Internalize strings in-place

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/compiler/type-cache.h"
 #include "src/contexts.h"
 #include "src/frames.h"
 #include "src/handles-inl.h"
@@ skipping 503 matching lines @@
 // static
 FieldAccess AccessBuilder::ForConsStringSecond() {
   FieldAccess access = {kTaggedBase,         ConsString::kSecondOffset,
                         Handle<Name>(),      MaybeHandle<Map>(),
                         Type::String(),      MachineType::TaggedPointer(),
                         kPointerWriteBarrier};
   return access;
 }
 
 // static
+FieldAccess AccessBuilder::ForThinStringActual() {
+  FieldAccess access = {kTaggedBase,         ThinString::kActualOffset,
+                        Handle<Name>(),      MaybeHandle<Map>(),
+                        Type::String(),      MachineType::TaggedPointer(),
+                        kPointerWriteBarrier};
+  return access;
+}
+
+// static
 FieldAccess AccessBuilder::ForSlicedStringOffset() {
   FieldAccess access = {kTaggedBase,         SlicedString::kOffsetOffset,
                         Handle<Name>(),      MaybeHandle<Map>(),
                         Type::SignedSmall(), MachineType::TaggedSigned(),
                         kNoWriteBarrier};
   return access;
 }
 
 // static
 FieldAccess AccessBuilder::ForSlicedStringParent() {
@@ skipping 386 matching lines @@
       MaybeHandle<Map>(),
       Type::SignedSmall(),
       MachineType::TaggedSigned(),
       kNoWriteBarrier};
   return access;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8