[turbofan] Add support for accessor inlining.

src/compiler/pipeline.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/pipeline.h"
 
 #include <fstream>  // NOLINT(readability/streams)
 #include <memory>
 #include <sstream>
 
@@ skipping 588 matching lines @@
       info()->MarkAsBailoutOnUninitialized();
     }
     if (FLAG_native_context_specialization) {
       info()->MarkAsNativeContextSpecializing();
     }
   }
   if (!info()->shared_info()->asm_function() || FLAG_turbo_asm_deoptimization) {
     info()->MarkAsDeoptimizationEnabled();
   }
   if (!info()->is_optimizing_from_bytecode()) {
+    if (FLAG_inline_accessors) {
+      info()->MarkAsAccessorInliningEnabled();
+    }
     if (info()->is_deoptimization_enabled() && FLAG_turbo_type_feedback) {
       info()->MarkAsTypeFeedbackEnabled();
     }
     if (!Compiler::EnsureDeoptimizationSupport(info())) return FAILED;
   }
 
   // TODO(mstarzinger): Hack to ensure that the ToNumber call descriptor is
   // initialized on the main thread, since it is needed off-thread by the
   // effect control linearizer.
   CodeFactory::ToNumber(info()->isolate());
@@ skipping 170 matching lines @@
         data->info()->is_function_context_specializing()
             ? data->info()->context()
             : MaybeHandle<Context>());
     JSFrameSpecialization frame_specialization(data->info()->osr_frame(),
                                                data->jsgraph());
     JSGlobalObjectSpecialization global_object_specialization(
         &graph_reducer, data->jsgraph(), data->native_context(),
         data->info()->dependencies());
     JSNativeContextSpecialization::Flags flags =
         JSNativeContextSpecialization::kNoFlags;
+    if (data->info()->is_accessor_inlining_enabled()) {
+      flags |= JSNativeContextSpecialization::kAccessorInliningEnabled;
+    }
     if (data->info()->is_bailout_on_uninitialized()) {
       flags |= JSNativeContextSpecialization::kBailoutOnUninitialized;
     }
     if (data->info()->is_deoptimization_enabled()) {
       flags |= JSNativeContextSpecialization::kDeoptimizationEnabled;
     }
     JSNativeContextSpecialization native_context_specialization(
         &graph_reducer, data->jsgraph(), flags, data->native_context(),
         data->info()->dependencies(), temp_zone);
     JSInliningHeuristic inlining(&graph_reducer,
@@ skipping 1081 matching lines @@
   data->DeleteRegisterAllocationZone();
 }
 
 CompilationInfo* PipelineImpl::info() const { return data_->info(); }
 
 Isolate* PipelineImpl::isolate() const { return info()->isolate(); }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8