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/*
* Copyright (C) 2017-2019 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if ENABLE(B3_JIT)
#include "AirArg.h"
namespace JSC { namespace B3 { namespace Air {
static constexpr uint8_t formRoleShift = 0;
static constexpr uint8_t formRoleMask = 15;
static constexpr uint8_t formBankShift = 4;
static constexpr uint8_t formBankMask = 1;
static constexpr uint8_t formWidthShift = 5;
static constexpr uint8_t formWidthMask = 3;
static constexpr uint8_t formInvalidShift = 7;
#define ENCODE_INST_FORM(role, bank, width) (static_cast<uint8_t>(role) << formRoleShift | static_cast<uint8_t>(bank) << formBankShift | static_cast<uint8_t>(width) << formWidthShift)
#define INVALID_INST_FORM (1 << formInvalidShift)
JS_EXPORT_PRIVATE extern const uint8_t g_formTable[];
inline Arg::Role decodeFormRole(uint8_t value)
{
return static_cast<Arg::Role>((value >> formRoleShift) & formRoleMask);
}
inline Bank decodeFormBank(uint8_t value)
{
return static_cast<Bank>((value >> formBankShift) & formBankMask);
}
inline Width decodeFormWidth(uint8_t value)
{
return static_cast<Width>((value >> formWidthShift) & formWidthMask);
}
} } } // namespace JSC::B3::Air
#endif // ENABLE(B3_JIT)
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