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// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_TORQUE_CSA_GENERATOR_H_
#define V8_TORQUE_CSA_GENERATOR_H_
#include <iostream>
#include "src/torque/cfg.h"
#include "src/torque/declarable.h"
namespace v8 {
namespace internal {
namespace torque {
class CSAGenerator {
public:
CSAGenerator(const ControlFlowGraph& cfg, std::ostream& out,
base::Optional<Builtin::Kind> linkage = base::nullopt)
: cfg_(cfg),
out_(out),
linkage_(linkage),
previous_position_(SourcePosition::Invalid()) {}
base::Optional<Stack<std::string>> EmitGraph(Stack<std::string> parameters);
static constexpr const char* ARGUMENTS_VARIABLE_STRING = "arguments";
static void EmitCSAValue(VisitResult result, const Stack<std::string>& values,
std::ostream& out);
private:
const ControlFlowGraph& cfg_;
std::ostream& out_;
size_t fresh_id_ = 0;
base::Optional<Builtin::Kind> linkage_;
SourcePosition previous_position_;
void EmitSourcePosition(SourcePosition pos, bool always_emit = false);
std::string PreCallableExceptionPreparation(
base::Optional<Block*> catch_block);
void PostCallableExceptionPreparation(const std::string& catch_name,
const Type* return_type,
base::Optional<Block*> catch_block,
Stack<std::string>* stack);
std::string FreshNodeName() { return "tmp" + std::to_string(fresh_id_++); }
std::string FreshCatchName() { return "catch" + std::to_string(fresh_id_++); }
std::string BlockName(const Block* block) {
return "block" + std::to_string(block->id());
}
void ProcessArgumentsCommon(const TypeVector& parameter_types,
std::vector<std::string>* args,
std::vector<std::string>* constexpr_arguments,
Stack<std::string>* stack);
Stack<std::string> EmitBlock(const Block* block);
void EmitInstruction(const Instruction& instruction,
Stack<std::string>* stack);
#define EMIT_INSTRUCTION_DECLARATION(T) \
void EmitInstruction(const T& instruction, Stack<std::string>* stack);
TORQUE_INSTRUCTION_LIST(EMIT_INSTRUCTION_DECLARATION)
#undef EMIT_INSTRUCTION_DECLARATION
};
} // namespace torque
} // namespace internal
} // namespace v8
#endif // V8_TORQUE_CSA_GENERATOR_H_