[Isolates] Merge crankshaft (r5922 from bleeding_edge).

src/stub-cache.h

 // Copyright 2006-2008 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_STUB_CACHE_H_
 #define V8_STUB_CACHE_H_
 
 #include "arguments.h"
 #include "macro-assembler.h"
+#include "zone-inl.h"
 
 namespace v8 {
 namespace internal {
 
 
 // The stub cache is used for megamorphic calls and property accesses.
 // It maps (map, name, type)->Code*
 
 // The design of the table uses the inline cache stubs used for
 // mono-morphic calls. The beauty of this, we do not have to
@@ skipping 17 matching lines @@
 
 class StubCache {
  public:
   struct Entry {
     String* key;
     Code* value;
   };
 
   void Initialize(bool create_heap_objects);
 
+
   // Computes the right stub matching. Inserts the result in the
   // cache before returning.  This might compile a stub if needed.
-  MUST_USE_RESULT MaybeObject* ComputeLoadNonexistent(String* name,
-                                                      JSObject* receiver);
+  MUST_USE_RESULT MaybeObject* ComputeLoadNonexistent(
+      String* name,
+      JSObject* receiver);
 
   MUST_USE_RESULT MaybeObject* ComputeLoadField(String* name,
                                                 JSObject* receiver,
                                                 JSObject* holder,
                                                 int field_index);
 
-  MUST_USE_RESULT MaybeObject* ComputeLoadCallback(String* name,
-                                                   JSObject* receiver,
-                                                   JSObject* holder,
-                                                   AccessorInfo* callback);
+  MUST_USE_RESULT MaybeObject* ComputeLoadCallback(
+      String* name,
+      JSObject* receiver,
+      JSObject* holder,
+      AccessorInfo* callback);
 
   MUST_USE_RESULT MaybeObject* ComputeLoadConstant(String* name,
                                                    JSObject* receiver,
                                                    JSObject* holder,
                                                    Object* value);
 
-  MUST_USE_RESULT MaybeObject* ComputeLoadInterceptor(String* name,
-                                                      JSObject* receiver,
-                                                      JSObject* holder);
+  MUST_USE_RESULT MaybeObject* ComputeLoadInterceptor(
+      String* name,
+      JSObject* receiver,
+      JSObject* holder);
 
   MUST_USE_RESULT MaybeObject* ComputeLoadNormal();
 
-  MUST_USE_RESULT MaybeObject* ComputeLoadGlobal(String* name,
-                                                 JSObject* receiver,
-                                                 GlobalObject* holder,
-                                                 JSGlobalPropertyCell* cell,
-                                                 bool is_dont_delete);
+
+  MUST_USE_RESULT MaybeObject* ComputeLoadGlobal(
+      String* name,
+      JSObject* receiver,
+      GlobalObject* holder,
+      JSGlobalPropertyCell* cell,
+      bool is_dont_delete);
+
 
   // ---
 
   MUST_USE_RESULT MaybeObject* ComputeKeyedLoadField(String* name,
                                                      JSObject* receiver,
                                                      JSObject* holder,
                                                      int field_index);
 
-  MUST_USE_RESULT MaybeObject* ComputeKeyedLoadCallback(String* name,
-                                                        JSObject* receiver,
-                                                        JSObject* holder,
-                                                        AccessorInfo* callback);
+  MUST_USE_RESULT MaybeObject* ComputeKeyedLoadCallback(
+      String* name,
+      JSObject* receiver,
+      JSObject* holder,
+      AccessorInfo* callback);
 
-  MUST_USE_RESULT MaybeObject* ComputeKeyedLoadConstant(String* name,
-                                                        JSObject* receiver,
-                                                        JSObject* holder,
-                                                        Object* value);
+  MUST_USE_RESULT MaybeObject* ComputeKeyedLoadConstant(
+      String* name,
+      JSObject* receiver,
+      JSObject* holder,
+      Object* value);
 
-  MUST_USE_RESULT MaybeObject* ComputeKeyedLoadInterceptor(String* name,
-                                                           JSObject* receiver,
-                                                           JSObject* holder);
+  MUST_USE_RESULT MaybeObject* ComputeKeyedLoadInterceptor(
+      String* name,
+      JSObject* receiver,
+      JSObject* holder);
 
-  MUST_USE_RESULT MaybeObject* ComputeKeyedLoadArrayLength(String* name,
-                                                           JSArray* receiver);
+  MUST_USE_RESULT MaybeObject* ComputeKeyedLoadArrayLength(
+      String* name,
+      JSArray* receiver);
 
-  MUST_USE_RESULT MaybeObject* ComputeKeyedLoadStringLength(String* name,
-                                                            String* receiver);
+  MUST_USE_RESULT MaybeObject* ComputeKeyedLoadStringLength(
+      String* name,
+      String* receiver);
 
   MUST_USE_RESULT MaybeObject* ComputeKeyedLoadFunctionPrototype(
-      String* name, JSFunction* receiver);
+      String* name,
+      JSFunction* receiver);
+
+  MUST_USE_RESULT MaybeObject* ComputeKeyedLoadSpecialized(
+      JSObject* receiver);
 
   // ---
 
   MUST_USE_RESULT MaybeObject* ComputeStoreField(String* name,
                                                  JSObject* receiver,
                                                  int field_index,
                                                  Map* transition = NULL);
 
   MUST_USE_RESULT MaybeObject* ComputeStoreNormal();
 
-  MUST_USE_RESULT MaybeObject* ComputeStoreGlobal(String* name,
-                                                  GlobalObject* receiver,
-                                                  JSGlobalPropertyCell* cell);
+  MUST_USE_RESULT MaybeObject* ComputeStoreGlobal(
+      String* name,
+      GlobalObject* receiver,
+      JSGlobalPropertyCell* cell);
 
-  MUST_USE_RESULT MaybeObject* ComputeStoreCallback(String* name,
-                                                    JSObject* receiver,
-                                                    AccessorInfo* callback);
+  MUST_USE_RESULT MaybeObject* ComputeStoreCallback(
+      String* name,
+      JSObject* receiver,
+      AccessorInfo* callback);
 
-  MUST_USE_RESULT MaybeObject* ComputeStoreInterceptor(String* name,
-                                                       JSObject* receiver);
+  MUST_USE_RESULT MaybeObject* ComputeStoreInterceptor(
+      String* name,
+      JSObject* receiver);
 
   // ---
 
-  MUST_USE_RESULT MaybeObject* ComputeKeyedStoreField(String* name,
-                                                      JSObject* receiver,
-                                                      int field_index,
-                                                      Map* transition = NULL);
+  MUST_USE_RESULT MaybeObject* ComputeKeyedStoreField(
+      String* name,
+      JSObject* receiver,
+      int field_index,
+      Map* transition = NULL);
+
+  MUST_USE_RESULT MaybeObject* ComputeKeyedStoreSpecialized(
+      JSObject* receiver);
 
   // ---
 
   MUST_USE_RESULT MaybeObject* ComputeCallField(int argc,
                                                 InLoopFlag in_loop,
                                                 Code::Kind,
                                                 String* name,
                                                 Object* object,
                                                 JSObject* holder,
                                                 int index);
 
   MUST_USE_RESULT MaybeObject* ComputeCallConstant(int argc,
-                                              InLoopFlag in_loop,
-                                              Code::Kind,
-                                              String* name,
-                                              Object* object,
-                                              JSObject* holder,
-                                              JSFunction* function);
+                                                   InLoopFlag in_loop,
+                                                   Code::Kind,
+                                                   String* name,
+                                                   Object* object,
+                                                   JSObject* holder,
+                                                   JSFunction* function);
 
   MUST_USE_RESULT MaybeObject* ComputeCallNormal(int argc,
                                                  InLoopFlag in_loop,
                                                  Code::Kind,
                                                  String* name,
                                                  JSObject* receiver);
 
   MUST_USE_RESULT MaybeObject* ComputeCallInterceptor(int argc,
                                                       Code::Kind,
                                                       String* name,
                                                       Object* object,
                                                       JSObject* holder);
 
-  MUST_USE_RESULT MaybeObject* ComputeCallGlobal(int argc,
-                                                 InLoopFlag in_loop,
-                                                 Code::Kind,
-                                                 String* name,
-                                                 JSObject* receiver,
-                                                 GlobalObject* holder,
-                                                 JSGlobalPropertyCell* cell,
-                                                 JSFunction* function);
+  MUST_USE_RESULT MaybeObject* ComputeCallGlobal(
+      int argc,
+      InLoopFlag in_loop,
+      Code::Kind,
+      String* name,
+      JSObject* receiver,
+      GlobalObject* holder,
+      JSGlobalPropertyCell* cell,
+      JSFunction* function);
 
   // ---
 
   MUST_USE_RESULT MaybeObject* ComputeCallInitialize(int argc,
                                                      InLoopFlag in_loop,
                                                      Code::Kind kind);
 
   Handle<Code> ComputeCallInitialize(int argc, InLoopFlag in_loop);
 
   Handle<Code> ComputeKeyedCallInitialize(int argc, InLoopFlag in_loop);
@@ skipping 24 matching lines @@
   MUST_USE_RESULT MaybeObject* ComputeCallDebugPrepareStepIn(int argc,
                                                              Code::Kind kind);
 #endif
 
   // Update cache for entry hash(name, map).
   Code* Set(String* name, Map* map, Code* code);
 
   // Clear the lookup table (@ mark compact collection).
   void Clear();
 
+  // Collect all maps that match the name and flags.
+  void CollectMatchingMaps(ZoneMapList* types,
+                           String* name,
+                           Code::Flags flags);
+
   // Generate code for probing the stub cache table.
   // Arguments extra and extra2 may be used to pass additional scratch
   // registers. Set to no_reg if not needed.
   void GenerateProbe(MacroAssembler* masm,
                      Code::Flags flags,
                      Register receiver,
                      Register name,
                      Register scratch,
                      Register extra,
                      Register extra2 = no_reg);
@@ skipping 102 matching lines @@
 MaybeObject* LoadPropertyWithInterceptorForLoad(RUNTIME_CALLING_CONVENTION);
 MaybeObject* LoadPropertyWithInterceptorForCall(RUNTIME_CALLING_CONVENTION);
 MaybeObject* StoreInterceptorProperty(RUNTIME_CALLING_CONVENTION);
 MaybeObject* CallInterceptorProperty(RUNTIME_CALLING_CONVENTION);
 MaybeObject* KeyedLoadPropertyWithInterceptor(RUNTIME_CALLING_CONVENTION);
 
 
 // The stub compiler compiles stubs for the stub cache.
 class StubCompiler BASE_EMBEDDED {
  public:
-  enum CheckType {
-    RECEIVER_MAP_CHECK,
-    STRING_CHECK,
-    NUMBER_CHECK,
-    BOOLEAN_CHECK
-  };
-
   StubCompiler() : scope_(), masm_(NULL, 256), failure_(NULL) { }
 
   MUST_USE_RESULT MaybeObject* CompileCallInitialize(Code::Flags flags);
   MUST_USE_RESULT MaybeObject* CompileCallPreMonomorphic(Code::Flags flags);
   MUST_USE_RESULT MaybeObject* CompileCallNormal(Code::Flags flags);
   MUST_USE_RESULT MaybeObject* CompileCallMegamorphic(Code::Flags flags);
   MUST_USE_RESULT MaybeObject* CompileCallMiss(Code::Flags flags);
 #ifdef ENABLE_DEBUGGER_SUPPORT
   MUST_USE_RESULT MaybeObject* CompileCallDebugBreak(Code::Flags flags);
   MUST_USE_RESULT MaybeObject* CompileCallDebugPrepareStepIn(Code::Flags flags);
@@ skipping 171 matching lines @@
                                                       JSObject* holder,
                                                       String* name);
 
   MUST_USE_RESULT MaybeObject* CompileLoadGlobal(JSObject* object,
                                                  GlobalObject* holder,
                                                  JSGlobalPropertyCell* cell,
                                                  String* name,
                                                  bool is_dont_delete);
 
  private:
-  MaybeObject* GetCode(PropertyType type, String* name);
+  MUST_USE_RESULT MaybeObject* GetCode(PropertyType type, String* name);
 };
 
 
 class KeyedLoadStubCompiler: public StubCompiler {
  public:
   MUST_USE_RESULT MaybeObject* CompileLoadField(String* name,
                                                 JSObject* object,
                                                 JSObject* holder,
                                                 int index);
 
   MUST_USE_RESULT MaybeObject* CompileLoadCallback(String* name,
                                                    JSObject* object,
                                                    JSObject* holder,
                                                    AccessorInfo* callback);
 
   MUST_USE_RESULT MaybeObject* CompileLoadConstant(String* name,
                                                    JSObject* object,
                                                    JSObject* holder,
                                                    Object* value);
 
   MUST_USE_RESULT MaybeObject* CompileLoadInterceptor(JSObject* object,
                                                       JSObject* holder,
                                                       String* name);
 
   MUST_USE_RESULT MaybeObject* CompileLoadArrayLength(String* name);
   MUST_USE_RESULT MaybeObject* CompileLoadStringLength(String* name);
   MUST_USE_RESULT MaybeObject* CompileLoadFunctionPrototype(String* name);
 
+  MUST_USE_RESULT MaybeObject* CompileLoadSpecialized(JSObject* receiver);
+
  private:
   MaybeObject* GetCode(PropertyType type, String* name);
 };
 
 
 class StoreStubCompiler: public StubCompiler {
  public:
   MUST_USE_RESULT MaybeObject* CompileStoreField(JSObject* object,
                                                  int index,
                                                  Map* transition,
                                                  String* name);
+
   MUST_USE_RESULT MaybeObject* CompileStoreCallback(JSObject* object,
                                                     AccessorInfo* callbacks,
                                                     String* name);
   MUST_USE_RESULT MaybeObject* CompileStoreInterceptor(JSObject* object,
                                                        String* name);
   MUST_USE_RESULT MaybeObject* CompileStoreGlobal(GlobalObject* object,
                                                   JSGlobalPropertyCell* holder,
                                                   String* name);
 
 
  private:
-  MUST_USE_RESULT MaybeObject* GetCode(PropertyType type, String* name);
+  MaybeObject* GetCode(PropertyType type, String* name);
 };
 
 
 class KeyedStoreStubCompiler: public StubCompiler {
  public:
-  MaybeObject* CompileStoreField(JSObject* object,
-                                 int index,
-                                 Map* transition,
-                                 String* name);
+  MUST_USE_RESULT MaybeObject* CompileStoreField(JSObject* object,
+                                                 int index,
+                                                 Map* transition,
+                                                 String* name);
+
+  MUST_USE_RESULT MaybeObject* CompileStoreSpecialized(JSObject* receiver);
 
  private:
   MaybeObject* GetCode(PropertyType type, String* name);
 };
 
 
 // List of functions with custom constant call IC stubs.
 //
 // Installation of custom call generators for the selected builtins is
 // handled by the bootstrapper.
@@ skipping 153 matching lines @@
 
   JSFunction* constant_function_;
   bool is_simple_api_call_;
   FunctionTemplateInfo* expected_receiver_type_;
   CallHandlerInfo* api_call_info_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_STUB_CACHE_H_