From a4e969f4965059196ca948db781e52f7cfebf19e Mon Sep 17 00:00:00 2001 From: Lorry Tar Creator Date: Tue, 24 May 2016 08:28:08 +0000 Subject: webkitgtk-2.12.3 --- .../assembler/DisallowMacroScratchRegisterUsage.h | 59 ++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 Source/JavaScriptCore/assembler/DisallowMacroScratchRegisterUsage.h (limited to 'Source/JavaScriptCore/assembler/DisallowMacroScratchRegisterUsage.h') diff --git a/Source/JavaScriptCore/assembler/DisallowMacroScratchRegisterUsage.h b/Source/JavaScriptCore/assembler/DisallowMacroScratchRegisterUsage.h new file mode 100644 index 000000000..e94ad0830 --- /dev/null +++ b/Source/JavaScriptCore/assembler/DisallowMacroScratchRegisterUsage.h @@ -0,0 +1,59 @@ +/* + * Copyright (C) 2015 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. + */ + +#ifndef DisallowMacroScratchRegisterUsage_h +#define DisallowMacroScratchRegisterUsage_h + +#if ENABLE(ASSEMBLER) + +#include "MacroAssembler.h" + +namespace JSC { + +class DisallowMacroScratchRegisterUsage { +public: + DisallowMacroScratchRegisterUsage(MacroAssembler& masm) + : m_masm(masm) + , m_oldValueOfAllowScratchRegister(masm.m_allowScratchRegister) + { + masm.m_allowScratchRegister = false; + } + + ~DisallowMacroScratchRegisterUsage() + { + m_masm.m_allowScratchRegister = m_oldValueOfAllowScratchRegister; + } + +private: + MacroAssembler& m_masm; + bool m_oldValueOfAllowScratchRegister; +}; + +} // namespace JSC + +#endif // ENABLE(ASSEMBLER) + +#endif // DisallowMacroScratchRegisterUsage_h + -- cgit v1.2.1