Remove now unused files

Remove all files from the old compiler pipeline that are now
unused. This includes the whole IR, JIT code generation,
and the old Moth Isel.

Change-Id: I50d06abfbcf0e9755a54ed94638f8bb74f9512b1
Reviewed-by: Erik Verbruggen <erik.verbruggen@qt.io>

1 files changed, 0 insertions, 1851 deletions

diff --git a/src/qml/jit/qv4assembler_p.h b/src/qml/jit/qv4assembler_p.h
deleted file mode 100644
index 9e38696d7a..0000000000
--- a/src/qml/jit/qv4assembler_p.h
+++ /dev/null
@@ -1,1851 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 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.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-#ifndef QV4ASSEMBLER_P_H
-#define QV4ASSEMBLER_P_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists purely as an
-// implementation detail.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include "private/qv4global_p.h"
-#include "private/qv4jsir_p.h"
-#include "private/qv4isel_p.h"
-#include "private/qv4isel_util_p.h"
-#include "private/qv4value_p.h"
-#include "private/qv4context_p.h"
-#include "private/qv4engine_p.h"
-#include "private/qv4writebarrier_p.h"
-#include "qv4targetplatform_p.h"
-
-#include <config.h>
-#include <wtf/Vector.h>
-
-#include <climits>
-
-#if ENABLE(ASSEMBLER)
-
-#include <assembler/MacroAssembler.h>
-#include <assembler/MacroAssemblerCodeRef.h>
-
-QT_BEGIN_NAMESPACE
-
-namespace QV4 {
-namespace JIT {
-
-struct CompilationUnit : public QV4::CompiledData::CompilationUnit
-{
-    virtual ~CompilationUnit();
-
-#if !defined(V4_BOOTSTRAP)
-    void linkBackendToEngine(QV4::ExecutionEngine *engine) Q_DECL_OVERRIDE;
-    bool memoryMapCode(QString *errorString) Q_DECL_OVERRIDE;
-#endif
-    void prepareCodeOffsetsForDiskStorage(CompiledData::Unit *unit) Q_DECL_OVERRIDE;
-    bool saveCodeToDisk(QIODevice *device, const CompiledData::Unit *unit, QString *errorString) Q_DECL_OVERRIDE;
-
-    // Coderef + execution engine
-
-    QVector<JSC::MacroAssemblerCodeRef> codeRefs;
-};
-
-template <typename PlatformAssembler, TargetOperatingSystemSpecialization Specialization>
-struct AssemblerTargetConfiguration
-{
-    typedef JSC::MacroAssembler<PlatformAssembler> MacroAssembler;
-    typedef TargetPlatform<PlatformAssembler, Specialization> Platform;
-    // More things coming here in the future, such as Target OS
-};
-
-#if CPU(ARM_THUMB2)
-typedef JSC::MacroAssemblerARMv7 DefaultPlatformMacroAssembler;
-typedef AssemblerTargetConfiguration<DefaultPlatformMacroAssembler, NoOperatingSystemSpecialization> DefaultAssemblerTargetConfiguration;
-#elif CPU(ARM64)
-typedef JSC::MacroAssemblerARM64 DefaultPlatformMacroAssembler;
-typedef AssemblerTargetConfiguration<DefaultPlatformMacroAssembler, NoOperatingSystemSpecialization> DefaultAssemblerTargetConfiguration;
-#elif CPU(ARM_TRADITIONAL)
-typedef JSC::MacroAssemblerARM DefaultPlatformMacroAssembler;
-typedef AssemblerTargetConfiguration<DefaultPlatformMacroAssembler, NoOperatingSystemSpecialization> DefaultAssemblerTargetConfiguration;
-#elif CPU(MIPS)
-typedef JSC::MacroAssemblerMIPS DefaultPlatformMacroAssembler;
-typedef AssemblerTargetConfiguration<DefaultPlatformMacroAssembler, NoOperatingSystemSpecialization> DefaultAssemblerTargetConfiguration;
-#elif CPU(X86)
-typedef JSC::MacroAssemblerX86 DefaultPlatformMacroAssembler;
-typedef AssemblerTargetConfiguration<DefaultPlatformMacroAssembler, NoOperatingSystemSpecialization> DefaultAssemblerTargetConfiguration;
-#elif CPU(X86_64)
-typedef JSC::MacroAssemblerX86_64 DefaultPlatformMacroAssembler;
-
-#if OS(WINDOWS)
-typedef AssemblerTargetConfiguration<DefaultPlatformMacroAssembler, WindowsSpecialization> DefaultAssemblerTargetConfiguration;
-#else
-typedef AssemblerTargetConfiguration<DefaultPlatformMacroAssembler, NoOperatingSystemSpecialization> DefaultAssemblerTargetConfiguration;
-#endif
-
-#elif CPU(SH4)
-typedef JSC::MacroAssemblerSH4 DefaultPlatformMacroAssembler;
-typedef AssemblerTargetConfiguration<DefaultPlatformMacroAssembler, NoOperatingSystemSpecialization> DefaultAssemblerTargetConfiguration;
-#endif
-
-#define isel_stringIfyx(s) #s
-#define isel_stringIfy(s) isel_stringIfyx(s)
-
-#define generateRuntimeCall(as, t, function, ...) \
-    as->generateFunctionCallImp(Runtime::Method_##function##_NeedsExceptionCheck, t, "Runtime::" isel_stringIfy(function), typename JITAssembler::RuntimeCall(QV4::Runtime::function), __VA_ARGS__)
-
-
-template <typename JITAssembler, typename MacroAssembler, typename TargetPlatform, int RegisterSize>
-struct RegisterSizeDependentAssembler
-{
-};
-
-template <typename JITAssembler, typename MacroAssembler, typename TargetPlatform>
-struct RegisterSizeDependentAssembler<JITAssembler, MacroAssembler, TargetPlatform, 4>
-{
-    using RegisterID = typename JITAssembler::RegisterID;
-    using FPRegisterID = typename JITAssembler::FPRegisterID;
-    using RelationalCondition = typename JITAssembler::RelationalCondition;
-    using ResultCondition = typename JITAssembler::ResultCondition;
-    using Address = typename JITAssembler::Address;
-    using Pointer = typename JITAssembler::Pointer;
-    using TrustedImm32 = typename JITAssembler::TrustedImm32;
-    using TrustedImm64 = typename JITAssembler::TrustedImm64;
-    using Jump = typename JITAssembler::Jump;
-    using Label = typename JITAssembler::Label;
-    using ValueTypeInternal = Value::ValueTypeInternal_32;
-    using TargetPrimitive = TargetPrimitive32;
-
-    static void emitSetGrayBit(JITAssembler *as, RegisterID base)
-    {
-        bool returnValueUsed = (base == TargetPlatform::ReturnValueRegister);
-
-        as->push(TargetPlatform::EngineRegister); // free up one register for work
-
-        RegisterID grayBitmap = returnValueUsed ? TargetPlatform::ScratchRegister : TargetPlatform::ReturnValueRegister;
-        as->move(base, grayBitmap);
-        Q_ASSERT(base != grayBitmap);
-        as->urshift32(TrustedImm32(Chunk::ChunkShift), grayBitmap);
-        as->lshift32(TrustedImm32(Chunk::ChunkShift), grayBitmap);
-        Q_STATIC_ASSERT(offsetof(Chunk, grayBitmap) == 0);
-
-        RegisterID index = base;
-        as->move(base, index);
-        as->sub32(grayBitmap, index);
-        as->urshift32(TrustedImm32(Chunk::SlotSizeShift), index);
-        RegisterID grayIndex = TargetPlatform::EngineRegister;
-        as->move(index, grayIndex);
-        as->urshift32(TrustedImm32(Chunk::BitShift), grayIndex);
-        as->lshift32(TrustedImm32(2), grayIndex); // 4 bytes per quintptr
-        as->add32(grayIndex, grayBitmap);
-        as->and32(TrustedImm32(Chunk::Bits - 1), index);
-
-        RegisterID bit = TargetPlatform::EngineRegister;
-        as->move(TrustedImm32(1), bit);
-        as->lshift32(index, bit);
-
-        as->load32(Pointer(grayBitmap, 0), index);
-        as->or32(bit, index);
-        as->store32(index, Pointer(grayBitmap, 0));
-
-        as->pop(TargetPlatform::EngineRegister);
-    }
-
-#if WRITEBARRIER(none)
-    static Q_ALWAYS_INLINE void emitWriteBarrier(JITAssembler *, Address) {}
-#endif
-
-    static void loadDouble(JITAssembler *as, Address addr, FPRegisterID dest)
-    {
-        as->MacroAssembler::loadDouble(addr, dest);
-    }
-
-    static void storeDouble(JITAssembler *as, FPRegisterID source, Address addr, WriteBarrier::Type barrier)
-    {
-        as->MacroAssembler::storeDouble(source, addr);
-        if (WriteBarrier::isRequired<WriteBarrier::Primitive>() && barrier == WriteBarrier::Barrier)
-            emitWriteBarrier(as, addr);
-    }
-
-    static void storeDouble(JITAssembler *as, FPRegisterID source, IR::Expr* target)
-    {
-        WriteBarrier::Type barrier;
-        Pointer ptr = as->loadAddressForWriting(TargetPlatform::ScratchRegister, target, &barrier);
-        as->storeDouble(source, ptr, barrier);
-    }
-
-    static void storeValue(JITAssembler *as, TargetPrimitive value, Address destination, WriteBarrier::Type barrier)
-    {
-        as->store32(TrustedImm32(value.value()), destination);
-        destination.offset += 4;
-        as->store32(TrustedImm32(value.tag()), destination);
-        if (WriteBarrier::isRequired<WriteBarrier::Primitive>() && barrier == WriteBarrier::Barrier)
-            emitWriteBarrier(as, destination);
-    }
-
-    template <typename Source, typename Destination>
-    static void copyValueViaRegisters(JITAssembler *as, Source source, Destination destination, WriteBarrier::Type barrier)
-    {
-        as->loadDouble(source, TargetPlatform::FPGpr0);
-        // We need to pass NoBarrier to storeDouble and call emitWriteBarrier ourselves, as the
-        // code in storeDouble assumes the type we're storing is actually a double, something
-        // that isn't always the case here.
-        as->storeDouble(TargetPlatform::FPGpr0, destination, WriteBarrier::NoBarrier);
-        if (WriteBarrier::isRequired<WriteBarrier::Unknown>() && barrier == WriteBarrier::Barrier)
-            emitWriteBarrier(as, destination);
-    }
-
-    static void loadDoubleConstant(JITAssembler *as, IR::Const *c, FPRegisterID target)
-    {
-        as->MacroAssembler::loadDouble(as->loadConstant(c, TargetPlatform::ScratchRegister), target);
-    }
-
-    static void storeReturnValue(JITAssembler *as, FPRegisterID dest)
-    {
-        as->moveIntsToDouble(TargetPlatform::LowReturnValueRegister, TargetPlatform::HighReturnValueRegister, dest, TargetPlatform::FPGpr0);
-    }
-
-    static void storeReturnValue(JITAssembler *as, const Pointer &dest, WriteBarrier::Type barrier)
-    {
-        Address destination = dest;
-        as->store32(TargetPlatform::LowReturnValueRegister, destination);
-        destination.offset += 4;
-        as->store32(TargetPlatform::HighReturnValueRegister, destination);
-        if (WriteBarrier::isRequired<WriteBarrier::Unknown>() && barrier == WriteBarrier::Barrier)
-            emitWriteBarrier(as, dest);
-    }
-
-    static void setFunctionReturnValueFromTemp(JITAssembler *as, IR::Temp *t)
-    {
-        const auto lowReg = TargetPlatform::LowReturnValueRegister;
-        const auto highReg = TargetPlatform::HighReturnValueRegister;
-
-        if (t->kind == IR::Temp::PhysicalRegister) {
-            switch (t->type) {
-            case IR::DoubleType:
-                as->moveDoubleToInts((FPRegisterID) t->index, lowReg, highReg);
-                break;
-            case IR::UInt32Type: {
-                RegisterID srcReg = (RegisterID) t->index;
-                Jump intRange = as->branch32(JITAssembler::GreaterThanOrEqual, srcReg, TrustedImm32(0));
-                as->convertUInt32ToDouble(srcReg, TargetPlatform::FPGpr0, TargetPlatform::ReturnValueRegister);
-                as->moveDoubleToInts(TargetPlatform::FPGpr0, lowReg, highReg);
-                Jump done = as->jump();
-                intRange.link(as);
-                as->move(srcReg, lowReg);
-                as->move(TrustedImm32(quint32(QV4::Value::ValueTypeInternal_32::Integer)), highReg);
-                done.link(as);
-            } break;
-            case IR::SInt32Type:
-                as->move((RegisterID) t->index, lowReg);
-                as->move(TrustedImm32(quint32(QV4::Value::ValueTypeInternal_32::Integer)), highReg);
-                break;
-            case IR::BoolType:
-                as->move((RegisterID) t->index, lowReg);
-                as->move(TrustedImm32(quint32(QV4::Value::ValueTypeInternal_32::Boolean)), highReg);
-                break;
-            default:
-                Q_UNREACHABLE();
-            }
-        } else {
-            Pointer addr = as->loadAddressForReading(TargetPlatform::ScratchRegister, t);
-            as->load32(addr, lowReg);
-            addr.offset += 4;
-            as->load32(addr, highReg);
-        }
-    }
-
-    static void setFunctionReturnValueFromConst(JITAssembler *as, TargetPrimitive retVal)
-    {
-        as->move(TrustedImm32(retVal.value()), TargetPlatform::LowReturnValueRegister);
-        as->move(TrustedImm32(retVal.tag()), TargetPlatform::HighReturnValueRegister);
-    }
-
-    static void loadArgumentInRegister(JITAssembler *as, IR::Temp* temp, RegisterID dest, int argumentNumber)
-    {
-        Q_UNUSED(as);
-        Q_UNUSED(temp);
-        Q_UNUSED(dest);
-        Q_UNUSED(argumentNumber);
-    }
-
-    static void loadArgumentInRegister(JITAssembler *as, IR::ArgLocal* al, RegisterID dest, int argumentNumber)
-    {
-        Q_UNUSED(as);
-        Q_UNUSED(al);
-        Q_UNUSED(dest);
-        Q_UNUSED(argumentNumber);
-    }
-
-    static void loadArgumentInRegister(JITAssembler *as, IR::Const* c, RegisterID dest, int argumentNumber)
-    {
-        Q_UNUSED(as);
-        Q_UNUSED(c);
-        Q_UNUSED(dest);
-        Q_UNUSED(argumentNumber);
-    }
-
-    static void loadArgumentInRegister(JITAssembler *as, IR::Expr* expr, RegisterID dest, int argumentNumber)
-    {
-        Q_UNUSED(as);
-        Q_UNUSED(expr);
-        Q_UNUSED(dest);
-        Q_UNUSED(argumentNumber);
-    }
-
-    static void zeroRegister(JITAssembler *as, RegisterID reg)
-    {
-        as->move(TrustedImm32(0), reg);
-    }
-
-    static void zeroStackSlot(JITAssembler *as, int slot)
-    {
-        as->poke(TrustedImm32(0), slot);
-    }
-
-    static void generateCJumpOnUndefined(JITAssembler *as,
-                                  RelationalCondition cond, IR::Expr *right,
-                                  RegisterID scratchRegister, RegisterID tagRegister,
-                                  IR::BasicBlock *nextBlock, IR::BasicBlock *currentBlock,
-                                  IR::BasicBlock *trueBlock, IR::BasicBlock *falseBlock)
-    {
-        Pointer tagAddr = as->loadAddressForReading(scratchRegister, right);
-        as->load32(tagAddr, tagRegister);
-        Jump j = as->branch32(JITAssembler::invert(cond), tagRegister, TrustedImm32(0));
-        as->addPatch(falseBlock, j);
-
-        tagAddr.offset += 4;
-        as->load32(tagAddr, tagRegister);
-        const TrustedImm32 tag(QV4::Value::Managed_Type_Internal);
-        Q_ASSERT(nextBlock == as->nextBlock());
-        Q_UNUSED(nextBlock);
-        as->generateCJumpOnCompare(cond, tagRegister, tag, currentBlock, trueBlock, falseBlock);
-    }
-
-    static void convertVarToSInt32(JITAssembler *as, IR::Expr *source, IR::Expr *target)
-    {
-        Q_ASSERT(source->type == IR::VarType);
-        // load the tag:
-        Pointer addr = as->loadAddressForReading(TargetPlatform::ScratchRegister, source);
-        Pointer tagAddr = addr;
-        tagAddr.offset += 4;
-        as->load32(tagAddr, TargetPlatform::ReturnValueRegister);
-
-        // check if it's an int32:
-        Jump fallback = as->branch32(RelationalCondition::NotEqual, TargetPlatform::ReturnValueRegister,
-                                     TrustedImm32(quint32(Value::ValueTypeInternal_32::Integer)));
-        IR::Temp *targetTemp = target->asTemp();
-        if (!targetTemp || targetTemp->kind == IR::Temp::StackSlot) {
-            as->load32(addr, TargetPlatform::ReturnValueRegister);
-            WriteBarrier::Type barrier;
-            Pointer targetAddr = as->loadAddressForWriting(TargetPlatform::ScratchRegister, target, &barrier);
-            as->store32(TargetPlatform::ReturnValueRegister, targetAddr);
-            targetAddr.offset += 4;
-            as->store32(TrustedImm32(quint32(Value::ValueTypeInternal_32::Integer)), targetAddr);
-            if (WriteBarrier::isRequired<WriteBarrier::Primitive>() && barrier == WriteBarrier::Barrier)
-                emitWriteBarrier(as, targetAddr);
-        } else {
-            as->load32(addr, (RegisterID) targetTemp->index);
-        }
-        Jump intDone = as->jump();
-
-        // not an int:
-        fallback.link(as);
-        generateRuntimeCall(as, TargetPlatform::ReturnValueRegister, toInt,
-                            as->loadAddressForReading(TargetPlatform::ScratchRegister, source));
-        as->storeInt32(TargetPlatform::ReturnValueRegister, target);
-
-        intDone.link(as);
-    }
-
-    static void loadManagedPointer(JITAssembler *as, RegisterID registerWithPtr, Pointer destAddr, WriteBarrier::Type barrier)
-    {
-        as->store32(registerWithPtr, destAddr);
-        destAddr.offset += 4;
-        as->store32(TrustedImm32(QV4::Value::Managed_Type_Internal_32), destAddr);
-        if (WriteBarrier::isRequired<WriteBarrier::Object>() && barrier == WriteBarrier::Barrier)
-            emitWriteBarrier(as, destAddr);
-    }
-
-    static Jump generateIsDoubleCheck(JITAssembler *as, RegisterID tagOrValueRegister)
-    {
-        as->and32(TrustedImm32(Value::NotDouble_Mask), tagOrValueRegister);
-        return as->branch32(RelationalCondition::NotEqual, tagOrValueRegister,
-                            TrustedImm32(Value::NotDouble_Mask));
-    }
-
-    static void initializeLocalVariables(JITAssembler *as, int localsCount)
-    {
-        as->move(TrustedImm32(0), TargetPlatform::ReturnValueRegister);
-        as->move(TrustedImm32(localsCount), TargetPlatform::ScratchRegister);
-        Label loop = as->label();
-        as->store32(TargetPlatform::ReturnValueRegister, Address(TargetPlatform::LocalsRegister));
-        as->add32(TrustedImm32(4), TargetPlatform::LocalsRegister);
-        as->store32(TargetPlatform::ReturnValueRegister, Address(TargetPlatform::LocalsRegister));
-        as->add32(TrustedImm32(4), TargetPlatform::LocalsRegister);
-        Jump jump = as->branchSub32(ResultCondition::NonZero, TrustedImm32(1), TargetPlatform::ScratchRegister);
-        jump.linkTo(loop, as);
-    }
-
-    static Jump checkIfTagRegisterIsDouble(JITAssembler *as, RegisterID tagRegister)
-    {
-        as->and32(TrustedImm32(Value::NotDouble_Mask), tagRegister);
-        Jump isNoDbl = as->branch32(RelationalCondition::Equal, tagRegister, TrustedImm32(Value::NotDouble_Mask));
-        return isNoDbl;
-    }
-};
-
-template <typename JITAssembler, typename MacroAssembler, typename TargetPlatform>
-struct RegisterSizeDependentAssembler<JITAssembler, MacroAssembler, TargetPlatform, 8>
-{
-    using RegisterID = typename JITAssembler::RegisterID;
-    using FPRegisterID = typename JITAssembler::FPRegisterID;
-    using Address = typename JITAssembler::Address;
-    using TrustedImm32 = typename JITAssembler::TrustedImm32;
-    using TrustedImm64 = typename JITAssembler::TrustedImm64;
-    using Pointer = typename JITAssembler::Pointer;
-    using RelationalCondition = typename JITAssembler::RelationalCondition;
-    using ResultCondition = typename JITAssembler::ResultCondition;
-    using BranchTruncateType = typename JITAssembler::BranchTruncateType;
-    using Jump = typename JITAssembler::Jump;
-    using Label = typename JITAssembler::Label;
-    using ValueTypeInternal = Value::ValueTypeInternal_64;
-    using TargetPrimitive = TargetPrimitive64;
-
-    static void emitSetGrayBit(JITAssembler *as, RegisterID base)
-    {
-        bool returnValueUsed = (base == TargetPlatform::ReturnValueRegister);
-
-        as->push(TargetPlatform::EngineRegister); // free up one register for work
-
-        RegisterID grayBitmap = returnValueUsed ? TargetPlatform::ScratchRegister : TargetPlatform::ReturnValueRegister;
-        as->move(base, grayBitmap);
-        Q_ASSERT(base != grayBitmap);
-        as->urshift64(TrustedImm32(Chunk::ChunkShift), grayBitmap);
-        as->lshift64(TrustedImm32(Chunk::ChunkShift), grayBitmap);
-        Q_STATIC_ASSERT(offsetof(Chunk, grayBitmap) == 0);
-
-        RegisterID index = base;
-        as->move(base, index);
-        as->sub64(grayBitmap, index);
-        as->urshift64(TrustedImm32(Chunk::SlotSizeShift), index);
-        RegisterID grayIndex = TargetPlatform::EngineRegister;
-        as->move(index, grayIndex);
-        as->urshift64(TrustedImm32(Chunk::BitShift), grayIndex);
-        as->lshift64(TrustedImm32(3), grayIndex); // 8 bytes per quintptr
-        as->add64(grayIndex, grayBitmap);
-        as->and64(TrustedImm32(Chunk::Bits - 1), index);
-
-        RegisterID bit = TargetPlatform::EngineRegister;
-        as->move(TrustedImm32(1), bit);
-        as->lshift64(index, bit);
-
-        as->load64(Pointer(grayBitmap, 0), index);
-        as->or64(bit, index);
-        as->store64(index, Pointer(grayBitmap, 0));
-
-        as->pop(TargetPlatform::EngineRegister);
-    }
-
-#if WRITEBARRIER(none)
-    static Q_ALWAYS_INLINE void emitWriteBarrier(JITAssembler *, Address) {}
-#endif
-
-    static void loadDouble(JITAssembler *as, Address addr, FPRegisterID dest)
-    {
-        as->load64(addr, TargetPlatform::ReturnValueRegister);
-        as->xor64(TargetPlatform::DoubleMaskRegister, TargetPlatform::ReturnValueRegister);
-        as->move64ToDouble(TargetPlatform::ReturnValueRegister, dest);
-    }
-
-    static void storeDouble(JITAssembler *as, FPRegisterID source, Address addr, WriteBarrier::Type barrier)
-    {
-        as->moveDoubleTo64(source, TargetPlatform::ReturnValueRegister);
-        as->xor64(TargetPlatform::DoubleMaskRegister, TargetPlatform::ReturnValueRegister);
-        as->store64(TargetPlatform::ReturnValueRegister, addr);
-        if (WriteBarrier::isRequired<WriteBarrier::Primitive>() && barrier == WriteBarrier::Barrier)
-            emitWriteBarrier(as, addr);
-    }
-
-    static void storeDouble(JITAssembler *as, FPRegisterID source, IR::Expr* target)
-    {
-        as->moveDoubleTo64(source, TargetPlatform::ReturnValueRegister);
-        as->xor64(TargetPlatform::DoubleMaskRegister, TargetPlatform::ReturnValueRegister);
-        WriteBarrier::Type barrier;
-        Pointer ptr = as->loadAddressForWriting(TargetPlatform::ScratchRegister, target, &barrier);
-        as->store64(TargetPlatform::ReturnValueRegister, ptr);
-        if (WriteBarrier::isRequired<WriteBarrier::Primitive>() && barrier == WriteBarrier::Barrier)
-            emitWriteBarrier(as, ptr);
-    }
-
-    static void storeReturnValue(JITAssembler *as, FPRegisterID dest)
-    {
-        as->xor64(TargetPlatform::DoubleMaskRegister, TargetPlatform::ReturnValueRegister);
-        as->move64ToDouble(TargetPlatform::ReturnValueRegister, dest);
-    }
-
-    static void storeReturnValue(JITAssembler *as, const Pointer &dest, WriteBarrier::Type barrier)
-    {
-        as->store64(TargetPlatform::ReturnValueRegister, dest);
-        if (WriteBarrier::isRequired<WriteBarrier::Unknown>() && barrier == WriteBarrier::Barrier)
-            emitWriteBarrier(as, dest);
-    }
-
-    static void setFunctionReturnValueFromTemp(JITAssembler *as, IR::Temp *t)
-    {
-        if (t->kind == IR::Temp::PhysicalRegister) {
-            if (t->type == IR::DoubleType) {
-                as->moveDoubleTo64((FPRegisterID) t->index,
-                                    TargetPlatform::ReturnValueRegister);
-                as->xor64(TargetPlatform::DoubleMaskRegister, TargetPlatform::ReturnValueRegister);
-            } else if (t->type == IR::UInt32Type) {
-                RegisterID srcReg = (RegisterID) t->index;
-                Jump intRange = as->branch32(RelationalCondition::GreaterThanOrEqual, srcReg, TrustedImm32(0));
-                as->convertUInt32ToDouble(srcReg, TargetPlatform::FPGpr0, TargetPlatform::ReturnValueRegister);
-                as->moveDoubleTo64(TargetPlatform::FPGpr0, TargetPlatform::ReturnValueRegister);
-                as->xor64(TargetPlatform::DoubleMaskRegister, TargetPlatform::ReturnValueRegister);
-                Jump done = as->jump();
-                intRange.link(as);
-                as->zeroExtend32ToPtr(srcReg, TargetPlatform::ReturnValueRegister);
-                quint64 tag = quint64(QV4::Value::ValueTypeInternal_64::Integer);
-                as->or64(TrustedImm64(tag << 32),
-                         TargetPlatform::ReturnValueRegister);
-                done.link(as);
-            } else {
-                as->zeroExtend32ToPtr((RegisterID) t->index, TargetPlatform::ReturnValueRegister);
-                quint64 tag;
-                switch (t->type) {
-                case IR::SInt32Type:
-                    tag = quint64(QV4::Value::ValueTypeInternal_64::Integer);
-                    break;
-                case IR::BoolType:
-                    tag = quint64(QV4::Value::ValueTypeInternal_64::Boolean);
-                    break;
-                default:
-                    tag = 31337; // bogus value
-                    Q_UNREACHABLE();
-                }
-                as->or64(TrustedImm64(tag << 32),
-                         TargetPlatform::ReturnValueRegister);
-            }
-        } else {
-            as->copyValue(TargetPlatform::ReturnValueRegister, t, WriteBarrier::NoBarrier);
-        }
-    }
-
-    static void setFunctionReturnValueFromConst(JITAssembler *as, TargetPrimitive retVal)
-    {
-        as->move(TrustedImm64(retVal.rawValue()), TargetPlatform::ReturnValueRegister);
-    }
-
-    static void storeValue(JITAssembler *as, TargetPrimitive value, Address destination, WriteBarrier::Type barrier)
-    {
-        as->store64(TrustedImm64(value.rawValue()), destination);
-        if (WriteBarrier::isRequired<WriteBarrier::Unknown>() && barrier == WriteBarrier::Barrier)
-            emitWriteBarrier(as, destination);
-    }
-
-    template <typename Source, typename Destination>
-    static void copyValueViaRegisters(JITAssembler *as, Source source, Destination destination, WriteBarrier::Type barrier)
-    {
-        // Use ReturnValueRegister as "scratch" register because loadArgument
-        // and storeArgument are functions that may need a scratch register themselves.
-        loadArgumentInRegister(as, source, TargetPlatform::ReturnValueRegister, 0);
-        as->storeReturnValue(destination, barrier);
-    }
-
-    static void loadDoubleConstant(JITAssembler *as, IR::Const *c, FPRegisterID target)
-    {
-        Q_STATIC_ASSERT(sizeof(int64_t) == sizeof(double));
-        int64_t i;
-        memcpy(&i, &c->value, sizeof(double));
-        as->move(TrustedImm64(i), TargetPlatform::ReturnValueRegister);
-        as->move64ToDouble(TargetPlatform::ReturnValueRegister, target);
-    }
-
-    static void loadArgumentInRegister(JITAssembler *as, Address addressOfValue, RegisterID dest, int argumentNumber)
-    {
-        Q_UNUSED(argumentNumber);
-        as->load64(addressOfValue, dest);
-    }
-
-    static void loadArgumentInRegister(JITAssembler *as, IR::Temp* temp, RegisterID dest, int argumentNumber)
-    {
-        Q_UNUSED(argumentNumber);
-
-        if (temp) {
-            Pointer addr = as->loadTempAddress(temp);
-            as->load64(addr, dest);
-        } else {
-            auto undefined = TargetPrimitive::undefinedValue();
-            as->move(TrustedImm64(undefined.rawValue()), dest);
-        }
-    }
-
-    static void loadArgumentInRegister(JITAssembler *as, IR::ArgLocal* al, RegisterID dest, int argumentNumber)
-    {
-        Q_UNUSED(argumentNumber);
-
-        if (al) {
-            Pointer addr = as->loadArgLocalAddressForReading(dest, al);
-            as->load64(addr, dest);
-        } else {
-            auto undefined = TargetPrimitive::undefinedValue();
-            as->move(TrustedImm64(undefined.rawValue()), dest);
-        }
-    }
-
-    static void loadArgumentInRegister(JITAssembler *as, IR::Const* c, RegisterID dest, int argumentNumber)
-    {
-        Q_UNUSED(argumentNumber);
-
-        auto v = convertToValue<TargetPrimitive64>(c);
-        as->move(TrustedImm64(v.rawValue()), dest);
-    }
-
-    static void loadArgumentInRegister(JITAssembler *as, IR::Expr* expr, RegisterID dest, int argumentNumber)
-    {
-        Q_UNUSED(argumentNumber);
-
-        if (!expr) {
-            auto undefined = TargetPrimitive::undefinedValue();
-            as->move(TrustedImm64(undefined.rawValue()), dest);
-        } else if (IR::Temp *t = expr->asTemp()){
-            loadArgumentInRegister(as, t, dest, argumentNumber);
-        } else if (IR::ArgLocal *al = expr->asArgLocal()) {
-            loadArgumentInRegister(as, al, dest, argumentNumber);
-        } else if (IR::Const *c = expr->asConst()) {
-            loadArgumentInRegister(as, c, dest, argumentNumber);
-        } else {
-            Q_ASSERT(!"unimplemented expression type in loadArgument");
-        }
-    }
-
-    static void zeroRegister(JITAssembler *as, RegisterID reg)
-    {
-        as->move(TrustedImm64(0), reg);
-    }
-
-    static void zeroStackSlot(JITAssembler *as, int slot)
-    {
-        as->store64(TrustedImm64(0), as->addressForPoke(slot));
-    }
-
-    static void generateCJumpOnCompare(JITAssembler *as,
-                                       RelationalCondition cond,
-                                       RegisterID left,
-                                       TrustedImm64 right,
-                                       IR::BasicBlock *nextBlock,
-                                       IR::BasicBlock *currentBlock,
-                                       IR::BasicBlock *trueBlock,
-                                       IR::BasicBlock *falseBlock)
-    {
-        if (trueBlock == nextBlock) {
-            Jump target = as->branch64(as->invert(cond), left, right);
-            as->addPatch(falseBlock, target);
-        } else {
-            Jump target = as->branch64(cond, left, right);
-            as->addPatch(trueBlock, target);
-            as->jumpToBlock(currentBlock, falseBlock);
-        }
-    }
-
-    static void generateCJumpOnUndefined(JITAssembler *as,
-                                  RelationalCondition cond, IR::Expr *right,
-                                  RegisterID scratchRegister, RegisterID tagRegister,
-                                  IR::BasicBlock *nextBlock,  IR::BasicBlock *currentBlock,
-                                  IR::BasicBlock *trueBlock, IR::BasicBlock *falseBlock)
-    {
-        Pointer addr = as->loadAddressForReading(scratchRegister, right);
-        as->load64(addr, tagRegister);
-        const TrustedImm64 tag(0);
-        generateCJumpOnCompare(as, cond, tagRegister, tag, nextBlock, currentBlock, trueBlock, falseBlock);
-    }
-
-    static void convertVarToSInt32(JITAssembler *as, IR::Expr *source, IR::Expr *target)
-    {
-        Q_ASSERT(source->type == IR::VarType);
-        Pointer addr = as->loadAddressForReading(TargetPlatform::ScratchRegister, source);
-        as->load64(addr, TargetPlatform::ScratchRegister);
-        as->move(TargetPlatform::ScratchRegister, TargetPlatform::ReturnValueRegister);
-
-        // check if it's integer convertible
-        as->urshift64(TrustedImm32(QV4::Value::IsIntegerConvertible_Shift), TargetPlatform::ScratchRegister);
-        Jump isIntConvertible = as->branch32(RelationalCondition::Equal, TargetPlatform::ScratchRegister, TrustedImm32(3));
-
-        // nope, not integer convertible, so check for a double:
-        as->urshift64(TrustedImm32(
-                           QV4::Value::IsDoubleTag_Shift - QV4::Value::IsIntegerConvertible_Shift),
-                       TargetPlatform::ScratchRegister);
-        Jump fallback = as->branch32(RelationalCondition::GreaterThan, TargetPlatform::ScratchRegister, TrustedImm32(0));
-
-        // it's a double
-        as->xor64(TargetPlatform::DoubleMaskRegister, TargetPlatform::ReturnValueRegister);
-        as->move64ToDouble(TargetPlatform::ReturnValueRegister, TargetPlatform::FPGpr0);
-        Jump success =
-                as->branchTruncateDoubleToInt32(TargetPlatform::FPGpr0, TargetPlatform::ReturnValueRegister,
-                                                 BranchTruncateType::BranchIfTruncateSuccessful);
-
-        // not an int:
-        fallback.link(as);
-        generateRuntimeCall(as, TargetPlatform::ReturnValueRegister, toInt,
-                            as->loadAddressForReading(TargetPlatform::ScratchRegister, source));
-
-
-        isIntConvertible.link(as);
-        success.link(as);
-        IR::Temp *targetTemp = target->asTemp();
-        if (!targetTemp || targetTemp->kind == IR::Temp::StackSlot) {
-            WriteBarrier::Type barrier;
-            Pointer targetAddr = as->loadAddressForWriting(TargetPlatform::ScratchRegister, target, &barrier);
-            as->store32(TargetPlatform::ReturnValueRegister, targetAddr);
-            targetAddr.offset += 4;
-            as->store32(TrustedImm32(quint32(Value::ValueTypeInternal_64::Integer)), targetAddr);
-            if (WriteBarrier::isRequired<WriteBarrier::Primitive>() && barrier == WriteBarrier::Barrier)
-                emitWriteBarrier(as, targetAddr);
-        } else {
-            as->storeInt32(TargetPlatform::ReturnValueRegister, target);
-        }
-    }
-
-    static void loadManagedPointer(JITAssembler *as, RegisterID registerWithPtr, Pointer destAddr, WriteBarrier::Type barrier)
-    {
-        as->store64(registerWithPtr, destAddr);
-        if (WriteBarrier::isRequired<WriteBarrier::Object>() && barrier == WriteBarrier::Barrier)
-            emitWriteBarrier(as, destAddr);
-    }
-
-    static Jump generateIsDoubleCheck(JITAssembler *as, RegisterID tagOrValueRegister)
-    {
-        as->rshift32(TrustedImm32(Value::IsDoubleTag_Shift), tagOrValueRegister);
-        return as->branch32(RelationalCondition::NotEqual, tagOrValueRegister,
-                            TrustedImm32(0));
-    }
-
-    static void initializeLocalVariables(JITAssembler *as, int localsCount)
-    {
-        as->move(TrustedImm64(0), TargetPlatform::ReturnValueRegister);
-        as->move(TrustedImm32(localsCount), TargetPlatform::ScratchRegister);
-        Label loop = as->label();
-        as->store64(TargetPlatform::ReturnValueRegister, Address(TargetPlatform::LocalsRegister));
-        as->add64(TrustedImm32(8), TargetPlatform::LocalsRegister);
-        Jump jump = as->branchSub32(ResultCondition::NonZero, TrustedImm32(1), TargetPlatform::ScratchRegister);
-        jump.linkTo(loop, as);
-    }
-
-    static Jump checkIfTagRegisterIsDouble(JITAssembler *as, RegisterID tagRegister)
-    {
-        as->rshift32(TrustedImm32(Value::IsDoubleTag_Shift), tagRegister);
-        Jump isNoDbl = as->branch32(RelationalCondition::Equal, tagRegister, TrustedImm32(0));
-        return isNoDbl;
-    }
-};
-
-template <typename TargetConfiguration>
-class Assembler : public TargetConfiguration::MacroAssembler, public TargetConfiguration::Platform
-{
-    Q_DISABLE_COPY(Assembler)
-
-public:
-    Assembler(QV4::Compiler::JSUnitGenerator *jsGenerator, IR::Function* function, QV4::ExecutableAllocator *executableAllocator);
-
-    using MacroAssembler = typename TargetConfiguration::MacroAssembler;
-    using RegisterID = typename MacroAssembler::RegisterID;
-    using FPRegisterID = typename MacroAssembler::FPRegisterID;
-    using Address = typename MacroAssembler::Address;
-    using Label = typename MacroAssembler::Label;
-    using Jump = typename MacroAssembler::Jump;
-    using DataLabelPtr = typename MacroAssembler::DataLabelPtr;
-    using TrustedImm32 = typename MacroAssembler::TrustedImm32;
-    using TrustedImm64 = typename MacroAssembler::TrustedImm64;
-    using TrustedImmPtr = typename MacroAssembler::TrustedImmPtr;
-    using RelationalCondition = typename MacroAssembler::RelationalCondition;
-    using typename MacroAssembler::DoubleCondition;
-    using MacroAssembler::label;
-    using MacroAssembler::move;
-    using MacroAssembler::jump;
-    using MacroAssembler::add32;
-    using MacroAssembler::and32;
-    using MacroAssembler::store32;
-    using MacroAssembler::loadPtr;
-    using MacroAssembler::load32;
-    using MacroAssembler::branch32;
-    using MacroAssembler::subDouble;
-    using MacroAssembler::subPtr;
-    using MacroAssembler::addPtr;
-    using MacroAssembler::call;
-    using MacroAssembler::poke;
-    using MacroAssembler::branchTruncateDoubleToUint32;
-    using MacroAssembler::or32;
-    using MacroAssembler::moveDouble;
-    using MacroAssembler::convertUInt32ToDouble;
-    using MacroAssembler::invert;
-    using MacroAssembler::convertInt32ToDouble;
-    using MacroAssembler::rshift32;
-    using MacroAssembler::storePtr;
-    using MacroAssembler::ret;
-
-    using JITTargetPlatform = typename TargetConfiguration::Platform;
-    using JITTargetPlatform::RegisterArgumentCount;
-    using JITTargetPlatform::StackSpaceAllocatedUponFunctionEntry;
-    using JITTargetPlatform::RegisterSize;
-    using JITTargetPlatform::StackAlignment;
-    using JITTargetPlatform::ReturnValueRegister;
-    using JITTargetPlatform::StackPointerRegister;
-    using JITTargetPlatform::ScratchRegister;
-    using JITTargetPlatform::EngineRegister;
-    using JITTargetPlatform::StackShadowSpace;
-    using JITTargetPlatform::registerForArgument;
-    using JITTargetPlatform::FPGpr0;
-    using JITTargetPlatform::platformEnterStandardStackFrame;
-    using JITTargetPlatform::platformFinishEnteringStandardStackFrame;
-    using JITTargetPlatform::platformLeaveStandardStackFrame;
-
-    static qint32 targetStructureOffset(qint32 hostOffset)
-    {
-        Q_ASSERT(hostOffset % QT_POINTER_SIZE == 0);
-        return (hostOffset * RegisterSize) / QT_POINTER_SIZE;
-    }
-
-    struct LookupCall {
-        Address addr;
-        uint getterSetterOffset;
-
-        LookupCall(const Address &addr, uint getterSetterOffset)
-            : addr(addr)
-            , getterSetterOffset(getterSetterOffset)
-        {}
-    };
-
-    struct RuntimeCall {
-        Address addr;
-
-        inline RuntimeCall(Runtime::RuntimeMethods method = Runtime::InvalidRuntimeMethod);
-        bool isValid() const { return addr.offset >= 0; }
-    };
-
-    // Explicit type to allow distinguishing between
-    // pushing an address itself or the value it points
-    // to onto the stack when calling functions.
-    struct Pointer : public Address
-    {
-        explicit Pointer(const Address& addr)
-            : Address(addr)
-        {}
-        explicit Pointer(RegisterID reg, int32_t offset)
-            : Address(reg, offset)
-        {}
-    };
-
-    using RegisterSizeDependentOps = RegisterSizeDependentAssembler<Assembler<TargetConfiguration>, MacroAssembler, JITTargetPlatform, RegisterSize>;
-    using ValueTypeInternal = typename RegisterSizeDependentOps::ValueTypeInternal;
-    using TargetPrimitive = typename RegisterSizeDependentOps::TargetPrimitive;
-
-    // V4 uses two stacks: one stack with QV4::Value items, which is checked by the garbage
-    // collector, and one stack used by the native C/C++/ABI code. This C++ stack is not scanned
-    // by the garbage collector, so if any JS object needs to be retained, it should be put on the
-    // JS stack.
-    //
-    // The "saved reg arg X" are on the C++ stack is used to store values in registers that need to
-    // be passed by reference to native functions. It is fine to use the C++ stack, because only
-    // non-object values can be stored in registers.
-    //
-    // Stack layout for the C++ stack:
-    //   return address
-    //   old FP                     <- FP
-    //   callee saved reg n
-    //   ...
-    //   callee saved reg 0
-    //   saved reg arg n
-    //   ...
-    //   saved reg arg 0            <- SP
-    //
-    // Stack layout for the JS stack:
-    //   function call argument n   <- LocalsRegister
-    //   ...
-    //   function call argument 0
-    //   local 0
-    //   ...
-    //   local n
-    class StackLayout
-    {
-    public:
-        StackLayout(IR::Function *function, int maxArgCountForBuiltins, int normalRegistersToSave, int fpRegistersToSave)
-            : normalRegistersToSave(normalRegistersToSave)
-            , fpRegistersToSave(fpRegistersToSave)
-            , maxOutgoingArgumentCount(function->maxNumberOfArguments)
-            , localCount(function->tempCount)
-            , savedRegCount(maxArgCountForBuiltins)
-        {
-#if 0 // debug code
-            qDebug("calleeSavedRegCount.....: %d",calleeSavedRegCount);
-            qDebug("maxOutgoingArgumentCount: %d",maxOutgoingArgumentCount);
-            qDebug("localCount..............: %d",localCount);
-            qDebug("savedConstCount.........: %d",savedRegCount);
-            for (int i = 0; i < maxOutgoingArgumentCount; ++i)
-                qDebug("argumentAddressForCall(%d) = 0x%x / -0x%x", i,
-                       argumentAddressForCall(i).offset, -argumentAddressForCall(i).offset);
-            for (int i = 0; i < localCount; ++i)
-                qDebug("local(%d) = 0x%x / -0x%x", i, stackSlotPointer(i).offset,
-                       -stackSlotPointer(i).offset);
-            qDebug("savedReg(0) = 0x%x / -0x%x", savedRegPointer(0).offset, -savedRegPointer(0).offset);
-            qDebug("savedReg(1) = 0x%x / -0x%x", savedRegPointer(1).offset, -savedRegPointer(1).offset);
-            qDebug("savedReg(2) = 0x%x / -0x%x", savedRegPointer(2).offset, -savedRegPointer(2).offset);
-            qDebug("savedReg(3) = 0x%x / -0x%x", savedRegPointer(3).offset, -savedRegPointer(3).offset);
-            qDebug("savedReg(4) = 0x%x / -0x%x", savedRegPointer(4).offset, -savedRegPointer(4).offset);
-            qDebug("savedReg(5) = 0x%x / -0x%x", savedRegPointer(5).offset, -savedRegPointer(5).offset);
-
-            qDebug("callDataAddress(0) = 0x%x", callDataAddress(0).offset);
-#endif
-        }
-
-        int calculateStackFrameSize() const
-        {
-            // sp was aligned before executing the call instruction. So, calculate all contents
-            // that were saved after that aligned stack...:
-            const int stackSpaceAllocatedOtherwise = StackSpaceAllocatedUponFunctionEntry
-                                                     + RegisterSize; // saved FramePointerRegister
-
-            // ... then calculate the stuff we want to store ...:
-            int frameSize = RegisterSize * normalRegistersToSave + sizeof(double) * fpRegistersToSave;
-            frameSize += savedRegCount * sizeof(QV4::Value); // (these get written out as Values, not as native registers)
-
-            Q_ASSERT(frameSize + stackSpaceAllocatedOtherwise < INT_MAX);
-            // .. then align that chunk ..:
-            frameSize = static_cast<int>(WTF::roundUpToMultipleOf(StackAlignment, frameSize + stackSpaceAllocatedOtherwise));
-            // ... which now holds our frame size + the extra stuff that was pushed due to the call.
-            // So subtract that extra stuff, and we have our frame size:
-            frameSize -= stackSpaceAllocatedOtherwise;
-
-            return frameSize;
-        }
-
-        /// \return the stack frame size in number of Value items.
-        int calculateJSStackFrameSize() const
-        {
-            return (localCount + sizeof(QV4::CallData)/sizeof(QV4::Value) - 1 + maxOutgoingArgumentCount) + 1;
-        }
-
-        Address stackSlotPointer(int idx) const
-        {
-            Q_ASSERT(idx >= 0);
-            Q_ASSERT(idx < localCount);
-
-            Pointer addr = callDataAddress(0);
-            addr.offset -= sizeof(QV4::Value) * (idx + 1);
-            return addr;
-        }
-
-        // Some run-time functions take (Value* args, int argc). This function is for populating
-        // the args.
-        Pointer argumentAddressForCall(int argument) const
-        {
-            Q_ASSERT(argument >= 0);
-            Q_ASSERT(argument < maxOutgoingArgumentCount);
-
-            const int index = maxOutgoingArgumentCount - argument;
-            return Pointer(Assembler::LocalsRegister, sizeof(QV4::Value) * (-index));
-        }
-
-        Pointer callDataAddress(int offset = 0) const {
-            return Pointer(Assembler::LocalsRegister, offset - (sizeof(QV4::CallData) + sizeof(QV4::Value) * (maxOutgoingArgumentCount - 1)));
-        }
-
-        Address savedRegPointer(int offset) const
-        {
-            Q_ASSERT(offset >= 0);
-            Q_ASSERT(offset < savedRegCount);
-
-            // Get the address of the bottom-most element of our frame:
-            Address ptr(Assembler::FramePointerRegister, -calculateStackFrameSize());
-            // This now is the element with offset 0. So:
-            ptr.offset += offset * sizeof(QV4::Value);
-            // and we're done!
-            return ptr;
-        }
-
-    private:
-        int normalRegistersToSave;
-        int fpRegistersToSave;
-
-        /// arg count for calls to JS functions
-        int maxOutgoingArgumentCount;
-
-        /// the number of spill slots needed by this function
-        int localCount;
-
-        /// used by built-ins to save arguments (e.g. constants) to the stack when they need to be
-        /// passed by reference.
-        int savedRegCount;
-    };
-
-    struct VoidType { VoidType() {} };
-    static const VoidType Void;
-
-    typedef JSC::FunctionPtr FunctionPtr;
-
-#ifndef QT_NO_DEBUG
-    struct CallInfo {
-        Label label;
-        const char* functionName;
-    };
-#endif
-    struct PointerToValue {
-        PointerToValue(IR::Expr *value)
-            : value(value)
-        {}
-        IR::Expr *value;
-    };
-    struct StringToIndex {
-        explicit StringToIndex(const QString &string) : string(string) {}
-        QString string;
-    };
-    struct Reference {
-        Reference(IR::Expr *value) : value(value) {
-            Q_ASSERT(value->asTemp() || value->asArgLocal());
-        }
-        IR::Expr *value;
-    };
-
-    void callAbsolute(const char* /*functionName*/, const LookupCall &lookupCall)
-    {
-        call(lookupCall.addr);
-    }
-
-    void callAbsolute(const char *functionName, const RuntimeCall &runtimeCall)
-    {
-        call(runtimeCall.addr);
-#ifndef QT_NO_DEBUG
-        // the code below is to get proper function names in the disassembly
-        CallInfo info;
-        info.functionName = functionName;
-        info.label = label();
-        _callInfos.append(info);
-#else
-        Q_UNUSED(functionName)
-#endif
-    }
-
-    void registerBlock(IR::BasicBlock*, IR::BasicBlock *nextBlock);
-    IR::BasicBlock *nextBlock() const { return _nextBlock; }
-    void jumpToBlock(IR::BasicBlock* current, IR::BasicBlock *target);
-    void addPatch(IR::BasicBlock* targetBlock, Jump targetJump);
-    void addPatch(DataLabelPtr patch, Label target);
-    void addPatch(DataLabelPtr patch, IR::BasicBlock *target);
-    void generateCJumpOnNonZero(RegisterID reg, IR::BasicBlock *currentBlock,
-                             IR::BasicBlock *trueBlock, IR::BasicBlock *falseBlock);
-    void generateCJumpOnCompare(RelationalCondition cond, RegisterID left, TrustedImm32 right,
-                                IR::BasicBlock *currentBlock, IR::BasicBlock *trueBlock,
-                                IR::BasicBlock *falseBlock);
-    void generateCJumpOnCompare(RelationalCondition cond, RegisterID left, RegisterID right,
-                                IR::BasicBlock *currentBlock, IR::BasicBlock *trueBlock,
-                                IR::BasicBlock *falseBlock);
-    void generateCJumpOnUndefined(RelationalCondition cond, IR::Expr *right,
-                                  RegisterID scratchRegister, RegisterID tagRegister,
-                                  IR::BasicBlock *currentBlock, IR::BasicBlock *trueBlock,
-                                  IR::BasicBlock *falseBlock)
-    {
-        RegisterSizeDependentOps::generateCJumpOnUndefined(this, cond, right, scratchRegister, tagRegister,
-                                                           _nextBlock, currentBlock, trueBlock, falseBlock);
-    }
-
-    Jump generateIsDoubleCheck(RegisterID tagOrValueRegister)
-    {
-        return RegisterSizeDependentOps::generateIsDoubleCheck(this, tagOrValueRegister);
-    }
-
-    Jump genTryDoubleConversion(IR::Expr *src, FPRegisterID dest);
-    Jump branchDouble(bool invertCondition, IR::AluOp op, IR::Expr *left, IR::Expr *right);
-    Jump branchInt32(bool invertCondition, IR::AluOp op, IR::Expr *left, IR::Expr *right);
-
-    Pointer loadAddressForWriting(RegisterID tmp, IR::Expr *t, WriteBarrier::Type *barrier);
-    Pointer loadAddressForReading(RegisterID tmp, IR::Expr *t) {
-        return loadAddressForWriting(tmp, t, 0);
-    }
-
-    Pointer loadTempAddress(IR::Temp *t);
-    Pointer loadArgLocalAddressForWriting(RegisterID baseReg, IR::ArgLocal *al, WriteBarrier::Type *barrier);
-    Pointer loadArgLocalAddressForReading(RegisterID baseReg, IR::ArgLocal *al) {
-        return loadArgLocalAddressForWriting(baseReg, al, 0);
-    }
-    Pointer loadStringAddress(RegisterID reg, const QString &string);
-    Address loadConstant(IR::Const *c, RegisterID baseReg);
-    Address loadConstant(const TargetPrimitive &v, RegisterID baseReg);
-    void loadStringRef(RegisterID reg, const QString &string);
-    Pointer stackSlotPointer(IR::Temp *t) const
-    {
-        Q_ASSERT(t->kind == IR::Temp::StackSlot);
-
-        return Pointer(_stackLayout->stackSlotPointer(t->index));
-    }
-
-    template <int argumentNumber>
-    void saveOutRegister(PointerToValue arg)
-    {
-        if (!arg.value)
-            return;
-        if (IR::Temp *t = arg.value->asTemp()) {
-            if (t->kind == IR::Temp::PhysicalRegister) {
-                Pointer addr(_stackLayout->savedRegPointer(argumentNumber));
-                switch (t->type) {
-                case IR::BoolType:
-                    storeBool((RegisterID) t->index, addr, WriteBarrier::NoBarrier);
-                    break;
-                case IR::SInt32Type:
-                    storeInt32((RegisterID) t->index, addr, WriteBarrier::NoBarrier);
-                    break;
-                case IR::UInt32Type:
-                    storeUInt32((RegisterID) t->index, addr, WriteBarrier::NoBarrier);
-                    break;
-                case IR::DoubleType:
-                    storeDouble((FPRegisterID) t->index, addr, WriteBarrier::NoBarrier);
-                    break;
-                default:
-                    Q_UNIMPLEMENTED();
-                }
-            }
-        }
-    }
-
-    template <int, typename ArgType>
-    void saveOutRegister(ArgType)
-    {}
-
-    void loadArgumentInRegister(RegisterID source, RegisterID dest, int argumentNumber)
-    {
-        Q_UNUSED(argumentNumber);
-
-        move(source, dest);
-    }
-
-    void loadArgumentInRegister(const Pointer& ptr, RegisterID dest, int argumentNumber)
-    {
-        Q_UNUSED(argumentNumber);
-        addPtr(TrustedImm32(ptr.offset), ptr.base, dest);
-    }
-
-    void loadArgumentInRegister(PointerToValue temp, RegisterID dest, int argumentNumber)
-    {
-        if (!temp.value) {
-            RegisterSizeDependentOps::zeroRegister(this, dest);
-        } else {
-            Pointer addr = toAddress(dest, temp.value, argumentNumber, 0);
-            loadArgumentInRegister(addr, dest, argumentNumber);
-        }
-    }
-    void loadArgumentInRegister(StringToIndex temp, RegisterID dest, int argumentNumber)
-    {
-        Q_UNUSED(argumentNumber);
-        loadStringRef(dest, temp.string);
-    }
-
-    void loadArgumentInRegister(Reference temp, RegisterID dest, int argumentNumber)
-    {
-        Q_ASSERT(temp.value);
-        Pointer addr = loadAddressForReading(dest, temp.value);
-        loadArgumentInRegister(addr, dest, argumentNumber);
-    }
-
-    void loadArgumentInRegister(IR::Temp* temp, RegisterID dest, int argumentNumber)
-    {
-        RegisterSizeDependentOps::loadArgumentInRegister(this, temp, dest, argumentNumber);
-    }
-
-    void loadArgumentInRegister(IR::ArgLocal* al, RegisterID dest, int argumentNumber)
-    {
-        RegisterSizeDependentOps::loadArgumentInRegister(this, al, dest, argumentNumber);
-    }
-
-    void loadArgumentInRegister(IR::Const* c, RegisterID dest, int argumentNumber)
-    {
-        RegisterSizeDependentOps::loadArgumentInRegister(this, c, dest, argumentNumber);
-    }
-
-    void loadArgumentInRegister(IR::Expr* expr, RegisterID dest, int argumentNumber)
-    {
-        RegisterSizeDependentOps::loadArgumentInRegister(this, expr, dest, argumentNumber);
-    }
-
-    void loadArgumentInRegister(TrustedImm32 imm32, RegisterID dest, int argumentNumber)
-    {
-        Q_UNUSED(argumentNumber);
-
-        RegisterSizeDependentOps::zeroRegister(this, dest);
-        if (imm32.m_value)
-            move(imm32, dest);
-    }
-
-    void storeReturnValue(RegisterID dest, WriteBarrier::Type barrier = WriteBarrier::NoBarrier)
-    {
-        Q_UNUSED(barrier);
-        Q_ASSERT(barrier == WriteBarrier::NoBarrier);
-        move(ReturnValueRegister, dest);
-    }
-
-    void storeUInt32ReturnValue(RegisterID dest)
-    {
-        subPtr(TrustedImm32(sizeof(QV4::Value)), StackPointerRegister);
-        Pointer tmp(StackPointerRegister, 0);
-        storeReturnValue(tmp, WriteBarrier::NoBarrier);
-        toUInt32Register(tmp, dest);
-        addPtr(TrustedImm32(sizeof(QV4::Value)), StackPointerRegister);
-    }
-
-    void storeReturnValue(FPRegisterID dest)
-    {
-        RegisterSizeDependentOps::storeReturnValue(this, dest);
-    }
-
-    void storeReturnValue(const Pointer &dest, WriteBarrier::Type barrier)
-    {
-        RegisterSizeDependentOps::storeReturnValue(this, dest, barrier);
-    }
-
-    void storeReturnValue(IR::Expr *target)
-    {
-        if (!target)
-            return;
-
-        IR::Temp *temp = target->asTemp();
-        if (temp && temp->kind == IR::Temp::PhysicalRegister) {
-            if (temp->type == IR::DoubleType)
-                storeReturnValue((FPRegisterID) temp->index);
-            else if (temp->type == IR::UInt32Type)
-                storeUInt32ReturnValue((RegisterID) temp->index);
-            else
-                storeReturnValue((RegisterID) temp->index);
-            return;
-        } else {
-            WriteBarrier::Type barrier;
-            Pointer addr = loadAddressForWriting(ScratchRegister, target, &barrier);
-            storeReturnValue(addr, barrier);
-        }
-    }
-
-    void storeReturnValue(VoidType)
-    {
-    }
-
-    template <int StackSlot>
-    void loadArgumentOnStack(RegisterID reg, int argumentNumber)
-    {
-        Q_UNUSED(argumentNumber);
-
-        poke(reg, StackSlot);
-    }
-
-    template <int StackSlot>
-    void loadArgumentOnStack(TrustedImm32 value, int argumentNumber)
-    {
-        Q_UNUSED(argumentNumber);
-
-        poke(value, StackSlot);
-    }
-
-    template <int StackSlot>
-    void loadArgumentOnStack(const Pointer& ptr, int argumentNumber)
-    {
-        Q_UNUSED(argumentNumber);
-
-        addPtr(TrustedImm32(ptr.offset), ptr.base, ScratchRegister);
-        poke(ScratchRegister, StackSlot);
-    }
-
-    template <int StackSlot>
-    void loadArgumentOnStack(PointerToValue temp, int argumentNumber)
-    {
-        if (temp.value) {
-            Pointer ptr = toAddress(ScratchRegister, temp.value, argumentNumber, 0);
-            loadArgumentOnStack<StackSlot>(ptr, argumentNumber);
-        } else {
-            RegisterSizeDependentOps::zeroStackSlot(this, StackSlot);
-        }
-    }
-
-    template <int StackSlot>
-    void loadArgumentOnStack(StringToIndex temp, int argumentNumber)
-    {
-        Q_UNUSED(argumentNumber);
-        loadStringRef(ScratchRegister, temp.string);
-        poke(ScratchRegister, StackSlot);
-    }
-
-    template <int StackSlot>
-    void loadArgumentOnStack(Reference temp, int argumentNumber)
-    {
-        Q_ASSERT (temp.value);
-
-        Pointer ptr = loadAddressForReading(ScratchRegister, temp.value);
-        loadArgumentOnStack<StackSlot>(ptr, argumentNumber);
-    }
-
-    void loadDouble(IR::Expr *source, FPRegisterID dest)
-    {
-        IR::Temp *sourceTemp = source->asTemp();
-        if (sourceTemp && sourceTemp->kind == IR::Temp::PhysicalRegister) {
-            moveDouble((FPRegisterID) sourceTemp->index, dest);
-            return;
-        }
-        Pointer ptr = loadAddressForReading(ScratchRegister, source);
-        loadDouble(ptr, dest);
-    }
-
-    void storeDouble(FPRegisterID source, IR::Expr* target)
-    {
-        IR::Temp *targetTemp = target->asTemp();
-        if (targetTemp && targetTemp->kind == IR::Temp::PhysicalRegister) {
-            moveDouble(source, (FPRegisterID) targetTemp->index);
-            return;
-        }
-        RegisterSizeDependentOps::storeDouble(this, source, target);
-    }
-
-    void loadDouble(Address addr, FPRegisterID dest)
-    {
-        RegisterSizeDependentOps::loadDouble(this, addr, dest);
-    }
-
-    void storeDouble(FPRegisterID source, Address addr, WriteBarrier::Type barrier)
-    {
-        RegisterSizeDependentOps::storeDouble(this, source, addr, barrier);
-    }
-
-    template <typename Result, typename Source>
-    void copyValue(Result result, Source source, WriteBarrier::Type barrier);
-    template <typename Result>
-    void copyValue(Result result, IR::Expr* source, WriteBarrier::Type barrier);
-
-    // The scratch register is used to calculate the temp address for the source.
-    void memcopyValue(Pointer target, IR::Expr *source, RegisterID scratchRegister, WriteBarrier::Type barrier)
-    {
-        Q_ASSERT(!source->asTemp() || source->asTemp()->kind != IR::Temp::PhysicalRegister);
-        Q_ASSERT(target.base != scratchRegister);
-        loadRawValue(loadAddressForReading(scratchRegister, source), FPGpr0);
-        storeRawValue(FPGpr0, target, barrier);
-    }
-
-    // The scratch register is used to calculate the temp address for the source.
-    void memcopyValue(IR::Expr *target, Pointer source, FPRegisterID fpScratchRegister, RegisterID scratchRegister)
-    {
-        loadRawValue(source, fpScratchRegister);
-        WriteBarrier::Type barrier;
-        Pointer dest = loadAddressForWriting(scratchRegister, target, &barrier);
-        storeRawValue(fpScratchRegister, dest, barrier);
-    }
-
-    void loadRawValue(Pointer source, FPRegisterID dest)
-    {
-        TargetConfiguration::MacroAssembler::loadDouble(source, dest);
-    }
-
-    void storeRawValue(FPRegisterID source, Pointer dest, WriteBarrier::Type barrier)
-    {
-        TargetConfiguration::MacroAssembler::storeDouble(source, dest);
-        if (WriteBarrier::isRequired<WriteBarrier::Unknown>() && barrier == WriteBarrier::Barrier)
-            RegisterSizeDependentOps::emitWriteBarrier(this, dest);
-    }
-
-    void storeValue(TargetPrimitive value, Address destination, WriteBarrier::Type barrier)
-    {
-        RegisterSizeDependentOps::storeValue(this, value, destination, barrier);
-    }
-
-    void storeValue(TargetPrimitive value, IR::Expr* temp);
-
-    void emitWriteBarrier(Address addr, WriteBarrier::Type barrier) {
-        if (WriteBarrier::isRequired<WriteBarrier::Primitive>() && barrier == WriteBarrier::Barrier)
-            RegisterSizeDependentOps::emitWriteBarrier(this, addr);
-    }
-
-    void enterStandardStackFrame(const RegisterInformation &regularRegistersToSave,
-                                 const RegisterInformation &fpRegistersToSave);
-    void leaveStandardStackFrame(const RegisterInformation &regularRegistersToSave,
-                                 const RegisterInformation &fpRegistersToSave);
-
-    void checkException() {
-        this->load8(Address(EngineRegister, targetStructureOffset(offsetof(QV4::EngineBase, hasException))), ScratchRegister);
-        Jump exceptionThrown = branch32(RelationalCondition::NotEqual, ScratchRegister, TrustedImm32(0));
-        if (catchBlock)
-            addPatch(catchBlock, exceptionThrown);
-        else
-            exceptionPropagationJumps.append(exceptionThrown);
-    }
-    void jumpToExceptionHandler() {
-        Jump exceptionThrown = jump();
-        if (catchBlock)
-            addPatch(catchBlock, exceptionThrown);
-        else
-            exceptionPropagationJumps.append(exceptionThrown);
-    }
-
-    template <int argumentNumber, typename T>
-    void loadArgumentOnStackOrRegister(const T &value)
-    {
-        if (argumentNumber < RegisterArgumentCount)
-            loadArgumentInRegister(value, registerForArgument(argumentNumber), argumentNumber);
-        else
-            loadArgumentOnStack<argumentNumber - RegisterArgumentCount + (StackShadowSpace / RegisterSize)>(value, argumentNumber);
-    }
-
-    template <int argumentNumber>
-    void loadArgumentOnStackOrRegister(const VoidType &value)
-    {
-        Q_UNUSED(value);
-    }
-
-    template <bool selectFirst, int First, int Second>
-    struct Select
-    {
-        enum { Chosen = First };
-    };
-
-    template <int First, int Second>
-    struct Select<false, First, Second>
-    {
-        enum { Chosen = Second };
-    };
-
-    template <int ArgumentIndex, typename Parameter>
-    struct SizeOnStack
-    {
-        enum { Size = Select<ArgumentIndex >= RegisterArgumentCount, RegisterSize, 0>::Chosen };
-    };
-
-    template <int ArgumentIndex>
-    struct SizeOnStack<ArgumentIndex, VoidType>
-    {
-        enum { Size = 0 };
-    };
-
-    template <typename T> bool prepareCall(T &)
-    { return true; }
-
-    bool prepareCall(LookupCall &lookupCall)
-    {
-        // IMPORTANT! See generateLookupCall in qv4isel_masm_p.h for details!
-
-        // load the table from the context
-        loadPtr(Address(EngineRegister, targetStructureOffset(offsetof(QV4::EngineBase, current))), ScratchRegister);
-        loadPtr(Address(ScratchRegister, targetStructureOffset(Heap::ExecutionContextData::baseOffset + offsetof(Heap::ExecutionContextData, lookups))),
-                    lookupCall.addr.base);
-        // pre-calculate the indirect address for the lookupCall table:
-        if (lookupCall.addr.offset)
-            addPtr(TrustedImm32(lookupCall.addr.offset), lookupCall.addr.base);
-        // store it as the first argument
-        loadArgumentOnStackOrRegister<0>(lookupCall.addr.base);
-        // set the destination addresses offset to the getterSetterOffset. The base is the lookupCall table's address
-        lookupCall.addr.offset = lookupCall.getterSetterOffset;
-        return false;
-    }
-
-    template <typename ArgRet, typename Callable, typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5, typename Arg6>
-    void generateFunctionCallImp(bool needsExceptionCheck, ArgRet r, const char* functionName, Callable function, Arg1 arg1, Arg2 arg2, Arg3 arg3, Arg4 arg4, Arg5 arg5, Arg6 arg6)
-    {
-        int stackSpaceNeeded =   SizeOnStack<0, Arg1>::Size
-                               + SizeOnStack<1, Arg2>::Size
-                               + SizeOnStack<2, Arg3>::Size
-                               + SizeOnStack<3, Arg4>::Size
-                               + SizeOnStack<4, Arg5>::Size
-                               + SizeOnStack<5, Arg6>::Size
-                               + StackShadowSpace;
-
-        if (stackSpaceNeeded) {
-            Q_ASSERT(stackSpaceNeeded < (INT_MAX - StackAlignment));
-            stackSpaceNeeded = static_cast<int>(WTF::roundUpToMultipleOf(StackAlignment, stackSpaceNeeded));
-            subPtr(TrustedImm32(stackSpaceNeeded), StackPointerRegister);
-        }
-
-        // First save any arguments that reside in registers, because they could be overwritten
-        // if that register is also used to pass arguments.
-        saveOutRegister<5>(arg6);
-        saveOutRegister<4>(arg5);
-        saveOutRegister<3>(arg4);
-        saveOutRegister<2>(arg3);
-        saveOutRegister<1>(arg2);
-        saveOutRegister<0>(arg1);
-
-        loadArgumentOnStackOrRegister<5>(arg6);
-        loadArgumentOnStackOrRegister<4>(arg5);
-        loadArgumentOnStackOrRegister<3>(arg4);
-        loadArgumentOnStackOrRegister<2>(arg3);
-        loadArgumentOnStackOrRegister<1>(arg2);
-
-        if (prepareCall(function))
-            loadArgumentOnStackOrRegister<0>(arg1);
-
-        if (JITTargetPlatform::gotRegister != -1)
-            load32(Address(JITTargetPlatform::FramePointerRegister, JITTargetPlatform::savedGOTRegisterSlotOnStack()), static_cast<RegisterID>(JITTargetPlatform::gotRegister)); // restore the GOT ptr
-
-        callAbsolute(functionName, function);
-
-        if (stackSpaceNeeded)
-            addPtr(TrustedImm32(stackSpaceNeeded), StackPointerRegister);
-
-        if (needsExceptionCheck) {
-            checkException();
-        }
-
-        storeReturnValue(r);
-
-    }
-
-    template <typename ArgRet, typename Callable, typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5>
-    void generateFunctionCallImp(bool needsExceptionCheck, ArgRet r, const char* functionName, Callable function, Arg1 arg1, Arg2 arg2, Arg3 arg3, Arg4 arg4, Arg5 arg5)
-    {
-        generateFunctionCallImp(needsExceptionCheck, r, functionName, function, arg1, arg2, arg3, arg4, arg5, VoidType());
-    }
-
-    template <typename ArgRet, typename Callable, typename Arg1, typename Arg2, typename Arg3, typename Arg4>
-    void generateFunctionCallImp(bool needsExceptionCheck, ArgRet r, const char* functionName, Callable function, Arg1 arg1, Arg2 arg2, Arg3 arg3, Arg4 arg4)
-    {
-        generateFunctionCallImp(needsExceptionCheck, r, functionName, function, arg1, arg2, arg3, arg4, VoidType(), VoidType());
-    }
-
-    template <typename ArgRet, typename Callable, typename Arg1, typename Arg2, typename Arg3>
-    void generateFunctionCallImp(bool needsExceptionCheck, ArgRet r, const char* functionName, Callable function, Arg1 arg1, Arg2 arg2, Arg3 arg3)
-    {
-        generateFunctionCallImp(needsExceptionCheck, r, functionName, function, arg1, arg2, arg3, VoidType(), VoidType(), VoidType());
-    }
-
-    template <typename ArgRet, typename Callable, typename Arg1, typename Arg2>
-    void generateFunctionCallImp(bool needsExceptionCheck, ArgRet r, const char* functionName, Callable function, Arg1 arg1, Arg2 arg2)
-    {
-        generateFunctionCallImp(needsExceptionCheck, r, functionName, function, arg1, arg2, VoidType(), VoidType(), VoidType(), VoidType());
-    }
-
-    template <typename ArgRet, typename Callable, typename Arg1>
-    void generateFunctionCallImp(bool needsExceptionCheck, ArgRet r, const char* functionName, Callable function, Arg1 arg1)
-    {
-        generateFunctionCallImp(needsExceptionCheck, r, functionName, function, arg1, VoidType(), VoidType(), VoidType(), VoidType(), VoidType());
-    }
-
-    Pointer toAddress(RegisterID tmpReg, IR::Expr *e, int offset, WriteBarrier::Type *barrier)
-    {
-        if (barrier)
-            *barrier = WriteBarrier::NoBarrier;
-        if (IR::Const *c = e->asConst()) {
-            Address addr = _stackLayout->savedRegPointer(offset);
-            Address tagAddr = addr;
-            tagAddr.offset += 4;
-
-            auto v = convertToValue<TargetPrimitive>(c);
-            store32(TrustedImm32(v.value()), addr);
-            store32(TrustedImm32(v.tag()), tagAddr);
-            return Pointer(addr);
-        }
-
-        if (IR::Temp *t = e->asTemp())
-            if (t->kind == IR::Temp::PhysicalRegister)
-                return Pointer(_stackLayout->savedRegPointer(offset));
-
-        return loadAddressForWriting(tmpReg, e, barrier);
-    }
-
-    void storeBool(RegisterID reg, Pointer addr, WriteBarrier::Type barrier)
-    {
-        store32(reg, addr);
-        addr.offset += 4;
-        store32(TrustedImm32(TargetPrimitive::fromBoolean(0).tag()), addr);
-        if (WriteBarrier::isRequired<WriteBarrier::Primitive>() && barrier == WriteBarrier::Barrier)
-            RegisterSizeDependentOps::emitWriteBarrier(this, addr);
-    }
-
-    void storeBool(RegisterID src, RegisterID dest)
-    {
-        move(src, dest);
-    }
-
-    void storeBool(RegisterID reg, IR::Expr *target)
-    {
-        if (IR::Temp *targetTemp = target->asTemp()) {
-            if (targetTemp->kind == IR::Temp::PhysicalRegister) {
-                move(reg, (RegisterID) targetTemp->index);
-                return;
-            }
-        }
-
-        WriteBarrier::Type barrier;
-        Pointer addr = loadAddressForWriting(ScratchRegister, target, &barrier);
-        storeBool(reg, addr, barrier);
-    }
-
-    void storeBool(bool value, IR::Expr *target) {
-        TrustedImm32 trustedValue(value ? 1 : 0);
-
-        if (IR::Temp *targetTemp = target->asTemp()) {
-            if (targetTemp->kind == IR::Temp::PhysicalRegister) {
-                move(trustedValue, (RegisterID) targetTemp->index);
-                return;
-            }
-        }
-
-        move(trustedValue, ScratchRegister);
-        storeBool(ScratchRegister, target);
-    }
-
-    void storeInt32(RegisterID src, RegisterID dest)
-    {
-        move(src, dest);
-    }
-
-    void storeInt32(RegisterID reg, Pointer addr, WriteBarrier::Type barrier)
-    {
-        store32(reg, addr);
-        addr.offset += 4;
-        store32(TrustedImm32(TargetPrimitive::fromInt32(0).tag()), addr);
-        if (WriteBarrier::isRequired<WriteBarrier::Primitive>() && barrier == WriteBarrier::Barrier)
-            RegisterSizeDependentOps::emitWriteBarrier(this, addr);
-    }
-
-    void storeInt32(RegisterID reg, IR::Expr *target)
-    {
-        IR::Temp *targetTemp = target->asTemp();
-        if (targetTemp && targetTemp->kind == IR::Temp::PhysicalRegister) {
-            move(reg, (RegisterID) targetTemp->index);
-        } else {
-            WriteBarrier::Type barrier;
-            Pointer addr = loadAddressForWriting(ScratchRegister, target, &barrier);
-            storeInt32(reg, addr, barrier);
-        }
-    }
-
-    void storeUInt32(RegisterID src, RegisterID dest)
-    {
-        move(src, dest);
-    }
-
-    void storeUInt32(RegisterID reg, Pointer addr, WriteBarrier::Type barrier)
-    {
-        // The UInt32 representation in QV4::Value is really convoluted. See also toUInt32Register.
-        Jump intRange = branch32(RelationalCondition::GreaterThanOrEqual, reg, TrustedImm32(0));
-        convertUInt32ToDouble(reg, FPGpr0, ReturnValueRegister);
-        storeDouble(FPGpr0, addr, barrier);
-        Jump done = jump();
-        intRange.link(this);
-        storeInt32(reg, addr, barrier);
-        done.link(this);
-    }
-
-    void storeUInt32(RegisterID reg, IR::Expr *target)
-    {
-        IR::Temp *targetTemp = target->asTemp();
-        if (targetTemp && targetTemp->kind == IR::Temp::PhysicalRegister) {
-            move(reg, (RegisterID) targetTemp->index);
-        } else {
-            WriteBarrier::Type barrier;
-            Pointer addr = loadAddressForWriting(ScratchRegister, target, &barrier);
-            storeUInt32(reg, addr, barrier);
-        }
-    }
-
-    FPRegisterID toDoubleRegister(IR::Expr *e, FPRegisterID target = FPGpr0)
-    {
-        if (IR::Const *c = e->asConst()) {
-            RegisterSizeDependentOps::loadDoubleConstant(this, c, target);
-            return target;
-        }
-
-        if (IR::Temp *t = e->asTemp())
-            if (t->kind == IR::Temp::PhysicalRegister)
-                return (FPRegisterID) t->index;
-
-        loadDouble(e, target);
-        return target;
-    }
-
-    RegisterID toBoolRegister(IR::Expr *e, RegisterID scratchReg)
-    {
-        return toInt32Register(e, scratchReg);
-    }
-
-    RegisterID toInt32Register(IR::Expr *e, RegisterID scratchReg)
-    {
-        if (IR::Const *c = e->asConst()) {
-            move(TrustedImm32(convertToValue<Primitive>(c).int_32()), scratchReg);
-            return scratchReg;
-        }
-
-        if (IR::Temp *t = e->asTemp())
-            if (t->kind == IR::Temp::PhysicalRegister)
-                return (RegisterID) t->index;
-
-        return toInt32Register(loadAddressForReading(scratchReg, e), scratchReg);
-    }
-
-    RegisterID toInt32Register(Pointer addr, RegisterID scratchReg)
-    {
-        load32(addr, scratchReg);
-        return scratchReg;
-    }
-
-    RegisterID toUInt32Register(IR::Expr *e, RegisterID scratchReg)
-    {
-        if (IR::Const *c = e->asConst()) {
-            move(TrustedImm32(unsigned(c->value)), scratchReg);
-            return scratchReg;
-        }
-
-        if (IR::Temp *t = e->asTemp())
-            if (t->kind == IR::Temp::PhysicalRegister)
-                return (RegisterID) t->index;
-
-        return toUInt32Register(loadAddressForReading(scratchReg, e), scratchReg);
-    }
-
-    RegisterID toUInt32Register(Pointer addr, RegisterID scratchReg)
-    {
-        Q_ASSERT(addr.base != scratchReg);
-
-        // The UInt32 representation in QV4::Value is really convoluted. See also storeUInt32.
-        Pointer tagAddr = addr;
-        tagAddr.offset += 4;
-        load32(tagAddr, scratchReg);
-        Jump inIntRange = branch32(RelationalCondition::Equal, scratchReg, TrustedImm32(quint32(ValueTypeInternal::Integer)));
-
-        // it's not in signed int range, so load it as a double, and truncate it down
-        loadDouble(addr, FPGpr0);
-        Address inversionAddress = loadConstant(TargetPrimitive::fromDouble(double(INT_MAX) + 1), scratchReg);
-        subDouble(inversionAddress, FPGpr0);
-        Jump canNeverHappen = branchTruncateDoubleToUint32(FPGpr0, scratchReg);
-        canNeverHappen.link(this);
-        or32(TrustedImm32(1 << 31), scratchReg);
-        Jump done = jump();
-
-        inIntRange.link(this);
-        load32(addr, scratchReg);
-
-        done.link(this);
-        return scratchReg;
-    }
-
-    void returnFromFunction(IR::Ret *s, RegisterInformation regularRegistersToSave, RegisterInformation fpRegistersToSave);
-
-    JSC::MacroAssemblerCodeRef link(int *codeSize);
-
-    void setStackLayout(int maxArgCountForBuiltins, int regularRegistersToSave, int fpRegistersToSave);
-    const StackLayout &stackLayout() const { return *_stackLayout.data(); }
-    void initializeLocalVariables()
-    {
-        const int locals = _stackLayout->calculateJSStackFrameSize();
-        if (locals <= 0)
-            return;
-        loadPtr(Address(JITTargetPlatform::EngineRegister, targetStructureOffset(offsetof(EngineBase, jsStackTop))), JITTargetPlatform::LocalsRegister);
-        RegisterSizeDependentOps::initializeLocalVariables(this, locals);
-        storePtr(JITTargetPlatform::LocalsRegister, Address(JITTargetPlatform::EngineRegister, targetStructureOffset(offsetof(EngineBase, jsStackTop))));
-    }
-
-    Label exceptionReturnLabel;
-    IR::BasicBlock * catchBlock;
-    QVector<Jump> exceptionPropagationJumps;
-private:
-    QScopedPointer<const StackLayout> _stackLayout;
-    IR::Function *_function;
-    std::vector<Label> _addrs;
-    std::vector<std::vector<Jump>> _patches;
-#ifndef QT_NO_DEBUG
-    QVector<CallInfo> _callInfos;
-#endif
-
-    struct DataLabelPatch {
-        DataLabelPtr dataLabel;
-        Label target;
-    };
-    std::vector<DataLabelPatch> _dataLabelPatches;
-
-    std::vector<std::vector<DataLabelPtr>> _labelPatches;
-    IR::BasicBlock *_nextBlock;
-
-    QV4::ExecutableAllocator *_executableAllocator;
-    QV4::Compiler::JSUnitGenerator *_jsGenerator;
-};
-
-template <typename TargetConfiguration>
-const typename Assembler<TargetConfiguration>::VoidType Assembler<TargetConfiguration>::Void;
-
-template <typename TargetConfiguration>
-template <typename Result, typename Source>
-void Assembler<TargetConfiguration>::copyValue(Result result, Source source, WriteBarrier::Type barrier)
-{
-    RegisterSizeDependentOps::copyValueViaRegisters(this, source, result, barrier);
-}
-
-template <typename TargetConfiguration>
-template <typename Result>
-void Assembler<TargetConfiguration>::copyValue(Result result, IR::Expr* source, WriteBarrier::Type barrier)
-{
-    if (source->type == IR::BoolType) {
-        RegisterID reg = toInt32Register(source, ScratchRegister);
-        storeBool(reg, result, barrier);
-    } else if (source->type == IR::SInt32Type) {
-        RegisterID reg = toInt32Register(source, ScratchRegister);
-        storeInt32(reg, result, barrier);
-    } else if (source->type == IR::UInt32Type) {
-        RegisterID reg = toUInt32Register(source, ScratchRegister);
-        storeUInt32(reg, result, barrier);
-    } else if (source->type == IR::DoubleType) {
-        storeDouble(toDoubleRegister(source), result, barrier);
-    } else if (source->asTemp() || source->asArgLocal()) {
-        RegisterSizeDependentOps::copyValueViaRegisters(this, source, result, barrier);
-    } else if (IR::Const *c = source->asConst()) {
-        auto v = convertToValue<TargetPrimitive>(c);
-        storeValue(v, result, barrier);
-    } else {
-        Q_UNREACHABLE();
-    }
-}
-
-template <typename TargetConfiguration>
-inline Assembler<TargetConfiguration>::RuntimeCall::RuntimeCall(Runtime::RuntimeMethods method)
-    : addr(Assembler::EngineRegister,
-           method == Runtime::InvalidRuntimeMethod ? -1 : (Assembler<TargetConfiguration>::targetStructureOffset(offsetof(EngineBase, runtime) + Runtime::runtimeMethodOffset(method))))
-{
-}
-
-} // end of namespace JIT
-} // end of namespace QV4
-
-QT_END_NAMESPACE
-
-#endif // ENABLE(ASSEMBLER)
-
-#endif // QV4ISEL_MASM_P_H