Imported QtWebKit TP3 (git b57bc6801f1876c3220d5a4bfea33d620d477443)

Change-Id: I3b1d8a2808782c9f34d50240000e20cb38d3680f
Reviewed-by: Konstantin Tokarev <annulen@yandex.ru>

1 files changed, 90 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/ftl/FTLJITCode.h b/Source/JavaScriptCore/ftl/FTLJITCode.h
new file mode 100644
index 000000000..6f90545c9
--- /dev/null
+++ b/Source/JavaScriptCore/ftl/FTLJITCode.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2013, 2015 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#ifndef FTLJITCode_h
+#define FTLJITCode_h
+
+#if ENABLE(FTL_JIT)
+
+#include "B3OpaqueByproducts.h"
+#include "DFGCommonData.h"
+#include "FTLLazySlowPath.h"
+#include "FTLOSRExit.h"
+#include "JITCode.h"
+#include <wtf/RefCountedArray.h>
+
+namespace JSC {
+
+class TrackedReferences;
+
+namespace FTL {
+
+class JITCode : public JSC::JITCode {
+public:
+    JITCode();
+    ~JITCode();
+
+    CodePtr addressForCall(ArityCheckMode) override;
+    void* executableAddressAtOffset(size_t offset) override;
+    void* dataAddressAtOffset(size_t offset) override;
+    unsigned offsetOf(void* pointerIntoCode) override;
+    size_t size() override;
+    bool contains(void*) override;
+
+    void initializeB3Code(CodeRef);
+    void initializeB3Byproducts(std::unique_ptr<B3::OpaqueByproducts>);
+    void initializeAddressForCall(CodePtr);
+    void initializeArityCheckEntrypoint(CodeRef);
+    
+    void validateReferences(const TrackedReferences&) override;
+
+    RegisterSet liveRegistersToPreserveAtExceptionHandlingCallSite(CodeBlock*, CallSiteIndex) override;
+
+    Optional<CodeOrigin> findPC(CodeBlock*, void* pc) override;
+
+    CodeRef b3Code() const { return m_b3Code; }
+    
+    JITCode* ftl() override;
+    DFG::CommonData* dfgCommon() override;
+    static ptrdiff_t commonDataOffset() { return OBJECT_OFFSETOF(JITCode, common); }
+    
+    DFG::CommonData common;
+    SegmentedVector<OSRExit, 8> osrExit;
+    SegmentedVector<OSRExitDescriptor, 8> osrExitDescriptors;
+    Vector<std::unique_ptr<LazySlowPath>> lazySlowPaths;
+    
+private:
+    CodePtr m_addressForCall;
+    CodeRef m_b3Code;
+    std::unique_ptr<B3::OpaqueByproducts> m_b3Byproducts;
+    CodeRef m_arityCheckEntrypoint;
+};
+
+} } // namespace JSC::FTL
+
+#endif // ENABLE(FLT_JIT)
+
+#endif // FTLJITCode_h
+