Version 3.7.1

src/code-stubs.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * 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
@@ skipping 12 matching lines @@
 // 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 V8_CODE_STUBS_H_
 #define V8_CODE_STUBS_H_
 
 #include "allocation.h"
 #include "globals.h"
+#include "codegen.h"
 
 namespace v8 {
 namespace internal {
 
 // List of code stubs used on all platforms.
 #define CODE_STUB_LIST_ALL_PLATFORMS(V)  \
   V(CallFunction)                        \
   V(UnaryOp)                             \
   V(BinaryOp)                            \
   V(StringAdd)                           \
@@ skipping 19 matching lines @@
   V(ToNumber)                            \
   V(CounterOp)                           \
   V(ArgumentsAccess)                     \
   V(RegExpConstructResult)               \
   V(NumberToString)                      \
   V(CEntry)                              \
   V(JSEntry)                             \
   V(KeyedLoadElement)                    \
   V(KeyedStoreElement)                   \
   V(DebuggerStatement)                   \
-  V(StringDictionaryLookup)
+  V(StringDictionaryLookup)              \
+  V(ElementsTransitionAndStore)
 
 // List of code stubs only used on ARM platforms.
 #ifdef V8_TARGET_ARCH_ARM
 #define CODE_STUB_LIST_ARM(V)  \
   V(GetProperty)               \
   V(SetProperty)               \
   V(InvokeBuiltin)             \
   V(RegExpCEntry)              \
   V(DirectCEntry)
 #else
@@ skipping 272 matching lines @@
 };
 
 
 class FastCloneShallowArrayStub : public CodeStub {
  public:
   // Maximum length of copied elements array.
   static const int kMaximumClonedLength = 8;
 
   enum Mode {
     CLONE_ELEMENTS,
+    CLONE_DOUBLE_ELEMENTS,
     COPY_ON_WRITE_ELEMENTS
   };
 
   FastCloneShallowArrayStub(Mode mode, int length)
       : mode_(mode),
         length_((mode == COPY_ON_WRITE_ELEMENTS) ? 0 : length) {
     ASSERT(length_ >= 0);
     ASSERT(length_ <= kMaximumClonedLength);
   }
 
   void Generate(MacroAssembler* masm);
 
  private:
   Mode mode_;
   int length_;
 
   Major MajorKey() { return FastCloneShallowArray; }
   int MinorKey() {
-    ASSERT(mode_ == 0 || mode_ == 1);
-    return (length_ << 1) | mode_;
+    ASSERT(mode_ == 0 || mode_ == 1 || mode_ == 2);
+    return length_ * 3 +  mode_;
   }
 };
 
 
 class InstanceofStub: public CodeStub {
  public:
   enum Flags {
     kNoFlags = 0,
     kArgsInRegisters = 1 << 0,
     kCallSiteInlineCheck = 1 << 1,
@@ skipping 623 matching lines @@
   void CheckOddball(MacroAssembler* masm,
                     Type type,
                     Heap::RootListIndex value,
                     bool result);
   void GenerateTypeTransition(MacroAssembler* masm);
 
   Register tos_;
   Types types_;
 };
 
+
+class ElementsTransitionAndStoreStub : public CodeStub {
+ public:
+  ElementsTransitionAndStoreStub(ElementsKind from,
+                                 ElementsKind to,
+                                 bool is_jsarray,
+                                 StrictModeFlag strict_mode)
+      : from_(from),
+        to_(to),
+        is_jsarray_(is_jsarray),
+        strict_mode_(strict_mode) {}
+
+ private:
+  class FromBits:       public BitField<ElementsKind,    0, 8> {};
+  class ToBits:         public BitField<ElementsKind,    8, 8> {};
+  class IsJSArrayBits:  public BitField<bool,           16, 8> {};
+  class StrictModeBits: public BitField<StrictModeFlag, 24, 8> {};
+
+  Major MajorKey() { return ElementsTransitionAndStore; }
+  int MinorKey() {
+    return FromBits::encode(from_) |
+        ToBits::encode(to_) |
+        IsJSArrayBits::encode(is_jsarray_) |
+        StrictModeBits::encode(strict_mode_);
+  }
+
+  void Generate(MacroAssembler* masm);
+
+  ElementsKind from_;
+  ElementsKind to_;
+  bool is_jsarray_;
+  StrictModeFlag strict_mode_;
+
+  DISALLOW_COPY_AND_ASSIGN(ElementsTransitionAndStoreStub);
+};
+
 } }  // namespace v8::internal
 
 #endif  // V8_CODE_STUBS_H_