[stubs] Port StoreGlobalStub to TurboFan.

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/code-stub-assembler.h"
@@ skipping 73 matching lines @@
   /* ishell before doing anything  */         \
   V(KeyedLoadGeneric)                         \
   V(KeyedLoadSloppyArguments)                 \
   V(KeyedStoreSloppyArguments)                \
   V(LoadConstant)                             \
   V(LoadDictionaryElement)                    \
   V(LoadFastElement)                          \
   V(LoadField)                                \
   V(LoadScriptContextField)                   \
   V(StoreFastElement)                         \
-  V(StoreGlobal)                              \
   V(StoreScriptContextField)                  \
   V(StoreTransition)                          \
   /* These should never be ported to TF */    \
   /* because they are either used only by */  \
   /* FCG/Crankshaft or are deprecated */      \
   V(BinaryOpIC)                               \
   V(BinaryOpWithAllocationSite)               \
   V(ToBooleanIC)                              \
   V(RegExpConstructResult)                    \
   V(TransitionElementsKind)                   \
@@ skipping 56 matching lines @@
   V(StringGreaterThan)                        \
   V(StringGreaterThanOrEqual)                 \
   V(ToInteger)                                \
   V(ToLength)                                 \
   V(HasProperty)                              \
   V(ForInFilter)                              \
   V(GetProperty)                              \
   V(LoadICTF)                                 \
   V(KeyedLoadICTF)                            \
   V(StoreField)                               \
+  V(StoreGlobal)                              \
   V(StoreInterceptor)                         \
   V(LoadApiGetter)                            \
   V(LoadIndexedInterceptor)                   \
   V(GrowArrayElements)                        \
   /* These are only called from FGC and */    \
   /* can be removed when we use ignition */   \
   /* only */                                  \
   V(LoadICTrampolineTF)                       \
   V(LoadGlobalICTrampoline)                   \
   V(KeyedLoadICTrampolineTF)
@@ skipping 1586 matching lines @@
 
  private:
   class StoreFieldByIndexBits : public BitField<int, 0, 13> {};
   class RepresentationBits : public BitField<uint8_t, 13, 4> {};
   class StoreModeBits : public BitField<StoreMode, 17, 2> {};
 
   DEFINE_CALL_INTERFACE_DESCRIPTOR(VectorStoreTransition);
   DEFINE_HANDLER_CODE_STUB(StoreTransition, HandlerStub);
 };
 
-
-class StoreGlobalStub : public HandlerStub {
+class StoreGlobalStub : public TurboFanCodeStub {
  public:
   StoreGlobalStub(Isolate* isolate, PropertyCellType type,
                   Maybe<PropertyCellConstantType> constant_type,
                   bool check_global)
-      : HandlerStub(isolate) {
+      : TurboFanCodeStub(isolate) {
     PropertyCellConstantType encoded_constant_type =
         constant_type.FromMaybe(PropertyCellConstantType::kSmi);
-    set_sub_minor_key(CellTypeBits::encode(type) |
-                      ConstantTypeBits::encode(encoded_constant_type) |
-                      CheckGlobalBits::encode(check_global));
+    minor_key_ = CellTypeBits::encode(type) |
+                 ConstantTypeBits::encode(encoded_constant_type) |
+                 CheckGlobalBits::encode(check_global);
   }
 
+  Code::Kind GetCodeKind() const override { return Code::HANDLER; }
+  ExtraICState GetExtraICState() const override { return Code::STORE_IC; }
+
   static Handle<HeapObject> property_cell_placeholder(Isolate* isolate) {
     return isolate->factory()->uninitialized_value();
   }
 
   static Handle<HeapObject> global_map_placeholder(Isolate* isolate) {
     return isolate->factory()->termination_exception();
   }
 
   Handle<Code> GetCodeCopyFromTemplate(Handle<JSGlobalObject> global,
                                        Handle<PropertyCell> cell) {
     Code::FindAndReplacePattern pattern;
     if (check_global()) {
       pattern.Add(handle(global_map_placeholder(isolate())->map()),
                   Map::WeakCellForMap(Handle<Map>(global->map())));
     }
     pattern.Add(handle(property_cell_placeholder(isolate())->map()),
                 isolate()->factory()->NewWeakCell(cell));
     return CodeStub::GetCodeCopy(pattern);
   }
 
-  Code::Kind kind() const override { return Code::STORE_IC; }
-
   PropertyCellType cell_type() const {
-    return CellTypeBits::decode(sub_minor_key());
+    return CellTypeBits::decode(minor_key_);
   }
 
   PropertyCellConstantType constant_type() const {
     DCHECK(PropertyCellType::kConstantType == cell_type());
-    return ConstantTypeBits::decode(sub_minor_key());
+    return ConstantTypeBits::decode(minor_key_);
   }
 
-  bool check_global() const { return CheckGlobalBits::decode(sub_minor_key()); }
-
-  Representation representation() {
-    return Representation::FromKind(
-        RepresentationBits::decode(sub_minor_key()));
-  }
-
-  void set_representation(Representation r) {
-    set_sub_minor_key(RepresentationBits::update(sub_minor_key(), r.kind()));
-  }
+  bool check_global() const { return CheckGlobalBits::decode(minor_key_); }
 
  private:
   class CellTypeBits : public BitField<PropertyCellType, 0, 2> {};
-  class ConstantTypeBits : public BitField<PropertyCellConstantType, 2, 2> {};
-  class RepresentationBits : public BitField<Representation::Kind, 4, 8> {};
-  class CheckGlobalBits : public BitField<bool, 12, 1> {};
+  class ConstantTypeBits
+      : public BitField<PropertyCellConstantType, CellTypeBits::kNext, 2> {};
+  class CheckGlobalBits : public BitField<bool, ConstantTypeBits::kNext, 1> {};
 
-  // TODO(ishell): The stub uses only kValue parameter.
   DEFINE_CALL_INTERFACE_DESCRIPTOR(StoreWithVector);
-  DEFINE_HANDLER_CODE_STUB(StoreGlobal, HandlerStub);
+  DEFINE_TURBOFAN_CODE_STUB(StoreGlobal, TurboFanCodeStub);
 };
 
 // TODO(ishell): remove, once StoreGlobalIC is implemented.
 class StoreGlobalViaContextStub final : public PlatformCodeStub {
  public:
   static const int kMaximumDepth = 15;
 
   StoreGlobalViaContextStub(Isolate* isolate, int depth,
                             LanguageMode language_mode)
       : PlatformCodeStub(isolate) {
@@ skipping 1374 matching lines @@
 #undef DEFINE_HYDROGEN_CODE_STUB
 #undef DEFINE_CODE_STUB
 #undef DEFINE_CODE_STUB_BASE
 
 extern Representation RepresentationFromMachineType(MachineType type);
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CODE_STUBS_H_