[turbofan] Single entry into deferred regions

src/compiler/raw-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/raw-machine-assembler.h"
 
 #include "src/code-factory.h"
 #include "src/compiler/node-properties.h"
 #include "src/compiler/pipeline.h"
 #include "src/compiler/scheduler.h"
@@ skipping 32 matching lines @@
 }
 
 Schedule* RawMachineAssembler::Export() {
   // Compute the correct codegen order.
   DCHECK(schedule_->rpo_order()->empty());
   OFStream os(stdout);
   if (FLAG_trace_turbo_scheduler) {
     PrintF("--- RAW SCHEDULE -------------------------------------------\n");
     os << *schedule_;
   }
-  schedule_->EnsureSplitEdgeForm();
+  schedule_->EnsureCFGWellFormedness();
   schedule_->PropagateDeferredMark();
   if (FLAG_trace_turbo_scheduler) {
     PrintF("--- EDGE SPLIT AND PROPAGATED DEFERRED SCHEDULE ------------\n");
     os << *schedule_;
   }
   Scheduler::ComputeSpecialRPO(zone(), schedule_);
   // Invalidate RawMachineAssembler.
   Schedule* schedule = schedule_;
   schedule_ = nullptr;
   return schedule;
@@ skipping 434 matching lines @@
   // The raw machine assembler nodes do not have effect and control inputs,
   // so we disable checking input counts here.
   return graph()->NewNodeUnchecked(op, input_count, inputs);
 }
 
 RawMachineLabel::~RawMachineLabel() { DCHECK(bound_ || !used_); }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8