1d8ec677a3
We can now stay in machine code for environment variable read accesses as long as they are cached and initialized. 20% speed-up on Octane/zlib.js :^)
26 lines
611 B
C++
26 lines
611 B
C++
/*
|
|
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/Types.h>
|
|
#include <LibJS/Forward.h>
|
|
|
|
namespace JS {
|
|
|
|
struct EnvironmentCoordinate {
|
|
u32 hops { invalid_marker };
|
|
u32 index { invalid_marker };
|
|
|
|
static FlatPtr hops_offset() { return OFFSET_OF(EnvironmentCoordinate, hops); }
|
|
static FlatPtr index_offset() { return OFFSET_OF(EnvironmentCoordinate, index); }
|
|
|
|
bool is_valid() const { return hops != invalid_marker && index != invalid_marker; }
|
|
|
|
static constexpr u32 invalid_marker = 0xfffffffe;
|
|
};
|
|
|
|
}
|