[refactoring] Pull AccessorAssembler out of CodeStubAssembler

src/ic/accessor-assembler-impl.h

Index: src/ic/accessor-assembler-impl.h
diff --git a/src/ic/accessor-assembler-impl.h b/src/ic/accessor-assembler-impl.h
new file mode 100644
index 0000000000000000000000000000000000000000..8e6ad2cf816fd7d48e886a77766a01d93b37c72c
--- /dev/null
+++ b/src/ic/accessor-assembler-impl.h
@@ -0,0 +1,176 @@
+// Copyright 2016 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_SRC_IC_ACCESSOR_ASSEMBLER_IMPL_H_
+#define V8_SRC_IC_ACCESSOR_ASSEMBLER_IMPL_H_
+
+#include "src/code-stub-assembler.h"
+
+namespace v8 {
+namespace internal {
+
+namespace compiler {
+class CodeAssemblerState;
+}
+
+using compiler::Node;
+
+#define ACCESSOR_ASSEMBLER_PUBLIC_INTERFACE(V) \
+  V(LoadIC)                                    \
+  V(LoadICTrampoline)                          \
+  V(LoadICProtoArray)                          \
+  V(LoadGlobalIC)                              \
+  V(LoadGlobalICTrampoline)                    \
+  V(KeyedLoadICTF)                             \
+  V(KeyedLoadICTrampolineTF)                   \
+  V(KeyedLoadICMegamorphic)                    \
+  V(StoreIC)                                   \
+  V(StoreICTrampoline)
+// KeyedStoreIC and KeyedStoreICTrampoline need custom handling because of
+// their "language_mode" parameter.
+
+class AccessorAssemblerImpl : public CodeStubAssembler {
+ public:
+  explicit AccessorAssemblerImpl(compiler::CodeAssemblerState* state)
+      : CodeStubAssembler(state) {}
+
+#define DECLARE_PUBLIC_METHOD(Name) void Generate##Name();
+
+  ACCESSOR_ASSEMBLER_PUBLIC_INTERFACE(DECLARE_PUBLIC_METHOD)
+#undef DECLARE_PUBLIC_METHOD
+
+  void GenerateKeyedStoreICTF(LanguageMode language_mode);
+  void GenerateKeyedStoreICTrampolineTF(LanguageMode language_mode);
+
+  void TryProbeStubCache(StubCache* stub_cache, Node* receiver, Node* name,
+                         Label* if_handler, Variable* var_handler,
+                         Label* if_miss);
+
+  Node* StubCachePrimaryOffsetForTesting(Node* name, Node* map) {
+    return StubCachePrimaryOffset(name, map);
+  }
+  Node* StubCacheSecondaryOffsetForTesting(Node* name, Node* map) {
+    return StubCacheSecondaryOffset(name, map);
+  }
+
+ protected:
+  struct LoadICParameters {
+    LoadICParameters(Node* context, Node* receiver, Node* name, Node* slot,
+                     Node* vector)
+        : context(context),
+          receiver(receiver),
+          name(name),
+          slot(slot),
+          vector(vector) {}
+
+    Node* context;
+    Node* receiver;
+    Node* name;
+    Node* slot;
+    Node* vector;
+  };
+
+  struct StoreICParameters : public LoadICParameters {
+    StoreICParameters(Node* context, Node* receiver, Node* name, Node* value,
+                      Node* slot, Node* vector)
+        : LoadICParameters(context, receiver, name, slot, vector),
+          value(value) {}
+    Node* value;
+  };
+
+  void HandleStoreICHandlerCase(const StoreICParameters* p, Node* handler,
+                                Label* miss);
+
+ private:
+  enum ElementSupport { kOnlyProperties, kSupportElements };
+
+  // Stub generation entry points.
+
+  void LoadIC(const LoadICParameters* p);
+  void LoadICProtoArray(const LoadICParameters* p, Node* handler);
+  void LoadGlobalIC(const LoadICParameters* p);
+  void KeyedLoadIC(const LoadICParameters* p);
+  void KeyedLoadICGeneric(const LoadICParameters* p);
+  void StoreIC(const StoreICParameters* p);
+  void KeyedStoreIC(const StoreICParameters* p, LanguageMode language_mode);
+
+  // IC dispatcher behavior.
+
+  // Checks monomorphic case. Returns {feedback} entry of the vector.
+  Node* TryMonomorphicCase(Node* slot, Node* vector, Node* receiver_map,
+                           Label* if_handler, Variable* var_handler,
+                           Label* if_miss);
+  void HandlePolymorphicCase(Node* receiver_map, Node* feedback,
+                             Label* if_handler, Variable* var_handler,
+                             Label* if_miss, int unroll_count);
+  void HandleKeyedStorePolymorphicCase(Node* receiver_map, Node* feedback,
+                                       Label* if_handler, Variable* var_handler,
+                                       Label* if_transition_handler,
+                                       Variable* var_transition_map_cell,
+                                       Label* if_miss);
+
+  // LoadIC implementation.
+
+  void HandleLoadICHandlerCase(
+      const LoadICParameters* p, Node* handler, Label* miss,
+      ElementSupport support_elements = kOnlyProperties);
+
+  void HandleLoadICSmiHandlerCase(const LoadICParameters* p, Node* holder,
+                                  Node* smi_handler, Label* miss,
+                                  ElementSupport support_elements);
+
+  void HandleLoadICProtoHandler(const LoadICParameters* p, Node* handler,
+                                Variable* var_holder, Variable* var_smi_handler,
+                                Label* if_smi_handler, Label* miss);
+
+  Node* EmitLoadICProtoArrayCheck(const LoadICParameters* p, Node* handler,
+                                  Node* handler_length, Node* handler_flags,
+                                  Label* miss);
+
+  // StoreIC implementation.
+
+  void HandleStoreICProtoHandler(const StoreICParameters* p, Node* handler,
+                                 Label* miss);
+  // If |transition| is nullptr then the normal field store is generated or
+  // transitioning store otherwise.
+  void HandleStoreICSmiHandlerCase(Node* handler_word, Node* holder,
+                                   Node* value, Node* transition, Label* miss);
+  // If |transition| is nullptr then the normal field store is generated or
+  // transitioning store otherwise.
+  void HandleStoreFieldAndReturn(Node* handler_word, Node* holder,
+                                 Representation representation, Node* value,
+                                 Node* transition, Label* miss);
+
+  // Low-level helpers.
+
+  void EmitFastElementsBoundsCheck(Node* object, Node* elements,
+                                   Node* intptr_index,
+                                   Node* is_jsarray_condition, Label* miss);
+  void EmitElementLoad(Node* object, Node* elements, Node* elements_kind,
+                       Node* key, Node* is_jsarray_condition, Label* if_hole,
+                       Label* rebox_double, Variable* var_double_value,
+                       Label* unimplemented_elements_kind, Label* out_of_bounds,
+                       Label* miss);
+  void CheckPrototype(Node* prototype_cell, Node* name, Label* miss);
+  void NameDictionaryNegativeLookup(Node* object, Node* name, Label* miss);
+
+  // Stub cache access helpers.
+
+  // This enum is used here as a replacement for StubCache::Table to avoid
+  // including stub cache header.
+  enum StubCacheTable : int;
+
+  Node* StubCachePrimaryOffset(Node* name, Node* map);
+  Node* StubCacheSecondaryOffset(Node* name, Node* seed);
+
+  void TryProbeStubCacheTable(StubCache* stub_cache, StubCacheTable table_id,
+                              Node* entry_offset, Node* name, Node* map,
+                              Label* if_handler, Variable* var_handler,
+                              Label* if_miss);
+};
+
+}  // namespace internal
+}  // namespace v8
+
+#endif  // V8_SRC_IC_ACCESSOR_ASSEMBLER_IMPL_H_