[KeyedLoadIC] Support Smi "handlers" for simple field loads

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 122 matching lines @@
   V(StringLessThanOrEqual)                  \
   V(StringGreaterThan)                      \
   V(StringGreaterThanOrEqual)               \
   V(ToInteger)                              \
   V(ToLength)                               \
   V(HasProperty)                            \
   V(ForInFilter)                            \
   V(GetProperty)                            \
   V(LoadICTrampolineTF)                     \
   V(LoadICTF)                               \
+  V(KeyedLoadICTrampolineTF)                \
+  V(KeyedLoadICTF)                          \
   /* IC Handler stubs */                    \
   V(KeyedLoadSloppyArguments)               \
   V(KeyedStoreSloppyArguments)              \
   V(LoadApiGetter)                          \
   V(LoadConstant)                           \
   V(LoadFastElement)                        \
   V(LoadField)                              \
   V(LoadIndexedInterceptor)                 \
   V(StoreField)                             \
   V(StoreGlobal)                            \
@@ skipping 2207 matching lines @@
 class KeyedLoadICTrampolineStub : public LoadICTrampolineStub {
  public:
   explicit KeyedLoadICTrampolineStub(Isolate* isolate)
       : LoadICTrampolineStub(isolate) {}
 
   Code::Kind GetCodeKind() const override { return Code::KEYED_LOAD_IC; }
 
   DEFINE_PLATFORM_CODE_STUB(KeyedLoadICTrampoline, LoadICTrampolineStub);
 };
 
+class KeyedLoadICTrampolineTFStub : public LoadICTrampolineTFStub {
+ public:
+  explicit KeyedLoadICTrampolineTFStub(Isolate* isolate)
+      : LoadICTrampolineTFStub(isolate) {}
+
+  void GenerateAssembly(CodeStubAssembler* assembler) const override;
+
+  Code::Kind GetCodeKind() const override { return Code::KEYED_LOAD_IC; }
+
+  DEFINE_CODE_STUB(KeyedLoadICTrampolineTF, LoadICTrampolineTFStub);
+};
+
 class StoreICTrampolineStub : public PlatformCodeStub {
  public:
   StoreICTrampolineStub(Isolate* isolate, const StoreICState& state)
       : PlatformCodeStub(isolate) {
     minor_key_ = state.GetExtraICState();
   }
 
   Code::Kind GetCodeKind() const override { return Code::STORE_IC; }
 
   ExtraICState GetExtraICState() const final {
@@ skipping 98 matching lines @@
 
   Code::Kind GetCodeKind() const override { return Code::KEYED_LOAD_IC; }
 
   DEFINE_CALL_INTERFACE_DESCRIPTOR(LoadWithVector);
   DEFINE_PLATFORM_CODE_STUB(KeyedLoadIC, PlatformCodeStub);
 
  protected:
   void GenerateImpl(MacroAssembler* masm, bool in_frame);
 };
 
+class KeyedLoadICTFStub : public LoadICTFStub {
+ public:
+  explicit KeyedLoadICTFStub(Isolate* isolate) : LoadICTFStub(isolate) {}
+
+  void GenerateAssembly(CodeStubAssembler* assembler) const override;
+
+  Code::Kind GetCodeKind() const override { return Code::KEYED_LOAD_IC; }
+
+  DEFINE_CODE_STUB(KeyedLoadICTF, LoadICTFStub);
+};
+
 class StoreICStub : public PlatformCodeStub {
  public:
   StoreICStub(Isolate* isolate, const StoreICState& state)
       : PlatformCodeStub(isolate) {
     minor_key_ = state.GetExtraICState();
   }
 
   void GenerateForTrampoline(MacroAssembler* masm);
 
   Code::Kind GetCodeKind() const final { return Code::STORE_IC; }
@@ skipping 613 matching lines @@
 #undef DEFINE_HYDROGEN_CODE_STUB
 #undef DEFINE_CODE_STUB
 #undef DEFINE_CODE_STUB_BASE
 
 extern Representation RepresentationFromType(Type* type);
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CODE_STUBS_H_