Ensure Schedules generated by the RawMachineAssembler are in edge-split form

src/compiler/schedule.h

 // Copyright 2013 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.
 
 #ifndef V8_COMPILER_SCHEDULE_H_
 #define V8_COMPILER_SCHEDULE_H_
 
 #include <iosfwd>
 
 #include "src/zone-containers.h"
@@ skipping 225 matching lines @@
 
   // BasicBlock mutation: insert a switch into the end of {block}.
   void InsertSwitch(BasicBlock* block, BasicBlock* end, Node* sw,
                     BasicBlock** succ_blocks, size_t succ_count);
 
   // Exposed publicly for testing only.
   void AddSuccessorForTesting(BasicBlock* block, BasicBlock* succ) {
     return AddSuccessor(block, succ);
   }
 
+  const BasicBlockVector* all_blocks() const { return &all_blocks_; }
   BasicBlockVector* rpo_order() { return &rpo_order_; }
   const BasicBlockVector* rpo_order() const { return &rpo_order_; }
 
   BasicBlock* start() { return start_; }
   BasicBlock* end() { return end_; }
 
   Zone* zone() const { return zone_; }
 
  private:
   friend class Scheduler;
   friend class BasicBlockInstrumentor;
+  friend class RawMachineAssembler;
+
+  // Ensure split-edge form for a hand-assembled schedule.
+  void EnsureSplitEdgeForm();
+  // Copy deferred block markers down as far as possible
+  void PropagateDeferredMark();
 
   void AddSuccessor(BasicBlock* block, BasicBlock* succ);
   void MoveSuccessors(BasicBlock* from, BasicBlock* to);
 
   void SetControlInput(BasicBlock* block, Node* node);
   void SetBlockForNode(BasicBlock* block, Node* node);
 
   Zone* zone_;
   BasicBlockVector all_blocks_;           // All basic blocks in the schedule.
   BasicBlockVector nodeid_to_block_;      // Map from node to containing block.
   BasicBlockVector rpo_order_;            // Reverse-post-order block list.
   BasicBlock* start_;
   BasicBlock* end_;
 
   DISALLOW_COPY_AND_ASSIGN(Schedule);
 };
 
 std::ostream& operator<<(std::ostream&, const Schedule&);
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_SCHEDULE_H_