[turbofan] Pseudo-inline instanceof

src/compiler/access-builder.cc

 // Copyright 2014 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/compiler/access-builder.h"
 
 #include "src/contexts.h"
 #include "src/frames.h"
 #include "src/heap/heap.h"
 #include "src/type-cache.h"
@@ skipping 113 matching lines @@
 
 // static
 FieldAccess AccessBuilder::ForMapInstanceType() {
   FieldAccess access = {kTaggedBase, Map::kInstanceTypeOffset, Handle<Name>(),
                         TypeCache::Get().kUint8, kMachUint8};
   return access;
 }
 
 
 // static
+FieldAccess AccessBuilder::ForMapPrototype() {
+  FieldAccess access = {kTaggedBase, Map::kPrototypeOffset, Handle<Name>(),
+                        Type::TaggedPointer(), kMachAnyTagged};
+  return access;
+}
+
+
+// static
 FieldAccess AccessBuilder::ForStringLength() {
   FieldAccess access = {kTaggedBase, String::kLengthOffset, Handle<Name>(),
                         TypeCache::Get().kStringLengthType, kMachAnyTagged};
   return access;
 }
 
 
 // static
 FieldAccess AccessBuilder::ForJSGlobalObjectGlobalProxy() {
   FieldAccess access = {kTaggedBase, JSGlobalObject::kGlobalProxyOffset,
@@ skipping 181 matching lines @@
 // static
 FieldAccess AccessBuilder::ForFrameMarker() {
   FieldAccess access = {kUntaggedBase, StandardFrameConstants::kMarkerOffset,
                         MaybeHandle<Name>(), Type::Tagged(), kMachAnyTagged};
   return access;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8