Merge 6800:7180 from the bleeding edge branch to the experimental/gc branch.

src/x64/lithium-x64.h

Index: src/x64/lithium-x64.h
===================================================================
--- src/x64/lithium-x64.h	(revision 7180)
+++ src/x64/lithium-x64.h	(working copy)
@@ -42,8 +42,6 @@
 #define LITHIUM_ALL_INSTRUCTION_LIST(V)         \
   V(ControlInstruction)                         \
   V(Call)                                       \
-  V(StoreKeyed)                                 \
-  V(StoreNamed)                                 \
   LITHIUM_CONCRETE_INSTRUCTION_LIST(V)
 
 
@@ -74,6 +72,8 @@
   V(CheckMap)                                   \
   V(CheckPrototypeMaps)                         \
   V(CheckSmi)                                   \
+  V(ClassOfTest)                                \
+  V(ClassOfTestAndBranch)                       \
   V(CmpID)                                      \
   V(CmpIDAndBranch)                             \
   V(CmpJSObjectEq)                              \
@@ -89,12 +89,18 @@
   V(Deoptimize)                                 \
   V(DivI)                                       \
   V(DoubleToI)                                  \
+  V(ExternalArrayLength)                        \
+  V(FixedArrayLength)                           \
   V(FunctionLiteral)                            \
   V(Gap)                                        \
+  V(GetCachedArrayIndex)                        \
   V(GlobalObject)                               \
   V(GlobalReceiver)                             \
   V(Goto)                                       \
-  V(FixedArrayLength)                           \
+  V(HasInstanceType)                            \
+  V(HasInstanceTypeAndBranch)                   \
+  V(HasCachedArrayIndex)                        \
+  V(HasCachedArrayIndexAndBranch)               \
   V(InstanceOf)                                 \
   V(InstanceOfAndBranch)                        \
   V(InstanceOfKnownGlobal)                      \
@@ -106,16 +112,11 @@
   V(IsSmi)                                      \
   V(IsSmiAndBranch)                             \
   V(JSArrayLength)                              \
-  V(HasInstanceType)                            \
-  V(HasInstanceTypeAndBranch)                   \
-  V(HasCachedArrayIndex)                        \
-  V(HasCachedArrayIndexAndBranch)               \
-  V(ClassOfTest)                                \
-  V(ClassOfTestAndBranch)                       \
   V(Label)                                      \
   V(LazyBailout)                                \
   V(LoadContextSlot)                            \
   V(LoadElements)                               \
+  V(LoadExternalArrayPointer)                   \
   V(LoadGlobal)                                 \
   V(LoadKeyedFastElement)                       \
   V(LoadKeyedGeneric)                           \
@@ -123,7 +124,6 @@
   V(LoadNamedGeneric)                           \
   V(LoadFunctionPrototype)                      \
   V(LoadPixelArrayElement)                      \
-  V(LoadPixelArrayExternalPointer)              \
   V(ModI)                                       \
   V(MulI)                                       \
   V(NumberTagD)                                 \
@@ -131,8 +131,8 @@
   V(NumberUntagD)                               \
   V(ObjectLiteral)                              \
   V(OsrEntry)                                   \
+  V(OuterContext)                               \
   V(Parameter)                                  \
-  V(PixelArrayLength)                           \
   V(Power)                                      \
   V(PushArgument)                               \
   V(RegExpLiteral)                              \
@@ -141,11 +141,15 @@
   V(SmiTag)                                     \
   V(SmiUntag)                                   \
   V(StackCheck)                                 \
+  V(StoreContextSlot)                           \
   V(StoreGlobal)                                \
   V(StoreKeyedFastElement)                      \
   V(StoreKeyedGeneric)                          \
   V(StoreNamedField)                            \
   V(StoreNamedGeneric)                          \
+  V(StorePixelArrayElement)                     \
+  V(StringCharCodeAt)                           \
+  V(StringCharFromCode)                         \
   V(StringLength)                               \
   V(SubI)                                       \
   V(TaggedToI)                                  \
@@ -728,6 +732,17 @@
 };
 
 
+class LGetCachedArrayIndex: public LTemplateInstruction<1, 1, 0> {
+ public:
+  explicit LGetCachedArrayIndex(LOperand* value) {
+    inputs_[0] = value;
+  }
+
+  DECLARE_CONCRETE_INSTRUCTION(GetCachedArrayIndex, "get-cached-array-index")
+  DECLARE_HYDROGEN_ACCESSOR(GetCachedArrayIndex)
+};
+
+
 class LHasCachedArrayIndex: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LHasCachedArrayIndex(LOperand* value) {
@@ -983,14 +998,14 @@
 };
 
 
-class LPixelArrayLength: public LTemplateInstruction<1, 1, 0> {
+class LExternalArrayLength: public LTemplateInstruction<1, 1, 0> {
  public:
-  explicit LPixelArrayLength(LOperand* value) {
+  explicit LExternalArrayLength(LOperand* value) {
     inputs_[0] = value;
   }
 
-  DECLARE_CONCRETE_INSTRUCTION(PixelArrayLength, "pixel-array-length")
-  DECLARE_HYDROGEN_ACCESSOR(PixelArrayLength)
+  DECLARE_CONCRETE_INSTRUCTION(ExternalArrayLength, "external-array-length")
+  DECLARE_HYDROGEN_ACCESSOR(ExternalArrayLength)
 };
 
 
@@ -1005,11 +1020,10 @@
 };
 
 
-class LValueOf: public LTemplateInstruction<1, 1, 1> {
+class LValueOf: public LTemplateInstruction<1, 1, 0> {
  public:
-  LValueOf(LOperand* value, LOperand* temp) {
+  explicit LValueOf(LOperand* value) {
     inputs_[0] = value;
-    temps_[0] = temp;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(ValueOf, "value-of")
@@ -1155,14 +1169,14 @@
 };
 
 
-class LLoadPixelArrayExternalPointer: public LTemplateInstruction<1, 1, 0> {
+class LLoadExternalArrayPointer: public LTemplateInstruction<1, 1, 0> {
  public:
-  explicit LLoadPixelArrayExternalPointer(LOperand* object) {
+  explicit LLoadExternalArrayPointer(LOperand* object) {
     inputs_[0] = object;
   }
 
-  DECLARE_CONCRETE_INSTRUCTION(LoadPixelArrayExternalPointer,
-                               "load-pixel-array-external-pointer")
+  DECLARE_CONCRETE_INSTRUCTION(LoadExternalArrayPointer,
+                               "load-external-array-pointer")
 };
 
 
@@ -1246,6 +1260,26 @@
 };
 
 
+class LStoreContextSlot: public LTemplateInstruction<0, 2, 1> {
+ public:
+  LStoreContextSlot(LOperand* context, LOperand* value, LOperand* temp) {
+    inputs_[0] = context;
+    inputs_[1] = value;
+    temps_[0] = temp;
+  }
+
+  DECLARE_CONCRETE_INSTRUCTION(StoreContextSlot, "store-context-slot")
+  DECLARE_HYDROGEN_ACCESSOR(StoreContextSlot)
+
+  LOperand* context() { return InputAt(0); }
+  LOperand* value() { return InputAt(1); }
+  int slot_index() { return hydrogen()->slot_index(); }
+  int needs_write_barrier() { return hydrogen()->NeedsWriteBarrier(); }
+
+  virtual void PrintDataTo(StringStream* stream);
+};
+
+
 class LPushArgument: public LTemplateInstruction<0, 1, 0> {
  public:
   explicit LPushArgument(LOperand* value) {
@@ -1262,6 +1296,18 @@
 };
 
 
+class LOuterContext: public LTemplateInstruction<1, 1, 0> {
+ public:
+  explicit LOuterContext(LOperand* context) {
+    inputs_[0] = context;
+  }
+
+  DECLARE_CONCRETE_INSTRUCTION(OuterContext, "outer-context")
+
+  LOperand* context() { return InputAt(0); }
+};
+
+
 class LGlobalObject: public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(GlobalObject, "global-object")
@@ -1295,6 +1341,8 @@
   DECLARE_CONCRETE_INSTRUCTION(CallKeyed, "call-keyed")
   DECLARE_HYDROGEN_ACCESSOR(CallKeyed)
 
+  LOperand* key() { return inputs_[0]; }
+
   virtual void PrintDataTo(StringStream* stream);
 
   int arity() const { return hydrogen()->argument_count() - 1; }
@@ -1315,6 +1363,8 @@
 
 class LCallFunction: public LTemplateInstruction<1, 0, 0> {
  public:
+  LCallFunction() {}
+
   DECLARE_CONCRETE_INSTRUCTION(CallFunction, "call-function")
   DECLARE_HYDROGEN_ACCESSOR(CallFunction)
 
@@ -1403,11 +1453,10 @@
 
 
 // Sometimes truncating conversion from a tagged value to an int32.
-class LDoubleToI: public LTemplateInstruction<1, 1, 1> {
+class LDoubleToI: public LTemplateInstruction<1, 1, 0> {
  public:
-  LDoubleToI(LOperand* value, LOperand* temp) {
+  explicit LDoubleToI(LOperand* value) {
     inputs_[0] = value;
-    temps_[0] = temp;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(DoubleToI, "double-to-i")
@@ -1468,34 +1517,23 @@
 };
 
 
-class LStoreNamed: public LTemplateInstruction<0, 2, 1> {
+class LStoreNamedField: public LTemplateInstruction<0, 2, 1> {
  public:
-  LStoreNamed(LOperand* obj, LOperand* val) {
-    inputs_[0] = obj;
-    inputs_[1] = val;
+  LStoreNamedField(LOperand* object, LOperand* value, LOperand* temp) {
+    inputs_[0] = object;
+    inputs_[1] = value;
+    temps_[0] = temp;
   }
 
-  DECLARE_INSTRUCTION(StoreNamed)
-  DECLARE_HYDROGEN_ACCESSOR(StoreNamed)
+  DECLARE_CONCRETE_INSTRUCTION(StoreNamedField, "store-named-field")
+  DECLARE_HYDROGEN_ACCESSOR(StoreNamedField)
 
   virtual void PrintDataTo(StringStream* stream);
 
   LOperand* object() { return inputs_[0]; }
   LOperand* value() { return inputs_[1]; }
+
   Handle<Object> name() const { return hydrogen()->name(); }
-};
-
-
-class LStoreNamedField: public LStoreNamed {
- public:
-  LStoreNamedField(LOperand* obj, LOperand* val, LOperand* temp)
-      : LStoreNamed(obj, val) {
-    temps_[0] = temp;
-  }
-
-  DECLARE_CONCRETE_INSTRUCTION(StoreNamedField, "store-named-field")
-  DECLARE_HYDROGEN_ACCESSOR(StoreNamedField)
-
   bool is_in_object() { return hydrogen()->is_in_object(); }
   int offset() { return hydrogen()->offset(); }
   bool needs_write_barrier() { return hydrogen()->NeedsWriteBarrier(); }
@@ -1503,25 +1541,35 @@
 };
 
 
-class LStoreNamedGeneric: public LStoreNamed {
+class LStoreNamedGeneric: public LTemplateInstruction<0, 2, 0> {
  public:
-  LStoreNamedGeneric(LOperand* obj, LOperand* val)
-      : LStoreNamed(obj, val) { }
+  LStoreNamedGeneric(LOperand* object, LOperand* value) {
+    inputs_[0] = object;
+    inputs_[1] = value;
+  }
 
   DECLARE_CONCRETE_INSTRUCTION(StoreNamedGeneric, "store-named-generic")
   DECLARE_HYDROGEN_ACCESSOR(StoreNamedGeneric)
+
+  virtual void PrintDataTo(StringStream* stream);
+
+  LOperand* object() { return inputs_[0]; }
+  LOperand* value() { return inputs_[1]; }
+  Handle<Object> name() const { return hydrogen()->name(); }
 };
 
 
-class LStoreKeyed: public LTemplateInstruction<0, 3, 0> {
+class LStoreKeyedFastElement: public LTemplateInstruction<0, 3, 0> {
  public:
-  LStoreKeyed(LOperand* obj, LOperand* key, LOperand* val) {
+  LStoreKeyedFastElement(LOperand* obj, LOperand* key, LOperand* val) {
     inputs_[0] = obj;
     inputs_[1] = key;
     inputs_[2] = val;
   }
 
-  DECLARE_INSTRUCTION(StoreKeyed)
+  DECLARE_CONCRETE_INSTRUCTION(StoreKeyedFastElement,
+                               "store-keyed-fast-element")
+  DECLARE_HYDROGEN_ACCESSOR(StoreKeyedFastElement)
 
   virtual void PrintDataTo(StringStream* stream);
 
@@ -1531,26 +1579,72 @@
 };
 
 
-class LStoreKeyedFastElement: public LStoreKeyed {
+class LStorePixelArrayElement: public LTemplateInstruction<0, 3, 0> {
  public:
-  LStoreKeyedFastElement(LOperand* obj, LOperand* key, LOperand* val)
-      : LStoreKeyed(obj, key, val) {}
+  LStorePixelArrayElement(LOperand* external_pointer,
+                          LOperand* key,
+                          LOperand* val) {
+    inputs_[0] = external_pointer;
+    inputs_[1] = key;
+    inputs_[2] = val;
+  }
 
-  DECLARE_CONCRETE_INSTRUCTION(StoreKeyedFastElement,
-                               "store-keyed-fast-element")
-  DECLARE_HYDROGEN_ACCESSOR(StoreKeyedFastElement)
+  DECLARE_CONCRETE_INSTRUCTION(StorePixelArrayElement,
+                               "store-pixel-array-element")
+  DECLARE_HYDROGEN_ACCESSOR(StorePixelArrayElement)
+
+  LOperand* external_pointer() { return inputs_[0]; }
+  LOperand* key() { return inputs_[1]; }
+  LOperand* value() { return inputs_[2]; }
 };
 
 
-class LStoreKeyedGeneric: public LStoreKeyed {
+class LStoreKeyedGeneric: public LTemplateInstruction<0, 3, 0> {
  public:
-  LStoreKeyedGeneric(LOperand* obj, LOperand* key, LOperand* val)
-      : LStoreKeyed(obj, key, val) { }
+  LStoreKeyedGeneric(LOperand* object, LOperand* key, LOperand* value) {
+    inputs_[0] = object;
+    inputs_[1] = key;
+    inputs_[2] = value;
+  }
 
   DECLARE_CONCRETE_INSTRUCTION(StoreKeyedGeneric, "store-keyed-generic")
+
+  virtual void PrintDataTo(StringStream* stream);
+
+  LOperand* object() { return inputs_[0]; }
+  LOperand* key() { return inputs_[1]; }
+  LOperand* value() { return inputs_[2]; }
 };
 
 
+class LStringCharCodeAt: public LTemplateInstruction<1, 2, 0> {
+ public:
+  LStringCharCodeAt(LOperand* string, LOperand* index) {
+    inputs_[0] = string;
+    inputs_[1] = index;
+  }
+
+  DECLARE_CONCRETE_INSTRUCTION(StringCharCodeAt, "string-char-code-at")
+  DECLARE_HYDROGEN_ACCESSOR(StringCharCodeAt)
+
+  LOperand* string() { return inputs_[0]; }
+  LOperand* index() { return inputs_[1]; }
+};
+
+
+class LStringCharFromCode: public LTemplateInstruction<1, 1, 0> {
+ public:
+  explicit LStringCharFromCode(LOperand* char_code) {
+    inputs_[0] = char_code;
+  }
+
+  DECLARE_CONCRETE_INSTRUCTION(StringCharFromCode, "string-char-from-code")
+  DECLARE_HYDROGEN_ACCESSOR(StringCharFromCode)
+
+  LOperand* char_code() { return inputs_[0]; }
+};
+
+
 class LStringLength: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LStringLength(LOperand* string) {
@@ -1764,8 +1858,9 @@
 class LChunkBuilder;
 class LChunk: public ZoneObject {
  public:
-  explicit LChunk(HGraph* graph)
+  explicit LChunk(CompilationInfo* info, HGraph* graph)
     : spill_slot_count_(0),
+      info_(info),
       graph_(graph),
       instructions_(32),
       pointer_maps_(8),
@@ -1782,6 +1877,7 @@
   int ParameterAt(int index);
   int GetParameterStackSlot(int index) const;
   int spill_slot_count() const { return spill_slot_count_; }
+  CompilationInfo* info() const { return info_; }
   HGraph* graph() const { return graph_; }
   const ZoneList<LInstruction*>* instructions() const { return &instructions_; }
   void AddGapMove(int index, LOperand* from, LOperand* to);
@@ -1818,6 +1914,7 @@
 
  private:
   int spill_slot_count_;
+  CompilationInfo* info_;
   HGraph* const graph_;
   ZoneList<LInstruction*> instructions_;
   ZoneList<LPointerMap*> pointer_maps_;
@@ -1827,8 +1924,9 @@
 
 class LChunkBuilder BASE_EMBEDDED {
  public:
-  LChunkBuilder(HGraph* graph, LAllocator* allocator)
+  LChunkBuilder(CompilationInfo* info, HGraph* graph, LAllocator* allocator)
       : chunk_(NULL),
+        info_(info),
         graph_(graph),
         status_(UNUSED),
         current_instruction_(NULL),
@@ -1857,6 +1955,7 @@
   };
 
   LChunk* chunk() const { return chunk_; }
+  CompilationInfo* info() const { return info_; }
   HGraph* graph() const { return graph_; }
 
   bool is_unused() const { return status_ == UNUSED; }
@@ -1963,6 +2062,7 @@
                               HArithmeticBinaryOperation* instr);
 
   LChunk* chunk_;
+  CompilationInfo* info_;
   HGraph* const graph_;
   Status status_;
   HInstruction* current_instruction_;