jak-project/goalc/compiler/Compiler.cpp
water111 24fe2c78c0
[goalc] Address-to-line (#783)
* refactor debug info stuff before adding form to emit

* source mapping working for non-macro sourced forms

* support macros
2021-08-26 20:33:00 -04:00

499 lines
16 KiB
C++

#include "Compiler.h"
#include <chrono>
#include <thread>
#include "CompilerException.h"
#include "IR.h"
#include "common/link_types.h"
#include "goalc/make/Tools.h"
#include "goalc/regalloc/Allocator.h"
#include "goalc/regalloc/Allocator_v2.h"
#include "third-party/fmt/core.h"
using namespace goos;
Compiler::Compiler(std::unique_ptr<ReplWrapper> repl)
: m_debugger(&m_listener, &m_goos.reader), m_repl(std::move(repl)) {
m_listener.add_debugger(&m_debugger);
m_ts.add_builtin_types();
m_global_env = std::make_unique<GlobalEnv>();
m_none = std::make_unique<None>(m_ts.make_typespec("none"));
// let the build system run us
m_make.add_tool(std::make_shared<CompilerTool>(this));
// load GOAL library
Object library_code = m_goos.reader.read_from_file({"goal_src", "goal-lib.gc"});
compile_object_file("goal-lib", library_code, false);
// add built-in forms to symbol info
for (auto& builtin : g_goal_forms) {
m_symbol_info.add_builtin(builtin.first);
}
// load auto-complete history, only if we are running in the interactive mode.
if (m_repl) {
m_repl->load_history();
}
// add GOOS forms that get info from the compiler
setup_goos_forms();
}
ReplStatus Compiler::execute_repl(bool auto_listen) {
// init repl
m_repl->print_welcome_message();
auto examples = m_repl->examples;
auto regex_colors = m_repl->regex_colors;
m_repl->init_default_settings();
using namespace std::placeholders;
m_repl->get_repl().set_completion_callback(
std::bind(&Compiler::find_symbols_by_prefix, this, _1, _2, std::cref(examples)));
m_repl->get_repl().set_hint_callback(
std::bind(&Compiler::find_hints_by_prefix, this, _1, _2, _3, std::cref(examples)));
m_repl->get_repl().set_highlighter_callback(
std::bind(&Compiler::repl_coloring, this, _1, _2, std::cref(regex_colors)));
if (auto_listen) {
m_listener.connect_to_target();
}
while (!m_want_exit && !m_want_reload) {
try {
// 1). get a line from the user (READ)
std::string prompt = fmt::format(fmt::emphasis::bold | fg(fmt::color::cyan), "g > ");
if (m_listener.is_connected()) {
prompt = fmt::format(fmt::emphasis::bold | fg(fmt::color::lime_green), "gc> ");
}
if (m_debugger.is_halted()) {
prompt = fmt::format(fmt::emphasis::bold | fg(fmt::color::magenta), "gs> ");
} else if (m_debugger.is_attached()) {
prompt = fmt::format(fmt::emphasis::bold | fg(fmt::color::red), "gr> ");
}
auto code = m_goos.reader.read_from_stdin(prompt, *m_repl);
if (!code) {
continue;
}
// 2). compile
auto obj_file = compile_object_file("repl", *code, m_listener.is_connected());
if (m_settings.debug_print_ir) {
obj_file->debug_print_tl();
}
if (!obj_file->is_empty()) {
// 3). color
color_object_file(obj_file);
// 4). codegen
auto data = codegen_object_file(obj_file);
// 4). send!
if (m_listener.is_connected()) {
m_listener.send_code(data);
if (!m_listener.most_recent_send_was_acked()) {
print_compiler_warning("Runtime is not responding. Did it crash?\n");
}
}
}
} catch (std::exception& e) {
print_compiler_warning("REPL Error: {}\n", e.what());
}
}
if (m_listener.is_connected()) {
m_listener.send_reset(false); // reset the target
m_listener.disconnect();
}
if (m_want_exit) {
return ReplStatus::WANT_EXIT;
}
if (m_want_reload) {
return ReplStatus::WANT_RELOAD;
}
return ReplStatus::OK;
}
FileEnv* Compiler::compile_object_file(const std::string& name,
goos::Object code,
bool allow_emit) {
auto file_env = m_global_env->add_file(name);
Env* compilation_env = file_env;
file_env->add_top_level_function(
compile_top_level_function("top-level", std::move(code), compilation_env));
if (!allow_emit && !file_env->is_empty()) {
throw std::runtime_error("Compilation generated code, but wasn't supposed to");
}
return file_env;
}
std::unique_ptr<FunctionEnv> Compiler::compile_top_level_function(const std::string& name,
const goos::Object& code,
Env* env) {
auto fe = std::make_unique<FunctionEnv>(env, name, &m_goos.reader);
fe->set_segment(TOP_LEVEL_SEGMENT);
auto result = compile_error_guard(code, fe.get());
// only move to return register if we actually got a result
if (!dynamic_cast<const None*>(result)) {
fe->emit_ir<IR_Return>(code, fe->make_gpr(result->type()), result->to_gpr(code, fe.get()),
emitter::gRegInfo.get_gpr_ret_reg());
}
if (!fe->code().empty()) {
fe->emit_ir<IR_Null>(code);
}
fe->finish();
return fe;
}
Val* Compiler::compile_error_guard(const goos::Object& code, Env* env) {
try {
return compile(code, env);
} catch (CompilerException& ce) {
if (ce.print_err_stack) {
auto obj_print = code.print();
if (obj_print.length() > 80) {
obj_print = obj_print.substr(0, 80);
obj_print += "...";
}
bool term;
auto loc_info = m_goos.reader.db.get_info_for(code, &term);
if (term) {
fmt::print(fg(fmt::color::yellow) | fmt::emphasis::bold, "Location:\n");
fmt::print(loc_info);
}
fmt::print(fg(fmt::color::yellow) | fmt::emphasis::bold, "Code:\n");
fmt::print("{}\n", obj_print);
if (term) {
ce.print_err_stack = false;
}
std::string line(80, '-');
line.push_back('\n');
fmt::print(line);
}
throw ce;
}
catch (std::runtime_error& e) {
fmt::print(fg(fmt::color::crimson) | fmt::emphasis::bold, "-- Compilation Error! --\n");
fmt::print(fmt::emphasis::bold, "{}\n", e.what());
auto obj_print = code.print();
if (obj_print.length() > 80) {
obj_print = obj_print.substr(0, 80);
obj_print += "...";
}
bool term;
auto loc_info = m_goos.reader.db.get_info_for(code, &term);
if (term) {
fmt::print(fg(fmt::color::yellow) | fmt::emphasis::bold, "Location:\n");
fmt::print(loc_info);
}
fmt::print(fg(fmt::color::yellow) | fmt::emphasis::bold, "Code:\n");
fmt::print("{}\n", obj_print);
CompilerException ce("Compiler Exception");
if (term) {
ce.print_err_stack = false;
}
std::string line(80, '-');
line.push_back('\n');
fmt::print(line);
throw ce;
}
}
void Compiler::color_object_file(FileEnv* env) {
int num_spills_in_file = 0;
for (auto& f : env->functions()) {
AllocationInput input;
input.is_asm_function = f->is_asm_func;
for (auto& i : f->code()) {
input.instructions.push_back(i->to_rai());
input.debug_instruction_names.push_back(i->print());
}
for (auto& reg_val : f->reg_vals()) {
if (reg_val->forced_on_stack()) {
input.force_on_stack_regs.insert(reg_val->ireg().id);
}
}
input.max_vars = f->max_vars();
input.constraints = f->constraints();
input.stack_slots_for_stack_vars = f->stack_slots_used_for_stack_vars();
input.function_name = f->name();
if (m_settings.debug_print_regalloc) {
input.debug_settings.print_input = true;
input.debug_settings.print_result = true;
input.debug_settings.print_analysis = true;
input.debug_settings.allocate_log_level = 2;
}
m_debug_stats.total_funcs++;
auto regalloc_result_2 = allocate_registers_v2(input);
if (regalloc_result_2.ok) {
if (regalloc_result_2.num_spilled_vars > 0) {
// fmt::print("Function {} has {} spilled vars.\n", f->name(),
// regalloc_result_2.num_spilled_vars);
}
num_spills_in_file += regalloc_result_2.num_spills;
f->set_allocations(std::move(regalloc_result_2));
} else {
fmt::print(
"Warning: function {} failed register allocation with the v2 allocator. Falling back to "
"the v1 allocator.\n",
f->name());
m_debug_stats.funcs_requiring_v1_allocator++;
auto regalloc_result = allocate_registers(input);
m_debug_stats.num_spills_v1 += regalloc_result.num_spills;
num_spills_in_file += regalloc_result.num_spills;
f->set_allocations(std::move(regalloc_result));
}
}
m_debug_stats.num_spills += num_spills_in_file;
}
std::vector<u8> Compiler::codegen_object_file(FileEnv* env) {
try {
auto debug_info = &m_debugger.get_debug_info_for_object(env->name());
debug_info->clear();
CodeGenerator gen(env, debug_info);
bool ok = true;
auto result = gen.run(&m_ts);
for (auto& f : env->functions()) {
if (f->settings.print_asm) {
fmt::print("{}\n",
debug_info->disassemble_function_by_name(f->name(), &ok, &m_goos.reader));
}
}
auto stats = gen.get_obj_stats();
m_debug_stats.num_moves_eliminated += stats.moves_eliminated;
return result;
} catch (std::exception& e) {
throw_compiler_error_no_code("Error during codegen: {}", e.what());
}
return {};
}
bool Compiler::codegen_and_disassemble_object_file(FileEnv* env,
std::vector<u8>* data_out,
std::string* asm_out) {
auto debug_info = &m_debugger.get_debug_info_for_object(env->name());
debug_info->clear();
CodeGenerator gen(env, debug_info);
*data_out = gen.run(&m_ts);
bool ok = true;
*asm_out = debug_info->disassemble_all_functions(&ok, &m_goos.reader);
return ok;
}
void Compiler::compile_and_send_from_string(const std::string& source_code) {
if (!connect_to_target()) {
throw std::runtime_error(
"Compiler failed to connect to target for compile_and_send_from_string.");
}
auto code = m_goos.reader.read_from_string(source_code);
auto compiled = compile_object_file("test-code", code, true);
assert(!compiled->is_empty());
color_object_file(compiled);
auto data = codegen_object_file(compiled);
m_listener.send_code(data);
if (!m_listener.most_recent_send_was_acked()) {
print_compiler_warning("Runtime is not responding after sending test code. Did it crash?\n");
}
}
std::vector<std::string> Compiler::run_test_from_file(const std::string& source_code) {
try {
if (!connect_to_target()) {
throw std::runtime_error("Compiler::run_test_from_file couldn't connect!");
}
auto code = m_goos.reader.read_from_file({source_code});
auto compiled = compile_object_file("test-code", code, true);
if (compiled->is_empty()) {
return {};
}
color_object_file(compiled);
auto data = codegen_object_file(compiled);
m_listener.record_messages(ListenerMessageKind::MSG_PRINT);
m_listener.send_code(data);
if (!m_listener.most_recent_send_was_acked()) {
print_compiler_warning("Runtime is not responding after sending test code. Did it crash?\n");
}
return m_listener.stop_recording_messages();
} catch (std::exception& e) {
fmt::print("[Compiler] Failed to compile test program {}: {}\n", source_code, e.what());
throw e;
}
}
std::vector<std::string> Compiler::run_test_from_string(const std::string& src,
const std::string& obj_name) {
try {
if (!connect_to_target()) {
throw std::runtime_error("Compiler::run_test_from_file couldn't connect!");
}
auto code = m_goos.reader.read_from_string({src});
auto compiled = compile_object_file(obj_name, code, true);
if (compiled->is_empty()) {
return {};
}
color_object_file(compiled);
auto data = codegen_object_file(compiled);
m_listener.record_messages(ListenerMessageKind::MSG_PRINT);
m_listener.send_code(data);
if (!m_listener.most_recent_send_was_acked()) {
print_compiler_warning("Runtime is not responding after sending test code. Did it crash?\n");
}
return m_listener.stop_recording_messages();
} catch (std::exception& e) {
fmt::print("[Compiler] Failed to compile test program from string {}: {}\n", src, e.what());
throw e;
}
}
bool Compiler::connect_to_target() {
if (!m_listener.is_connected()) {
for (int i = 0; i < 1000; i++) {
m_listener.connect_to_target();
std::this_thread::sleep_for(std::chrono::microseconds(10000));
if (m_listener.is_connected()) {
break;
}
}
if (!m_listener.is_connected()) {
return false;
}
}
return true;
}
/*!
* Just run the front end on a string. Will not do register allocation or code generation.
* Useful for typechecking, defining types, or running strings that invoke the compiler again.
*/
void Compiler::run_front_end_on_string(const std::string& src) {
auto code = m_goos.reader.read_from_string({src});
compile_object_file("run-on-string", code, true);
}
/*!
* Just run the front end on a file. Will not do register allocation or code generation.
* Useful for typechecking, defining types, or running strings that invoke the compiler again.
*/
void Compiler::run_front_end_on_file(const std::vector<std::string>& path) {
auto code = m_goos.reader.read_from_file(path);
compile_object_file("run-on-file", code, true);
}
/*!
* Run the entire compilation process on the input source code. Will generate an object file, but
* won't save it anywhere.
*/
void Compiler::run_full_compiler_on_string_no_save(const std::string& src) {
auto code = m_goos.reader.read_from_string({src});
auto compiled = compile_object_file("run-on-string", code, true);
color_object_file(compiled);
codegen_object_file(compiled);
}
std::vector<std::string> Compiler::run_test_no_load(const std::string& source_code) {
auto code = m_goos.reader.read_from_file({source_code});
compile_object_file("test-code", code, true);
return {};
}
void Compiler::shutdown_target() {
if (m_debugger.is_attached()) {
m_debugger.detach();
}
if (m_listener.is_connected()) {
m_listener.send_reset(true);
}
}
void Compiler::typecheck(const goos::Object& form,
const TypeSpec& expected,
const TypeSpec& actual,
const std::string& error_message) {
(void)form;
if (!m_ts.typecheck_and_throw(expected, actual, error_message, false, false)) {
throw_compiler_error(form, "Typecheck failed. For {}, got a \"{}\" when expecting a \"{}\"",
error_message, actual.print(), expected.print());
}
}
/*!
* Like typecheck, but will allow Val* to be #f if the destination isn't a number.
* Also will convert to register types for the type checking.
*/
void Compiler::typecheck_reg_type_allow_false(const goos::Object& form,
const TypeSpec& expected,
const Val* actual,
const std::string& error_message) {
if (!m_ts.typecheck_and_throw(m_ts.make_typespec("number"), expected, "", false, false)) {
auto as_sym_val = dynamic_cast<const SymbolVal*>(actual);
if (as_sym_val && as_sym_val->name() == "#f") {
return;
}
}
typecheck(form, expected, coerce_to_reg_type(actual->type()), error_message);
}
bool Compiler::knows_object_file(const std::string& name) {
return m_debugger.knows_object(name);
}
void Compiler::setup_goos_forms() {
m_goos.register_form("get-enum-vals", [&](const goos::Object& form, goos::Arguments& args,
const std::shared_ptr<goos::EnvironmentObject>& env) {
m_goos.eval_args(&args, env);
va_check(form, args, {goos::ObjectType::SYMBOL}, {});
std::vector<Object> enum_vals;
const auto& enum_name = args.unnamed.at(0).as_symbol()->name;
auto enum_type = m_ts.try_enum_lookup(enum_name);
if (!enum_type) {
throw_compiler_error(form, "Unknown enum {} in get-enum-vals", enum_name);
}
std::vector<std::pair<std::string, s64>> sorted_values;
for (auto& val : enum_type->entries()) {
sorted_values.emplace_back(val.first, val.second);
}
std::sort(sorted_values.begin(), sorted_values.end(),
[](const std::pair<std::string, s64>& a, const std::pair<std::string, s64>& b) {
return a.second < b.second;
});
for (auto& thing : sorted_values) {
enum_vals.push_back(PairObject::make_new(m_goos.intern(thing.first),
goos::Object::make_integer(thing.second)));
}
return goos::build_list(enum_vals);
});
}