mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2025-04-11 11:20:43 +00:00
60 lines
2.0 KiB
C++
60 lines
2.0 KiB
C++
/*
|
|
* Copyright (C) 2017 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(ASSEMBLER)
|
|
|
|
#include "MacroAssembler.h"
|
|
|
|
namespace JSC {
|
|
|
|
class AllowMacroScratchRegisterUsageIf {
|
|
public:
|
|
AllowMacroScratchRegisterUsageIf(MacroAssembler& masm, bool allowIfTrue)
|
|
: m_masm(masm)
|
|
, m_allowIfTrue(allowIfTrue)
|
|
, m_oldValueOfAllowScratchRegister(masm.m_allowScratchRegister)
|
|
{
|
|
if (m_allowIfTrue)
|
|
masm.m_allowScratchRegister = true;
|
|
}
|
|
|
|
~AllowMacroScratchRegisterUsageIf()
|
|
{
|
|
if (m_allowIfTrue)
|
|
m_masm.m_allowScratchRegister = m_oldValueOfAllowScratchRegister;
|
|
}
|
|
|
|
private:
|
|
MacroAssembler& m_masm;
|
|
bool m_allowIfTrue;
|
|
bool m_oldValueOfAllowScratchRegister;
|
|
};
|
|
|
|
} // namespace JSC
|
|
|
|
#endif // ENABLE(ASSEMBLER)
|