case PrefixUnaryExprNode::PrefixUnaryOp::OP_MINUS_MINUS: {
651 // Execute operation
652
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 18 lhs.value = conversionManager.getPrefixMinusMinusInst(node, lhs, lhsSTy).value;
653
654 // If this operation happens on a volatile variable, store the value directly
655
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 18 if (lhs.entry && lhs.entry->isVolatile)
656 ✗ insertStore(lhs.value, lhs.ptr, true);
657
658 // Save to the existing address if possible, otherwise (e.g. for literals) allocate new space
659
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 18 if (!lhs.ptr)
660
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 1 lhs.ptr = insertAlloca(lhs.value->getType());
661
662 // Store the new value
663
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 18 insertStore(lhs.value, lhs.ptr);
664
665 18 break;
666 }
667 3245 case PrefixUnaryExprNode::PrefixUnaryOp::OP_NOT: {
668 // Execute operation
669
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 3245 lhs = conversionManager.getPrefixNotInst(node, lhs, lhsSTy);
670 3245 break;
671 }
672 12 case PrefixUnaryExprNode::PrefixUnaryOp::OP_BITWISE_NOT: {
673 // Execute operation
674
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 12 lhs = conversionManager.getPrefixBitwiseNotInst(node, lhs, lhsSTy);
675 12 break;
676 }
677 853 case PrefixUnaryExprNode::PrefixUnaryOp::OP_DEREFERENCE: {
678 // If only .refPtr is filled, we can't simply rewire the fields, but need to actually perform a load.
679 // For that we can use resolveValue().
680
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 853 const bool onlyRefPtrIsFilled = lhs.value == nullptr && lhs.ptr == nullptr;
681 // Rewire the fields
682
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 853 llvm::Value *newRefPtr = onlyRefPtrIsFilled ? resolveValue(lhsNode, lhs) : lhs.ptr;
683 853 llvm::Value *newPtr = lhs.value;
684 853 lhs = {.ptr = newPtr, .refPtr = newRefPtr};
685 853 break;
686 }
687 545 case PrefixUnaryExprNode::PrefixUnaryOp::OP_ADDRESS_OF: {
688 // If only .value is filled, we can't simply rewire the fields, but need to actually perform alloca + store.
689 // For that we can use resolveAddress().
690
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 545 const bool onlyValueIsFilled = lhs.ptr == nullptr && lhs.refPtr == nullptr;
691 // Rewire the fields
692
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 545 llvm::Value *newValue = onlyValueIsFilled ? resolveAddress(lhs) : lhs.ptr;
693 545 llvm::Value *newPtr = lhs.refPtr;
694 545 lhs = {.value = newValue, .ptr = newPtr};
695 545 break;
696 }
697 − default: // GCOV_EXCL_LINE
698 − throw CompilerError(UNHANDLED_BRANCH, "PrefixUnaryExpr fall-through"); // GCOV_EXCL_LINE
699 }
700
701
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 5747 return lhs;
702 }
703
704 56228 std::any IRGenerator::visitPostfixUnaryExpr(const PostfixUnaryExprNode *node) {
705
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 56228 diGenerator.setSourceLocation(node);
706
707 // If no operator is applied, simply visit the atomic expression
708
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 56228 if (node->op == PostfixUnaryExprNode::PostfixUnaryOp::OP_NONE)
709 ✗ return visit(node->atomicExpr);
710
711 // Evaluate lhs
712 56228 const ExprNode *lhsNode = node->postfixUnaryExpr;
713
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 56228 QualType lhsSTy = lhsNode->getEvaluatedSymbolType(manIdx);
714
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 56228 auto lhs = std::any_cast<LLVMExprResult>(visit(lhsNode));
715
716
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 56228 switch (node->op) {
717 6070 case PostfixUnaryExprNode::PostfixUnaryOp::OP_SUBSCRIPT: {
718 6070 const ExprNode *indexExpr = node->subscriptIndexExpr;
719
720 // Check if we need to generate a call to an overloaded operator function
721
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 6070 if (conversionManager.callsOverloadedOpFct(node, 0)) {
722
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 336 ResolverFct lhsV = [&] { return resolveValue(lhsSTy, lhs); };
723 672 ResolverFct lhsP = [&] { return resolveAddress(lhs); };
724 649 ResolverFct idxV = [&] { return resolveValue(indexExpr); };
725 359 ResolverFct idxP = [&] { return resolveAddress(indexExpr); };
726 336 lhs = conversionManager.callOperatorOverloadFct<2>(node, {lhsV, lhsP, idxV, idxP}, 0);
727 336 break;
728 336 }
729
730
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 5734 lhsSTy = lhsSTy.removeReferenceWrapper();
731
732 // Get the index value
733
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 5734 llvm::Value *indexValue = resolveValue(indexExpr);
734 // Come up with the address
735
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 5734 if (lhsSTy.isArray() && lhsSTy.getArraySize() != ARRAY_SIZE_UNKNOWN) { // Array
736 // Make sure the address is present
737
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 177 resolveAddress(lhs);
738
739 // Calculate address of array item
740
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 177 llvm::Type *lhsTy = lhsSTy.toLLVMType(sourceFile);
741
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 177 llvm::Value *indices[2] = {builder.getInt64(0), indexValue};
742
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 177 lhs.ptr = insertInBoundsGEP(lhsTy, lhs.ptr, indices);
743 } else { // Pointer
744 // Now the pointer is the value
745
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 5557 lhs.ptr = resolveValue(lhsNode, lhs);
746
747
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 5557 llvm::Type *lhsTy = lhsSTy.getContained().toLLVMType(sourceFile);
748 // Calculate address of pointer item
749
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 5557 lhs.ptr = insertInBoundsGEP(lhsTy, lhs.ptr, indexValue);
750 }
751
752 // Reset value and entry
753 5734 lhs.value = nullptr;
754 5734 lhs.entry = nullptr;
755 5734 break;
756 }
757 45586 case PostfixUnaryExprNode::PostfixUnaryOp::OP_MEMBER_ACCESS: {
758 // Get the address of the struct instance
759
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 45586 resolveAddress(lhs);
760
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 45586 lhsSTy = lhsSTy.removeReferenceWrapper();
761
762 // Auto de-reference pointer
763
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 45586 autoDeReferencePtr(lhs.ptr, lhsSTy);
764
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 45586 assert(lhsSTy.is(TY_STRUCT));
765
766 // Retrieve struct scope
767 45586 const std::string &fieldName = node->identifier;
768
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 45586 Scope *structScope = lhsSTy.getBodyScope();
769
770 // Retrieve field entry
771 45586 std::vector<size_t> indexPath;
772
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 45586 lhs.entry = structScope->symbolTable.lookupInComposedFields(fieldName, indexPath);
773
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 45586 assert(lhs.entry != nullptr);
774
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 45586 const QualType fieldSymbolType = lhs.entry->getQualType();
775
776 // Get address of the field in the struct instance
777
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 91172 std::vector<llvm::Value *> indices = {builder.getInt64(0)};
778
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 136804 for (const size_t index : indexPath)
779
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 45632 indices.push_back(builder.getInt32(index));
780
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 45586 const std::string name = fieldName + ".addr";
781
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 45586 llvm::Value *memberAddr = insertInBoundsGEP(lhsSTy.toLLVMType(sourceFile), lhs.ptr, indices, name);
782
783 // Set as ptr or refPtr, depending on the type
784
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 45586 if (fieldSymbolType.isRef()) {
785 1031 lhs.ptr = nullptr;
786 1031 lhs.refPtr = memberAddr;
787 } else {
788 44555 lhs.ptr = memberAddr;
789 44555 lhs.refPtr = nullptr;
790 }
791
792 // Reset the value
793 45586 lhs.value = nullptr;
794 45586 break;
795 45586 }
796 4165 case PostfixUnaryExprNode::PostfixUnaryOp::OP_PLUS_PLUS: {
797 // Make sure a value is present
798
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 4165 resolveValue(lhsNode, lhs);
799
800 // Allocate new local variable if required
801
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 4165 if (!lhs.ptr) {
802
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 2 assert(lhs.value != nullptr);
803
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 2 lhs.ptr = insertAlloca(lhs.value->getType());
804 }
805
806 // Execute operation
807
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 4165 const LLVMExprResult result = conversionManager.getPostfixPlusPlusInst(node, lhs, lhsSTy);
808
809 // Save the new value to the old address
810
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 4165 if (conversionManager.callsOverloadedOpFct(node, 0)) {
811 9 lhs.value = result.value;
812 9 lhs.ptr = result.ptr;
813 } else {
814
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 4156 insertStore(result.value, lhs.ptr, lhs.entry && lhs.entry->isVolatile);
815 4156 lhs.ptr = nullptr;
816 }
817 4165 break;
818 }
819 407 case PostfixUnaryExprNode::PostfixUnaryOp::OP_MINUS_MINUS: {
820 // Make sure a value is present
821
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 407 resolveValue(lhsNode, lhs);
822
823 // Allocate new local variable if required
824
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 407 if (!lhs.ptr) {
825
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 2 assert(lhs.value != nullptr);
826
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 2 lhs.ptr = insertAlloca(lhs.value->getType());
827 }
828
829 // Execute operation
830
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 407 const LLVMExprResult result = conversionManager.getPostfixMinusMinusInst(node, lhs, lhsSTy);
831
832 // Save the new value to the old address
833
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 407 if (conversionManager.callsOverloadedOpFct(node, 0)) {
834 7 lhs.value = result.value;
835 7 lhs.ptr = result.ptr;
836 } else {
837
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 400 insertStore(result.value, lhs.ptr, lhs.entry && lhs.entry->isVolatile);
838 400 lhs.ptr = nullptr;
839 }
840 407 break;
841 }
842 − default: // GCOV_EXCL_LINE
843 − throw CompilerError(UNHANDLED_BRANCH, "PostfixUnaryExpr fall-through"); // GCOV_EXCL_LINE
844 }
845
846
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 56228 return lhs;
847
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 336 }
848
849 234820 std::any IRGenerator::visitAtomicExpr(const AtomicExprNode *node) {
850
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 234820 diGenerator.setSourceLocation(node);
851
852 // If constant
853
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 234820 if (node->constant) {
854
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 38368 const auto constantValue = std::any_cast<llvm::Constant *>(visit(node->constant));
855
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 76736 return LLVMExprResult{.constant = constantValue};
856 }
857
858 // If value
859
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 196452 if (node->value)
860
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 59457 return visit(node->value);
861
862 // Is assign expression
863
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 136995 if (node->assignExpr)
864
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 1067 return visit(node->assignExpr);
865
866 // Identifier (local or global variable access)
867
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 135928 assert(!node->identifierFragments.empty());
868
869 // Get symbol table entry
870
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 135928 const auto &[entry, accessScope, capture] = node->data.at(manIdx);
871
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 135928 assert(entry != nullptr);
872
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 135928 assert(accessScope != nullptr);
873
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 135928 const QualType varSymbolType = entry->getQualType();
874
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 135928 llvm::Type *varType = varSymbolType.toLLVMType(sourceFile);
875
876 // Check if external global variable
877
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 135928 if (entry->global && accessScope->isImportedBy(rootScope)) {
878 // External global variables need to be declared and allocated in the current module
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 249 llvm::Value *varAddress = module->getOrInsertGlobal(entry->name, varType);
880
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 249 entry->updateAddress(varAddress);
881 }
882
883 // Check if enum item
884
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 135928 if (accessScope->type == ScopeType::ENUM) {
885
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 3739 const auto itemNode = spice_pointer_cast<const EnumItemNode *>(entry->declNode);
886
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 3739 llvm::Constant *constantItemValue = llvm::ConstantInt::get(varType, itemNode->itemValue);
887
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 7478 return LLVMExprResult{.constant = constantItemValue, .entry = entry};
888 }
889
890
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 132189 llvm::Value *address = entry->getAddress();
891
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 132189 assert(address != nullptr);
892
893 // If this is a function/procedure reference, return it as value
894
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 132189 if (entry->global && varSymbolType.isOneOf({TY_FUNCTION, TY_PROCEDURE})) {
895
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 15 llvm::Value *fatPtr = buildFatFctPtr(nullptr, nullptr, address);
896
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 30 return LLVMExprResult{.ptr = fatPtr, .entry = entry};
897 }
898
899 // Load the address of the referenced variable
900
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 132174 if (varSymbolType.isRef() || (capture && capture->getMode() == BY_REFERENCE))
901
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 26802 return LLVMExprResult{.refPtr = address, .entry = entry};
902
903
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 237546 return LLVMExprResult{.ptr = address, .entry = entry};
904 }
905
906 } // namespace spice::compiler
907