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Now supports function calling

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Pasha Bibko
2025-05-11 15:17:07 +01:00
parent c47889a4ff
commit 2a47fd1756
9 changed files with 206 additions and 44 deletions
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66
Parser/src/GenIR.cpp
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@@ -30,36 +30,52 @@ namespace LX
// Generates the LLVM IR for the given function //
static void GenerateFunctionIR(FunctionDefinition& funcAST, InfoLLVM& LLVM)
{
// Creates the functions signature and return type //
std::cout << funcAST.params.size() << std::endl;
std::vector<llvm::Type*> funcParams(funcAST.params.size(), LLVM.builder.getInt32Ty());
llvm::FunctionType* retType = llvm::FunctionType::get(llvm::Type::getInt32Ty(LLVM.context), funcParams, false); // <- Defaults to int currently
llvm::Function* func = llvm::Function::Create(retType, GetLinkageType(funcAST.name), funcAST.name, LLVM.module);
llvm::BasicBlock* entry = llvm::BasicBlock::Create(LLVM.context, funcAST.name + "-entry", func);
LLVM.builder.SetInsertPoint(entry);
// Creates the storer of the variables/parameters //
FunctionScope funcScope(funcAST.params, func);
// Generates the IR within the function by looping over the nodes //
for (auto& node : funcAST.body)
try
{
ThrowIf<IRGenerationError>(IsValidTopLevelNode(node->m_Type) == false); // <- TODO: replace with actual error type
node->GenIR(LLVM, funcScope);
Log::LogNewSection("Generating ", funcAST.name, " LLVM IR");
// Creates the functions signature and return type //
std::vector<llvm::Type*> funcParams(funcAST.params.size(), LLVM.builder.getInt32Ty());
llvm::FunctionType* retType = llvm::FunctionType::get(llvm::Type::getInt32Ty(LLVM.context), funcParams, false); // <- Defaults to int currently
llvm::Function* func = llvm::Function::Create(retType, GetLinkageType(funcAST.name), funcAST.name, LLVM.module);
llvm::BasicBlock* entry = llvm::BasicBlock::Create(LLVM.context, funcAST.name + "-entry", func);
LLVM.builder.SetInsertPoint(entry);
// Stores the function for other functions to call it //
LLVM.functions[funcAST.name] = func;
// Creates the storer of the variables/parameters //
FunctionScope funcScope(funcAST.params, func);
// Generates the IR within the function by looping over the nodes //
for (auto& node : funcAST.body)
{
ThrowIf<IRGenerationError>(IsValidTopLevelNode(node->m_Type) == false); // <- TODO: replace with actual error type
Log::out<Log::Priority::HIGH>("Generating: ", node->TypeName());
node->GenIR(LLVM, funcScope);
}
// Adds a terminator if there is none //
if (entry->getTerminator() == nullptr)
{
LLVM.builder.CreateRet(llvm::ConstantInt::get(llvm::Type::getInt32Ty(LLVM.context), 0, true));
}
// Verifies the function works //
ThrowIf<IRGenerationError>(llvm::verifyFunction(*func, &llvm::errs())); // <- TODO: Make error type
}
// Adds a terminator if there is none //
if (entry->getTerminator() == nullptr)
catch (...)
{
LLVM.builder.CreateRet(llvm::ConstantInt::get(llvm::Type::getInt32Ty(LLVM.context), 0, true));
__debugbreak();
throw;
}
// Verifies the function works //
ThrowIf<IRGenerationError>(llvm::verifyFunction(*func)); // <- TODO: Make error type
}
// Turns an abstract binary tree into LLVM intermediate representation //