Add m-esr52 at 52.6.0

1 files changed, 635 insertions, 0 deletions

diff --git a/js/src/jit/BaselineJIT.h b/js/src/jit/BaselineJIT.h
new file mode 100644
index 000000000..5e7775a61
--- /dev/null
+++ b/js/src/jit/BaselineJIT.h
@@ -0,0 +1,635 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * vim: set ts=8 sts=4 et sw=4 tw=99:
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef jit_BaselineJIT_h
+#define jit_BaselineJIT_h
+
+#include "mozilla/MemoryReporting.h"
+
+#include "jscntxt.h"
+#include "jscompartment.h"
+
+#include "ds/LifoAlloc.h"
+#include "jit/Bailouts.h"
+#include "jit/IonCode.h"
+#include "jit/MacroAssembler.h"
+#include "vm/TraceLogging.h"
+
+namespace js {
+namespace jit {
+
+class StackValue;
+class BaselineICEntry;
+class ICStub;
+
+class PCMappingSlotInfo
+{
+    uint8_t slotInfo_;
+
+  public:
+    // SlotInfo encoding:
+    //  Bits 0 & 1: number of slots at top of stack which are unsynced.
+    //  Bits 2 & 3: SlotLocation of top slot value (only relevant if numUnsynced > 0).
+    //  Bits 3 & 4: SlotLocation of next slot value (only relevant if numUnsynced > 1).
+    enum SlotLocation { SlotInR0 = 0, SlotInR1 = 1, SlotIgnore = 3 };
+
+    PCMappingSlotInfo()
+      : slotInfo_(0)
+    { }
+
+    explicit PCMappingSlotInfo(uint8_t slotInfo)
+      : slotInfo_(slotInfo)
+    { }
+
+    static inline bool ValidSlotLocation(SlotLocation loc) {
+        return (loc == SlotInR0) || (loc == SlotInR1) || (loc == SlotIgnore);
+    }
+
+    static SlotLocation ToSlotLocation(const StackValue* stackVal);
+
+    inline static PCMappingSlotInfo MakeSlotInfo() { return PCMappingSlotInfo(0); }
+
+    inline static PCMappingSlotInfo MakeSlotInfo(SlotLocation topSlotLoc) {
+        MOZ_ASSERT(ValidSlotLocation(topSlotLoc));
+        return PCMappingSlotInfo(1 | (topSlotLoc << 2));
+    }
+
+    inline static PCMappingSlotInfo MakeSlotInfo(SlotLocation topSlotLoc, SlotLocation nextSlotLoc) {
+        MOZ_ASSERT(ValidSlotLocation(topSlotLoc));
+        MOZ_ASSERT(ValidSlotLocation(nextSlotLoc));
+        return PCMappingSlotInfo(2 | (topSlotLoc << 2) | (nextSlotLoc) << 4);
+    }
+
+    inline unsigned numUnsynced() const {
+        return slotInfo_ & 0x3;
+    }
+    inline SlotLocation topSlotLocation() const {
+        return static_cast<SlotLocation>((slotInfo_ >> 2) & 0x3);
+    }
+    inline SlotLocation nextSlotLocation() const {
+        return static_cast<SlotLocation>((slotInfo_ >> 4) & 0x3);
+    }
+    inline uint8_t toByte() const {
+        return slotInfo_;
+    }
+};
+
+// A CompactBuffer is used to store native code offsets (relative to the
+// previous pc) and PCMappingSlotInfo bytes. To allow binary search into this
+// table, we maintain a second table of "index" entries. Every X ops, the
+// compiler will add an index entry, so that from the index entry to the
+// actual native code offset, we have to iterate at most X times.
+struct PCMappingIndexEntry
+{
+    // jsbytecode offset.
+    uint32_t pcOffset;
+
+    // Native code offset.
+    uint32_t nativeOffset;
+
+    // Offset in the CompactBuffer where data for pcOffset starts.
+    uint32_t bufferOffset;
+};
+
+// Describes a single wasm::ImportExit which jumps (via an import with
+// the given index) directly to a BaselineScript or IonScript.
+struct DependentWasmImport
+{
+    wasm::Instance* instance;
+    size_t importIndex;
+
+    DependentWasmImport(wasm::Instance& instance, size_t importIndex)
+      : instance(&instance),
+        importIndex(importIndex)
+    { }
+};
+
+struct BaselineScript
+{
+  public:
+    // Largest script that the baseline compiler will attempt to compile.
+#if defined(JS_CODEGEN_ARM)
+    // ARM branches can only reach 32MB, and the macroassembler doesn't mitigate
+    // that limitation. Use a stricter limit on the acceptable script size to
+    // avoid crashing when branches go out of range.
+    static const uint32_t MAX_JSSCRIPT_LENGTH = 1000000u;
+#else
+    static const uint32_t MAX_JSSCRIPT_LENGTH = 0x0fffffffu;
+#endif
+
+    // Limit the locals on a given script so that stack check on baseline frames
+    // doesn't overflow a uint32_t value.
+    // (MAX_JSSCRIPT_SLOTS * sizeof(Value)) must fit within a uint32_t.
+    static const uint32_t MAX_JSSCRIPT_SLOTS = 0xffffu;
+
+  private:
+    // Code pointer containing the actual method.
+    HeapPtr<JitCode*> method_;
+
+    // For functions with a call object, template objects to use for the call
+    // object and decl env object (linked via the call object's enclosing
+    // scope).
+    HeapPtr<EnvironmentObject*> templateEnv_;
+
+    // Allocated space for fallback stubs.
+    FallbackICStubSpace fallbackStubSpace_;
+
+    // If non-null, the list of wasm::Modules that contain an optimized call
+    // directly to this script.
+    Vector<DependentWasmImport>* dependentWasmImports_;
+
+    // Native code offset right before the scope chain is initialized.
+    uint32_t prologueOffset_;
+
+    // Native code offset right before the frame is popped and the method
+    // returned from.
+    uint32_t epilogueOffset_;
+
+    // The offsets for the toggledJump instructions for profiler instrumentation.
+    uint32_t profilerEnterToggleOffset_;
+    uint32_t profilerExitToggleOffset_;
+
+    // The offsets and event used for Tracelogger toggling.
+#ifdef JS_TRACE_LOGGING
+# ifdef DEBUG
+    bool traceLoggerScriptsEnabled_;
+    bool traceLoggerEngineEnabled_;
+# endif
+    TraceLoggerEvent traceLoggerScriptEvent_;
+#endif
+
+    // Native code offsets right after the debug prologue VM call returns, or
+    // would have returned. This offset is recorded even when debug mode is
+    // off to aid on-stack debug mode recompilation.
+    //
+    // We don't need one for the debug epilogue because that always happens
+    // right before the epilogue, so we just use the epilogue offset.
+    uint32_t postDebugPrologueOffset_;
+
+  public:
+    enum Flag {
+        // Flag set by JSScript::argumentsOptimizationFailed. Similar to
+        // JSScript::needsArgsObj_, but can be read from JIT code.
+        NEEDS_ARGS_OBJ = 1 << 0,
+
+        // Flag set when discarding JIT code, to indicate this script is
+        // on the stack and should not be discarded.
+        ACTIVE = 1 << 1,
+
+        // Flag set when the script contains any writes to its on-stack
+        // (rather than call object stored) arguments.
+        MODIFIES_ARGUMENTS = 1 << 2,
+
+        // Flag set when compiled for use with Debugger. Handles various
+        // Debugger hooks and compiles toggled calls for traps.
+        HAS_DEBUG_INSTRUMENTATION = 1 << 3,
+
+        // Flag set if this script has ever been Ion compiled, either directly
+        // or inlined into another script. This is cleared when the script's
+        // type information or caches are cleared.
+        ION_COMPILED_OR_INLINED = 1 << 4,
+
+        // Flag is set if this script has profiling instrumentation turned on.
+        PROFILER_INSTRUMENTATION_ON = 1 << 5
+    };
+
+  private:
+    uint32_t flags_;
+
+  private:
+    void trace(JSTracer* trc);
+
+    uint32_t icEntriesOffset_;
+    uint32_t icEntries_;
+
+    uint32_t pcMappingIndexOffset_;
+    uint32_t pcMappingIndexEntries_;
+
+    uint32_t pcMappingOffset_;
+    uint32_t pcMappingSize_;
+
+    // List mapping indexes of bytecode type sets to the offset of the opcode
+    // they correspond to, for use by TypeScript::BytecodeTypes.
+    uint32_t bytecodeTypeMapOffset_;
+
+    // For generator scripts, we store the native code address for each yield
+    // instruction.
+    uint32_t yieldEntriesOffset_;
+
+    // By default tracelogger is disabled. Therefore we disable the logging code
+    // by default. We store the offsets we must patch to enable the logging.
+    uint32_t traceLoggerToggleOffsetsOffset_;
+    uint32_t numTraceLoggerToggleOffsets_;
+
+    // The total bytecode length of all scripts we inlined when we Ion-compiled
+    // this script. 0 if Ion did not compile this script or if we didn't inline
+    // anything.
+    uint16_t inlinedBytecodeLength_;
+
+    // The max inlining depth where we can still inline all functions we inlined
+    // when we Ion-compiled this script. This starts as UINT8_MAX, since we have
+    // no data yet, and won't affect inlining heuristics in that case. The value
+    // is updated when we Ion-compile this script. See makeInliningDecision for
+    // more info.
+    uint8_t maxInliningDepth_;
+
+    // An ion compilation that is ready, but isn't linked yet.
+    IonBuilder *pendingBuilder_;
+
+  public:
+    // Do not call directly, use BaselineScript::New. This is public for cx->new_.
+    BaselineScript(uint32_t prologueOffset, uint32_t epilogueOffset,
+                   uint32_t profilerEnterToggleOffset,
+                   uint32_t profilerExitToggleOffset,
+                   uint32_t postDebugPrologueOffset);
+
+    ~BaselineScript() {
+        // The contents of the fallback stub space are removed and freed
+        // separately after the next minor GC. See BaselineScript::Destroy.
+        MOZ_ASSERT(fallbackStubSpace_.isEmpty());
+    }
+
+    static BaselineScript* New(JSScript* jsscript,
+                               uint32_t prologueOffset, uint32_t epilogueOffset,
+                               uint32_t profilerEnterToggleOffset,
+                               uint32_t profilerExitToggleOffset,
+                               uint32_t postDebugPrologueOffset,
+                               size_t icEntries,
+                               size_t pcMappingIndexEntries, size_t pcMappingSize,
+                               size_t bytecodeTypeMapEntries,
+                               size_t yieldEntries,
+                               size_t traceLoggerToggleOffsetEntries);
+
+    static void Trace(JSTracer* trc, BaselineScript* script);
+    static void Destroy(FreeOp* fop, BaselineScript* script);
+
+    void purgeOptimizedStubs(Zone* zone);
+
+    static inline size_t offsetOfMethod() {
+        return offsetof(BaselineScript, method_);
+    }
+
+    void addSizeOfIncludingThis(mozilla::MallocSizeOf mallocSizeOf, size_t* data,
+                                size_t* fallbackStubs) const {
+        *data += mallocSizeOf(this);
+
+        // |data| already includes the ICStubSpace itself, so use
+        // sizeOfExcludingThis.
+        *fallbackStubs += fallbackStubSpace_.sizeOfExcludingThis(mallocSizeOf);
+    }
+
+    bool active() const {
+        return flags_ & ACTIVE;
+    }
+    void setActive() {
+        flags_ |= ACTIVE;
+    }
+    void resetActive() {
+        flags_ &= ~ACTIVE;
+    }
+
+    void setNeedsArgsObj() {
+        flags_ |= NEEDS_ARGS_OBJ;
+    }
+
+    void setModifiesArguments() {
+        flags_ |= MODIFIES_ARGUMENTS;
+    }
+    bool modifiesArguments() {
+        return flags_ & MODIFIES_ARGUMENTS;
+    }
+
+    void setHasDebugInstrumentation() {
+        flags_ |= HAS_DEBUG_INSTRUMENTATION;
+    }
+    bool hasDebugInstrumentation() const {
+        return flags_ & HAS_DEBUG_INSTRUMENTATION;
+    }
+
+    void setIonCompiledOrInlined() {
+        flags_ |= ION_COMPILED_OR_INLINED;
+    }
+    void clearIonCompiledOrInlined() {
+        flags_ &= ~ION_COMPILED_OR_INLINED;
+    }
+    bool ionCompiledOrInlined() const {
+        return flags_ & ION_COMPILED_OR_INLINED;
+    }
+
+    uint32_t prologueOffset() const {
+        return prologueOffset_;
+    }
+    uint8_t* prologueEntryAddr() const {
+        return method_->raw() + prologueOffset_;
+    }
+
+    uint32_t epilogueOffset() const {
+        return epilogueOffset_;
+    }
+    uint8_t* epilogueEntryAddr() const {
+        return method_->raw() + epilogueOffset_;
+    }
+
+    uint32_t postDebugPrologueOffset() const {
+        return postDebugPrologueOffset_;
+    }
+    uint8_t* postDebugPrologueAddr() const {
+        return method_->raw() + postDebugPrologueOffset_;
+    }
+
+    BaselineICEntry* icEntryList() {
+        return (BaselineICEntry*)(reinterpret_cast<uint8_t*>(this) + icEntriesOffset_);
+    }
+    uint8_t** yieldEntryList() {
+        return (uint8_t**)(reinterpret_cast<uint8_t*>(this) + yieldEntriesOffset_);
+    }
+    PCMappingIndexEntry* pcMappingIndexEntryList() {
+        return (PCMappingIndexEntry*)(reinterpret_cast<uint8_t*>(this) + pcMappingIndexOffset_);
+    }
+    uint8_t* pcMappingData() {
+        return reinterpret_cast<uint8_t*>(this) + pcMappingOffset_;
+    }
+    FallbackICStubSpace* fallbackStubSpace() {
+        return &fallbackStubSpace_;
+    }
+
+    JitCode* method() const {
+        return method_;
+    }
+    void setMethod(JitCode* code) {
+        MOZ_ASSERT(!method_);
+        method_ = code;
+    }
+
+    EnvironmentObject* templateEnvironment() const {
+        return templateEnv_;
+    }
+    void setTemplateEnvironment(EnvironmentObject* templateEnv) {
+        MOZ_ASSERT(!templateEnv_);
+        templateEnv_ = templateEnv;
+    }
+
+    void toggleBarriers(bool enabled, ReprotectCode reprotect = Reprotect) {
+        method()->togglePreBarriers(enabled, reprotect);
+    }
+
+    bool containsCodeAddress(uint8_t* addr) const {
+        return method()->raw() <= addr && addr <= method()->raw() + method()->instructionsSize();
+    }
+
+    BaselineICEntry& icEntry(size_t index);
+    BaselineICEntry& icEntryFromReturnOffset(CodeOffset returnOffset);
+    BaselineICEntry& icEntryFromPCOffset(uint32_t pcOffset);
+    BaselineICEntry& icEntryFromPCOffset(uint32_t pcOffset, BaselineICEntry* prevLookedUpEntry);
+    BaselineICEntry& callVMEntryFromPCOffset(uint32_t pcOffset);
+    BaselineICEntry& stackCheckICEntry(bool earlyCheck);
+    BaselineICEntry& warmupCountICEntry();
+    BaselineICEntry& icEntryFromReturnAddress(uint8_t* returnAddr);
+    uint8_t* returnAddressForIC(const BaselineICEntry& ent);
+
+    size_t numICEntries() const {
+        return icEntries_;
+    }
+
+    void copyICEntries(JSScript* script, const BaselineICEntry* entries, MacroAssembler& masm);
+    void adoptFallbackStubs(FallbackICStubSpace* stubSpace);
+
+    void copyYieldEntries(JSScript* script, Vector<uint32_t>& yieldOffsets);
+
+    PCMappingIndexEntry& pcMappingIndexEntry(size_t index);
+    CompactBufferReader pcMappingReader(size_t indexEntry);
+
+    size_t numPCMappingIndexEntries() const {
+        return pcMappingIndexEntries_;
+    }
+
+    void copyPCMappingIndexEntries(const PCMappingIndexEntry* entries);
+    void copyPCMappingEntries(const CompactBufferWriter& entries);
+
+    uint8_t* nativeCodeForPC(JSScript* script, jsbytecode* pc,
+                             PCMappingSlotInfo* slotInfo = nullptr);
+
+    // Return the bytecode offset for a given native code address. Be careful
+    // when using this method: we don't emit code for some bytecode ops, so
+    // the result may not be accurate.
+    jsbytecode* approximatePcForNativeAddress(JSScript* script, uint8_t* nativeAddress);
+
+    MOZ_MUST_USE bool addDependentWasmImport(JSContext* cx, wasm::Instance& instance, uint32_t idx);
+    void removeDependentWasmImport(wasm::Instance& instance, uint32_t idx);
+    void unlinkDependentWasmImports(FreeOp* fop);
+    void clearDependentWasmImports();
+
+    // Toggle debug traps (used for breakpoints and step mode) in the script.
+    // If |pc| is nullptr, toggle traps for all ops in the script. Else, only
+    // toggle traps at |pc|.
+    void toggleDebugTraps(JSScript* script, jsbytecode* pc);
+
+    void toggleProfilerInstrumentation(bool enable);
+    bool isProfilerInstrumentationOn() const {
+        return flags_ & PROFILER_INSTRUMENTATION_ON;
+    }
+
+#ifdef JS_TRACE_LOGGING
+    void initTraceLogger(JSRuntime* runtime, JSScript* script, const Vector<CodeOffset>& offsets);
+    void toggleTraceLoggerScripts(JSRuntime* runtime, JSScript* script, bool enable);
+    void toggleTraceLoggerEngine(bool enable);
+
+    static size_t offsetOfTraceLoggerScriptEvent() {
+        return offsetof(BaselineScript, traceLoggerScriptEvent_);
+    }
+
+    uint32_t* traceLoggerToggleOffsets() {
+        MOZ_ASSERT(traceLoggerToggleOffsetsOffset_);
+        return reinterpret_cast<uint32_t*>(reinterpret_cast<uint8_t*>(this) +
+                                           traceLoggerToggleOffsetsOffset_);
+    }
+#endif
+
+    void noteAccessedGetter(uint32_t pcOffset);
+    void noteArrayWriteHole(uint32_t pcOffset);
+
+    static size_t offsetOfFlags() {
+        return offsetof(BaselineScript, flags_);
+    }
+    static size_t offsetOfYieldEntriesOffset() {
+        return offsetof(BaselineScript, yieldEntriesOffset_);
+    }
+
+    static void writeBarrierPre(Zone* zone, BaselineScript* script);
+
+    uint32_t* bytecodeTypeMap() {
+        MOZ_ASSERT(bytecodeTypeMapOffset_);
+        return reinterpret_cast<uint32_t*>(reinterpret_cast<uint8_t*>(this) + bytecodeTypeMapOffset_);
+    }
+
+    uint8_t maxInliningDepth() const {
+        return maxInliningDepth_;
+    }
+    void setMaxInliningDepth(uint32_t depth) {
+        MOZ_ASSERT(depth <= UINT8_MAX);
+        maxInliningDepth_ = depth;
+    }
+    void resetMaxInliningDepth() {
+        maxInliningDepth_ = UINT8_MAX;
+    }
+
+    uint16_t inlinedBytecodeLength() const {
+        return inlinedBytecodeLength_;
+    }
+    void setInlinedBytecodeLength(uint32_t len) {
+        if (len > UINT16_MAX)
+            len = UINT16_MAX;
+        inlinedBytecodeLength_ = len;
+    }
+
+    bool hasPendingIonBuilder() const {
+        return !!pendingBuilder_;
+    }
+
+    js::jit::IonBuilder* pendingIonBuilder() {
+        MOZ_ASSERT(hasPendingIonBuilder());
+        return pendingBuilder_;
+    }
+    void setPendingIonBuilder(JSRuntime* maybeRuntime, JSScript* script, js::jit::IonBuilder* builder) {
+        MOZ_ASSERT(script->baselineScript() == this);
+        MOZ_ASSERT(!builder || !hasPendingIonBuilder());
+
+        if (script->isIonCompilingOffThread())
+            script->setIonScript(maybeRuntime, ION_PENDING_SCRIPT);
+
+        pendingBuilder_ = builder;
+
+        // lazy linking cannot happen during asmjs to ion.
+        clearDependentWasmImports();
+
+        script->updateBaselineOrIonRaw(maybeRuntime);
+    }
+    void removePendingIonBuilder(JSScript* script) {
+        setPendingIonBuilder(nullptr, script, nullptr);
+        if (script->maybeIonScript() == ION_PENDING_SCRIPT)
+            script->setIonScript(nullptr, nullptr);
+    }
+
+};
+static_assert(sizeof(BaselineScript) % sizeof(uintptr_t) == 0,
+              "The data attached to the script must be aligned for fast JIT access.");
+
+inline bool
+IsBaselineEnabled(JSContext* cx)
+{
+#ifdef JS_CODEGEN_NONE
+    return false;
+#else
+    return cx->options().baseline();
+#endif
+}
+
+MethodStatus
+CanEnterBaselineMethod(JSContext* cx, RunState& state);
+
+MethodStatus
+CanEnterBaselineAtBranch(JSContext* cx, InterpreterFrame* fp, bool newType);
+
+JitExecStatus
+EnterBaselineMethod(JSContext* cx, RunState& state);
+
+JitExecStatus
+EnterBaselineAtBranch(JSContext* cx, InterpreterFrame* fp, jsbytecode* pc);
+
+void
+FinishDiscardBaselineScript(FreeOp* fop, JSScript* script);
+
+void
+AddSizeOfBaselineData(JSScript* script, mozilla::MallocSizeOf mallocSizeOf, size_t* data,
+                      size_t* fallbackStubs);
+
+void
+ToggleBaselineProfiling(JSRuntime* runtime, bool enable);
+
+void
+ToggleBaselineTraceLoggerScripts(JSRuntime* runtime, bool enable);
+void
+ToggleBaselineTraceLoggerEngine(JSRuntime* runtime, bool enable);
+
+struct BaselineBailoutInfo
+{
+    // Pointer into the current C stack, where overwriting will start.
+    uint8_t* incomingStack;
+
+    // The top and bottom heapspace addresses of the reconstructed stack
+    // which will be copied to the bottom.
+    uint8_t* copyStackTop;
+    uint8_t* copyStackBottom;
+
+    // Fields to store the top-of-stack baseline values that are held
+    // in registers.  The setR0 and setR1 fields are flags indicating
+    // whether each one is initialized.
+    uint32_t setR0;
+    Value valueR0;
+    uint32_t setR1;
+    Value valueR1;
+
+    // The value of the frame pointer register on resume.
+    void* resumeFramePtr;
+
+    // The native code address to resume into.
+    void* resumeAddr;
+
+    // The bytecode pc where we will resume.
+    jsbytecode* resumePC;
+
+    // If resuming into a TypeMonitor IC chain, this field holds the
+    // address of the first stub in that chain.  If this field is
+    // set, then the actual jitcode resumed into is the jitcode for
+    // the first stub, not the resumeAddr above.  The resumeAddr
+    // above, in this case, is pushed onto the stack so that the
+    // TypeMonitor chain can tail-return into the main jitcode when done.
+    ICStub* monitorStub;
+
+    // Number of baseline frames to push on the stack.
+    uint32_t numFrames;
+
+    // If Ion bailed out on a global script before it could perform the global
+    // declaration conflicts check. In such cases the baseline script is
+    // resumed at the first pc instead of the prologue, so an extra flag is
+    // needed to perform the check.
+    bool checkGlobalDeclarationConflicts;
+
+    // The bailout kind.
+    BailoutKind bailoutKind;
+};
+
+uint32_t
+BailoutIonToBaseline(JSContext* cx, JitActivation* activation, JitFrameIterator& iter,
+                     bool invalidate, BaselineBailoutInfo** bailoutInfo,
+                     const ExceptionBailoutInfo* exceptionInfo);
+
+// Mark baseline scripts on the stack as active, so that they are not discarded
+// during GC.
+void
+MarkActiveBaselineScripts(Zone* zone);
+
+MethodStatus
+BaselineCompile(JSContext* cx, JSScript* script, bool forceDebugInstrumentation = false);
+
+} // namespace jit
+} // namespace js
+
+namespace JS {
+
+template <>
+struct DeletePolicy<js::jit::BaselineScript>
+{
+    explicit DeletePolicy(JSRuntime* rt) : rt_(rt) {}
+    void operator()(const js::jit::BaselineScript* script);
+
+  private:
+    JSRuntime* rt_;
+};
+
+} // namespace JS
+
+#endif /* jit_BaselineJIT_h */