[turbofan] Lower StringEqual and friends in EffectControlLinearizer.

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 604 matching lines @@
   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 certain call descriptors are
-  // initialized on the main thread, since it is needed off-thread by the
-  // effect control linearizer.
-  CodeFactory::CopyFastSmiOrObjectElements(info()->isolate());
-  CodeFactory::GrowFastDoubleElements(info()->isolate());
-  CodeFactory::GrowFastSmiOrObjectElements(info()->isolate());
-  CodeFactory::ToNumber(info()->isolate());
-
   linkage_ = new (&zone_) Linkage(Linkage::ComputeIncoming(&zone_, info()));
 
   if (!pipeline_.CreateGraph()) {
     if (isolate()->has_pending_exception()) return FAILED;  // Stack overflowed.
     return AbortOptimization(kGraphBuildingFailed);
   }
 
   return SUCCEEDED;
 }
 
@@ skipping 1307 matching lines @@
   data->DeleteRegisterAllocationZone();
 }
 
 CompilationInfo* PipelineImpl::info() const { return data_->info(); }
 
 Isolate* PipelineImpl::isolate() const { return info()->isolate(); }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8