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Diffstat (limited to 'src/qml/jit/qv4operation.cpp')
| -rw-r--r-- | src/qml/jit/qv4operation.cpp | 770 |
1 files changed, 0 insertions, 770 deletions
diff --git a/src/qml/jit/qv4operation.cpp b/src/qml/jit/qv4operation.cpp deleted file mode 100644 index acd5328fd0..0000000000 --- a/src/qml/jit/qv4operation.cpp +++ /dev/null @@ -1,770 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2018 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtQml module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qv4operation_p.h" -#include "qv4runtimesupport_p.h" - -QT_BEGIN_NAMESPACE -namespace QV4 { -namespace IR { - -OperationBuilder::OperationBuilder(QQmlJS::MemoryPool *graphPool) - : m_graphPool(graphPool) -{} - -OperationBuilder *OperationBuilder::create(QQmlJS::MemoryPool *pool) -{ - return pool->New<OperationBuilder>(pool); -} - -Operation *OperationBuilder::getConstant(Value v) -{ - Type t; - switch (v.type()) { - case Value::Undefined_Type: t = Type::undefinedType(); break; - case Value::Integer_Type: t = Type::int32Type(); break; - case Value::Boolean_Type: t = Type::booleanType(); break; - case Value::Null_Type: t = Type::nullType(); break; - case Value::Double_Type: t = Type::doubleType(); break; - case Value::Managed_Type: t = Type::objectType(); break; - default: - if (v.isEmpty()) - t = Type::emptyType(); - else - Q_UNREACHABLE(); - } - return OperationWithPayload<ConstantPayload>::create( - m_graphPool, Meta::Constant, 0, 0, 0, 1, 0, 0, t, Operation::NoFlags, - ConstantPayload(v)); -} - -Operation *OperationBuilder::getParam(unsigned index, const Function::StringId name) -{ - return OperationWithPayload<ParameterPayload>::create(m_graphPool, Meta::Parameter, - 1, 0, 0, - 1, 0, 0, - Type::anyType(), Operation::NoFlags, - ParameterPayload(index, name)); -} - -Operation *OperationBuilder::getRegion(unsigned nControlInputs) //### cache common operands in the static pool -{ - return Operation::create(m_graphPool, Meta::Region, - 0, 0, uint16_t(nControlInputs), - 0, 0, 1, - Type(), Operation::NoFlags); -} - -Operation *OperationBuilder::getPhi(unsigned nValueInputs) //### cache common operands in the static pool -{ - return Operation::create(m_graphPool, Meta::Phi, - uint16_t(nValueInputs), 0, 1, - 1, 0, 0, - Type::anyType(), Operation::NoFlags); -} - -Operation *OperationBuilder::getEffectPhi(unsigned nEffectInputs) //### cache common operands in the static pool -{ - return Operation::create(m_graphPool, Meta::EffectPhi, - 0, uint16_t(nEffectInputs), 1, - 0, 1, 0, - Type(), Operation::NoFlags); -} - -Operation *OperationBuilder::getUnwindDispatch(unsigned nContinuations, int unwindHandlerOffset, - int fallthroughSuccessor) -{ - return OperationWithPayload<UnwindDispatchPayload>::create( - m_graphPool, Meta::UnwindDispatch, - 0, 1, 1, 0, nContinuations, nContinuations, - Type(), Operation::NoFlags, - UnwindDispatchPayload(unwindHandlerOffset, - fallthroughSuccessor)); -} - -Operation *OperationBuilder::getHandleUnwind(int unwindHandlerOffset) -{ - return OperationWithPayload<HandleUnwindPayload>::create(m_graphPool, Meta::HandleUnwind, - 0, 1, 1, 0, 1, 1, - Type(), Operation::NoFlags, - HandleUnwindPayload(unwindHandlerOffset)); -} - -Operation *OperationBuilder::getFrameState(uint16_t frameSize) -{ - if (m_opFrameState == nullptr) - m_opFrameState = Operation::create(m_graphPool, Meta::FrameState, - frameSize, 0, 0, 0, 0, 1, - Type(), Operation::NoFlags); - else - Q_ASSERT(frameSize == m_opFrameState->valueInputCount()); - - return m_opFrameState; -} - -Operation *OperationBuilder::getStart(uint16_t outputCount) -{ - return Operation::create(m_graphPool, Meta::Start, - 0, 0, 0, - outputCount, 1, 1, - Type(), Operation::NoFlags); -} - -Operation *OperationBuilder::getEnd(uint16_t controlInputCount) -{ - return Operation::create(m_graphPool, Meta::End, - 0, 0, controlInputCount, - 0, 0, 0, - Type(), Operation::NoFlags); -} - -inline Operation *createOperation(Operation::Kind kind, QQmlJS::MemoryPool *staticPool) -{ - auto get = [&](uint16_t inValueCount, uint16_t inEffectCount, uint16_t inControlCount, - uint16_t outValueCount, uint16_t outEffectCount, uint16_t outControlCount, - Type (*typeCreator)(), uint8_t flags) { - return Operation::create(staticPool, kind, inValueCount, inEffectCount, inControlCount, - outValueCount, outEffectCount, outControlCount, typeCreator(), - flags); - }; - - using K = Operation::Kind; - using F = Operation::Flags; - const auto none = &Type::noneType; - const auto any = &Type::anyType; - const auto number = &Type::numberType; - const auto boolean = &Type::booleanType; - - switch (kind) { - case K::Undefined: - return OperationWithPayload<ConstantPayload>::create( - staticPool, K::Undefined, 0, 0, 0, 1, 0, 0, Type::undefinedType(), F::NoFlags, - ConstantPayload(Primitive::undefinedValue())); - case K::Empty: - return OperationWithPayload<ConstantPayload>::create( - staticPool, K::Constant, 0, 0, 0, 1, 0, 0, Type::emptyType(), Operation::NoFlags, - ConstantPayload(Primitive::emptyValue())); - case K::Engine: return get(1, 0, 0, 1, 0, 0, none, F::NoFlags); - case K::CppFrame: return get(1, 0, 0, 1, 0, 0, none, F::NoFlags); - case K::Function: return get(1, 0, 0, 1, 0, 0, none, F::NoFlags); - case K::Jump: return get(0, 0, 1, 0, 0, 1, none, F::NoFlags); - case K::Return: return get(1, 1, 1, 0, 0, 1, none, F::NoFlags); - case K::Branch: return get(1, 0, 1, 0, 0, 2, none, F::HasFrameStateInput | F::NeedsBytecodeOffsets); - case K::IfTrue: return get(0, 0, 1, 0, 0, 1, none, F::NoFlags); - case K::IfFalse: return get(0, 0, 1, 0, 0, 1, none, F::NoFlags); - case K::SelectOutput: return get(3, 1, 1, 1, 1, 1, any, F::NoFlags); - case K::Throw: return get(1, 1, 1, 0, 1, 1, any, F::NeedsBytecodeOffsets); - case K::OnException: return get(0, 0, 1, 0, 0, 1, none, F::NoFlags); - case K::ThrowReferenceError: return get(1, 1, 1, 0, 1, 1, any, F::NeedsBytecodeOffsets); - case K::UnwindToLabel: return get(2, 1, 1, 0, 1, 1, none, F::NoFlags); - case K::LoadRegExp: return get(1, 0, 0, 1, 0, 0, any, F::NoFlags); - case K::ScopedLoad: return get(2, 1, 0, 1, 1, 0, any, F::NoFlags); - case K::ScopedStore: return get(3, 1, 0, 0, 1, 0, none, F::NoFlags); - case K::JSLoadElement: return get(2, 1, 1, 1, 1, 2, any, F::CanThrow); - case K::JSGetLookup: return get(2, 1, 1, 1, 1, 2, any, F::CanThrow); - case K::JSLoadProperty: return get(2, 1, 1, 1, 1, 2, any, F::CanThrow); - case K::JSStoreElement: return get(3, 1, 1, 0, 1, 2, none, F::CanThrow); - case K::JSSetLookupStrict: return get(3, 1, 1, 0, 1, 2, none, F::CanThrow); - case K::JSSetLookupSloppy: return get(3, 1, 1, 0, 1, 2, none, F::CanThrow); - case K::JSStoreProperty: return get(3, 1, 1, 0, 1, 2, none, F::CanThrow); - case K::JSLoadName: return get(1, 1, 1, 1, 1, 2, any, F::CanThrow); - case K::JSLoadGlobalLookup: return get(1, 1, 1, 1, 1, 2, any, F::CanThrow); - case K::JSStoreNameSloppy: return get(2, 1, 1, 0, 1, 2, none, F::CanThrow); - case K::JSStoreNameStrict: return get(2, 1, 1, 0, 1, 2, none, F::CanThrow); - case K::JSLoadSuperProperty: return get(1, 1, 1, 1, 1, 2, any, F::CanThrow); - case K::JSStoreSuperProperty: return get(2, 1, 1, 0, 1, 2, any, F::CanThrow); - case K::JSLoadClosure: return get(1, 1, 0, 1, 1, 0, any, F::Pure); - case K::JSGetIterator: return get(2, 1, 1, 1, 1, 2, any, F::CanThrow); - - // special case: see GraphBuilder::generate_IteratorNext - case K::JSIteratorNext: return get(2, 1, 1, 2, 1, 1, any, F::NoFlags); - - // special case: see GraphBuilder::generate_IteratorNext - case K::JSIteratorNextForYieldStar: return get(3, 1, 1, 2, 1, 1, any, F::NoFlags); - - case K::JSIteratorClose: return get(2, 1, 1, 1, 1, 2, any, F::CanThrow); - case K::JSDeleteProperty: return get(2, 1, 1, 1, 1, 2, any, F::CanThrow); - case K::JSDeleteName: return get(1, 1, 1, 1, 1, 2, any, F::CanThrow); - case K::JSIn: return get(2, 1, 1, 1, 1, 2, any, F::CanThrow); - case K::JSInstanceOf: return get(2, 1, 1, 1, 1, 2, any, F::CanThrow); - case K::QMLLoadQmlContextPropertyLookup: return get(1, 1, 1, 1, 1, 2, any, F::CanThrow); - - case K::JSEqual: return get(2, 1, 1, 1, 1, 2, boolean, F::CanThrow); - case K::JSGreaterThan: return get(2, 1, 1, 1, 1, 2, boolean, F::CanThrow); - case K::JSGreaterEqual: return get(2, 1, 1, 1, 1, 2, boolean, F::CanThrow); - case K::JSLessThan: return get(2, 1, 1, 1, 1, 2, boolean, F::CanThrow); - case K::JSLessEqual: return get(2, 1, 1, 1, 1, 2, boolean, F::CanThrow); - case K::JSStrictEqual: return get(2, 1, 1, 1, 1, 2, boolean, F::CanThrow); - - case K::JSAdd: return get(2, 1, 1, 1, 1, 2, any, F::CanThrow); - case K::JSSubtract: return get(2, 1, 1, 1, 1, 2, number, F::CanThrow); - case K::JSMultiply: return get(2, 1, 1, 1, 1, 2, number, F::CanThrow); - case K::JSDivide: return get(2, 1, 1, 1, 1, 2, number, F::CanThrow); - case K::JSModulo: return get(2, 1, 1, 1, 1, 2, number, F::CanThrow); - case K::JSExponentiate: return get(2, 1, 1, 1, 1, 2, number, F::CanThrow); - - case K::JSBitAnd: return get(2, 1, 1, 1, 1, 2, any, F::CanThrow); - case K::JSBitOr: return get(2, 1, 1, 1, 1, 2, any, F::CanThrow); - case K::JSBitXor: return get(2, 1, 1, 1, 1, 2, any, F::CanThrow); - case K::JSUnsignedShiftRight: return get(2, 1, 1, 1, 1, 2, any, F::CanThrow); - case K::JSShiftRight: return get(2, 1, 1, 1, 1, 2, any, F::CanThrow); - case K::JSShiftLeft: return get(2, 1, 1, 1, 1, 2, any, F::CanThrow); - - case K::JSNegate: return get(1, 1, 1, 1, 1, 2, number, F::CanThrow); - case K::JSToNumber: return get(1, 1, 1, 1, 1, 2, number, F::CanThrow); - case K::Alloca: return get(1, 0, 0, 1, 0, 0, none, F::NoFlags); - - //### it is questionable if VAAlloc/VASeal need effect edges - case K::VAAlloc: return get(1, 1, 0, 1, 1, 0, none, F::NoFlags); - - case K::VAStore: return get(3, 0, 0, 1, 0, 0, none, F::NoFlags); - - case K::JSTypeofName: return get(1, 1, 0, 1, 1, 0, any, F::NoFlags); - case K::JSTypeofValue: return get(1, 0, 0, 1, 0, 0, any, F::Pure); - case K::JSDeclareVar: return get(2, 1, 1, 1, 1, 2, any, F::CanThrow); - case K::JSDestructureRestElement: return get(1, 1, 1, 1, 1, 2, any, F::CanThrow); - - case K::JSCreateCallContext: return get(0, 1, 1, 0, 1, 1, none, F::NoFlags); - case K::JSCreateCatchContext: return get(2, 1, 1, 1, 1, 1, none, F::NoFlags); - case K::JSCreateWithContext: return get(1, 1, 1, 1, 1, 1, any, F::NoFlags); - case K::JSCreateBlockContext: return get(1, 1, 1, 1, 1, 1, none, F::NoFlags); - case K::JSCloneBlockContext: return get(0, 1, 1, 0, 1, 1, none, F::NoFlags); - case K::JSCreateScriptContext: return get(1, 1, 1, 1, 1, 1, none, F::NoFlags); - case K::JSPopScriptContext: return get(0, 1, 1, 1, 1, 1, none, F::NoFlags); - case K::PopContext: return get(0, 1, 1, 0, 1, 1, none, F::NoFlags); - - case K::JSThisToObject: return get(1, 1, 1, 0, 1, 2, any, F::NoFlags); - case K::JSCreateMappedArgumentsObject: return get(0, 1, 0, 1, 1, 0, any, F::NoFlags); - case K::JSCreateUnmappedArgumentsObject: return get(0, 1, 0, 1, 1, 0, any, F::NoFlags); - case K::JSCreateRestParameter: return get(1, 0, 0, 1, 0, 0, any, F::NoFlags); - case K::JSLoadSuperConstructor: return get(1, 1, 1, 1, 1, 2, any, F::NoFlags); - case K::JSThrowOnNullOrUndefined: return get(1, 1, 1, 0, 1, 2, none, F::CanThrow); - case K::JSGetTemplateObject: return get(1, 0, 0, 1, 0, 0, any, F::NoFlags); - case K::StoreThis: return get(1, 1, 0, 1, 1, 0, any, F::NoFlags); - - case K::GetException: return get(0, 1, 0, 1, 1, 0, any, F::NoFlags); - case K::SetException: return get(1, 1, 0, 0, 1, 0, any, F::NoFlags); - - case K::ToObject: return get(1, 1, 1, 1, 1, 2, any, F::CanThrow); - case K::ToBoolean: return get(1, 0, 0, 1, 0, 0, boolean, F::Pure); - - case K::IsEmpty: return get(1, 0, 0, 1, 0, 0, boolean, F::Pure); - - case K::BooleanNot: return get(1, 0, 0, 1, 0, 0, boolean, F::NoFlags); - case K::HasException: return get(1, 1, 0, 1, 1, 0, boolean, F::NoFlags); - - case K::Swap: return get(0, 0, 0, 0, 0, 0, none, F::NoFlags); - case K::Move: return get(1, 0, 0, 1, 0, 0, none, F::NoFlags); - - default: // Non-static operations: - return nullptr; - } -} - -Operation *OperationBuilder::staticOperation(Operation::Kind kind) -{ - static QAtomicPointer<Operation *> ops; - if (Operation **staticOps = ops.load()) - return staticOps[kind]; - - static QAtomicInt initializing = 0; - if (initializing.testAndSetOrdered(0, 1)) { - // This is safe now, because we can only run this piece of code once during the life time - // of the application as we can only change initializing from 0 to 1 once. - Operation **staticOps = new Operation *[Meta::KindsEnd]; - static QQmlJS::MemoryPool pool; - for (int i = 0; i < Meta::KindsEnd; ++i) - staticOps[i] = createOperation(Operation::Kind(i), &pool); - bool success = ops.testAndSetOrdered(nullptr, staticOps); - Q_ASSERT(success); - } else { - // Unfortunately we need to busy wait now until the other thread finishes the static - // initialization; - while (!ops.load()) {} - } - - return ops.load()[kind]; -} - -Operation *OperationBuilder::getJSVarArgsCall(Operation::Kind kind, uint16_t argc) -{ - return Operation::create(m_graphPool, kind, - argc, 1, 1, 1, 1, 2, - Type::anyType(), Operation::CanThrow); -} - -Operation *OperationBuilder::getJSTailCall(uint16_t argc) -{ - return Operation::create(m_graphPool, Meta::JSTailCall, - argc, 1, 1, 0, 0, 1, - Type(), Operation::NoFlags); -} - -Operation *OperationBuilder::getTailCall() -{ - // special varargs call, takes cppframe, engine, func, thisObject, argv, argc - return Operation::create(m_graphPool, Meta::TailCall, - 6, 1, 1, 0, 0, 1, - Type(), Operation::NoFlags); -} - -Operation *OperationBuilder::getCall(Operation::Kind callee) -{ - const bool canThrow = CallPayload::canThrow(callee); - const Type retTy = CallPayload::returnType(callee); - uint16_t nControlInputs = 0; - uint16_t nControlOutputs = 0; - if (canThrow) { - nControlInputs = 1; - nControlOutputs += 2; - } - if (CallPayload::changesContext(callee)) { - nControlInputs = 1; - nControlOutputs = std::max<uint16_t>(nControlInputs, 1); - } - if (callee == Meta::Throw || callee == Meta::ThrowReferenceError || - callee == Meta::JSIteratorNext || callee == Meta::JSIteratorNextForYieldStar) { - nControlInputs = 1; - nControlOutputs = 1; - } - Operation::Flags flags = Operation::NoFlags; - if (canThrow) - flags = Operation::Flags(flags | Operation::CanThrow); - if (CallPayload::isPure(callee)) - flags = Operation::Flags(flags | Operation::Pure); - const uint16_t nEffects = (flags & Operation::Pure) ? 0 : 1; - const uint16_t nValueOutputs = retTy.isNone() ? 0 : 1; - const uint16_t nValueInputs = CallPayload::argc(callee); - - return OperationWithPayload<CallPayload>::create( - m_graphPool, Meta::Call, - nValueInputs, nEffects, nControlInputs, - nValueOutputs, nEffects, nControlOutputs, - retTy, flags, - CallPayload(callee)); -} - -Operation *OperationBuilder::getVASeal(uint16_t nElements) -{ - return Operation::create(m_graphPool, Meta::VASeal, - nElements + 1, 1, 0, 1, 1, 0, - Type::anyType(), Operation::NoFlags); -} - -QString Operation::debugString() const -{ - switch (kind()) { - - case Meta::Constant: - return QStringLiteral("Constant[%1]").arg(ConstantPayload::get(*this)->debugString()); - case Meta::Parameter: - return QStringLiteral("Parameter[%1]").arg(ParameterPayload::get(*this)->debugString()); - case Meta::Call: - return QStringLiteral("Call[%1]").arg(CallPayload::get(*this)->debugString()); - case Meta::UnwindDispatch: - return QStringLiteral("UnwindDispatch[%1]").arg(UnwindDispatchPayload::get(*this) - ->debugString()); - case Meta::HandleUnwind: - return QStringLiteral("HandleUnwind[%1]").arg(HandleUnwindPayload::get(*this) - ->debugString()); - - default: - return QString::fromLatin1(QMetaEnum::fromType<Meta::OpKind>().valueToKey(kind())); - } -} - -QString ConstantPayload::debugString() const -{ - return debugString(m_value); -} - -QString ConstantPayload::debugString(QV4::Value v) -{ - if (v.isManaged()) - return QString::asprintf("Ptr: %p", v.heapObject()); - if (v.isEmpty()) - return QStringLiteral("empty"); - return v.toQStringNoThrow(); -} - -QString ParameterPayload::debugString() const -{ - return QStringLiteral("%1").arg(m_index); -} - -QString UnwindDispatchPayload::debugString() const -{ - return QStringLiteral("%1, %2").arg(QString::number(m_fallthroughSuccessor), - QString::number(m_unwindHandlerOffset)); -} - -QString HandleUnwindPayload::debugString() const -{ - return QStringLiteral("%1").arg(m_unwindHandlerOffset); -} - -static Type translateType(RuntimeSupport::ArgumentType t) -{ - switch (t) { - case RuntimeSupport::ArgumentType::Int: return Type::int32Type(); - case RuntimeSupport::ArgumentType::Bool: return Type::booleanType(); - case RuntimeSupport::ArgumentType::Void: return Type(); - case RuntimeSupport::ArgumentType::Engine: return Type::rawPointerType(); - case RuntimeSupport::ArgumentType::ValueRef: return Type::anyType(); - case RuntimeSupport::ArgumentType::ValueArray: return Type::anyType(); - case RuntimeSupport::ArgumentType::ReturnedValue: return Type::anyType(); - default: Q_UNREACHABLE(); - } -} - -template<template<typename Operation> class M /* MetaOperation */, typename ReturnValue> -static ReturnValue operateOnRuntimeCall(Operation::Kind kind, bool abortOnMissingCall = true) -{ - using K = Operation::Kind; - using R = Runtime; - - switch (kind) { - case K::Throw: return M<R::ThrowException>::doIt(); - case K::ThrowReferenceError: return M<R::ThrowReferenceError>::doIt(); - - case K::JSEqual: return M<R::CompareEqual>::doIt(); - case K::JSGreaterThan: return M<R::CompareGreaterThan>::doIt(); - case K::JSGreaterEqual: return M<R::CompareGreaterEqual>::doIt(); - case K::JSLessThan: return M<R::CompareLessThan>::doIt(); - case K::JSLessEqual: return M<R::CompareLessEqual>::doIt(); - case K::JSStrictEqual: return M<R::CompareStrictEqual>::doIt(); - - case K::JSBitAnd: return M<R::BitAnd>::doIt(); - case K::JSBitOr: return M<R::BitOr>::doIt(); - case K::JSBitXor: return M<R::BitXor>::doIt(); - case K::JSUnsignedShiftRight: return M<R::UShr>::doIt(); - case K::JSShiftRight: return M<R::Shr>::doIt(); - case K::JSShiftLeft: return M<R::Shl>::doIt(); - - case K::JSAdd: return M<R::Add>::doIt(); - case K::JSSubtract: return M<R::Sub>::doIt(); - case K::JSMultiply: return M<R::Mul>::doIt(); - case K::JSDivide: return M<R::Div>::doIt(); - case K::JSModulo: return M<R::Mod>::doIt(); - case K::JSExponentiate: return M<R::Exp>::doIt(); - - case K::ToBoolean: return M<R::ToBoolean>::doIt(); - case K::ToObject: return M<R::ToObject>::doIt(); - - case K::JSNegate: return M<R::UMinus>::doIt(); - case K::JSToNumber: return M<R::ToNumber>::doIt(); - - case K::JSLoadName: return M<R::LoadName>::doIt(); - case K::JSLoadElement: return M<R::LoadElement>::doIt(); - case K::JSStoreElement: return M<R::StoreElement>::doIt(); - case K::JSGetLookup: return M<R::GetLookup>::doIt(); - case K::JSSetLookupStrict: return M<R::SetLookupStrict>::doIt(); - case K::JSSetLookupSloppy: return M<R::SetLookupSloppy>::doIt(); - case K::JSLoadProperty: return M<R::LoadProperty>::doIt(); - case K::JSStoreProperty: return M<R::StoreProperty>::doIt(); - case K::JSLoadGlobalLookup: return M<R::LoadGlobalLookup>::doIt(); - case K::JSStoreNameSloppy: return M<R::StoreNameSloppy>::doIt(); - case K::JSStoreNameStrict: return M<R::StoreNameStrict>::doIt(); - case K::JSLoadSuperProperty: return M<R::LoadSuperProperty>::doIt(); - case K::JSStoreSuperProperty: return M<R::StoreSuperProperty>::doIt(); - case K::JSLoadClosure: return M<R::Closure>::doIt(); - case K::JSGetIterator: return M<R::GetIterator>::doIt(); - case K::JSIteratorNext: return M<R::IteratorNext>::doIt(); - case K::JSIteratorNextForYieldStar: return M<R::IteratorNextForYieldStar>::doIt(); - case K::JSIteratorClose: return M<R::IteratorClose>::doIt(); - case K::JSDeleteProperty: return M<R::DeleteProperty>::doIt(); - case K::JSDeleteName: return M<R::DeleteName>::doIt(); - case K::JSIn: return M<R::In>::doIt(); - case K::JSInstanceOf: return M<R::Instanceof>::doIt(); - case K::QMLLoadQmlContextPropertyLookup: return M<R::LoadQmlContextPropertyLookup>::doIt(); - - case K::JSTypeofName: return M<R::TypeofName>::doIt(); - case K::JSTypeofValue: return M<R::TypeofValue>::doIt(); - case K::JSDeclareVar: return M<R::DeclareVar>::doIt(); - case K::JSDestructureRestElement: return M<R::DestructureRestElement>::doIt(); - case K::JSThisToObject: return M<R::ConvertThisToObject>::doIt(); - case K::JSCreateMappedArgumentsObject: return M<R::CreateMappedArgumentsObject>::doIt(); - case K::JSCreateUnmappedArgumentsObject: return M<R::CreateUnmappedArgumentsObject>::doIt(); - case K::JSCreateRestParameter: return M<R::CreateRestParameter>::doIt(); - case K::JSLoadSuperConstructor: return M<R::LoadSuperConstructor>::doIt(); - case K::JSThrowOnNullOrUndefined: return M<R::ThrowOnNullOrUndefined>::doIt(); - - case K::JSCreateCallContext: return M<R::PushCallContext>::doIt(); - case K::JSCreateCatchContext: return M<R::PushCatchContext>::doIt(); - case K::JSCreateWithContext: return M<R::PushWithContext>::doIt(); - case K::JSCreateBlockContext: return M<R::PushBlockContext>::doIt(); - case K::JSCloneBlockContext: return M<R::CloneBlockContext>::doIt(); - case K::JSCreateScriptContext: return M<R::PushScriptContext>::doIt(); - case K::JSPopScriptContext: return M<R::PopScriptContext>::doIt(); - - case K::LoadRegExp: return M<R::RegexpLiteral>::doIt(); - case K::JSGetTemplateObject: return M<R::GetTemplateObject>::doIt(); - - case K::JSCallName: return M<R::CallName>::doIt(); - case K::JSCallValue: return M<R::CallValue>::doIt(); - case K::JSCallElement: return M<R::CallElement>::doIt(); - case K::JSCallLookup: return M<R::CallPropertyLookup>::doIt(); - case K::JSCallProperty: return M<R::CallProperty>::doIt(); - case K::JSCallGlobalLookup: return M<R::CallGlobalLookup>::doIt(); - case K::JSCallPossiblyDirectEval: return M<R::CallPossiblyDirectEval>::doIt(); - case K::JSCallWithReceiver: return M<R::CallWithReceiver>::doIt(); - case K::JSDefineObjectLiteral: return M<R::ObjectLiteral>::doIt(); - case K::JSDefineArray: return M<R::ArrayLiteral>::doIt(); - case K::JSCallWithSpread: return M<R::CallWithSpread>::doIt(); - case K::JSConstruct: return M<R::Construct>::doIt(); - case K::JSConstructWithSpread: return M<R::ConstructWithSpread>::doIt(); - case K::JSTailCall: return M<R::TailCall>::doIt(); - case K::JSCreateClass: return M<R::CreateClass>::doIt(); - default: - if (abortOnMissingCall) - Q_UNREACHABLE(); - else - return ReturnValue(); - } -} - -template<typename Method> -struct IsRuntimeMethodOperation -{ - static constexpr bool doIt() { return true; } -}; - -bool CallPayload::isRuntimeCall(Operation::Kind m) -{ - return operateOnRuntimeCall<IsRuntimeMethodOperation, bool>(m, false); -} - -QString CallPayload::debugString() const -{ - return QString::fromLatin1(QMetaEnum::fromType<Meta::OpKind>().valueToKey(m_callee)); -} - -template<typename Method> -struct MethodArgcOperation -{ - static constexpr unsigned doIt() { return RuntimeSupport::argumentCount<Method>(); } -}; - -unsigned CallPayload::argc(Operation::Kind callee) -{ - return operateOnRuntimeCall<MethodArgcOperation, unsigned>(callee); -} - -template<typename Method> struct MethodArg1TyOperation { static constexpr RuntimeSupport::ArgumentType doIt() { return RuntimeSupport::arg1Type<Method>(); } }; -template<typename Method> struct MethodArg2TyOperation { static constexpr RuntimeSupport::ArgumentType doIt() { return RuntimeSupport::arg2Type<Method>(); } }; -template<typename Method> struct MethodArg3TyOperation { static constexpr RuntimeSupport::ArgumentType doIt() { return RuntimeSupport::arg3Type<Method>(); } }; -template<typename Method> struct MethodArg4TyOperation { static constexpr RuntimeSupport::ArgumentType doIt() { return RuntimeSupport::arg4Type<Method>(); } }; -template<typename Method> struct MethodArg5TyOperation { static constexpr RuntimeSupport::ArgumentType doIt() { return RuntimeSupport::arg5Type<Method>(); } }; -template<typename Method> struct MethodArg6TyOperation { static constexpr RuntimeSupport::ArgumentType doIt() { return RuntimeSupport::arg6Type<Method>(); } }; - -static RuntimeSupport::ArgumentType untranslatedArgumentType(Operation::Kind m, unsigned arg) -{ - if (m == Meta::JSTailCall) { - if (arg < 4) - return RuntimeSupport::ArgumentType::ValueRef; - else - return RuntimeSupport::ArgumentType::Invalid; - } - - switch (arg) { - case 0: return operateOnRuntimeCall<MethodArg1TyOperation, RuntimeSupport::ArgumentType>(m); - case 1: return operateOnRuntimeCall<MethodArg2TyOperation, RuntimeSupport::ArgumentType>(m); - case 2: return operateOnRuntimeCall<MethodArg3TyOperation, RuntimeSupport::ArgumentType>(m); - case 3: return operateOnRuntimeCall<MethodArg4TyOperation, RuntimeSupport::ArgumentType>(m); - case 4: return operateOnRuntimeCall<MethodArg5TyOperation, RuntimeSupport::ArgumentType>(m); - case 5: return operateOnRuntimeCall<MethodArg6TyOperation, RuntimeSupport::ArgumentType>(m); - default: return RuntimeSupport::ArgumentType::Invalid; - } -} - -bool CallPayload::needsStorageOnJSStack(Operation::Kind m, unsigned arg, const Operation *op, - Type nodeType) -{ - auto argTy = untranslatedArgumentType(m, arg); - if (argTy == RuntimeSupport::ArgumentType::ValueArray) - return true; - if (argTy != RuntimeSupport::ArgumentType::ValueRef) - return false; - - if (op->kind() == Meta::Constant) - return true; - - return !nodeType.isObject() && !nodeType.isRawPointer() && !nodeType.isAny(); -} - -template<typename Method> -struct MethodRetTyOperation -{ - static constexpr RuntimeSupport::ArgumentType doIt() { return RuntimeSupport::retType<Method>(); } -}; - -Type CallPayload::returnType(Operation::Kind m) -{ - if (m == Meta::JSTailCall) - return Type(); - - auto t = operateOnRuntimeCall<MethodRetTyOperation, RuntimeSupport::ArgumentType>(m); - return translateType(t); -} - -static int firstArgumentPositionForType(Operation::Kind m, RuntimeSupport::ArgumentType type) -{ - if (operateOnRuntimeCall<MethodArg1TyOperation, RuntimeSupport::ArgumentType>(m) == type) - return 1; - if (operateOnRuntimeCall<MethodArg2TyOperation, RuntimeSupport::ArgumentType>(m) == type) - return 2; - if (operateOnRuntimeCall<MethodArg3TyOperation, RuntimeSupport::ArgumentType>(m) == type) - return 3; - if (operateOnRuntimeCall<MethodArg4TyOperation, RuntimeSupport::ArgumentType>(m) == type) - return 4; - if (operateOnRuntimeCall<MethodArg5TyOperation, RuntimeSupport::ArgumentType>(m) == type) - return 5; - if (operateOnRuntimeCall<MethodArg6TyOperation, RuntimeSupport::ArgumentType>(m) == type) - return 6; - return -1; -} - -unsigned CallPayload::varArgsStart(Operation::Kind m) -{ - if (m == Meta::JSTailCall) - return 4 - 1; - - int pos = firstArgumentPositionForType(m, RuntimeSupport::ArgumentType::ValueArray) - 1; - Q_ASSERT(pos >= 0); - return pos; -} - -bool CallPayload::isVarArgsCall(Operation::Kind m) -{ - if (m == Meta::JSTailCall) - return true; - if (lastArgumentIsOutputValue(m)) - return false; - return firstArgumentPositionForType(m, RuntimeSupport::ArgumentType::ValueArray) != -1; -} - -bool CallPayload::isVarArgsCall() const -{ - return isVarArgsCall(m_callee); -} - -template<typename Method> -struct MethodsLastArgumentIsOutputValue -{ - static constexpr bool doIt() { return Method::lastArgumentIsOutputValue; } -}; - -bool CallPayload::lastArgumentIsOutputValue(Operation::Kind m) -{ - return operateOnRuntimeCall<MethodsLastArgumentIsOutputValue, bool>(m); -} - -template<typename Method> -struct MethodChangesContext -{ - static constexpr bool doIt() { return Method::changesContext; } -}; - -bool CallPayload::changesContext(Operation::Kind m) -{ - return operateOnRuntimeCall<MethodChangesContext, bool>(m); -} - -template<typename Method> -struct MethodIsPure -{ - static constexpr bool doIt() { return Method::pure; } -}; - -bool CallPayload::isPure(Operation::Kind m) -{ - return operateOnRuntimeCall<MethodIsPure, bool>(m); -} - -template<typename Method> -struct MethodCanThrow -{ - static constexpr bool doIt() { return Method::throws; } -}; - -bool CallPayload::canThrow(Operation::Kind m) -{ - switch (m) { - case Meta::Throw: Q_FALLTHROUGH(); - case Meta::ThrowReferenceError: - // the execution path following these instructions is already linked up to the exception handler - return false; - case Meta::JSIteratorNext: Q_FALLTHROUGH(); - case Meta::JSIteratorNextForYieldStar: - // special case: see GraphBuilder::generate_IteratorNext - return false; - default: - return operateOnRuntimeCall<MethodCanThrow, bool>(m); - } -} - -bool CallPayload::takesEngineAsArg(Operation::Kind m, int arg) -{ - return untranslatedArgumentType(m, arg) == RuntimeSupport::ArgumentType::Engine; -} - -bool CallPayload::takesFunctionAsArg(Operation::Kind m, int arg) -{ - return untranslatedArgumentType(m, arg) == RuntimeSupport::ArgumentType::Function; -} - -bool CallPayload::takesFrameAsArg(Operation::Kind m, int arg) -{ - return untranslatedArgumentType(m, arg) == RuntimeSupport::ArgumentType::Frame; -} - -template<typename Method> -struct GetMethodPtr -{ - static constexpr void *doIt() { return reinterpret_cast<void *>(&Method::call); } -}; - -void *CallPayload::getMethodPtr(Operation::Kind m) -{ - return operateOnRuntimeCall<GetMethodPtr, void *>(m); -} - -} // IR namespace -} // QV4 namespace -QT_END_NAMESPACE |