diff options
Diffstat (limited to 'asm/intel64/encode.cpp')
| -rw-r--r-- | asm/intel64/encode.cpp | 168 |
1 files changed, 114 insertions, 54 deletions
diff --git a/asm/intel64/encode.cpp b/asm/intel64/encode.cpp index 681e407..0806b56 100644 --- a/asm/intel64/encode.cpp +++ b/asm/intel64/encode.cpp @@ -8,6 +8,113 @@ #include <exception> +namespace { + +std::shared_ptr<Op> makeLoadValue(FlowGraph::Data& data) +{ + if (data.type() != FlowGraph::DataType::Int) { + std::runtime_error("Bad type for operand: "s + std::to_string(int(data.type()))); + } + + if (!data.storage()) + throw std::runtime_error("ICE: Operand storage is 0"); + + auto& data_storage{*data.storage()}; + if (typeid(data_storage) == typeid(FlowGraph::Constant)) { + FlowGraph::Constant& value {dynamic_cast<FlowGraph::Constant&>(data_storage)}; + if (value.value().size() < sizeof(uint32_t)) + throw std::runtime_error("ICE: Int data from operand needs at least 4 bytes, got "s + std::to_string(value.value().size())); + + uint32_t immediate = from_little_endian(value.value()); + + return makeOp("mov", Asm::Args{{Asm::Args::Register32("eax"), Asm::Args::Immediate32(immediate)}}); + } else if (typeid(data_storage) == typeid(FlowGraph::TemporaryStorage)) { + FlowGraph::TemporaryStorage& storage {dynamic_cast<FlowGraph::TemporaryStorage&>(data_storage)}; + + index_t index { storage.indexOfStorage()}; + return makeOp("mov", Asm::Args{{Asm::Args::Register32("eax"), Asm::Args::Mem32Ptr64("rbp", int32_t(index) * -4)}}); + } else + throw std::runtime_error("ICE: Unsupported type for operand data at load: "s + demangle(typeid(data_storage))); +} + +std::shared_ptr<Op> makeStoreValue(FlowGraph::Data& data) +{ + if (data.type() != FlowGraph::DataType::Int) { + std::runtime_error("Bad type for operand: "s + std::to_string(int(data.type()))); + } + + if (!data.storage()) + throw std::runtime_error("ICE: Operand storage is 0"); + + auto& data_storage{*data.storage()}; + if (typeid(data_storage) == typeid(FlowGraph::TemporaryStorage)) { + FlowGraph::TemporaryStorage& storage {dynamic_cast<FlowGraph::TemporaryStorage&>(data_storage)}; + + index_t index { storage.indexOfStorage()}; + return makeOp("mov", Asm::Args{{Asm::Args::Mem32Ptr64("rbp", int32_t(index) * -4), Asm::Args::Register32("eax")}}); + } else + throw std::runtime_error("ICE: Unsupported type for operand data at store: "s + demangle(typeid(data_storage))); +} + +std::shared_ptr<Op> makeAddValue(FlowGraph::Data& data) +{ + if (data.type() != FlowGraph::DataType::Int) { + std::runtime_error("Bad type for operand: "s + std::to_string(int(data.type()))); + } + + if (!data.storage()) + throw std::runtime_error("ICE: Operand storage is 0"); + + auto& data_storage{*data.storage()}; + if (typeid(data_storage) == typeid(FlowGraph::Constant)) { + FlowGraph::Constant& value {dynamic_cast<FlowGraph::Constant&>(data_storage)}; + if (value.value().size() < sizeof(uint32_t)) + throw std::runtime_error("ICE: Int data from operand needs at least 4 bytes, got "s + std::to_string(value.value().size())); + + uint32_t immediate = from_little_endian(value.value()); + + return makeOp("add", Asm::Args{{Asm::Args::Register32("eax"), Asm::Args::Immediate32(immediate)}}); + } else if (typeid(data_storage) == typeid(FlowGraph::TemporaryStorage)) { + FlowGraph::TemporaryStorage& storage {dynamic_cast<FlowGraph::TemporaryStorage&>(data_storage)}; + + index_t index { storage.indexOfStorage()}; + return makeOp("add", Asm::Args{{Asm::Args::Register32("eax"), Asm::Args::Mem32Ptr64("rbp", int32_t(index) * -4)}}); + } else + throw std::runtime_error("ICE: Unsupported type for operand data at add: "s + demangle(typeid(data_storage))); +} + +std::vector<std::shared_ptr<Chunk>> makeMulValue(FlowGraph::Data& data) +{ + if (data.type() != FlowGraph::DataType::Int) { + std::runtime_error("Bad type for operand: "s + std::to_string(int(data.type()))); + } + + if (!data.storage()) + throw std::runtime_error("ICE: Operand storage is 0"); + + auto& data_storage{*data.storage()}; + if (typeid(data_storage) == typeid(FlowGraph::Constant)) { + FlowGraph::Constant& value {dynamic_cast<FlowGraph::Constant&>(data_storage)}; + if (value.value().size() < sizeof(uint32_t)) + throw std::runtime_error("ICE: Int data from operand needs at least 4 bytes, got "s + std::to_string(value.value().size())); + + uint32_t immediate = from_little_endian(value.value()); + + return {{ + makeOp("mov", Asm::Args{{Asm::Args::Register32("ebx"), Asm::Args::Immediate32(immediate)}}), + makeOp("mul", Asm::Args{{Asm::Args::Register32("ebx")}}) + }}; + } else if (typeid(data_storage) == typeid(FlowGraph::TemporaryStorage)) { + FlowGraph::TemporaryStorage& storage {dynamic_cast<FlowGraph::TemporaryStorage&>(data_storage)}; + + index_t index { storage.indexOfStorage()}; + return {{makeOp("mul", Asm::Args{{Asm::Args::Mem32Ptr64("rbp", int32_t(index) * -4)}})}}; + } else + throw std::runtime_error("ICE: Unsupported type for operand data at mul: "s + demangle(typeid(data_storage))); +} + +} // namespace + void Asm::toMachineCode(const FlowGraph::Graph& graph, Segment& segment) { segment.clear(); @@ -48,61 +155,14 @@ void Asm::toMachineCode(const FlowGraph::Graph& graph, Segment& segment) auto operands {op.operands()}; -#if 0 - if (op.type() == FlowGraph::BinaryOperationType::Add) { - segment.push_back(loadmakeOp("add", Asm::Args{{Asm::Args::Register32("eax"), Asm::Args::Immediate32(immediate2)}})); - } else if (op.type() == FlowGraph::BinaryOperationType::Multiply) { - segment.push_back(makeOp("mov", Asm::Args{{Asm::Args::Register32("ebx"), Asm::Args::Immediate32(immediate2)}})); - segment.push_back(makeOp("mul", Asm::Args{{Asm::Args::Register32("ebx")}})); - } else - throw std::runtime_error("ICE: Asm: Unsupported binary operation type: "s + std::to_string(static_cast<int>(op.type()))); -#endif - - - - - if (operands[1].type() != FlowGraph::DataType::Int) { - std::runtime_error("Bad type for operand 1: "s + std::to_string(int(operands[1].type()))); - } - - if (operands[2].type() != FlowGraph::DataType::Int) { - std::runtime_error("Bad type for operand 2: "s + std::to_string(int(operands[2].type()))); - } - - if (!operands[1].storage()) - throw std::runtime_error("ICE: Operand 1 storage is 0"); - if (!operands[2].storage()) - throw std::runtime_error("ICE: Operand 2 storage is 0"); - - uint32_t immediate1{}; - try { - FlowGraph::Constant& value1 {dynamic_cast<FlowGraph::Constant&>(*operands[1].storage())}; - if (value1.value().size() < sizeof(uint32_t)) - throw std::runtime_error("ICE: Int data from operand 1 needs at least 4 bytes, got "s + std::to_string(value1.value().size())); - - immediate1 = boost::endian::little_to_native(*(reinterpret_cast<const uint32_t*>(value1.value().data()))); - } catch (const std::bad_cast& ex) { - std::runtime_error("Bad value for operand 1: Constant expected"); - } - - uint32_t immediate2{}; - try { - FlowGraph::Constant& value2 {dynamic_cast<FlowGraph::Constant&>(*operands[2].storage())}; - if (value2.value().size() < sizeof(uint32_t)) - throw std::runtime_error("ICE: Int data from operand 2 needs at least 4 bytes, got "s + std::to_string(value2.value().size())); - - immediate2 = boost::endian::little_to_native(*(reinterpret_cast<const uint32_t*>(value2.value().data()))); - } catch (const std::bad_cast& ex) { - std::runtime_error("Bad value for operand 2: Constant expected"); - } - - segment.push_back(makeOp("mov", Asm::Args{{Asm::Args::Register32("eax"), Asm::Args::Immediate32(immediate1)}})); - if (op.type() == FlowGraph::BinaryOperationType::Add) { - segment.push_back(makeOp("add", Asm::Args{{Asm::Args::Register32("eax"), Asm::Args::Immediate32(immediate2)}})); + segment.push_back(makeLoadValue(operands[1])); + segment.push_back(makeAddValue(operands[2])); + segment.push_back(makeStoreValue(operands[0])); } else if (op.type() == FlowGraph::BinaryOperationType::Multiply) { - segment.push_back(makeOp("mov", Asm::Args{{Asm::Args::Register32("ebx"), Asm::Args::Immediate32(immediate2)}})); - segment.push_back(makeOp("mul", Asm::Args{{Asm::Args::Register32("ebx")}})); + segment.push_back(makeLoadValue(operands[1])); + segment.append(makeMulValue(operands[2])); + segment.push_back(makeStoreValue(operands[0])); } else throw std::runtime_error("ICE: Asm: Unsupported binary operation type: "s + std::to_string(static_cast<int>(op.type()))); @@ -115,7 +175,7 @@ void Asm::toMachineCode(const FlowGraph::Graph& graph, Segment& segment) //FlowGraph::DestroyScopeOp& op {dynamic_cast<FlowGraph::DestroyScopeOp&>(*node)}; segment.push_back(makeOp("pop", Asm::Args{{Asm::Args::Register64("rbp")}})); - // Move eax for exit() via rdi + // Move eax (still present from last operation) for exit() via rdi segment.push_back(makeOp("xor", Asm::Args{{Asm::Args::Register64("rdi"), Asm::Args::Register64("rdi")}})); segment.push_back(makeOp("mov", Asm::Args{{Asm::Args::Register32("edi"), Asm::Args::Register32("eax")}})); } else if (typeid(node_deref) == typeid(FlowGraph::DataNode)) { |