mirror of
https://github.com/fergalmoran/ladybird.git
synced 2025-12-30 05:08:56 +00:00
5a08544138
Instead of storing source offsets with each instruction, we now keep them in a side table in Executable. This shrinks each instruction by 8 bytes, further improving locality.
49 lines
984 B
C++
49 lines
984 B
C++
/*
|
|
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/Format.h>
|
|
|
|
namespace JS::Bytecode {
|
|
|
|
class BasicBlock;
|
|
|
|
class Label {
|
|
public:
|
|
explicit Label(BasicBlock const& block)
|
|
: m_block(&block)
|
|
{
|
|
}
|
|
|
|
// Used while compiling.
|
|
BasicBlock const& block() const { return *m_block; }
|
|
|
|
// Used after compiling.
|
|
size_t address() const { return m_address; }
|
|
|
|
void set_address(size_t address) { m_address = address; }
|
|
|
|
private:
|
|
union {
|
|
// Relevant while compiling.
|
|
BasicBlock const* m_block { nullptr };
|
|
|
|
// Relevant after compiling.
|
|
size_t m_address;
|
|
};
|
|
};
|
|
|
|
}
|
|
|
|
template<>
|
|
struct AK::Formatter<JS::Bytecode::Label> : AK::Formatter<FormatString> {
|
|
ErrorOr<void> format(FormatBuilder& builder, JS::Bytecode::Label const& label)
|
|
{
|
|
return AK::Formatter<FormatString>::format(builder, "@{:x}"sv, label.address());
|
|
}
|
|
};
|