[stubs] Port StoreFastElementsStub to TurboFan.

This CL adds CSA::Retain() operation that ensures that the value is kept alive even during GC.

BUG=v8:5269

Review-Url: https://codereview.chromium.org/2330063002
Cr-Commit-Position: refs/heads/master@{#39407}

src/code-stub-assembler.h

@@ -662,6 +662,30 @@ class CodeStubAssembler : public compiler::CodeAssembler {
   // Loads script context from the script context table.
   compiler::Node* LoadScriptContext(compiler::Node* context, int context_index);
 
+  compiler::Node* ClampedToUint8(compiler::Node* int32_value);
+
+  // Store value to an elements array with given elements kind.
+  void StoreElement(compiler::Node* elements, ElementsKind kind,
+                    compiler::Node* index, compiler::Node* value,
+                    ParameterMode mode);
+
+  void EmitElementStore(compiler::Node* object, compiler::Node* key,
+                        compiler::Node* value, bool is_jsarray,
+                        ElementsKind elements_kind,
+                        KeyedAccessStoreMode store_mode, Label* bailout);
+
+  compiler::Node* CheckForCapacityGrow(compiler::Node* object,
+                                       compiler::Node* elements,
+                                       ElementsKind kind,
+                                       compiler::Node* length,
+                                       compiler::Node* key, ParameterMode mode,
+                                       bool is_js_array, Label* bailout);
+
+  compiler::Node* CopyElementsOnWrite(compiler::Node* object,
+                                      compiler::Node* elements,
+                                      ElementsKind kind, compiler::Node* length,
+                                      ParameterMode mode, Label* bailout);
+
   void LoadIC(const LoadICParameters* p);
   void LoadGlobalIC(const LoadICParameters* p);
   void KeyedLoadIC(const LoadICParameters* p);

src/code-stubs-hydrogen.cc

@@ -976,23 +976,6 @@ Handle<Code> StoreTransitionStub::GenerateCode() {
 }
 
 
-template <>
-HValue* CodeStubGraphBuilder<StoreFastElementStub>::BuildCodeStub() {
-  BuildUncheckedMonomorphicElementAccess(
-      GetParameter(Descriptor::kReceiver), GetParameter(Descriptor::kName),
-      GetParameter(Descriptor::kValue), casted_stub()->is_js_array(),
-      casted_stub()->elements_kind(), STORE, NEVER_RETURN_HOLE,
-      casted_stub()->store_mode());
-
-  return GetParameter(Descriptor::kValue);
-}
-
-
-Handle<Code> StoreFastElementStub::GenerateCode() {
-  return DoGenerateCode(this);
-}
-
-
 template <>
 HValue* CodeStubGraphBuilder<TransitionElementsKindStub>::BuildCodeStub() {
   ElementsKind const from_kind = casted_stub()->from_kind();

src/code-stubs.cc

@@ -5122,13 +5122,6 @@ CallInterfaceDescriptor HandlerStub::GetCallInterfaceDescriptor() const {
 }
 
 
-void StoreFastElementStub::InitializeDescriptor(
-    CodeStubDescriptor* descriptor) {
-  descriptor->Initialize(
-      FUNCTION_ADDR(Runtime_KeyedStoreIC_MissFromStubFailure));
-}
-
-
 void ElementsTransitionAndStoreStub::InitializeDescriptor(
     CodeStubDescriptor* descriptor) {
   descriptor->Initialize(
@@ -5680,6 +5673,35 @@ void StoreElementStub::Generate(MacroAssembler* masm) {
   ElementHandlerCompiler::GenerateStoreSlow(masm);
 }
 
+void StoreFastElementStub::GenerateAssembly(
+    CodeStubAssembler* assembler) const {
+  typedef CodeStubAssembler::Label Label;
+  typedef compiler::Node Node;
+
+  assembler->Comment(
+      "StoreFastElementStub: js_array=%d, elements_kind=%s, store_mode=%d",
+      is_js_array(), ElementsKindToString(elements_kind()), store_mode());
+
+  Node* receiver = assembler->Parameter(Descriptor::kReceiver);
+  Node* key = assembler->Parameter(Descriptor::kName);
+  Node* value = assembler->Parameter(Descriptor::kValue);
+  Node* slot = assembler->Parameter(Descriptor::kSlot);
+  Node* vector = assembler->Parameter(Descriptor::kVector);
+  Node* context = assembler->Parameter(Descriptor::kContext);
+
+  Label miss(assembler);
+
+  assembler->EmitElementStore(receiver, key, value, is_js_array(),
+                              elements_kind(), store_mode(), &miss);
+  assembler->Return(value);
+
+  assembler->Bind(&miss);
+  {
+    assembler->Comment("Miss");
+    assembler->TailCallRuntime(Runtime::kKeyedStoreIC_Miss, context, receiver,
+                               key, value, slot, vector);
+  }
+}
 
 // static
 void StoreFastElementStub::GenerateAheadOfTime(Isolate* isolate) {

src/code-stubs.h

@@ -86,7 +86,6 @@ class ObjectLiteral;
   V(LoadDictionaryElement)                    \
   V(LoadFastElement)                          \
   V(LoadField)                                \
-  V(StoreFastElement)                         \
   V(StoreTransition)                          \
   /* These should never be ported to TF */    \
   /* because they are either used only by */  \
@@ -165,6 +164,7 @@ class ObjectLiteral;
   V(GetProperty)                              \
   V(LoadICTF)                                 \
   V(KeyedLoadICTF)                            \
+  V(StoreFastElement)                         \
   V(StoreField)                               \
   V(StoreGlobal)                              \
   V(StoreInterceptor)                         \
@@ -2774,38 +2774,38 @@ class LoadFastElementStub : public HandlerStub {
   DEFINE_HANDLER_CODE_STUB(LoadFastElement, HandlerStub);
 };
 
-
-class StoreFastElementStub : public HydrogenCodeStub {
+class StoreFastElementStub : public TurboFanCodeStub {
  public:
   StoreFastElementStub(Isolate* isolate, bool is_js_array,
                        ElementsKind elements_kind, KeyedAccessStoreMode mode)
-      : HydrogenCodeStub(isolate) {
-    set_sub_minor_key(CommonStoreModeBits::encode(mode) |
-                      ElementsKindBits::encode(elements_kind) |
-                      IsJSArrayBits::encode(is_js_array));
+      : TurboFanCodeStub(isolate) {
+    minor_key_ = CommonStoreModeBits::encode(mode) |
+                 ElementsKindBits::encode(elements_kind) |
+                 IsJSArrayBits::encode(is_js_array);
   }
 
   static void GenerateAheadOfTime(Isolate* isolate);
 
-  bool is_js_array() const { return IsJSArrayBits::decode(sub_minor_key()); }
+  bool is_js_array() const { return IsJSArrayBits::decode(minor_key_); }
 
   ElementsKind elements_kind() const {
-    return ElementsKindBits::decode(sub_minor_key());
+    return ElementsKindBits::decode(minor_key_);
   }
 
   KeyedAccessStoreMode store_mode() const {
-    return CommonStoreModeBits::decode(sub_minor_key());
+    return CommonStoreModeBits::decode(minor_key_);
   }
 
   Code::Kind GetCodeKind() const override { return Code::HANDLER; }
   ExtraICState GetExtraICState() const override { return Code::KEYED_STORE_IC; }
 
  private:
-  class ElementsKindBits : public BitField<ElementsKind, 3, 8> {};
-  class IsJSArrayBits : public BitField<bool, 11, 1> {};
+  class ElementsKindBits
+      : public BitField<ElementsKind, CommonStoreModeBits::kNext, 8> {};
+  class IsJSArrayBits : public BitField<bool, ElementsKindBits::kNext, 1> {};
 
   DEFINE_CALL_INTERFACE_DESCRIPTOR(StoreWithVector);
-  DEFINE_HYDROGEN_CODE_STUB(StoreFastElement, HydrogenCodeStub);
+  DEFINE_TURBOFAN_CODE_STUB(StoreFastElement, TurboFanCodeStub);
 };
 
 
@@ -3004,7 +3004,8 @@ class StoreElementStub : public PlatformCodeStub {
     return ElementsKindBits::decode(minor_key_);
   }
 
-  class ElementsKindBits : public BitField<ElementsKind, 3, 8> {};
+  class ElementsKindBits
+      : public BitField<ElementsKind, CommonStoreModeBits::kNext, 8> {};
 
   DEFINE_PLATFORM_CODE_STUB(StoreElement, PlatformCodeStub);
 };
@@ -3104,7 +3105,8 @@ class ElementsTransitionAndStoreStub : public HydrogenCodeStub {
   ExtraICState GetExtraICState() const override { return Code::KEYED_STORE_IC; }
 
  private:
-  class FromBits : public BitField<ElementsKind, 3, 8> {};
+  class FromBits
+      : public BitField<ElementsKind, CommonStoreModeBits::kNext, 8> {};
   class ToBits : public BitField<ElementsKind, 11, 8> {};
   class IsJSArrayBits : public BitField<bool, 19, 1> {};
 

src/compiler/code-assembler.cc

@@ -306,6 +306,10 @@ Node* CodeAssembler::StoreRoot(Heap::RootListIndex root_index, Node* value) {
                              IntPtrConstant(root_index * kPointerSize), value);
 }
 
+Node* CodeAssembler::Retain(Node* value) {
+  return raw_assembler_->Retain(value);
+}
+
 Node* CodeAssembler::Projection(int index, Node* value) {
   return raw_assembler_->Projection(index, value);
 }

src/compiler/code-assembler.h

@@ -54,6 +54,7 @@ class RawMachineLabel;
   V(IntPtrGreaterThanOrEqual)                    \
   V(IntPtrEqual)                                 \
   V(Uint32LessThan)                              \
+  V(Uint32LessThanOrEqual)                       \
   V(Uint32GreaterThanOrEqual)                    \
   V(UintPtrLessThan)                             \
   V(UintPtrGreaterThan)                          \
@@ -145,6 +146,7 @@ class RawMachineLabel;
   V(ChangeUint32ToFloat64)              \
   V(ChangeUint32ToUint64)               \
   V(RoundFloat64ToInt32)                \
+  V(Float64SilenceNaN)                  \
   V(Float64RoundDown)                   \
   V(Float64RoundUp)                     \
   V(Float64RoundTruncate)               \
@@ -294,6 +296,10 @@ class CodeAssembler {
   // No-op on 32-bit, otherwise sign extend.
   Node* ChangeInt32ToIntPtr(Node* value);
 
+  // No-op that guarantees that the value is kept alive till this point even
+  // if GC happens.
+  Node* Retain(Node* value);
+
   // Projections
   Node* Projection(int index, Node* value);
 

src/compiler/raw-machine-assembler.h

@@ -135,6 +135,7 @@ class RawMachineAssembler {
     return AddNode(machine()->Store(StoreRepresentation(rep, write_barrier)),
                    base, index, value);
   }
+  Node* Retain(Node* value) { return AddNode(common()->Retain(), value); }
 
   // Unaligned memory operations
   Node* UnalignedLoad(MachineType rep, Node* base) {
@@ -659,6 +660,9 @@ class RawMachineAssembler {
   Node* Float64InsertHighWord32(Node* a, Node* b) {
     return AddNode(machine()->Float64InsertHighWord32(), a, b);
   }
+  Node* Float64SilenceNaN(Node* a) {
+    return AddNode(machine()->Float64SilenceNaN(), a);
+  }
 
   // Stack operations.
   Node* LoadStackPointer() { return AddNode(machine()->LoadStackPointer()); }