Reland of [stubs] KeyedStoreGeneric: inline dictionary property stores

src/ic/accessor-assembler.cc

 // 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.
 
 #include "src/ic/accessor-assembler.h"
 #include "src/ic/accessor-assembler-impl.h"
 
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/ic/handler-configuration.h"
@@ skipping 1349 matching lines @@
     // Try looking up the property on the receiver; if unsuccessful, look
     // for a handler in the stub cache.
     Comment("DescriptorArray lookup");
 
     // Skip linear search if there are too many descriptors.
     // TODO(jkummerow): Consider implementing binary search.
     // See also TryLookupProperty() which has the same limitation.
     const int32_t kMaxLinear = 210;
     Label stub_cache(this);
     Node* bitfield3 = LoadMapBitField3(receiver_map);
-    Node* nof =
-        DecodeWordFromWord32<Map::NumberOfOwnDescriptorsBits>(bitfield3);
-    GotoIf(UintPtrGreaterThan(nof, IntPtrConstant(kMaxLinear)), &stub_cache);
+    Node* nof = DecodeWord32<Map::NumberOfOwnDescriptorsBits>(bitfield3);
+    GotoIf(Uint32LessThan(Int32Constant(kMaxLinear), nof), &stub_cache);
     Node* descriptors = LoadMapDescriptors(receiver_map);
     Variable var_name_index(this, MachineType::PointerRepresentation());
     Label if_descriptor_found(this);
     DescriptorLookupLinear(key, descriptors, nof, &if_descriptor_found,
                            &var_name_index, &stub_cache);
 
     Bind(&if_descriptor_found);
     {
       LoadPropertyFromFastObject(receiver, receiver_map, descriptors,
                                  var_name_index.value(), &var_details,
@@ skipping 385 matching lines @@
 void AccessorAssembler::GenerateKeyedStoreICTrampolineTF(
     CodeAssemblerState* state, LanguageMode language_mode) {
   AccessorAssemblerImpl assembler(state);
   assembler.GenerateKeyedStoreICTrampolineTF(language_mode);
 }
 
 #undef ACCESSOR_ASSEMBLER_PUBLIC_INTERFACE
 
 }  // namespace internal
 }  // namespace v8