Removing FLAG_vector_ics.

src/code-stubs.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_CODE_STUBS_H_
 #define V8_CODE_STUBS_H_
 
 #include "src/allocation.h"
 #include "src/assembler.h"
 #include "src/codegen.h"
@@ skipping 59 matching lines @@
   V(FastNewClosure)                         \
   V(FastNewContext)                         \
   V(GrowArrayElements)                      \
   V(InternalArrayNArgumentsConstructor)     \
   V(InternalArrayNoArgumentConstructor)     \
   V(InternalArraySingleArgumentConstructor) \
   V(KeyedLoadGeneric)                       \
   V(LoadScriptContextField)                 \
   V(LoadDictionaryElement)                  \
   V(LoadFastElement)                        \
-  V(MegamorphicLoad)                        \
   V(NameDictionaryLookup)                   \
   V(NumberToString)                         \
   V(Typeof)                                 \
   V(RegExpConstructResult)                  \
   V(StoreFastElement)                       \
   V(StoreScriptContextField)                \
   V(StringAdd)                              \
   V(ToBoolean)                              \
   V(TransitionElementsKind)                 \
   V(VectorRawKeyedLoad)                     \
@@ skipping 889 matching lines @@
  public:
   explicit FunctionPrototypeStub(Isolate* isolate)
       : PlatformCodeStub(isolate) {}
 
   Code::Kind GetCodeKind() const override { return Code::HANDLER; }
 
   // TODO(mvstanton): only the receiver register is accessed. When this is
   // translated to a hydrogen code stub, a new CallInterfaceDescriptor
   // should be created that just uses that register for more efficient code.
   CallInterfaceDescriptor GetCallInterfaceDescriptor() override {
-    if (FLAG_vector_ics) {
-      return VectorLoadICDescriptor(isolate());
-    }
-    return LoadDescriptor(isolate());
+    return VectorLoadICDescriptor(isolate());
   }
 
   DEFINE_PLATFORM_CODE_STUB(FunctionPrototype, PlatformCodeStub);
 };
 
 
 // TODO(mvstanton): Translate to hydrogen code stub.
 class LoadIndexedInterceptorStub : public PlatformCodeStub {
  public:
   explicit LoadIndexedInterceptorStub(Isolate* isolate)
@@ skipping 1065 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(StringCharAtGenerator);
 };
 
 
 class LoadDictionaryElementStub : public HydrogenCodeStub {
  public:
   explicit LoadDictionaryElementStub(Isolate* isolate)
       : HydrogenCodeStub(isolate) {}
 
   CallInterfaceDescriptor GetCallInterfaceDescriptor() override {
-    if (FLAG_vector_ics) {
-      return VectorLoadICDescriptor(isolate());
-    }
-    return LoadDescriptor(isolate());
+    return VectorLoadICDescriptor(isolate());
   }
 
   DEFINE_HYDROGEN_CODE_STUB(LoadDictionaryElement, HydrogenCodeStub);
 };
 
 
 class KeyedLoadGenericStub : public HydrogenCodeStub {
  public:
   explicit KeyedLoadGenericStub(Isolate* isolate) : HydrogenCodeStub(isolate) {}
 
@@ skipping 73 matching lines @@
 class CallIC_ArrayTrampolineStub : public CallICTrampolineStub {
  public:
   CallIC_ArrayTrampolineStub(Isolate* isolate, const CallICState& state)
       : CallICTrampolineStub(isolate, state) {}
 
  private:
   DEFINE_PLATFORM_CODE_STUB(CallIC_ArrayTrampoline, CallICTrampolineStub);
 };
 
 
-class MegamorphicLoadStub : public HydrogenCodeStub {
- public:
-  MegamorphicLoadStub(Isolate* isolate, const LoadICState& state)
-      : HydrogenCodeStub(isolate) {
-    set_sub_minor_key(state.GetExtraICState());
-  }
-
-  Code::Kind GetCodeKind() const override { return Code::LOAD_IC; }
-
-  InlineCacheState GetICState() const final { return MEGAMORPHIC; }
-
-  ExtraICState GetExtraICState() const final {
-    return static_cast<ExtraICState>(sub_minor_key());
-  }
-
-  CallInterfaceDescriptor GetCallInterfaceDescriptor() override {
-    if (FLAG_vector_ics) {
-      return VectorLoadICDescriptor(isolate());
-    }
-    return LoadDescriptor(isolate());
-  }
-
-  DEFINE_HYDROGEN_CODE_STUB(MegamorphicLoad, HydrogenCodeStub);
-};
-
-
 class VectorRawLoadStub : public PlatformCodeStub {
  public:
   explicit VectorRawLoadStub(Isolate* isolate, const LoadICState& state)
       : PlatformCodeStub(isolate) {
     minor_key_ = state.GetExtraICState();
   }
 
   void GenerateForTrampoline(MacroAssembler* masm);
 
   virtual Code::Kind GetCodeKind() const override { return Code::LOAD_IC; }
@@ skipping 160 matching lines @@
   ElementsKind elements_kind() const {
     return ElementsKindBits::decode(sub_minor_key());
   }
 
  private:
   class ElementsKindBits: public BitField<ElementsKind, 0, 8> {};
   class IsJSArrayBits: public BitField<bool, 8, 1> {};
   class CanConvertHoleToUndefined : public BitField<bool, 9, 1> {};
 
   CallInterfaceDescriptor GetCallInterfaceDescriptor() override {
-    if (FLAG_vector_ics) {
-      return VectorLoadICDescriptor(isolate());
-    }
-    return LoadDescriptor(isolate());
+    return VectorLoadICDescriptor(isolate());
   }
 
   DEFINE_HYDROGEN_CODE_STUB(LoadFastElement, HydrogenCodeStub);
 };
 
 
 class StoreFastElementStub : public HydrogenCodeStub {
  public:
   StoreFastElementStub(Isolate* isolate, bool is_js_array,
                        ElementsKind elements_kind, KeyedAccessStoreMode mode)
@@ skipping 493 matching lines @@
 
 #undef DEFINE_CALL_INTERFACE_DESCRIPTOR
 #undef DEFINE_PLATFORM_CODE_STUB
 #undef DEFINE_HANDLER_CODE_STUB
 #undef DEFINE_HYDROGEN_CODE_STUB
 #undef DEFINE_CODE_STUB
 #undef DEFINE_CODE_STUB_BASE
 } }  // namespace v8::internal
 
 #endif  // V8_CODE_STUBS_H_