Remove duplication in Scheduler and simplify interface. Make ComputeSchedule() and ComputeSpecialRP…

src/compiler/structured-machine-assembler.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 "src/compiler/scheduler.h"
 #include "src/compiler/structured-machine-assembler.h"
 
 namespace v8 {
 namespace internal {
@@ skipping 23 matching lines @@
   parameters_ = zone()->NewArray<Node*>(parameter_count());
   for (int i = 0; i < parameter_count(); ++i) {
     parameters_[i] = NewNode(common()->Parameter(i), graph->start());
   }
 }
 
 
 Schedule* StructuredMachineAssembler::Export() {
   // Compute the correct codegen order.
   DCHECK(schedule_->rpo_order()->empty());
-  Scheduler scheduler(zone(), graph(), schedule_);
-  scheduler.ComputeSpecialRPO();
+  Scheduler::ComputeSpecialRPO(schedule_);
   // Invalidate MachineAssembler.
   Schedule* schedule = schedule_;
   schedule_ = NULL;
   return schedule;
 }
 
 
 Node* StructuredMachineAssembler::Parameter(int index) {
   DCHECK(0 <= index && index < parameter_count());
   return parameters_[index];
@@ skipping 600 matching lines @@
   }
   pending_header_merges_.clear();
   pending_exit_merges_.clear();
   header_environment_ = NULL;
   DCHECK(IsDone());
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8