/*
- * Copyright (C) 2009 Apple Inc. All rights reserved.
+ * Copyright (C) 2009, 2010 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
#include "config.h"
#include "Executable.h"
+#include "BatchedTransitionOptimizer.h"
#include "BytecodeGenerator.h"
#include "CodeBlock.h"
+#include "DFGDriver.h"
+#include "ExecutionHarness.h"
#include "JIT.h"
+#include "JITDriver.h"
+#include "Operations.h"
#include "Parser.h"
-#include "StringBuilder.h"
-#include "Vector.h"
+#include <wtf/Vector.h>
+#include <wtf/text/StringBuilder.h>
namespace JSC {
+const ClassInfo ExecutableBase::s_info = { "Executable", 0, 0, 0, CREATE_METHOD_TABLE(ExecutableBase) };
+
#if ENABLE(JIT)
-NativeExecutable::~NativeExecutable()
+void ExecutableBase::destroy(JSCell* cell)
{
+ static_cast<ExecutableBase*>(cell)->ExecutableBase::~ExecutableBase();
}
#endif
-VPtrHackExecutable::~VPtrHackExecutable()
+void ExecutableBase::clearCode()
{
+#if ENABLE(JIT)
+ m_jitCodeForCall.clear();
+ m_jitCodeForConstruct.clear();
+ m_jitCodeForCallWithArityCheck = MacroAssemblerCodePtr();
+ m_jitCodeForConstructWithArityCheck = MacroAssemblerCodePtr();
+#endif
+ m_numParametersForCall = NUM_PARAMETERS_NOT_COMPILED;
+ m_numParametersForConstruct = NUM_PARAMETERS_NOT_COMPILED;
}
-EvalExecutable::~EvalExecutable()
+#if ENABLE(DFG_JIT)
+Intrinsic ExecutableBase::intrinsic() const
{
- delete m_evalCodeBlock;
+ if (const NativeExecutable* nativeExecutable = jsDynamicCast<const NativeExecutable*>(this))
+ return nativeExecutable->intrinsic();
+ return NoIntrinsic;
}
+#else
+Intrinsic ExecutableBase::intrinsic() const
+{
+ return NoIntrinsic;
+}
+#endif
-ProgramExecutable::~ProgramExecutable()
+const ClassInfo NativeExecutable::s_info = { "NativeExecutable", &ExecutableBase::s_info, 0, 0, CREATE_METHOD_TABLE(NativeExecutable) };
+
+#if ENABLE(JIT)
+void NativeExecutable::destroy(JSCell* cell)
{
- delete m_programCodeBlock;
+ static_cast<NativeExecutable*>(cell)->NativeExecutable::~NativeExecutable();
}
+#endif
-FunctionExecutable::~FunctionExecutable()
+#if ENABLE(DFG_JIT)
+Intrinsic NativeExecutable::intrinsic() const
{
- delete m_codeBlock;
+ return m_intrinsic;
}
+#endif
-JSObject* EvalExecutable::compile(ExecState* exec, ScopeChainNode* scopeChainNode)
+#if ENABLE(JIT)
+// Utility method used for jettisoning code blocks.
+template<typename T>
+static void jettisonCodeBlock(VM& vm, OwnPtr<T>& codeBlock)
{
- int errLine;
- UString errMsg;
- RefPtr<EvalNode> evalNode = exec->globalData().parser->parse<EvalNode>(&exec->globalData(), exec->lexicalGlobalObject()->debugger(), exec, m_source, &errLine, &errMsg);
- if (!evalNode)
- return Error::create(exec, SyntaxError, errMsg, errLine, m_source.provider()->asID(), m_source.provider()->url());
- recordParse(evalNode->features(), evalNode->lineNo(), evalNode->lastLine());
+ ASSERT(JITCode::isOptimizingJIT(codeBlock->getJITType()));
+ ASSERT(codeBlock->alternative());
+ OwnPtr<T> codeBlockToJettison = codeBlock.release();
+ codeBlock = static_pointer_cast<T>(codeBlockToJettison->releaseAlternative());
+ codeBlockToJettison->unlinkIncomingCalls();
+ vm.heap.jettisonDFGCodeBlock(static_pointer_cast<CodeBlock>(codeBlockToJettison.release()));
+}
+#endif
- ScopeChain scopeChain(scopeChainNode);
- JSGlobalObject* globalObject = scopeChain.globalObject();
+const ClassInfo ScriptExecutable::s_info = { "ScriptExecutable", &ExecutableBase::s_info, 0, 0, CREATE_METHOD_TABLE(ScriptExecutable) };
- ASSERT(!m_evalCodeBlock);
- m_evalCodeBlock = new EvalCodeBlock(this, globalObject, source().provider(), scopeChain.localDepth());
- OwnPtr<BytecodeGenerator> generator(new BytecodeGenerator(evalNode.get(), globalObject->debugger(), scopeChain, m_evalCodeBlock->symbolTable(), m_evalCodeBlock));
- generator->generate();
-
- evalNode->destroyData();
- return 0;
+#if ENABLE(JIT)
+void ScriptExecutable::destroy(JSCell* cell)
+{
+ static_cast<ScriptExecutable*>(cell)->ScriptExecutable::~ScriptExecutable();
}
+#endif
-JSObject* ProgramExecutable::checkSyntax(ExecState* exec)
+const ClassInfo EvalExecutable::s_info = { "EvalExecutable", &ScriptExecutable::s_info, 0, 0, CREATE_METHOD_TABLE(EvalExecutable) };
+
+EvalExecutable::EvalExecutable(ExecState* exec, PassRefPtr<CodeCache> codeCache, const SourceCode& source, bool inStrictContext)
+ : ScriptExecutable(exec->vm().evalExecutableStructure.get(), exec, source, inStrictContext)
+ , m_codeCache(codeCache)
{
- int errLine;
- UString errMsg;
- RefPtr<ProgramNode> programNode = exec->globalData().parser->parse<ProgramNode>(&exec->globalData(), exec->lexicalGlobalObject()->debugger(), exec, m_source, &errLine, &errMsg);
- if (!programNode)
- return Error::create(exec, SyntaxError, errMsg, errLine, m_source.provider()->asID(), m_source.provider()->url());
- return 0;
}
-JSObject* ProgramExecutable::compile(ExecState* exec, ScopeChainNode* scopeChainNode)
+void EvalExecutable::destroy(JSCell* cell)
{
- int errLine;
- UString errMsg;
- RefPtr<ProgramNode> programNode = exec->globalData().parser->parse<ProgramNode>(&exec->globalData(), exec->lexicalGlobalObject()->debugger(), exec, m_source, &errLine, &errMsg);
- if (!programNode)
- return Error::create(exec, SyntaxError, errMsg, errLine, m_source.provider()->asID(), m_source.provider()->url());
- recordParse(programNode->features(), programNode->lineNo(), programNode->lastLine());
+ static_cast<EvalExecutable*>(cell)->EvalExecutable::~EvalExecutable();
+}
- ScopeChain scopeChain(scopeChainNode);
- JSGlobalObject* globalObject = scopeChain.globalObject();
-
- ASSERT(!m_programCodeBlock);
- m_programCodeBlock = new ProgramCodeBlock(this, GlobalCode, globalObject, source().provider());
- OwnPtr<BytecodeGenerator> generator(new BytecodeGenerator(programNode.get(), globalObject->debugger(), scopeChain, &globalObject->symbolTable(), m_programCodeBlock));
- generator->generate();
+const ClassInfo ProgramExecutable::s_info = { "ProgramExecutable", &ScriptExecutable::s_info, 0, 0, CREATE_METHOD_TABLE(ProgramExecutable) };
- programNode->destroyData();
- return 0;
+ProgramExecutable::ProgramExecutable(ExecState* exec, const SourceCode& source)
+ : ScriptExecutable(exec->vm().programExecutableStructure.get(), exec, source, false)
+{
}
-void FunctionExecutable::compile(ExecState*, ScopeChainNode* scopeChainNode)
+void ProgramExecutable::destroy(JSCell* cell)
{
- JSGlobalData* globalData = scopeChainNode->globalData;
- RefPtr<FunctionBodyNode> body = globalData->parser->parse<FunctionBodyNode>(globalData, 0, 0, m_source);
- if (m_forceUsesArguments)
- body->setUsesArguments();
- body->finishParsing(m_parameters, m_name);
- recordParse(body->features(), body->lineNo(), body->lastLine());
+ static_cast<ProgramExecutable*>(cell)->ProgramExecutable::~ProgramExecutable();
+}
- ScopeChain scopeChain(scopeChainNode);
- JSGlobalObject* globalObject = scopeChain.globalObject();
+const ClassInfo FunctionExecutable::s_info = { "FunctionExecutable", &ScriptExecutable::s_info, 0, 0, CREATE_METHOD_TABLE(FunctionExecutable) };
- ASSERT(!m_codeBlock);
- m_codeBlock = new FunctionCodeBlock(this, FunctionCode, source().provider(), source().startOffset());
- OwnPtr<BytecodeGenerator> generator(new BytecodeGenerator(body.get(), globalObject->debugger(), scopeChain, m_codeBlock->symbolTable(), m_codeBlock));
- generator->generate();
- m_numParameters = m_codeBlock->m_numParameters;
- ASSERT(m_numParameters);
- m_numVariables = m_codeBlock->m_numVars;
+FunctionExecutable::FunctionExecutable(VM& vm, const SourceCode& source, UnlinkedFunctionExecutable* unlinkedExecutable, unsigned firstLine, unsigned lastLine, unsigned startColumn)
+ : ScriptExecutable(vm.functionExecutableStructure.get(), vm, source, unlinkedExecutable->isInStrictContext())
+ , m_unlinkedExecutable(vm, this, unlinkedExecutable)
+{
+ RELEASE_ASSERT(!source.isNull());
+ ASSERT(source.length());
+ m_firstLine = firstLine;
+ m_lastLine = lastLine;
+ m_startColumn = startColumn;
+}
- body->destroyData();
+void FunctionExecutable::destroy(JSCell* cell)
+{
+ static_cast<FunctionExecutable*>(cell)->FunctionExecutable::~FunctionExecutable();
+}
+
+JSObject* EvalExecutable::compileOptimized(ExecState* exec, JSScope* scope, unsigned bytecodeIndex)
+{
+ ASSERT(exec->vm().dynamicGlobalObject);
+ ASSERT(!!m_evalCodeBlock);
+ JSObject* error = 0;
+ if (m_evalCodeBlock->getJITType() != JITCode::topTierJIT())
+ error = compileInternal(exec, scope, JITCode::nextTierJIT(m_evalCodeBlock->getJITType()), bytecodeIndex);
+ ASSERT(!!m_evalCodeBlock);
+ return error;
}
#if ENABLE(JIT)
+bool EvalExecutable::jitCompile(ExecState* exec)
+{
+ return jitCompileIfAppropriate(exec, m_evalCodeBlock, m_jitCodeForCall, JITCode::bottomTierJIT(), UINT_MAX, JITCompilationCanFail);
+}
+#endif
+
+inline const char* samplingDescription(JITCode::JITType jitType)
+{
+ switch (jitType) {
+ case JITCode::InterpreterThunk:
+ return "Interpreter Compilation (TOTAL)";
+ case JITCode::BaselineJIT:
+ return "Baseline Compilation (TOTAL)";
+ case JITCode::DFGJIT:
+ return "DFG Compilation (TOTAL)";
+ default:
+ RELEASE_ASSERT_NOT_REACHED();
+ return 0;
+ }
+}
-void EvalExecutable::generateJITCode(ExecState* exec, ScopeChainNode* scopeChainNode)
+JSObject* EvalExecutable::compileInternal(ExecState* exec, JSScope* scope, JITCode::JITType jitType, unsigned bytecodeIndex)
{
-#if ENABLE(INTERPRETER)
- ASSERT(scopeChainNode->globalData->canUseJIT());
+ SamplingRegion samplingRegion(samplingDescription(jitType));
+
+#if !ENABLE(JIT)
+ UNUSED_PARAM(jitType);
+ UNUSED_PARAM(bytecodeIndex);
#endif
- CodeBlock* codeBlock = &bytecode(exec, scopeChainNode);
- m_jitCode = JIT::compile(scopeChainNode->globalData, codeBlock);
+ VM* vm = &exec->vm();
+ JSGlobalObject* lexicalGlobalObject = exec->lexicalGlobalObject();
+
+ if (!!m_evalCodeBlock) {
+ OwnPtr<EvalCodeBlock> newCodeBlock = adoptPtr(new EvalCodeBlock(CodeBlock::CopyParsedBlock, *m_evalCodeBlock));
+ newCodeBlock->setAlternative(static_pointer_cast<CodeBlock>(m_evalCodeBlock.release()));
+ m_evalCodeBlock = newCodeBlock.release();
+ } else {
+ UNUSED_PARAM(scope);
+ UNUSED_PARAM(vm);
+ UNUSED_PARAM(lexicalGlobalObject);
+ if (!lexicalGlobalObject->evalEnabled())
+ return throwError(exec, createEvalError(exec, lexicalGlobalObject->evalDisabledErrorMessage()));
+
+ JSObject* exception = 0;
+ UnlinkedEvalCodeBlock* unlinkedEvalCode = lexicalGlobalObject->createEvalCodeBlock(m_codeCache.get(), exec, scope, this, &exception);
+ if (!unlinkedEvalCode)
+ return exception;
+
+ OwnPtr<CodeBlock> previousCodeBlock = m_evalCodeBlock.release();
+ ASSERT((jitType == JITCode::bottomTierJIT()) == !previousCodeBlock);
+ m_unlinkedEvalCodeBlock.set(*vm, this, unlinkedEvalCode);
+ m_evalCodeBlock = adoptPtr(new EvalCodeBlock(this, unlinkedEvalCode, lexicalGlobalObject, source().provider(), scope->localDepth(), previousCodeBlock.release()));
+ m_evalCodeBlock->copyPostParseDataFromAlternative();
+ }
-#if !ENABLE(OPCODE_SAMPLING)
- if (!BytecodeGenerator::dumpsGeneratedCode())
- codeBlock->discardBytecode();
+#if ENABLE(JIT)
+ if (!prepareForExecution(exec, m_evalCodeBlock, m_jitCodeForCall, jitType, bytecodeIndex))
+ return 0;
#endif
+
+#if ENABLE(JIT)
+ Heap::heap(this)->reportExtraMemoryCost(sizeof(*m_evalCodeBlock) + m_jitCodeForCall.size());
+#else
+ Heap::heap(this)->reportExtraMemoryCost(sizeof(*m_evalCodeBlock));
+#endif
+
+ return 0;
}
-void ProgramExecutable::generateJITCode(ExecState* exec, ScopeChainNode* scopeChainNode)
+#if ENABLE(JIT)
+void EvalExecutable::jettisonOptimizedCode(VM& vm)
{
-#if ENABLE(INTERPRETER)
- ASSERT(scopeChainNode->globalData->canUseJIT());
+ jettisonCodeBlock(vm, m_evalCodeBlock);
+ m_jitCodeForCall = m_evalCodeBlock->getJITCode();
+ ASSERT(!m_jitCodeForCallWithArityCheck);
+}
#endif
- CodeBlock* codeBlock = &bytecode(exec, scopeChainNode);
- m_jitCode = JIT::compile(scopeChainNode->globalData, codeBlock);
-#if !ENABLE(OPCODE_SAMPLING)
- if (!BytecodeGenerator::dumpsGeneratedCode())
- codeBlock->discardBytecode();
+void EvalExecutable::visitChildren(JSCell* cell, SlotVisitor& visitor)
+{
+ EvalExecutable* thisObject = jsCast<EvalExecutable*>(cell);
+ ASSERT_GC_OBJECT_INHERITS(thisObject, &s_info);
+ COMPILE_ASSERT(StructureFlags & OverridesVisitChildren, OverridesVisitChildrenWithoutSettingFlag);
+ ASSERT(thisObject->structure()->typeInfo().overridesVisitChildren());
+ ScriptExecutable::visitChildren(thisObject, visitor);
+ if (thisObject->m_evalCodeBlock)
+ thisObject->m_evalCodeBlock->visitAggregate(visitor);
+ visitor.append(&thisObject->m_unlinkedEvalCodeBlock);
+}
+
+void EvalExecutable::unlinkCalls()
+{
+#if ENABLE(JIT)
+ if (!m_jitCodeForCall)
+ return;
+ RELEASE_ASSERT(m_evalCodeBlock);
+ m_evalCodeBlock->unlinkCalls();
#endif
}
-void FunctionExecutable::generateJITCode(ExecState* exec, ScopeChainNode* scopeChainNode)
+void EvalExecutable::clearCode()
+{
+ m_evalCodeBlock.clear();
+ m_unlinkedEvalCodeBlock.clear();
+ Base::clearCode();
+}
+
+JSObject* ProgramExecutable::checkSyntax(ExecState* exec)
+{
+ ParserError error;
+ VM* vm = &exec->vm();
+ JSGlobalObject* lexicalGlobalObject = exec->lexicalGlobalObject();
+ RefPtr<ProgramNode> programNode = parse<ProgramNode>(vm, m_source, 0, Identifier(), JSParseNormal, ProgramNode::isFunctionNode ? JSParseFunctionCode : JSParseProgramCode, error);
+ if (programNode)
+ return 0;
+ ASSERT(error.m_type != ParserError::ErrorNone);
+ return error.toErrorObject(lexicalGlobalObject, m_source);
+}
+
+JSObject* ProgramExecutable::compileOptimized(ExecState* exec, JSScope* scope, unsigned bytecodeIndex)
+{
+ RELEASE_ASSERT(exec->vm().dynamicGlobalObject);
+ ASSERT(!!m_programCodeBlock);
+ JSObject* error = 0;
+ if (m_programCodeBlock->getJITType() != JITCode::topTierJIT())
+ error = compileInternal(exec, scope, JITCode::nextTierJIT(m_programCodeBlock->getJITType()), bytecodeIndex);
+ ASSERT(!!m_programCodeBlock);
+ return error;
+}
+
+#if ENABLE(JIT)
+bool ProgramExecutable::jitCompile(ExecState* exec)
+{
+ return jitCompileIfAppropriate(exec, m_programCodeBlock, m_jitCodeForCall, JITCode::bottomTierJIT(), UINT_MAX, JITCompilationCanFail);
+}
+#endif
+
+JSObject* ProgramExecutable::compileInternal(ExecState* exec, JSScope* scope, JITCode::JITType jitType, unsigned bytecodeIndex)
{
-#if ENABLE(INTERPRETER)
- ASSERT(scopeChainNode->globalData->canUseJIT());
+ SamplingRegion samplingRegion(samplingDescription(jitType));
+
+#if !ENABLE(JIT)
+ UNUSED_PARAM(exec);
+ UNUSED_PARAM(jitType);
+ UNUSED_PARAM(bytecodeIndex);
+#endif
+ if (!!m_programCodeBlock) {
+ OwnPtr<ProgramCodeBlock> newCodeBlock = adoptPtr(new ProgramCodeBlock(CodeBlock::CopyParsedBlock, *m_programCodeBlock));
+ newCodeBlock->setAlternative(static_pointer_cast<CodeBlock>(m_programCodeBlock.release()));
+ m_programCodeBlock = newCodeBlock.release();
+ } else {
+ JSGlobalObject* globalObject = scope->globalObject();
+ m_programCodeBlock = adoptPtr(new ProgramCodeBlock(this, m_unlinkedProgramCodeBlock.get(), globalObject, source().provider(), source().startColumn(), m_programCodeBlock.release()));
+ m_programCodeBlock->copyPostParseDataFromAlternative();
+ }
+
+#if ENABLE(JIT)
+ if (!prepareForExecution(exec, m_programCodeBlock, m_jitCodeForCall, jitType, bytecodeIndex))
+ return 0;
#endif
- CodeBlock* codeBlock = &bytecode(exec, scopeChainNode);
- m_jitCode = JIT::compile(scopeChainNode->globalData, codeBlock);
-#if !ENABLE(OPCODE_SAMPLING)
- if (!BytecodeGenerator::dumpsGeneratedCode())
- codeBlock->discardBytecode();
+#if ENABLE(JIT)
+ Heap::heap(this)->reportExtraMemoryCost(sizeof(*m_programCodeBlock) + m_jitCodeForCall.size());
+#else
+ Heap::heap(this)->reportExtraMemoryCost(sizeof(*m_programCodeBlock));
#endif
+
+ return 0;
}
+#if ENABLE(JIT)
+void ProgramExecutable::jettisonOptimizedCode(VM& vm)
+{
+ jettisonCodeBlock(vm, m_programCodeBlock);
+ m_jitCodeForCall = m_programCodeBlock->getJITCode();
+ ASSERT(!m_jitCodeForCallWithArityCheck);
+}
+#endif
+
+void ProgramExecutable::unlinkCalls()
+{
+#if ENABLE(JIT)
+ if (!m_jitCodeForCall)
+ return;
+ RELEASE_ASSERT(m_programCodeBlock);
+ m_programCodeBlock->unlinkCalls();
#endif
+}
-void FunctionExecutable::markAggregate(MarkStack& markStack)
+int ProgramExecutable::addGlobalVar(JSGlobalObject* globalObject, const Identifier& ident, ConstantMode constantMode, FunctionMode functionMode)
{
- if (m_codeBlock)
- m_codeBlock->markAggregate(markStack);
+ // Try to share the symbolTable if possible
+ SharedSymbolTable* symbolTable = globalObject->symbolTable();
+ UNUSED_PARAM(functionMode);
+ int index = symbolTable->size();
+ SymbolTableEntry newEntry(index, (constantMode == IsConstant) ? ReadOnly : 0);
+ if (functionMode == IsFunctionToSpecialize)
+ newEntry.attemptToWatch();
+ SymbolTable::AddResult result = symbolTable->add(ident.impl(), newEntry);
+ if (!result.isNewEntry) {
+ result.iterator->value.notifyWrite();
+ index = result.iterator->value.getIndex();
+ }
+ return index;
}
-ExceptionInfo* FunctionExecutable::reparseExceptionInfo(JSGlobalData* globalData, ScopeChainNode* scopeChainNode, CodeBlock* codeBlock)
+JSObject* ProgramExecutable::initializeGlobalProperties(VM& vm, CallFrame* callFrame, JSScope* scope)
{
- RefPtr<FunctionBodyNode> newFunctionBody = globalData->parser->parse<FunctionBodyNode>(globalData, 0, 0, m_source);
- if (m_forceUsesArguments)
- newFunctionBody->setUsesArguments();
- newFunctionBody->finishParsing(m_parameters, m_name);
+ RELEASE_ASSERT(scope);
+ JSGlobalObject* globalObject = scope->globalObject();
+ RELEASE_ASSERT(globalObject);
+ ASSERT(&globalObject->vm() == &vm);
+
+ JSObject* exception = 0;
+ UnlinkedProgramCodeBlock* unlinkedCode = globalObject->createProgramCodeBlock(callFrame, this, &exception);
+ if (exception)
+ return exception;
- ScopeChain scopeChain(scopeChainNode);
- JSGlobalObject* globalObject = scopeChain.globalObject();
+ m_unlinkedProgramCodeBlock.set(vm, this, unlinkedCode);
- OwnPtr<CodeBlock> newCodeBlock(new FunctionCodeBlock(this, FunctionCode, source().provider(), source().startOffset()));
- globalData->functionCodeBlockBeingReparsed = newCodeBlock.get();
+ BatchedTransitionOptimizer optimizer(vm, globalObject);
+
+ const UnlinkedProgramCodeBlock::VariableDeclations& variableDeclarations = unlinkedCode->variableDeclarations();
+ const UnlinkedProgramCodeBlock::FunctionDeclations& functionDeclarations = unlinkedCode->functionDeclarations();
+
+ size_t newGlobals = variableDeclarations.size() + functionDeclarations.size();
+ if (!newGlobals)
+ return 0;
+ globalObject->addRegisters(newGlobals);
+ CallFrame* globalExec = globalObject->globalExec();
+
+ for (size_t i = 0; i < functionDeclarations.size(); ++i) {
+ bool propertyDidExist = globalObject->removeDirect(vm, functionDeclarations[i].first); // Newly declared functions overwrite existing properties.
+ UnlinkedFunctionExecutable* unlinkedFunctionExecutable = functionDeclarations[i].second.get();
+ JSValue value = JSFunction::create(globalExec, unlinkedFunctionExecutable->link(vm, m_source, lineNo(), 0), scope);
+ int index = addGlobalVar(globalObject, functionDeclarations[i].first, IsVariable,
+ !propertyDidExist ? IsFunctionToSpecialize : NotFunctionOrNotSpecializable);
+ globalObject->registerAt(index).set(vm, globalObject, value);
+ }
- OwnPtr<BytecodeGenerator> generator(new BytecodeGenerator(newFunctionBody.get(), globalObject->debugger(), scopeChain, newCodeBlock->symbolTable(), newCodeBlock.get()));
- generator->setRegeneratingForExceptionInfo(static_cast<FunctionCodeBlock*>(codeBlock));
- generator->generate();
+ for (size_t i = 0; i < variableDeclarations.size(); ++i) {
+ if (globalObject->hasProperty(globalExec, variableDeclarations[i].first))
+ continue;
+ addGlobalVar(globalObject, variableDeclarations[i].first,
+ (variableDeclarations[i].second & DeclarationStacks::IsConstant) ? IsConstant : IsVariable,
+ NotFunctionOrNotSpecializable);
+ }
+ return 0;
+}
- ASSERT(newCodeBlock->instructionCount() == codeBlock->instructionCount());
+void ProgramExecutable::visitChildren(JSCell* cell, SlotVisitor& visitor)
+{
+ ProgramExecutable* thisObject = jsCast<ProgramExecutable*>(cell);
+ ASSERT_GC_OBJECT_INHERITS(thisObject, &s_info);
+ COMPILE_ASSERT(StructureFlags & OverridesVisitChildren, OverridesVisitChildrenWithoutSettingFlag);
+ ASSERT(thisObject->structure()->typeInfo().overridesVisitChildren());
+ ScriptExecutable::visitChildren(thisObject, visitor);
+ visitor.append(&thisObject->m_unlinkedProgramCodeBlock);
+ if (thisObject->m_programCodeBlock)
+ thisObject->m_programCodeBlock->visitAggregate(visitor);
+}
+
+void ProgramExecutable::clearCode()
+{
+ m_programCodeBlock.clear();
+ m_unlinkedProgramCodeBlock.clear();
+ Base::clearCode();
+}
+
+FunctionCodeBlock* FunctionExecutable::baselineCodeBlockFor(CodeSpecializationKind kind)
+{
+ FunctionCodeBlock* result;
+ if (kind == CodeForCall)
+ result = m_codeBlockForCall.get();
+ else {
+ RELEASE_ASSERT(kind == CodeForConstruct);
+ result = m_codeBlockForConstruct.get();
+ }
+ if (!result)
+ return 0;
+ while (result->alternative())
+ result = static_cast<FunctionCodeBlock*>(result->alternative());
+ RELEASE_ASSERT(result);
+ ASSERT(JITCode::isBaselineCode(result->getJITType()));
+ return result;
+}
+
+JSObject* FunctionExecutable::compileOptimizedForCall(ExecState* exec, JSScope* scope, unsigned bytecodeIndex)
+{
+ RELEASE_ASSERT(exec->vm().dynamicGlobalObject);
+ ASSERT(!!m_codeBlockForCall);
+ JSObject* error = 0;
+ if (m_codeBlockForCall->getJITType() != JITCode::topTierJIT())
+ error = compileForCallInternal(exec, scope, JITCode::nextTierJIT(m_codeBlockForCall->getJITType()), bytecodeIndex);
+ ASSERT(!!m_codeBlockForCall);
+ return error;
+}
+
+JSObject* FunctionExecutable::compileOptimizedForConstruct(ExecState* exec, JSScope* scope, unsigned bytecodeIndex)
+{
+ RELEASE_ASSERT(exec->vm().dynamicGlobalObject);
+ ASSERT(!!m_codeBlockForConstruct);
+ JSObject* error = 0;
+ if (m_codeBlockForConstruct->getJITType() != JITCode::topTierJIT())
+ error = compileForConstructInternal(exec, scope, JITCode::nextTierJIT(m_codeBlockForConstruct->getJITType()), bytecodeIndex);
+ ASSERT(!!m_codeBlockForConstruct);
+ return error;
+}
#if ENABLE(JIT)
-#if ENABLE(INTERPRETER)
- if (globalData->canUseJIT())
+bool FunctionExecutable::jitCompileForCall(ExecState* exec)
+{
+ return jitCompileFunctionIfAppropriate(exec, m_codeBlockForCall, m_jitCodeForCall, m_jitCodeForCallWithArityCheck, JITCode::bottomTierJIT(), UINT_MAX, JITCompilationCanFail);
+}
+
+bool FunctionExecutable::jitCompileForConstruct(ExecState* exec)
+{
+ return jitCompileFunctionIfAppropriate(exec, m_codeBlockForConstruct, m_jitCodeForConstruct, m_jitCodeForConstructWithArityCheck, JITCode::bottomTierJIT(), UINT_MAX, JITCompilationCanFail);
+}
#endif
- {
- JITCode newJITCode = JIT::compile(globalData, newCodeBlock.get(), generatedJITCode().start());
- ASSERT(newJITCode.size() == generatedJITCode().size());
+
+PassOwnPtr<FunctionCodeBlock> FunctionExecutable::produceCodeBlockFor(JSScope* scope, CodeSpecializationKind specializationKind, JSObject*& exception)
+{
+ if (!!codeBlockFor(specializationKind))
+ return adoptPtr(new FunctionCodeBlock(CodeBlock::CopyParsedBlock, *codeBlockFor(specializationKind)));
+
+ VM* vm = scope->vm();
+ JSGlobalObject* globalObject = scope->globalObject();
+ ParserError error;
+ DebuggerMode debuggerMode = globalObject->hasDebugger() ? DebuggerOn : DebuggerOff;
+ ProfilerMode profilerMode = globalObject->hasProfiler() ? ProfilerOn : ProfilerOff;
+ UnlinkedFunctionCodeBlock* unlinkedCodeBlock = m_unlinkedExecutable->codeBlockFor(*vm, scope, m_source, specializationKind, debuggerMode, profilerMode, error);
+ recordParse(m_unlinkedExecutable->features(), m_unlinkedExecutable->hasCapturedVariables(), lineNo(), lastLine(), startColumn());
+
+ if (!unlinkedCodeBlock) {
+ exception = error.toErrorObject(globalObject, m_source);
+ return nullptr;
}
-#endif
- globalData->functionCodeBlockBeingReparsed = 0;
+ SourceProvider* provider = source().provider();
+ unsigned sourceOffset = source().startOffset();
+ unsigned startColumn = source().startColumn();
- return newCodeBlock->extractExceptionInfo();
+ OwnPtr<FunctionCodeBlock> result = adoptPtr(new FunctionCodeBlock(this, unlinkedCodeBlock, globalObject, provider, sourceOffset, startColumn));
+ result->copyPostParseDataFrom(codeBlockFor(specializationKind).get());
+ return result.release();
}
-ExceptionInfo* EvalExecutable::reparseExceptionInfo(JSGlobalData* globalData, ScopeChainNode* scopeChainNode, CodeBlock* codeBlock)
+
+JSObject* FunctionExecutable::compileForCallInternal(ExecState* exec, JSScope* scope, JITCode::JITType jitType, unsigned bytecodeIndex)
{
- RefPtr<EvalNode> newEvalBody = globalData->parser->parse<EvalNode>(globalData, 0, 0, m_source);
+ SamplingRegion samplingRegion(samplingDescription(jitType));
+
+#if !ENABLE(JIT)
+ UNUSED_PARAM(exec);
+ UNUSED_PARAM(jitType);
+ UNUSED_PARAM(exec);
+ UNUSED_PARAM(bytecodeIndex);
+#endif
+ ASSERT((jitType == JITCode::bottomTierJIT()) == !m_codeBlockForCall);
+ JSObject* exception = 0;
+ OwnPtr<FunctionCodeBlock> newCodeBlock = produceCodeBlockFor(scope, CodeForCall, exception);
+ if (!newCodeBlock)
+ return exception;
+
+ newCodeBlock->setAlternative(static_pointer_cast<CodeBlock>(m_codeBlockForCall.release()));
+ m_codeBlockForCall = newCodeBlock.release();
+
+ m_numParametersForCall = m_codeBlockForCall->numParameters();
+ RELEASE_ASSERT(m_numParametersForCall);
- ScopeChain scopeChain(scopeChainNode);
- JSGlobalObject* globalObject = scopeChain.globalObject();
+#if ENABLE(JIT)
+ if (!prepareFunctionForExecution(exec, m_codeBlockForCall, m_jitCodeForCall, m_jitCodeForCallWithArityCheck, jitType, bytecodeIndex, CodeForCall))
+ return 0;
+#endif
- OwnPtr<EvalCodeBlock> newCodeBlock(new EvalCodeBlock(this, globalObject, source().provider(), scopeChain.localDepth()));
+#if ENABLE(JIT)
+ Heap::heap(this)->reportExtraMemoryCost(sizeof(*m_codeBlockForCall) + m_jitCodeForCall.size());
+#else
+ Heap::heap(this)->reportExtraMemoryCost(sizeof(*m_codeBlockForCall));
+#endif
- OwnPtr<BytecodeGenerator> generator(new BytecodeGenerator(newEvalBody.get(), globalObject->debugger(), scopeChain, newCodeBlock->symbolTable(), newCodeBlock.get()));
- generator->setRegeneratingForExceptionInfo(static_cast<EvalCodeBlock*>(codeBlock));
- generator->generate();
+ return 0;
+}
- ASSERT(newCodeBlock->instructionCount() == codeBlock->instructionCount());
+JSObject* FunctionExecutable::compileForConstructInternal(ExecState* exec, JSScope* scope, JITCode::JITType jitType, unsigned bytecodeIndex)
+{
+ SamplingRegion samplingRegion(samplingDescription(jitType));
+
+#if !ENABLE(JIT)
+ UNUSED_PARAM(jitType);
+ UNUSED_PARAM(exec);
+ UNUSED_PARAM(bytecodeIndex);
+#endif
+
+ ASSERT((jitType == JITCode::bottomTierJIT()) == !m_codeBlockForConstruct);
+ JSObject* exception = 0;
+ OwnPtr<FunctionCodeBlock> newCodeBlock = produceCodeBlockFor(scope, CodeForConstruct, exception);
+ if (!newCodeBlock)
+ return exception;
+
+ newCodeBlock->setAlternative(static_pointer_cast<CodeBlock>(m_codeBlockForConstruct.release()));
+ m_codeBlockForConstruct = newCodeBlock.release();
+
+ m_numParametersForConstruct = m_codeBlockForConstruct->numParameters();
+ RELEASE_ASSERT(m_numParametersForConstruct);
#if ENABLE(JIT)
-#if ENABLE(INTERPRETER)
- if (globalData->canUseJIT())
+ if (!prepareFunctionForExecution(exec, m_codeBlockForConstruct, m_jitCodeForConstruct, m_jitCodeForConstructWithArityCheck, jitType, bytecodeIndex, CodeForConstruct))
+ return 0;
#endif
- {
- JITCode newJITCode = JIT::compile(globalData, newCodeBlock.get(), generatedJITCode().start());
- ASSERT(newJITCode.size() == generatedJITCode().size());
- }
+
+#if ENABLE(JIT)
+ Heap::heap(this)->reportExtraMemoryCost(sizeof(*m_codeBlockForConstruct) + m_jitCodeForConstruct.size());
+#else
+ Heap::heap(this)->reportExtraMemoryCost(sizeof(*m_codeBlockForConstruct));
#endif
- return newCodeBlock->extractExceptionInfo();
+ return 0;
}
-void FunctionExecutable::recompile()
-{
- delete m_codeBlock;
- m_codeBlock = 0;
- m_numParameters = NUM_PARAMETERS_NOT_COMPILED;
#if ENABLE(JIT)
- m_jitCode = JITCode();
+void FunctionExecutable::jettisonOptimizedCodeForCall(VM& vm)
+{
+ jettisonCodeBlock(vm, m_codeBlockForCall);
+ m_jitCodeForCall = m_codeBlockForCall->getJITCode();
+ m_jitCodeForCallWithArityCheck = m_codeBlockForCall->getJITCodeWithArityCheck();
+}
+
+void FunctionExecutable::jettisonOptimizedCodeForConstruct(VM& vm)
+{
+ jettisonCodeBlock(vm, m_codeBlockForConstruct);
+ m_jitCodeForConstruct = m_codeBlockForConstruct->getJITCode();
+ m_jitCodeForConstructWithArityCheck = m_codeBlockForConstruct->getJITCodeWithArityCheck();
+}
#endif
+
+void FunctionExecutable::visitChildren(JSCell* cell, SlotVisitor& visitor)
+{
+ FunctionExecutable* thisObject = jsCast<FunctionExecutable*>(cell);
+ ASSERT_GC_OBJECT_INHERITS(thisObject, &s_info);
+ COMPILE_ASSERT(StructureFlags & OverridesVisitChildren, OverridesVisitChildrenWithoutSettingFlag);
+ ASSERT(thisObject->structure()->typeInfo().overridesVisitChildren());
+ ScriptExecutable::visitChildren(thisObject, visitor);
+ if (thisObject->m_codeBlockForCall)
+ thisObject->m_codeBlockForCall->visitAggregate(visitor);
+ if (thisObject->m_codeBlockForConstruct)
+ thisObject->m_codeBlockForConstruct->visitAggregate(visitor);
+ visitor.append(&thisObject->m_unlinkedExecutable);
}
-PassRefPtr<FunctionExecutable> FunctionExecutable::fromGlobalCode(const Identifier& functionName, ExecState* exec, Debugger* debugger, const SourceCode& source, int* errLine, UString* errMsg)
+void FunctionExecutable::clearCodeIfNotCompiling()
{
- RefPtr<ProgramNode> program = exec->globalData().parser->parse<ProgramNode>(&exec->globalData(), debugger, exec, source, errLine, errMsg);
- if (!program)
- return 0;
+ if (isCompiling())
+ return;
+ clearCode();
+}
- StatementNode* exprStatement = program->singleStatement();
- ASSERT(exprStatement);
- ASSERT(exprStatement->isExprStatement());
- if (!exprStatement || !exprStatement->isExprStatement())
- return 0;
+void FunctionExecutable::clearUnlinkedCodeForRecompilationIfNotCompiling()
+{
+ if (isCompiling())
+ return;
+ m_unlinkedExecutable->clearCodeForRecompilation();
+}
+
+void FunctionExecutable::clearCode()
+{
+ m_codeBlockForCall.clear();
+ m_codeBlockForConstruct.clear();
+ Base::clearCode();
+}
+
+void FunctionExecutable::unlinkCalls()
+{
+#if ENABLE(JIT)
+ if (!!m_jitCodeForCall) {
+ RELEASE_ASSERT(m_codeBlockForCall);
+ m_codeBlockForCall->unlinkCalls();
+ }
+ if (!!m_jitCodeForConstruct) {
+ RELEASE_ASSERT(m_codeBlockForConstruct);
+ m_codeBlockForConstruct->unlinkCalls();
+ }
+#endif
+}
- ExpressionNode* funcExpr = static_cast<ExprStatementNode*>(exprStatement)->expr();
- ASSERT(funcExpr);
- ASSERT(funcExpr->isFuncExprNode());
- if (!funcExpr || !funcExpr->isFuncExprNode())
+FunctionExecutable* FunctionExecutable::fromGlobalCode(const Identifier& name, ExecState* exec, Debugger* debugger, const SourceCode& source, JSObject** exception)
+{
+ UnlinkedFunctionExecutable* unlinkedFunction = UnlinkedFunctionExecutable::fromGlobalCode(name, exec, debugger, source, exception);
+ if (!unlinkedFunction)
return 0;
+ unsigned firstLine = source.firstLine() + unlinkedFunction->firstLineOffset();
+ unsigned startOffset = source.startOffset() + unlinkedFunction->startOffset();
+ unsigned startColumn = source.startColumn();
+ unsigned sourceLength = unlinkedFunction->sourceLength();
+ SourceCode functionSource(source.provider(), startOffset, startOffset + sourceLength, firstLine, startColumn);
+ return FunctionExecutable::create(exec->vm(), functionSource, unlinkedFunction, firstLine, unlinkedFunction->lineCount(), startColumn);
+}
- FunctionBodyNode* body = static_cast<FuncExprNode*>(funcExpr)->body();
- ASSERT(body);
- return FunctionExecutable::create(&exec->globalData(), functionName, body->source(), body->usesArguments(), body->parameters(), body->lineNo(), body->lastLine());
+String FunctionExecutable::paramString() const
+{
+ return m_unlinkedExecutable->paramString();
}
-UString FunctionExecutable::paramString() const
+CodeBlockHash ExecutableBase::hashFor(CodeSpecializationKind kind) const
{
- FunctionParameters& parameters = *m_parameters;
- StringBuilder builder;
- for (size_t pos = 0; pos < parameters.size(); ++pos) {
- if (!builder.isEmpty())
- builder.append(", ");
- builder.append(parameters[pos].ustring());
- }
- return builder.build();
+ if (this->classInfo() == &NativeExecutable::s_info)
+ return jsCast<const NativeExecutable*>(this)->hashFor(kind);
+
+ return jsCast<const ScriptExecutable*>(this)->hashFor(kind);
}
-};
+CodeBlockHash NativeExecutable::hashFor(CodeSpecializationKind kind) const
+{
+ if (kind == CodeForCall)
+ return CodeBlockHash(static_cast<unsigned>(bitwise_cast<size_t>(m_function)));
+
+ RELEASE_ASSERT(kind == CodeForConstruct);
+ return CodeBlockHash(static_cast<unsigned>(bitwise_cast<size_t>(m_constructor)));
+}
+CodeBlockHash ScriptExecutable::hashFor(CodeSpecializationKind kind) const
+{
+ return CodeBlockHash(source(), kind);
+}
+}
projects / apple / javascriptcore.git / blobdiff