Vector ICs: Adapting store ic classes for vectors.

src/ic/ic.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_IC_H_
 #define V8_IC_H_
 
 #include "src/ic/ic-state.h"
 #include "src/macro-assembler.h"
 #include "src/messages.h"
@@ skipping 104 matching lines @@
   }
 
   // Configure for most states.
   void ConfigureVectorState(IC::State new_state);
   // Configure the vector for MONOMORPHIC.
   void ConfigureVectorState(Handle<Name> name, Handle<Map> map,
                             Handle<Code> handler);
   // Configure the vector for POLYMORPHIC.
   void ConfigureVectorState(Handle<Name> name, MapHandleList* maps,
                             CodeHandleList* handlers);
+  // Configure the vector for POLYMORPHIC with transitions (only for element
+  // keyed stores).
+  void ConfigureVectorState(MapHandleList* maps,
+                            MapHandleList* transitioned_maps,
+                            CodeHandleList* handlers);
 
   char TransitionMarkFromState(IC::State state);
   void TraceIC(const char* type, Handle<Object> name);
   void TraceIC(const char* type, Handle<Object> name, State old_state,
                State new_state);
 
   MaybeHandle<Object> TypeError(MessageTemplate::Template,
                                 Handle<Object> object, Handle<Object> key);
   MaybeHandle<Object> ReferenceError(Handle<Name> name);
 
@@ skipping 396 matching lines @@
 
   static ExtraICState ComputeExtraICState(LanguageMode flag,
                                           KeyedAccessStoreMode mode) {
     return StoreICState(flag).GetExtraICState() |
            ExtraICStateKeyedAccessStoreMode::encode(mode) |
            IcCheckTypeField::encode(ELEMENT);
   }
 
   static KeyedAccessStoreMode GetKeyedAccessStoreMode(
       ExtraICState extra_state) {
+    DCHECK(!FLAG_vector_stores);
     return ExtraICStateKeyedAccessStoreMode::decode(extra_state);
   }
 
+  KeyedAccessStoreMode GetKeyedAccessStoreMode() {
+    DCHECK(FLAG_vector_stores);
+    return casted_nexus<KeyedStoreICNexus>()->GetKeyedAccessStoreMode();
+  }
+
   static IcCheckType GetKeyType(ExtraICState extra_state) {
+    DCHECK(!FLAG_vector_stores);
     return IcCheckTypeField::decode(extra_state);
   }
 
   KeyedStoreIC(FrameDepth depth, Isolate* isolate,
                KeyedStoreICNexus* nexus = NULL)
       : StoreIC(depth, isolate, nexus) {
     DCHECK(target()->is_keyed_store_stub());
   }
 
   MUST_USE_RESULT MaybeHandle<Object> Store(Handle<Object> object,
                                             Handle<Object> name,
                                             Handle<Object> value);
 
   // Code generators for stub routines.  Only called once at startup.
   static void GenerateInitialize(MacroAssembler* masm) { GenerateMiss(masm); }
   static void GeneratePreMonomorphic(MacroAssembler* masm) {
     GenerateMiss(masm);
   }
   static void GenerateMiss(MacroAssembler* masm);
   static void GenerateSlow(MacroAssembler* masm);
   static void GenerateMegamorphic(MacroAssembler* masm,
                                   LanguageMode language_mode);
 
   static Handle<Code> initialize_stub(Isolate* isolate,
                                       LanguageMode language_mode,
                                       State initialization_state);
 
   static Handle<Code> initialize_stub_in_optimized_code(
       Isolate* isolate, LanguageMode language_mode, State initialization_state);
+  static Handle<Code> ChooseMegamorphicStub(Isolate* isolate,
+                                            ExtraICState extra_state);
 
   static void Clear(Isolate* isolate, Code* host, KeyedStoreICNexus* nexus);
 
  protected:
   virtual Handle<Code> pre_monomorphic_stub() const {
     return pre_monomorphic_stub(isolate(), language_mode());
   }
   static Handle<Code> pre_monomorphic_stub(Isolate* isolate,
                                            LanguageMode language_mode) {
     if (is_strict(language_mode)) {
@@ skipping 91 matching lines @@
 
 
 // Helper for BinaryOpIC and CompareIC.
 enum InlinedSmiCheck { ENABLE_INLINED_SMI_CHECK, DISABLE_INLINED_SMI_CHECK };
 void PatchInlinedSmiCode(Address address, InlinedSmiCheck check);
 
 }
 }  // namespace v8::internal
 
 #endif  // V8_IC_H_