[crankshaft] Remove dead {TypeFeedbackOracle}.

R=mvstanton@chromium.org
BUG=v8:6408

Change-Id: I228d276670a3540cdc593442ae79084b84a915d3
Reviewed-on: https://chromium-review.googlesource.com/538617Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45995}

BUILD.gn

@@ -1988,8 +1988,6 @@ v8_source_set("v8_base") {
     "src/trap-handler/trap-handler.h",
     "src/type-hints.cc",
     "src/type-hints.h",
-    "src/type-info.cc",
-    "src/type-info.h",
     "src/unicode-cache-inl.h",
     "src/unicode-cache.h",
     "src/unicode-decoder.cc",

src/ast/ast-expression-rewriter.h

@@ -8,7 +8,6 @@
 #include "src/allocation.h"
 #include "src/ast/ast.h"
 #include "src/ast/scopes.h"
-#include "src/type-info.h"
 #include "src/zone/zone.h"
 
 namespace v8 {

src/ast/ast.cc

@@ -23,7 +23,6 @@
 #include "src/property-details.h"
 #include "src/property.h"
 #include "src/string-stream.h"
-#include "src/type-info.h"
 
 namespace v8 {
 namespace internal {

src/compiler/pipeline.cc

@@ -74,7 +74,6 @@
 #include "src/parsing/parse-info.h"
 #include "src/register-configuration.h"
 #include "src/trap-handler/trap-handler.h"
-#include "src/type-info.h"
 #include "src/utils.h"
 
 namespace v8 {

src/ic/stub-cache.cc

@@ -9,7 +9,6 @@
 #include "src/counters.h"
 #include "src/heap/heap.h"
 #include "src/ic/ic-inl.h"
-#include "src/type-info.h"
 
 namespace v8 {
 namespace internal {

src/type-info.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_TYPE_INFO_H_
-#define V8_TYPE_INFO_H_
-
-#include "src/allocation.h"
-#include "src/ast/ast-types.h"
-#include "src/contexts.h"
-#include "src/globals.h"
-#include "src/parsing/token.h"
-#include "src/zone/zone.h"
-
-namespace v8 {
-namespace internal {
-
-// Forward declarations.
-class SmallMapList;
-class FeedbackNexus;
-class StubCache;
-
-class TypeFeedbackOracle: public ZoneObject {
- public:
-  TypeFeedbackOracle(Isolate* isolate, Zone* zone, Handle<Code> code,
-                     Handle<FeedbackVector> feedback_vector,
-                     Handle<Context> native_context);
-
-  InlineCacheState LoadInlineCacheState(FeedbackSlot slot);
-  bool StoreIsUninitialized(FeedbackSlot slot);
-  bool CallIsUninitialized(FeedbackSlot slot);
-  bool CallIsMonomorphic(FeedbackSlot slot);
-  bool CallNewIsMonomorphic(FeedbackSlot slot);
-
-  // TODO(1571) We can't use ForInStatement::ForInType as the return value due
-  // to various cycles in our headers.
-  // TODO(rossberg): once all oracle access is removed from ast.cc, it should
-  // be possible.
-  byte ForInType(FeedbackSlot feedback_vector_slot);
-
-  void GetStoreModeAndKeyType(FeedbackSlot slot,
-                              KeyedAccessStoreMode* store_mode,
-                              IcCheckType* key_type);
-
-  void PropertyReceiverTypes(FeedbackSlot slot, Handle<Name> name,
-                             SmallMapList* receiver_types);
-  void KeyedPropertyReceiverTypes(FeedbackSlot slot,
-                                  SmallMapList* receiver_types, bool* is_string,
-                                  IcCheckType* key_type);
-  void AssignmentReceiverTypes(FeedbackSlot slot, Handle<Name> name,
-                               SmallMapList* receiver_types);
-  void KeyedAssignmentReceiverTypes(FeedbackSlot slot,
-                                    SmallMapList* receiver_types,
-                                    KeyedAccessStoreMode* store_mode,
-                                    IcCheckType* key_type);
-  void CountReceiverTypes(FeedbackSlot slot, SmallMapList* receiver_types);
-
-  void CollectReceiverTypes(FeedbackSlot slot, SmallMapList* types);
-  void CollectReceiverTypes(FeedbackNexus* nexus, SmallMapList* types);
-
-  Handle<JSFunction> GetCallTarget(FeedbackSlot slot);
-  Handle<AllocationSite> GetCallAllocationSite(FeedbackSlot slot);
-  Handle<JSFunction> GetCallNewTarget(FeedbackSlot slot);
-  Handle<AllocationSite> GetCallNewAllocationSite(FeedbackSlot slot);
-
-  // TODO(1571) We can't use ToBooleanICStub::Types as the return value because
-  // of various cycles in our headers. Death to tons of implementations in
-  // headers!! :-P
-  uint16_t ToBooleanTypes(TypeFeedbackId id);
-
-  // Get type information for arithmetic operations and compares.
-  void BinaryType(TypeFeedbackId id, FeedbackSlot slot, AstType** left,
-                  AstType** right, AstType** result,
-                  Maybe<int>* fixed_right_arg,
-                  Handle<AllocationSite>* allocation_site,
-                  Token::Value operation);
-
-  void CompareType(TypeFeedbackId id, FeedbackSlot slot, AstType** left,
-                   AstType** right, AstType** combined);
-
-  AstType* CountType(TypeFeedbackId id, FeedbackSlot slot);
-
-  Zone* zone() const { return zone_; }
-  Isolate* isolate() const { return isolate_; }
-
- private:
-  // Returns true if there is at least one string map and if
-  // all maps are string maps.
-  bool HasOnlyStringMaps(SmallMapList* receiver_types);
-
-  void SetInfo(TypeFeedbackId id, Object* target);
-
-  void BuildDictionary(Handle<Code> code);
-  void GetRelocInfos(Handle<Code> code, ZoneList<RelocInfo>* infos);
-  void CreateDictionary(Handle<Code> code, ZoneList<RelocInfo>* infos);
-  void RelocateRelocInfos(ZoneList<RelocInfo>* infos,
-                          Code* old_code,
-                          Code* new_code);
-  void ProcessRelocInfos(ZoneList<RelocInfo>* infos);
-
-  // Returns an element from the backing store. Returns undefined if
-  // there is no information.
-  Handle<Object> GetInfo(TypeFeedbackId id);
-
-  // Returns an element from the type feedback vector. Returns undefined
-  // if there is no information.
-  Handle<Object> GetInfo(FeedbackSlot slot);
-
- private:
-  Handle<Context> native_context_;
-  Isolate* isolate_;
-  Zone* zone_;
-  Handle<UnseededNumberDictionary> dictionary_;
-  Handle<FeedbackVector> feedback_vector_;
-
-  DISALLOW_COPY_AND_ASSIGN(TypeFeedbackOracle);
-};
-
-}  // namespace internal
-}  // namespace v8
-
-#endif  // V8_TYPE_INFO_H_

src/v8.gyp

@@ -1445,8 +1445,6 @@
         'trap-handler/trap-handler-internal.h',
         'type-hints.cc',
         'type-hints.h',
-        'type-info.cc',
-        'type-info.h',
         'unicode-inl.h',
         'unicode.cc',
         'unicode.h',