CarGDev/bits-runner-builder
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Implemented loops

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This commit is contained in:
Rafał Grodziński
2025-06-26 15:50:18 +09:00
parent ac9205e23e
commit 293522315b
4 changed files with 58 additions and 32 deletions
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36
src/Compiler/ModuleBuilder.cpp
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@@ -127,25 +127,45 @@ void ModuleBuilder::buildReturn(shared_ptr<StatementReturn> statement) {
void ModuleBuilder::buildLoop(shared_ptr<StatementLoop> statement) {
shared_ptr<Statement> initStatement = statement->getInitStatement();
shared_ptr<StatementBlock> bodyStatement= statement->getBodyBlockStatement();
shared_ptr<Expression> preExpression = statement->getPreConditionExpression();
shared_ptr<Expression> postExpression = statement->getPostConditionExpression();
shared_ptr<StatementBlock> bodyStatement= statement->getBodyBlockStatement();
llvm::BasicBlock *parentBlock = builder->GetInsertBlock();
llvm::Function *fun = builder->GetInsertBlock()->getParent();
llvm::BasicBlock *preBlock = llvm::BasicBlock::Create(*context, "loopPre", fun);
llvm::BasicBlock *bodyBlock = llvm::BasicBlock::Create(*context, "loopBody");
llvm::BasicBlock *afterBlock = llvm::BasicBlock::Create(*context, "loopPost");
// loop init
if (initStatement != nullptr)
buildStatement(statement->getInitStatement());
llvm::Function *fun = builder->GetInsertBlock()->getParent();
builder->CreateBr(preBlock);
llvm::BasicBlock *bodyBlock = llvm::BasicBlock::Create(*context, "loopBody", fun);
// pre condition
builder->SetInsertPoint(preBlock);
if (preExpression != nullptr) {
llvm::Value *preConditionValue = valueForExpression(preExpression);
builder->CreateCondBr(preConditionValue, bodyBlock, afterBlock);
} else {
builder->CreateBr(bodyBlock);
}
// body
fun->insert(fun->end(), bodyBlock);
builder->SetInsertPoint(bodyBlock);
buildBlock(bodyStatement);
builder->CreateBr(bodyBlock);
//llvm::BasicBlock *loopEndBlock = builder->GetInsertBlock()
// post condition
if (postExpression != nullptr) {
llvm::Value *postConditionValue = valueForExpression(postExpression);
builder->CreateCondBr(postConditionValue, preBlock, afterBlock);
} else {
builder->CreateBr(preBlock);
}
builder->SetInsertPoint(parentBlock);
// loop post
fun->insert(fun->end(), afterBlock);
builder->SetInsertPoint(afterBlock);
}
void ModuleBuilder::buildMetaExternFunction(shared_ptr<StatementMetaExternFunction> statement) {