optimize for compile time
This commit is contained in:
@ -121,368 +121,16 @@ void GenerateOptASM(std::ostream &os, std::shared_ptr<ModuleItem> prog);
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extern std::string cur_block_label_for_phi;
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inline std::string AllocateTmpReg(std::vector<std::string> &available_tmp_regs) {
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if (available_tmp_regs.size() == 0) throw std::runtime_error("No available tmp register");
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std::string res;
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res = available_tmp_regs.back();
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available_tmp_regs.pop_back();
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return res;
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}
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std::string AllocateTmpReg(std::vector<std::string> &available_tmp_regs);
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inline std::string ExtractRegName(const std::string &raw) {
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if (raw[0] != '$') throw std::runtime_error("Not a register");
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size_t reg_id = std::stoull(raw.substr(5));
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return "x" + std::to_string(reg_id);
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}
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std::string ExtractRegName(const std::string &raw);
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inline void FetchValueToReg(std::string original_val, std::string &out_reg, FuncLayout &layout,
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std::vector<std::string> &code_lines, std::vector<std::string> &available_tmp_regs) {
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if (original_val[0] == '$') {
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// already assigned to a register, such as `$reg.10`
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out_reg = ExtractRegName(original_val);
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} else if (original_val[0] == '#') {
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// spilled variable, we need find it in the layout
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size_t offset = layout.QueryOffeset(original_val);
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out_reg = AllocateTmpReg(available_tmp_regs);
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if (offset < 2048) {
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code_lines.push_back("lw " + out_reg + ", -" + std::to_string(offset) + "(s0)");
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} else {
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code_lines.push_back("li " + out_reg + ", -" + std::to_string(offset));
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code_lines.push_back("add " + out_reg + ", s0, " + out_reg);
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code_lines.push_back("lw " + out_reg + ", 0(" + out_reg + ")");
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}
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} else if (original_val[0] == '@') {
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// global variable address keeper
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out_reg = AllocateTmpReg(available_tmp_regs);
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std::string label_in_asm = original_val.substr(1, original_val.size() - 1);
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code_lines.push_back("la " + out_reg + ", " + label_in_asm);
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} else if (original_val[0] == '-' || std::isdigit(original_val[0])) {
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// immediate value
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out_reg = AllocateTmpReg(available_tmp_regs);
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StoreImmToReg(std::stoi(original_val), out_reg, code_lines);
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} else if (original_val == "null") {
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out_reg = "x0";
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} else {
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throw std::runtime_error("Unknown value type");
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}
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}
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void FetchValueToReg(std::string original_val, std::string &out_reg, FuncLayout &layout,
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std::vector<std::string> &code_lines, std::vector<std::string> &available_tmp_regs);
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inline void WriteToSpilledVar(std::string val, std::string reg, FuncLayout &layout,
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std::vector<std::string> &code_lines, std::vector<std::string> &available_tmp_regs) {
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if (val[0] != '#') throw std::runtime_error("Not a spilled variable");
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size_t offset = layout.QueryOffeset(val);
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if (offset < 2048) {
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code_lines.push_back("sw " + reg + ", -" + std::to_string(offset) + "(s0)");
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} else {
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std::string tmp_reg = AllocateTmpReg(available_tmp_regs);
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code_lines.push_back("li " + tmp_reg + ", -" + std::to_string(offset));
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code_lines.push_back("add " + tmp_reg + ", s0, " + tmp_reg);
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code_lines.push_back("sw " + reg + ", 0(" + tmp_reg + ")");
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}
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}
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inline size_t CalcSize(const LLVMType &tp) {
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if (std::holds_alternative<LLVMIRIntType>(tp)) {
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auto &int_tp = std::get<LLVMIRIntType>(tp);
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return (int_tp.bits + 7) / 8;
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} else if (std::holds_alternative<LLVMIRPTRType>(tp)) {
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return 4;
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} else if (std::holds_alternative<LLVMVOIDType>(tp)) {
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throw std::runtime_error("Cannot calculate size of void type");
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return 0;
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} else if (std::holds_alternative<LLVMIRCLASSTYPE>(tp)) {
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throw std::runtime_error("Cannot calculate size of class type");
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} else
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throw std::runtime_error("Unknown type");
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}
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inline void GenerateASM(std::shared_ptr<ActionItem> act, std::vector<std::string> &code_lines, FuncLayout &layout,
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const std::unordered_map<std::string, IRClassInfo> &low_level_class_info) {
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std::vector<std::string> available_tmp_regs = held_tmp_regs;
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if (auto br_act = std::dynamic_pointer_cast<BRAction>(act)) {
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std::string cond_reg;
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FetchValueToReg(br_act->cond, cond_reg, layout, code_lines, available_tmp_regs);
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code_lines.push_back("bnez " + cond_reg + ", .entrylabel." + br_act->true_label_full);
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code_lines.push_back("j .entrylabel." + br_act->false_label_full);
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} else if (auto jmp_act = std::dynamic_pointer_cast<UNConditionJMPAction>(act)) {
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code_lines.push_back("j .entrylabel." + jmp_act->label_full);
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} else if (auto ret_act = std::dynamic_pointer_cast<RETAction>(act)) {
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code_lines.push_back("lw ra, -4(s0)");
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code_lines.push_back("lw sp, -12(s0)");
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code_lines.push_back("lw s0, -8(s0)");
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code_lines.push_back("ret");
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} else if (auto binary_act = std::dynamic_pointer_cast<BinaryOperationAction>(act)) {
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// size_t sz = CalcSize(binary_act->type);
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// IRVar2RISCVReg(binary_act->operand1_full, sz, "t0", layout, code_lines);
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// IRVar2RISCVReg(binary_act->operand2_full, sz, "t1", layout, code_lines);
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std::string operand1_reg, operand2_reg;
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FetchValueToReg(binary_act->operand1_full, operand1_reg, layout, code_lines, available_tmp_regs);
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FetchValueToReg(binary_act->operand2_full, operand2_reg, layout, code_lines, available_tmp_regs);
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std::string res_reg;
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bool need_extra_store = false;
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if (binary_act->result_full[0] == '$') {
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res_reg = ExtractRegName(binary_act->result_full);
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} else if (binary_act->result_full[0] == '#') {
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need_extra_store = true;
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res_reg = AllocateTmpReg(available_tmp_regs);
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} else {
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throw std::runtime_error("Unknown result type");
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}
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if (binary_act->op == "add") {
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code_lines.push_back("add " + res_reg + ", " + operand1_reg + ", " + operand2_reg);
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} else if (binary_act->op == "sub") {
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code_lines.push_back("sub " + res_reg + ", " + operand1_reg + ", " + operand2_reg);
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} else if (binary_act->op == "mul") {
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code_lines.push_back("mul " + res_reg + ", " + operand1_reg + ", " + operand2_reg);
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} else if (binary_act->op == "sdiv") {
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code_lines.push_back("div " + res_reg + ", " + operand1_reg + ", " + operand2_reg);
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} else if (binary_act->op == "srem") {
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code_lines.push_back("rem " + res_reg + ", " + operand1_reg + ", " + operand2_reg);
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} else if (binary_act->op == "and") {
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code_lines.push_back("and " + res_reg + ", " + operand1_reg + ", " + operand2_reg);
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} else if (binary_act->op == "or") {
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code_lines.push_back("or " + res_reg + ", " + operand1_reg + ", " + operand2_reg);
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} else if (binary_act->op == "xor") {
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code_lines.push_back("xor " + res_reg + ", " + operand1_reg + ", " + operand2_reg);
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} else if (binary_act->op == "shl") {
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code_lines.push_back("sll " + res_reg + ", " + operand1_reg + ", " + operand2_reg);
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} else if (binary_act->op == "ashr") {
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code_lines.push_back("sra " + res_reg + ", " + operand1_reg + ", " + operand2_reg);
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} else {
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throw std::runtime_error("Unknown binary operation");
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}
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if (need_extra_store) {
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WriteToSpilledVar(binary_act->result_full, res_reg, layout, code_lines, available_tmp_regs);
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}
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} else if (auto alloca_act = std::dynamic_pointer_cast<AllocaAction>(act)) {
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std::string res_reg;
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bool need_extra_store = false;
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if (alloca_act->name_full[0] == '#') {
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need_extra_store = true;
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res_reg = AllocateTmpReg(available_tmp_regs);
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} else if (alloca_act->name_full[0] == '$') {
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res_reg = ExtractRegName(alloca_act->name_full);
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} else {
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throw std::runtime_error("Unknown result type");
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}
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size_t sz = CalcSize(alloca_act->type) * alloca_act->num;
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sz = (sz + 15) / 16 * 16;
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code_lines.push_back("addi sp, sp, -" + std::to_string(sz));
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if (!need_extra_store) {
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code_lines.push_back("mv " + res_reg + ", sp");
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} else {
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WriteToSpilledVar(alloca_act->name_full, "sp", layout, code_lines, available_tmp_regs);
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}
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} else if (auto load_act = std::dynamic_pointer_cast<LoadAction>(act)) {
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std::string res_reg;
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bool need_extra_store = false;
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if (load_act->result_full[0] == '#') {
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need_extra_store = true;
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res_reg = AllocateTmpReg(available_tmp_regs);
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} else if (load_act->result_full[0] == '$') {
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res_reg = ExtractRegName(load_act->result_full);
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} else {
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throw std::runtime_error("Unknown result type");
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}
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std::string ptr_reg;
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FetchValueToReg(load_act->ptr_full, ptr_reg, layout, code_lines, available_tmp_regs);
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if (CalcSize(load_act->ty) == 4) {
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code_lines.push_back("lw " + res_reg + ", 0(" + ptr_reg + ")");
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} else if (CalcSize(load_act->ty) == 1) {
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code_lines.push_back("lb " + res_reg + ", 0(" + ptr_reg + ")");
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} else {
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throw std::runtime_error("Unknown bytes");
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}
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if (need_extra_store) {
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WriteToSpilledVar(load_act->result_full, res_reg, layout, code_lines, available_tmp_regs);
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}
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} else if (auto store_act = std::dynamic_pointer_cast<StoreAction>(act)) {
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std::string val_reg;
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std::string ptr_reg;
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FetchValueToReg(store_act->value_full, val_reg, layout, code_lines, available_tmp_regs);
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FetchValueToReg(store_act->ptr_full, ptr_reg, layout, code_lines, available_tmp_regs);
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if (CalcSize(store_act->ty) == 4) {
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code_lines.push_back("sw " + val_reg + ", 0(" + ptr_reg + ")");
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} else if (CalcSize(store_act->ty) == 1) {
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code_lines.push_back("sb " + val_reg + ", 0(" + ptr_reg + ")");
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} else {
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throw std::runtime_error("Unknown bytes");
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}
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} else if (auto get_element_act = std::dynamic_pointer_cast<GetElementPtrAction>(act)) {
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if (get_element_act->indices.size() == 1) {
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// array access
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std::string res_reg;
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bool need_extra_store = false;
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if (get_element_act->result_full[0] == '#') {
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need_extra_store = true;
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res_reg = AllocateTmpReg(available_tmp_regs);
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} else if (get_element_act->result_full[0] == '$') {
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res_reg = ExtractRegName(get_element_act->result_full);
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} else {
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throw std::runtime_error("Unknown result type");
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}
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std::string ptr_reg;
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std::string idx_reg;
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FetchValueToReg(get_element_act->ptr_full, ptr_reg, layout, code_lines, available_tmp_regs);
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FetchValueToReg(get_element_act->indices[0], idx_reg, layout, code_lines, available_tmp_regs);
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std::string tmp_reg = AllocateTmpReg(available_tmp_regs);
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size_t element_sz = CalcSize(get_element_act->ty);
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code_lines.push_back("slli " + tmp_reg + ", " + idx_reg + ", " + std::to_string(std::countr_zero(element_sz)));
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code_lines.push_back("add " + res_reg + ", " + ptr_reg + ", " + tmp_reg);
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if (need_extra_store) {
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WriteToSpilledVar(get_element_act->result_full, res_reg, layout, code_lines, available_tmp_regs);
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}
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} else if (get_element_act->indices.size() == 2) {
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// // struct access
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if (get_element_act->indices[0] != "0") {
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throw std::runtime_error("struct access with non-zero offset is not supported");
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}
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size_t element_idx = std::stoull(get_element_act->indices[1]);
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auto class_ty = std::get<LLVMIRCLASSTYPE>(get_element_act->ty);
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const IRClassInfo &class_info = low_level_class_info.at(class_ty.class_name_full);
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size_t offset = class_info.member_var_pos_after_align[element_idx];
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std::string res_reg;
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bool need_extra_store = false;
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if (get_element_act->result_full[0] == '#') {
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need_extra_store = true;
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res_reg = AllocateTmpReg(available_tmp_regs);
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} else if (get_element_act->result_full[0] == '$') {
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res_reg = ExtractRegName(get_element_act->result_full);
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} else {
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throw std::runtime_error("Unknown result type");
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}
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std::string base_ptr_reg;
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FetchValueToReg(get_element_act->ptr_full, base_ptr_reg, layout, code_lines, available_tmp_regs);
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if (offset < 2048) {
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code_lines.push_back("addi " + res_reg + ", " + base_ptr_reg + ", " + std::to_string(offset));
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} else {
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std::string tmp_reg = AllocateTmpReg(available_tmp_regs);
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code_lines.push_back("li " + tmp_reg + ", " + std::to_string(offset));
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code_lines.push_back("add " + res_reg + ", " + base_ptr_reg + ", " + tmp_reg);
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}
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if (need_extra_store) {
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WriteToSpilledVar(get_element_act->result_full, res_reg, layout, code_lines, available_tmp_regs);
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}
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} else {
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throw std::runtime_error("Unknown getelementptr indices size");
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}
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} else if (auto icmp_act = std::dynamic_pointer_cast<ICMPAction>(act)) {
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std::string operand1_reg, operand2_reg;
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FetchValueToReg(icmp_act->operand1_full, operand1_reg, layout, code_lines, available_tmp_regs);
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FetchValueToReg(icmp_act->operand2_full, operand2_reg, layout, code_lines, available_tmp_regs);
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std::string res_reg;
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bool need_extra_store = false;
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if (icmp_act->result_full[0] == '#') {
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need_extra_store = true;
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res_reg = AllocateTmpReg(available_tmp_regs);
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} else if (icmp_act->result_full[0] == '$') {
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res_reg = ExtractRegName(icmp_act->result_full);
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} else {
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throw std::runtime_error("Unknown result type");
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}
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std::string tmp_reg = AllocateTmpReg(available_tmp_regs);
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if (icmp_act->op == "eq") {
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// code_lines.push_back("xor t2, t0, t1");
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// code_lines.push_back("seqz t2, t2");
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code_lines.push_back("xor " + tmp_reg + ", " + operand1_reg + ", " + operand2_reg);
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code_lines.push_back("seqz " + res_reg + ", " + tmp_reg);
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} else if (icmp_act->op == "ne") {
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// code_lines.push_back("xor t2, t0, t1");
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// code_lines.push_back("snez t2, t2");
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code_lines.push_back("xor " + tmp_reg + ", " + operand1_reg + ", " + operand2_reg);
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code_lines.push_back("snez " + res_reg + ", " + tmp_reg);
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} else if (icmp_act->op == "slt") {
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// code_lines.push_back("slt t2, t0, t1");
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code_lines.push_back("slt " + res_reg + ", " + operand1_reg + ", " + operand2_reg);
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} else if (icmp_act->op == "sle") {
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// code_lines.push_back("slt t2, t1, t0");
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// code_lines.push_back("xori t2, t2, 1");
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code_lines.push_back("slt " + res_reg + ", " + operand2_reg + ", " + operand1_reg);
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code_lines.push_back("xori " + res_reg + ", " + res_reg + ", 1");
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} else if (icmp_act->op == "sgt") {
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// code_lines.push_back("slt t2, t1, t0");
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code_lines.push_back("slt " + res_reg + ", " + operand2_reg + ", " + operand1_reg);
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} else if (icmp_act->op == "sge") {
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// code_lines.push_back("slt t2, t0, t1");
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// code_lines.push_back("xori t2, t2, 1");
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code_lines.push_back("slt " + res_reg + ", " + operand1_reg + ", " + operand2_reg);
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code_lines.push_back("xori " + res_reg + ", " + res_reg + ", 1");
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} else {
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throw std::runtime_error("Unknown icmp operation");
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}
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if (need_extra_store) {
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WriteToSpilledVar(icmp_act->result_full, res_reg, layout, code_lines, available_tmp_regs);
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}
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} else if (auto call_act = std::dynamic_pointer_cast<CallItem>(act)) {
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// no need to to further process, as callling convention is handled in reg alloc
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code_lines.push_back("call " + call_act->func_name_raw);
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if (call_act->move_sp_up) {
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size_t delta = 4 * call_act->move_sp_up;
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code_lines.push_back("addi sp, sp, " + std::to_string(delta));
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}
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} else if (auto phi_act = std::dynamic_pointer_cast<PhiItem>(act)) {
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throw std::runtime_error("Phi should not be in the layout");
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} else if (auto select_act = std::dynamic_pointer_cast<SelectItem>(act)) {
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std::string res_reg;
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bool need_extra_store = false;
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if (select_act->result_full[0] == '#') {
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need_extra_store = true;
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res_reg = AllocateTmpReg(available_tmp_regs);
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} else if (select_act->result_full[0] == '$') {
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res_reg = ExtractRegName(select_act->result_full);
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} else {
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throw std::runtime_error("Unknown result type");
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}
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std::string operand1_reg, operand2_reg, cond_reg;
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FetchValueToReg(select_act->cond_full, cond_reg, layout, code_lines, available_tmp_regs);
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FetchValueToReg(select_act->true_val_full, operand1_reg, layout, code_lines, available_tmp_regs);
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FetchValueToReg(select_act->false_val_full, operand2_reg, layout, code_lines, available_tmp_regs);
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std::string tmp1_reg = AllocateTmpReg(available_tmp_regs);
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std::string tmp2_reg = AllocateTmpReg(available_tmp_regs);
|
||||
code_lines.push_back("slli " + tmp1_reg + ", " + cond_reg + ", 31");
|
||||
code_lines.push_back("srai " + tmp1_reg + ", " + tmp1_reg + ", 31");
|
||||
code_lines.push_back("xor " + tmp2_reg + ", " + operand1_reg + ", " + operand2_reg);
|
||||
code_lines.push_back("and " + tmp2_reg + ", " + tmp2_reg + ", " + tmp1_reg);
|
||||
code_lines.push_back("xor " + res_reg + ", " + tmp2_reg + ", " + operand2_reg);
|
||||
if (need_extra_store) {
|
||||
WriteToSpilledVar(select_act->result_full, res_reg, layout, code_lines, available_tmp_regs);
|
||||
}
|
||||
} else if (auto load_spilled_args_act = std::dynamic_pointer_cast<opt::LoadSpilledArgs>(act)) {
|
||||
std::string res_reg;
|
||||
bool need_extra_store = false;
|
||||
if (load_spilled_args_act->var_full[0] == '$') {
|
||||
res_reg = ExtractRegName(load_spilled_args_act->var_full);
|
||||
} else if (load_spilled_args_act->var_full[0] == '#') {
|
||||
need_extra_store = true;
|
||||
res_reg = AllocateTmpReg(available_tmp_regs);
|
||||
} else {
|
||||
throw std::runtime_error("Unknown result type");
|
||||
}
|
||||
size_t offset = 4 * (load_spilled_args_act->arg_id - 8);
|
||||
code_lines.push_back("lw " + res_reg + ", " + std::to_string(offset) + "(s0)");
|
||||
if (need_extra_store) {
|
||||
WriteToSpilledVar(load_spilled_args_act->var_full, res_reg, layout, code_lines, available_tmp_regs);
|
||||
}
|
||||
} else if (auto store_spilled_args_act = std::dynamic_pointer_cast<opt::StoreSpilledArgs>(act)) {
|
||||
if (store_spilled_args_act->move_sp_down) {
|
||||
size_t delta = 4 * store_spilled_args_act->move_sp_down;
|
||||
code_lines.push_back("addi sp, sp, -" + std::to_string(delta));
|
||||
}
|
||||
std::string val_reg;
|
||||
FetchValueToReg(store_spilled_args_act->var_full, val_reg, layout, code_lines, available_tmp_regs);
|
||||
size_t offset = 4 * (store_spilled_args_act->arg_id - 8);
|
||||
code_lines.push_back("sw " + val_reg + ", " + std::to_string(offset) + "(sp)");
|
||||
} else if (auto move_act = std::dynamic_pointer_cast<opt::MoveInstruct>(act)) {
|
||||
std::string src_reg;
|
||||
FetchValueToReg(move_act->src_full, src_reg, layout, code_lines, available_tmp_regs);
|
||||
if (move_act->dest_full[0] == '$') {
|
||||
std::string dest_reg = ExtractRegName(move_act->dest_full);
|
||||
code_lines.push_back("mv " + dest_reg + ", " + src_reg);
|
||||
} else if (move_act->dest_full[0] == '#') {
|
||||
WriteToSpilledVar(move_act->dest_full, src_reg, layout, code_lines, available_tmp_regs);
|
||||
} else {
|
||||
throw std::runtime_error("Unknown dest type");
|
||||
}
|
||||
} else {
|
||||
throw std::runtime_error("Unknown action type");
|
||||
}
|
||||
}
|
||||
void WriteToSpilledVar(std::string val, std::string reg, FuncLayout &layout, std::vector<std::string> &code_lines,
|
||||
std::vector<std::string> &available_tmp_regs);
|
||||
size_t CalcSize(const LLVMType &tp);
|
||||
void GenerateASM(std::shared_ptr<ActionItem> act, std::vector<std::string> &code_lines, FuncLayout &layout,
|
||||
const std::unordered_map<std::string, IRClassInfo> &low_level_class_info);
|
||||
} // namespace OptBackend
|
||||
@ -5,6 +5,18 @@
|
||||
#include <unordered_map>
|
||||
#include <unordered_set>
|
||||
#include "cfg.h"
|
||||
ConfGraph BuildConfGraph(CFGType &cfg);
|
||||
void InitializeBeforeColoring([[maybe_unused]] std::shared_ptr<FunctionDefItem> src, [[maybe_unused]] CFGType &cfg,
|
||||
ConfGraph &confgraph);
|
||||
void DetachNode(ConfGraphNode *node, ConfGraph &confgraph);
|
||||
void JoinNode(ConfGraphNode *node, ConfGraph &confgraph);
|
||||
void MergeNodeInto(ConfGraphNode *node, ConfGraphNode *target, ConfGraph &confgraph);
|
||||
void Simplify(std::shared_ptr<FunctionDefItem> src, CFGType &cfg, ConfGraph &confgraph);
|
||||
void Coalesce(std::shared_ptr<FunctionDefItem> src, CFGType &cfg, ConfGraph &confgraph);
|
||||
void Freeze(std::shared_ptr<FunctionDefItem> src, CFGType &cfg, ConfGraph &confgraph);
|
||||
void PotentailSpill(std::shared_ptr<FunctionDefItem> src, CFGType &cfg, ConfGraph &confgraph);
|
||||
void GraphCheck(ConfGraph &confgraph);
|
||||
bool ConductColoring(std::shared_ptr<FunctionDefItem> src, CFGType &cfg, ConfGraph &confgraph);
|
||||
ConfGraph BuildConfGraph(CFGType &cfg) {
|
||||
std::unordered_map<ConfGraphNode *, std::unordered_set<ConfGraphNode *>> edges;
|
||||
ConfGraph res;
|
||||
|
||||
371
src/opt/gen.cpp
Normal file
371
src/opt/gen.cpp
Normal file
@ -0,0 +1,371 @@
|
||||
#include "gen.h"
|
||||
|
||||
namespace OptBackend {
|
||||
void FetchValueToReg(std::string original_val, std::string &out_reg, FuncLayout &layout,
|
||||
std::vector<std::string> &code_lines, std::vector<std::string> &available_tmp_regs) {
|
||||
if (original_val[0] == '$') {
|
||||
// already assigned to a register, such as `$reg.10`
|
||||
out_reg = ExtractRegName(original_val);
|
||||
} else if (original_val[0] == '#') {
|
||||
// spilled variable, we need find it in the layout
|
||||
size_t offset = layout.QueryOffeset(original_val);
|
||||
out_reg = AllocateTmpReg(available_tmp_regs);
|
||||
if (offset < 2048) {
|
||||
code_lines.push_back("lw " + out_reg + ", -" + std::to_string(offset) + "(s0)");
|
||||
} else {
|
||||
code_lines.push_back("li " + out_reg + ", -" + std::to_string(offset));
|
||||
code_lines.push_back("add " + out_reg + ", s0, " + out_reg);
|
||||
code_lines.push_back("lw " + out_reg + ", 0(" + out_reg + ")");
|
||||
}
|
||||
} else if (original_val[0] == '@') {
|
||||
// global variable address keeper
|
||||
out_reg = AllocateTmpReg(available_tmp_regs);
|
||||
std::string label_in_asm = original_val.substr(1, original_val.size() - 1);
|
||||
code_lines.push_back("la " + out_reg + ", " + label_in_asm);
|
||||
} else if (original_val[0] == '-' || std::isdigit(original_val[0])) {
|
||||
// immediate value
|
||||
out_reg = AllocateTmpReg(available_tmp_regs);
|
||||
StoreImmToReg(std::stoi(original_val), out_reg, code_lines);
|
||||
} else if (original_val == "null") {
|
||||
out_reg = "x0";
|
||||
} else {
|
||||
throw std::runtime_error("Unknown value type");
|
||||
}
|
||||
}
|
||||
|
||||
void WriteToSpilledVar(std::string val, std::string reg, FuncLayout &layout, std::vector<std::string> &code_lines,
|
||||
std::vector<std::string> &available_tmp_regs) {
|
||||
if (val[0] != '#') throw std::runtime_error("Not a spilled variable");
|
||||
size_t offset = layout.QueryOffeset(val);
|
||||
if (offset < 2048) {
|
||||
code_lines.push_back("sw " + reg + ", -" + std::to_string(offset) + "(s0)");
|
||||
} else {
|
||||
std::string tmp_reg = AllocateTmpReg(available_tmp_regs);
|
||||
code_lines.push_back("li " + tmp_reg + ", -" + std::to_string(offset));
|
||||
code_lines.push_back("add " + tmp_reg + ", s0, " + tmp_reg);
|
||||
code_lines.push_back("sw " + reg + ", 0(" + tmp_reg + ")");
|
||||
}
|
||||
}
|
||||
size_t CalcSize(const LLVMType &tp) {
|
||||
if (std::holds_alternative<LLVMIRIntType>(tp)) {
|
||||
auto &int_tp = std::get<LLVMIRIntType>(tp);
|
||||
return (int_tp.bits + 7) / 8;
|
||||
} else if (std::holds_alternative<LLVMIRPTRType>(tp)) {
|
||||
return 4;
|
||||
} else if (std::holds_alternative<LLVMVOIDType>(tp)) {
|
||||
throw std::runtime_error("Cannot calculate size of void type");
|
||||
return 0;
|
||||
} else if (std::holds_alternative<LLVMIRCLASSTYPE>(tp)) {
|
||||
throw std::runtime_error("Cannot calculate size of class type");
|
||||
} else
|
||||
throw std::runtime_error("Unknown type");
|
||||
}
|
||||
|
||||
|
||||
void GenerateASM(std::shared_ptr<ActionItem> act, std::vector<std::string> &code_lines, FuncLayout &layout,
|
||||
const std::unordered_map<std::string, IRClassInfo> &low_level_class_info) {
|
||||
std::vector<std::string> available_tmp_regs = held_tmp_regs;
|
||||
if (auto br_act = std::dynamic_pointer_cast<BRAction>(act)) {
|
||||
std::string cond_reg;
|
||||
FetchValueToReg(br_act->cond, cond_reg, layout, code_lines, available_tmp_regs);
|
||||
code_lines.push_back("bnez " + cond_reg + ", .entrylabel." + br_act->true_label_full);
|
||||
code_lines.push_back("j .entrylabel." + br_act->false_label_full);
|
||||
} else if (auto jmp_act = std::dynamic_pointer_cast<UNConditionJMPAction>(act)) {
|
||||
code_lines.push_back("j .entrylabel." + jmp_act->label_full);
|
||||
} else if (auto ret_act = std::dynamic_pointer_cast<RETAction>(act)) {
|
||||
code_lines.push_back("lw ra, -4(s0)");
|
||||
code_lines.push_back("lw sp, -12(s0)");
|
||||
code_lines.push_back("lw s0, -8(s0)");
|
||||
code_lines.push_back("ret");
|
||||
} else if (auto binary_act = std::dynamic_pointer_cast<BinaryOperationAction>(act)) {
|
||||
// size_t sz = CalcSize(binary_act->type);
|
||||
// IRVar2RISCVReg(binary_act->operand1_full, sz, "t0", layout, code_lines);
|
||||
// IRVar2RISCVReg(binary_act->operand2_full, sz, "t1", layout, code_lines);
|
||||
std::string operand1_reg, operand2_reg;
|
||||
FetchValueToReg(binary_act->operand1_full, operand1_reg, layout, code_lines, available_tmp_regs);
|
||||
FetchValueToReg(binary_act->operand2_full, operand2_reg, layout, code_lines, available_tmp_regs);
|
||||
std::string res_reg;
|
||||
bool need_extra_store = false;
|
||||
if (binary_act->result_full[0] == '$') {
|
||||
res_reg = ExtractRegName(binary_act->result_full);
|
||||
} else if (binary_act->result_full[0] == '#') {
|
||||
need_extra_store = true;
|
||||
res_reg = AllocateTmpReg(available_tmp_regs);
|
||||
} else {
|
||||
throw std::runtime_error("Unknown result type");
|
||||
}
|
||||
if (binary_act->op == "add") {
|
||||
code_lines.push_back("add " + res_reg + ", " + operand1_reg + ", " + operand2_reg);
|
||||
} else if (binary_act->op == "sub") {
|
||||
code_lines.push_back("sub " + res_reg + ", " + operand1_reg + ", " + operand2_reg);
|
||||
} else if (binary_act->op == "mul") {
|
||||
code_lines.push_back("mul " + res_reg + ", " + operand1_reg + ", " + operand2_reg);
|
||||
} else if (binary_act->op == "sdiv") {
|
||||
code_lines.push_back("div " + res_reg + ", " + operand1_reg + ", " + operand2_reg);
|
||||
} else if (binary_act->op == "srem") {
|
||||
code_lines.push_back("rem " + res_reg + ", " + operand1_reg + ", " + operand2_reg);
|
||||
} else if (binary_act->op == "and") {
|
||||
code_lines.push_back("and " + res_reg + ", " + operand1_reg + ", " + operand2_reg);
|
||||
} else if (binary_act->op == "or") {
|
||||
code_lines.push_back("or " + res_reg + ", " + operand1_reg + ", " + operand2_reg);
|
||||
} else if (binary_act->op == "xor") {
|
||||
code_lines.push_back("xor " + res_reg + ", " + operand1_reg + ", " + operand2_reg);
|
||||
} else if (binary_act->op == "shl") {
|
||||
code_lines.push_back("sll " + res_reg + ", " + operand1_reg + ", " + operand2_reg);
|
||||
} else if (binary_act->op == "ashr") {
|
||||
code_lines.push_back("sra " + res_reg + ", " + operand1_reg + ", " + operand2_reg);
|
||||
} else {
|
||||
throw std::runtime_error("Unknown binary operation");
|
||||
}
|
||||
if (need_extra_store) {
|
||||
WriteToSpilledVar(binary_act->result_full, res_reg, layout, code_lines, available_tmp_regs);
|
||||
}
|
||||
} else if (auto alloca_act = std::dynamic_pointer_cast<AllocaAction>(act)) {
|
||||
std::string res_reg;
|
||||
bool need_extra_store = false;
|
||||
if (alloca_act->name_full[0] == '#') {
|
||||
need_extra_store = true;
|
||||
res_reg = AllocateTmpReg(available_tmp_regs);
|
||||
} else if (alloca_act->name_full[0] == '$') {
|
||||
res_reg = ExtractRegName(alloca_act->name_full);
|
||||
} else {
|
||||
throw std::runtime_error("Unknown result type");
|
||||
}
|
||||
size_t sz = CalcSize(alloca_act->type) * alloca_act->num;
|
||||
sz = (sz + 15) / 16 * 16;
|
||||
code_lines.push_back("addi sp, sp, -" + std::to_string(sz));
|
||||
if (!need_extra_store) {
|
||||
code_lines.push_back("mv " + res_reg + ", sp");
|
||||
} else {
|
||||
WriteToSpilledVar(alloca_act->name_full, "sp", layout, code_lines, available_tmp_regs);
|
||||
}
|
||||
} else if (auto load_act = std::dynamic_pointer_cast<LoadAction>(act)) {
|
||||
std::string res_reg;
|
||||
bool need_extra_store = false;
|
||||
if (load_act->result_full[0] == '#') {
|
||||
need_extra_store = true;
|
||||
res_reg = AllocateTmpReg(available_tmp_regs);
|
||||
} else if (load_act->result_full[0] == '$') {
|
||||
res_reg = ExtractRegName(load_act->result_full);
|
||||
} else {
|
||||
throw std::runtime_error("Unknown result type");
|
||||
}
|
||||
std::string ptr_reg;
|
||||
FetchValueToReg(load_act->ptr_full, ptr_reg, layout, code_lines, available_tmp_regs);
|
||||
if (CalcSize(load_act->ty) == 4) {
|
||||
code_lines.push_back("lw " + res_reg + ", 0(" + ptr_reg + ")");
|
||||
} else if (CalcSize(load_act->ty) == 1) {
|
||||
code_lines.push_back("lb " + res_reg + ", 0(" + ptr_reg + ")");
|
||||
} else {
|
||||
throw std::runtime_error("Unknown bytes");
|
||||
}
|
||||
if (need_extra_store) {
|
||||
WriteToSpilledVar(load_act->result_full, res_reg, layout, code_lines, available_tmp_regs);
|
||||
}
|
||||
} else if (auto store_act = std::dynamic_pointer_cast<StoreAction>(act)) {
|
||||
std::string val_reg;
|
||||
std::string ptr_reg;
|
||||
FetchValueToReg(store_act->value_full, val_reg, layout, code_lines, available_tmp_regs);
|
||||
FetchValueToReg(store_act->ptr_full, ptr_reg, layout, code_lines, available_tmp_regs);
|
||||
if (CalcSize(store_act->ty) == 4) {
|
||||
code_lines.push_back("sw " + val_reg + ", 0(" + ptr_reg + ")");
|
||||
} else if (CalcSize(store_act->ty) == 1) {
|
||||
code_lines.push_back("sb " + val_reg + ", 0(" + ptr_reg + ")");
|
||||
} else {
|
||||
throw std::runtime_error("Unknown bytes");
|
||||
}
|
||||
} else if (auto get_element_act = std::dynamic_pointer_cast<GetElementPtrAction>(act)) {
|
||||
if (get_element_act->indices.size() == 1) {
|
||||
// array access
|
||||
std::string res_reg;
|
||||
bool need_extra_store = false;
|
||||
if (get_element_act->result_full[0] == '#') {
|
||||
need_extra_store = true;
|
||||
res_reg = AllocateTmpReg(available_tmp_regs);
|
||||
} else if (get_element_act->result_full[0] == '$') {
|
||||
res_reg = ExtractRegName(get_element_act->result_full);
|
||||
} else {
|
||||
throw std::runtime_error("Unknown result type");
|
||||
}
|
||||
std::string ptr_reg;
|
||||
std::string idx_reg;
|
||||
FetchValueToReg(get_element_act->ptr_full, ptr_reg, layout, code_lines, available_tmp_regs);
|
||||
FetchValueToReg(get_element_act->indices[0], idx_reg, layout, code_lines, available_tmp_regs);
|
||||
std::string tmp_reg = AllocateTmpReg(available_tmp_regs);
|
||||
size_t element_sz = CalcSize(get_element_act->ty);
|
||||
code_lines.push_back("slli " + tmp_reg + ", " + idx_reg + ", " + std::to_string(std::countr_zero(element_sz)));
|
||||
code_lines.push_back("add " + res_reg + ", " + ptr_reg + ", " + tmp_reg);
|
||||
if (need_extra_store) {
|
||||
WriteToSpilledVar(get_element_act->result_full, res_reg, layout, code_lines, available_tmp_regs);
|
||||
}
|
||||
} else if (get_element_act->indices.size() == 2) {
|
||||
// // struct access
|
||||
if (get_element_act->indices[0] != "0") {
|
||||
throw std::runtime_error("struct access with non-zero offset is not supported");
|
||||
}
|
||||
size_t element_idx = std::stoull(get_element_act->indices[1]);
|
||||
auto class_ty = std::get<LLVMIRCLASSTYPE>(get_element_act->ty);
|
||||
const IRClassInfo &class_info = low_level_class_info.at(class_ty.class_name_full);
|
||||
size_t offset = class_info.member_var_pos_after_align[element_idx];
|
||||
std::string res_reg;
|
||||
bool need_extra_store = false;
|
||||
if (get_element_act->result_full[0] == '#') {
|
||||
need_extra_store = true;
|
||||
res_reg = AllocateTmpReg(available_tmp_regs);
|
||||
} else if (get_element_act->result_full[0] == '$') {
|
||||
res_reg = ExtractRegName(get_element_act->result_full);
|
||||
} else {
|
||||
throw std::runtime_error("Unknown result type");
|
||||
}
|
||||
std::string base_ptr_reg;
|
||||
FetchValueToReg(get_element_act->ptr_full, base_ptr_reg, layout, code_lines, available_tmp_regs);
|
||||
if (offset < 2048) {
|
||||
code_lines.push_back("addi " + res_reg + ", " + base_ptr_reg + ", " + std::to_string(offset));
|
||||
} else {
|
||||
std::string tmp_reg = AllocateTmpReg(available_tmp_regs);
|
||||
code_lines.push_back("li " + tmp_reg + ", " + std::to_string(offset));
|
||||
code_lines.push_back("add " + res_reg + ", " + base_ptr_reg + ", " + tmp_reg);
|
||||
}
|
||||
if (need_extra_store) {
|
||||
WriteToSpilledVar(get_element_act->result_full, res_reg, layout, code_lines, available_tmp_regs);
|
||||
}
|
||||
} else {
|
||||
throw std::runtime_error("Unknown getelementptr indices size");
|
||||
}
|
||||
} else if (auto icmp_act = std::dynamic_pointer_cast<ICMPAction>(act)) {
|
||||
std::string operand1_reg, operand2_reg;
|
||||
FetchValueToReg(icmp_act->operand1_full, operand1_reg, layout, code_lines, available_tmp_regs);
|
||||
FetchValueToReg(icmp_act->operand2_full, operand2_reg, layout, code_lines, available_tmp_regs);
|
||||
std::string res_reg;
|
||||
bool need_extra_store = false;
|
||||
if (icmp_act->result_full[0] == '#') {
|
||||
need_extra_store = true;
|
||||
res_reg = AllocateTmpReg(available_tmp_regs);
|
||||
} else if (icmp_act->result_full[0] == '$') {
|
||||
res_reg = ExtractRegName(icmp_act->result_full);
|
||||
} else {
|
||||
throw std::runtime_error("Unknown result type");
|
||||
}
|
||||
std::string tmp_reg = AllocateTmpReg(available_tmp_regs);
|
||||
if (icmp_act->op == "eq") {
|
||||
// code_lines.push_back("xor t2, t0, t1");
|
||||
// code_lines.push_back("seqz t2, t2");
|
||||
code_lines.push_back("xor " + tmp_reg + ", " + operand1_reg + ", " + operand2_reg);
|
||||
code_lines.push_back("seqz " + res_reg + ", " + tmp_reg);
|
||||
} else if (icmp_act->op == "ne") {
|
||||
// code_lines.push_back("xor t2, t0, t1");
|
||||
// code_lines.push_back("snez t2, t2");
|
||||
code_lines.push_back("xor " + tmp_reg + ", " + operand1_reg + ", " + operand2_reg);
|
||||
code_lines.push_back("snez " + res_reg + ", " + tmp_reg);
|
||||
} else if (icmp_act->op == "slt") {
|
||||
// code_lines.push_back("slt t2, t0, t1");
|
||||
code_lines.push_back("slt " + res_reg + ", " + operand1_reg + ", " + operand2_reg);
|
||||
} else if (icmp_act->op == "sle") {
|
||||
// code_lines.push_back("slt t2, t1, t0");
|
||||
// code_lines.push_back("xori t2, t2, 1");
|
||||
code_lines.push_back("slt " + res_reg + ", " + operand2_reg + ", " + operand1_reg);
|
||||
code_lines.push_back("xori " + res_reg + ", " + res_reg + ", 1");
|
||||
} else if (icmp_act->op == "sgt") {
|
||||
// code_lines.push_back("slt t2, t1, t0");
|
||||
code_lines.push_back("slt " + res_reg + ", " + operand2_reg + ", " + operand1_reg);
|
||||
} else if (icmp_act->op == "sge") {
|
||||
// code_lines.push_back("slt t2, t0, t1");
|
||||
// code_lines.push_back("xori t2, t2, 1");
|
||||
code_lines.push_back("slt " + res_reg + ", " + operand1_reg + ", " + operand2_reg);
|
||||
code_lines.push_back("xori " + res_reg + ", " + res_reg + ", 1");
|
||||
} else {
|
||||
throw std::runtime_error("Unknown icmp operation");
|
||||
}
|
||||
if (need_extra_store) {
|
||||
WriteToSpilledVar(icmp_act->result_full, res_reg, layout, code_lines, available_tmp_regs);
|
||||
}
|
||||
} else if (auto call_act = std::dynamic_pointer_cast<CallItem>(act)) {
|
||||
// no need to to further process, as callling convention is handled in reg alloc
|
||||
code_lines.push_back("call " + call_act->func_name_raw);
|
||||
if (call_act->move_sp_up) {
|
||||
size_t delta = 4 * call_act->move_sp_up;
|
||||
code_lines.push_back("addi sp, sp, " + std::to_string(delta));
|
||||
}
|
||||
} else if (auto phi_act = std::dynamic_pointer_cast<PhiItem>(act)) {
|
||||
throw std::runtime_error("Phi should not be in the layout");
|
||||
} else if (auto select_act = std::dynamic_pointer_cast<SelectItem>(act)) {
|
||||
std::string res_reg;
|
||||
bool need_extra_store = false;
|
||||
if (select_act->result_full[0] == '#') {
|
||||
need_extra_store = true;
|
||||
res_reg = AllocateTmpReg(available_tmp_regs);
|
||||
} else if (select_act->result_full[0] == '$') {
|
||||
res_reg = ExtractRegName(select_act->result_full);
|
||||
} else {
|
||||
throw std::runtime_error("Unknown result type");
|
||||
}
|
||||
std::string operand1_reg, operand2_reg, cond_reg;
|
||||
FetchValueToReg(select_act->cond_full, cond_reg, layout, code_lines, available_tmp_regs);
|
||||
FetchValueToReg(select_act->true_val_full, operand1_reg, layout, code_lines, available_tmp_regs);
|
||||
FetchValueToReg(select_act->false_val_full, operand2_reg, layout, code_lines, available_tmp_regs);
|
||||
std::string tmp1_reg = AllocateTmpReg(available_tmp_regs);
|
||||
std::string tmp2_reg = AllocateTmpReg(available_tmp_regs);
|
||||
code_lines.push_back("slli " + tmp1_reg + ", " + cond_reg + ", 31");
|
||||
code_lines.push_back("srai " + tmp1_reg + ", " + tmp1_reg + ", 31");
|
||||
code_lines.push_back("xor " + tmp2_reg + ", " + operand1_reg + ", " + operand2_reg);
|
||||
code_lines.push_back("and " + tmp2_reg + ", " + tmp2_reg + ", " + tmp1_reg);
|
||||
code_lines.push_back("xor " + res_reg + ", " + tmp2_reg + ", " + operand2_reg);
|
||||
if (need_extra_store) {
|
||||
WriteToSpilledVar(select_act->result_full, res_reg, layout, code_lines, available_tmp_regs);
|
||||
}
|
||||
} else if (auto load_spilled_args_act = std::dynamic_pointer_cast<opt::LoadSpilledArgs>(act)) {
|
||||
std::string res_reg;
|
||||
bool need_extra_store = false;
|
||||
if (load_spilled_args_act->var_full[0] == '$') {
|
||||
res_reg = ExtractRegName(load_spilled_args_act->var_full);
|
||||
} else if (load_spilled_args_act->var_full[0] == '#') {
|
||||
need_extra_store = true;
|
||||
res_reg = AllocateTmpReg(available_tmp_regs);
|
||||
} else {
|
||||
throw std::runtime_error("Unknown result type");
|
||||
}
|
||||
size_t offset = 4 * (load_spilled_args_act->arg_id - 8);
|
||||
code_lines.push_back("lw " + res_reg + ", " + std::to_string(offset) + "(s0)");
|
||||
if (need_extra_store) {
|
||||
WriteToSpilledVar(load_spilled_args_act->var_full, res_reg, layout, code_lines, available_tmp_regs);
|
||||
}
|
||||
} else if (auto store_spilled_args_act = std::dynamic_pointer_cast<opt::StoreSpilledArgs>(act)) {
|
||||
if (store_spilled_args_act->move_sp_down) {
|
||||
size_t delta = 4 * store_spilled_args_act->move_sp_down;
|
||||
code_lines.push_back("addi sp, sp, -" + std::to_string(delta));
|
||||
}
|
||||
std::string val_reg;
|
||||
FetchValueToReg(store_spilled_args_act->var_full, val_reg, layout, code_lines, available_tmp_regs);
|
||||
size_t offset = 4 * (store_spilled_args_act->arg_id - 8);
|
||||
code_lines.push_back("sw " + val_reg + ", " + std::to_string(offset) + "(sp)");
|
||||
} else if (auto move_act = std::dynamic_pointer_cast<opt::MoveInstruct>(act)) {
|
||||
std::string src_reg;
|
||||
FetchValueToReg(move_act->src_full, src_reg, layout, code_lines, available_tmp_regs);
|
||||
if (move_act->dest_full[0] == '$') {
|
||||
std::string dest_reg = ExtractRegName(move_act->dest_full);
|
||||
code_lines.push_back("mv " + dest_reg + ", " + src_reg);
|
||||
} else if (move_act->dest_full[0] == '#') {
|
||||
WriteToSpilledVar(move_act->dest_full, src_reg, layout, code_lines, available_tmp_regs);
|
||||
} else {
|
||||
throw std::runtime_error("Unknown dest type");
|
||||
}
|
||||
} else {
|
||||
throw std::runtime_error("Unknown action type");
|
||||
}
|
||||
}
|
||||
|
||||
std::string AllocateTmpReg(std::vector<std::string> &available_tmp_regs) {
|
||||
if (available_tmp_regs.size() == 0) throw std::runtime_error("No available tmp register");
|
||||
std::string res;
|
||||
res = available_tmp_regs.back();
|
||||
available_tmp_regs.pop_back();
|
||||
return res;
|
||||
}
|
||||
|
||||
std::string ExtractRegName(const std::string &raw) {
|
||||
if (raw[0] != '$') throw std::runtime_error("Not a register");
|
||||
size_t reg_id = std::stoull(raw.substr(5));
|
||||
return "x" + std::to_string(reg_id);
|
||||
}
|
||||
|
||||
} // namespace OptBackend
|
||||
@ -6,6 +6,13 @@
|
||||
#include "tools.h"
|
||||
|
||||
using namespace opt;
|
||||
void VarCollect(CFGType &cfg, std::vector<std::string> &id_to_var, std::unordered_map<std::string, size_t> &var_to_id);
|
||||
void UseDefCollect(CFGType &cfg, [[maybe_unused]] std::vector<std::string> &id_to_var,
|
||||
std::unordered_map<std::string, size_t> &var_to_id);
|
||||
void BlockLevelTracking(CFGType &cfg, [[maybe_unused]] std::vector<std::string> &id_to_var,
|
||||
[[maybe_unused]] std::unordered_map<std::string, size_t> &var_to_id);
|
||||
void ActionLevelTracking(CFGType &cfg, CFGNodeType *node);
|
||||
void LiveAnalysis(CFGType &cfg);
|
||||
void VarCollect(CFGType &cfg, std::vector<std::string> &id_to_var, std::unordered_map<std::string, size_t> &var_to_id) {
|
||||
auto TryAddVar = [&](const std::string &var) {
|
||||
if (var_to_id.find(var) == var_to_id.end()) {
|
||||
|
||||
@ -3,7 +3,10 @@
|
||||
#include <queue>
|
||||
#include "IR/IR_basic.h"
|
||||
#include "cfg.h"
|
||||
|
||||
void BuildDomForFunction(const std::shared_ptr<FunctionDefItem> &func, const CFGType &cfg);
|
||||
void DFSReplace(CFGNodeType *cur_node, std::unordered_map<std::string, size_t> &var_to_version,
|
||||
std::unordered_map<std::string, std::stack<std::string>> &var_to_name_stk);
|
||||
void ConductMem2RegForFunction(const std::shared_ptr<FunctionDefItem> &func, const CFGType &cfg);
|
||||
void BuildDomForFunction(const std::shared_ptr<FunctionDefItem> &func, const CFGType &cfg) {
|
||||
bool all_dom_unchanged;
|
||||
CFGNodeCollection all_nodes;
|
||||
|
||||
@ -3,7 +3,7 @@
|
||||
#include "IR/IR_basic.h"
|
||||
|
||||
using namespace opt;
|
||||
|
||||
void ConductPhiEliminateForFunction(std::shared_ptr<FunctionDefItem> func, CFGType &cfg);
|
||||
void ConductPhiEliminateForFunction(std::shared_ptr<FunctionDefItem> func, CFGType &cfg) {
|
||||
size_t new_block_cnt = 0;
|
||||
for (auto cur_node : cfg.nodes) {
|
||||
|
||||
@ -5,7 +5,11 @@
|
||||
#include "liveanalysis.h"
|
||||
#include "phieliminate.h"
|
||||
#include "tools.h"
|
||||
|
||||
void EnforcePhysicalRegs(CFGType &cfg);
|
||||
void TranslateColorResult(std::shared_ptr<FunctionDefItem> func, CFGType &cfg, ConfGraph &confgraph);
|
||||
void PairMoveEliminate(std::shared_ptr<FunctionDefItem> func, CFGType &cfg, ConfGraph &confgraph);
|
||||
void RemoveCallingConventionKeeper(std::shared_ptr<FunctionDefItem> func, CFGType &cfg, ConfGraph &confgraph);
|
||||
void ConductRegAllocForFunction(std::shared_ptr<FunctionDefItem> func);
|
||||
void EnforcePhysicalRegs(CFGType &cfg) {
|
||||
using namespace opt;
|
||||
// process callee side
|
||||
|
||||
Reference in New Issue
Block a user