[turbofan] Remove dead code from the pipeline.

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 <sstream>
 
 #include "src/base/adapters.h"
@@ skipping 839 matching lines @@
     AddReducer(data, &graph_reducer, &dead_code_elimination);
     AddReducer(data, &graph_reducer, &simple_reducer);
     AddReducer(data, &graph_reducer, &value_numbering);
     AddReducer(data, &graph_reducer, &lowering);
     AddReducer(data, &graph_reducer, &machine_reducer);
     AddReducer(data, &graph_reducer, &common_reducer);
     graph_reducer.ReduceGraph();
   }
 };
 
-struct ComputeEffectSchedulePhase {
-  static const char* phase_name() { return "effect scheduling"; }
-
-  void Run(PipelineData* data, Zone* temp_zone) {
-    Schedule* schedule = Scheduler::ComputeSchedule(temp_zone, data->graph(),
-                                                    Scheduler::kNoFlags);
-    if (FLAG_turbo_verify) ScheduleVerifier::Run(schedule);
-    data->set_schedule(schedule);
-  }
-};
-
-struct EffectScheduleTrimmingPhase {
-  static const char* phase_name() { return "effect schedule graph trimming"; }
-  void Run(PipelineData* data, Zone* temp_zone) {
-    GraphTrimmer trimmer(temp_zone, data->graph());
-    NodeVector roots(temp_zone);
-    data->jsgraph()->GetCachedNodes(&roots);
-    trimmer.TrimGraph(roots.begin(), roots.end());
-  }
-};
-
 struct EarlyGraphTrimmingPhase {
   static const char* phase_name() { return "early graph trimming"; }
   void Run(PipelineData* data, Zone* temp_zone) {
     GraphTrimmer trimmer(temp_zone, data->graph());
     NodeVector roots(temp_zone);
     data->jsgraph()->GetCachedNodes(&roots);
     trimmer.TrimGraph(roots.begin(), roots.end());
   }
 };
 
@@ skipping 733 matching lines @@
   }
 
   data->DeleteRegisterAllocationZone();
 }
 
 Isolate* Pipeline::isolate() const { return info()->isolate(); }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8