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Diffstat (limited to 'src/3rdparty/javascriptcore/JavaScriptCore/bytecode/Instruction.h')
| -rw-r--r-- | src/3rdparty/javascriptcore/JavaScriptCore/bytecode/Instruction.h | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/src/3rdparty/javascriptcore/JavaScriptCore/bytecode/Instruction.h b/src/3rdparty/javascriptcore/JavaScriptCore/bytecode/Instruction.h deleted file mode 100644 index bc2de19..0000000 --- a/src/3rdparty/javascriptcore/JavaScriptCore/bytecode/Instruction.h +++ /dev/null @@ -1,167 +0,0 @@ -/* - * Copyright (C) 2008 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. - * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of - * its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "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 OR ITS 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 Instruction_h -#define Instruction_h - -#include "MacroAssembler.h" -#include "Opcode.h" -#include "Structure.h" -#include "StructureChain.h" -#include <wtf/VectorTraits.h> - -#define POLYMORPHIC_LIST_CACHE_SIZE 8 - -namespace JSC { - - // *Sigh*, If the JIT is enabled we need to track the stubRountine (of type CodeLocationLabel), - // If the JIT is not in use we don't actually need the variable (that said, if the JIT is not in use we don't - // curently actually use PolymorphicAccessStructureLists, which we should). Anyway, this seems like the best - // solution for now - will need to something smarter if/when we actually want mixed-mode operation. -#if ENABLE(JIT) - typedef CodeLocationLabel PolymorphicAccessStructureListStubRoutineType; -#else - typedef void* PolymorphicAccessStructureListStubRoutineType; -#endif - - class JSCell; - class Structure; - class StructureChain; - - // Structure used by op_get_by_id_self_list and op_get_by_id_proto_list instruction to hold data off the main opcode stream. - struct PolymorphicAccessStructureList : FastAllocBase { - struct PolymorphicStubInfo { - bool isChain; - PolymorphicAccessStructureListStubRoutineType stubRoutine; - Structure* base; - union { - Structure* proto; - StructureChain* chain; - } u; - - void set(PolymorphicAccessStructureListStubRoutineType _stubRoutine, Structure* _base) - { - stubRoutine = _stubRoutine; - base = _base; - u.proto = 0; - isChain = false; - } - - void set(PolymorphicAccessStructureListStubRoutineType _stubRoutine, Structure* _base, Structure* _proto) - { - stubRoutine = _stubRoutine; - base = _base; - u.proto = _proto; - isChain = false; - } - - void set(PolymorphicAccessStructureListStubRoutineType _stubRoutine, Structure* _base, StructureChain* _chain) - { - stubRoutine = _stubRoutine; - base = _base; - u.chain = _chain; - isChain = true; - } - } list[POLYMORPHIC_LIST_CACHE_SIZE]; - - PolymorphicAccessStructureList(PolymorphicAccessStructureListStubRoutineType stubRoutine, Structure* firstBase) - { - list[0].set(stubRoutine, firstBase); - } - - PolymorphicAccessStructureList(PolymorphicAccessStructureListStubRoutineType stubRoutine, Structure* firstBase, Structure* firstProto) - { - list[0].set(stubRoutine, firstBase, firstProto); - } - - PolymorphicAccessStructureList(PolymorphicAccessStructureListStubRoutineType stubRoutine, Structure* firstBase, StructureChain* firstChain) - { - list[0].set(stubRoutine, firstBase, firstChain); - } - - void derefStructures(int count) - { - for (int i = 0; i < count; ++i) { - PolymorphicStubInfo& info = list[i]; - - ASSERT(info.base); - info.base->deref(); - - if (info.u.proto) { - if (info.isChain) - info.u.chain->deref(); - else - info.u.proto->deref(); - } - } - } - }; - - struct Instruction { - Instruction(Opcode opcode) - { -#if !HAVE(COMPUTED_GOTO) - // We have to initialize one of the pointer members to ensure that - // the entire struct is initialized, when opcode is not a pointer. - u.jsCell = 0; -#endif - u.opcode = opcode; - } - - Instruction(int operand) - { - // We have to initialize one of the pointer members to ensure that - // the entire struct is initialized in 64-bit. - u.jsCell = 0; - u.operand = operand; - } - - Instruction(Structure* structure) { u.structure = structure; } - Instruction(StructureChain* structureChain) { u.structureChain = structureChain; } - Instruction(JSCell* jsCell) { u.jsCell = jsCell; } - Instruction(PolymorphicAccessStructureList* polymorphicStructures) { u.polymorphicStructures = polymorphicStructures; } - - union { - Opcode opcode; - int operand; - Structure* structure; - StructureChain* structureChain; - JSCell* jsCell; - PolymorphicAccessStructureList* polymorphicStructures; - } u; - }; - -} // namespace JSC - -namespace WTF { - - template<> struct VectorTraits<JSC::Instruction> : VectorTraitsBase<true, JSC::Instruction> { }; - -} // namespace WTF - -#endif // Instruction_h |