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#include <llvm/ADT/APFloat.h>
#include <llvm/ADT/APInt.h>
#include "Driver.hh"
#include "LiteralNode.hh"
namespace pcc {
template <> Value BooleanLiteralNode::CodeGen() {
if (value_ == true) {
return llvm::ConstantInt::getTrue(GlobalLLVMContext);
} else {
return llvm::ConstantInt::getFalse(GlobalLLVMContext);
}
}
template <> Value CharLiteralNode::CodeGen() {
return llvm::ConstantInt::get(type_->GetLLVMType(), value_, true);
}
template <> Value IntegerLiteralNode::CodeGen() {
return llvm::ConstantInt::get(type_->GetLLVMType(), value_, true);
}
template <> Value RealLiteralNode::CodeGen() {
llvm::APFloat value(value_);
return llvm::ConstantFP::get(GlobalLLVMContext, value);
}
StringLiteralNode::StringLiteralNode(Context* context,
std::shared_ptr<Type> type,
std::vector<char> value)
: ExprNode(context)
, value_(value) {
type_ = type;
}
Value StringLiteralNode::CodeGen() {
llvm::IRBuilder<>* builder = context_->GetBuilder();
std::shared_ptr<PointerType> pointer =
std::static_pointer_cast<PointerType>(type_);
llvm::Constant* ConstantString =
llvm::ConstantDataArray::get(GlobalLLVMContext, value_);
llvm::GlobalValue* GlobalString = new llvm::GlobalVariable(
*context_->GetModule(), ConstantString->getType(), true,
llvm::GlobalValue::PrivateLinkage, ConstantString);
GlobalString->setUnnamedAddr(llvm::GlobalValue::UnnamedAddr::Global);
Value ZeroIndex =
llvm::ConstantInt::get(pointer->GetIndexType()->GetLLVMType(), 0, true);
Value indices[2] = {ZeroIndex, ZeroIndex};
return builder->CreateInBoundsGEP(GlobalString, indices);
}
} // namespace pcc
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