KeyedLookupCache and DescriptorLookupCache -> lookup-cache{-inl.h,.cc,.h}

src/lookup-inl.h

-// 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/lookup.h"
-
-namespace v8 {
-namespace internal {
-
-// static
-int DescriptorLookupCache::Hash(Object* source, Name* name) {
-  DCHECK(name->IsUniqueName());
-  // Uses only lower 32 bits if pointers are larger.
-  uint32_t source_hash =
-      static_cast<uint32_t>(reinterpret_cast<uintptr_t>(source)) >>
-      kPointerSizeLog2;
-  uint32_t name_hash = name->hash_field();
-  return (source_hash ^ name_hash) % kLength;
-}
-
-int DescriptorLookupCache::Lookup(Map* source, Name* name) {
-  int index = Hash(source, name);
-  Key& key = keys_[index];
-  if ((key.source == source) && (key.name == name)) return results_[index];
-  return kAbsent;
-}
-
-void DescriptorLookupCache::Update(Map* source, Name* name, int result) {
-  DCHECK(result != kAbsent);
-  int index = Hash(source, name);
-  Key& key = keys_[index];
-  key.source = source;
-  key.name = name;
-  results_[index] = result;
-}
-
-}  // namespace internal
-}  // namespace v8