Keep list of uses sorted when building it.

runtime/vm/flow_graph_allocator.h

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_FLOW_GRAPH_ALLOCATOR_H_
 #define VM_FLOW_GRAPH_ALLOCATOR_H_
 
 #include "vm/flow_graph.h"
 #include "vm/growable_array.h"
 #include "vm/intermediate_language.h"
@@ skipping 540 matching lines @@
       first_use_interval_(NULL),
       last_use_interval_(NULL),
       first_safepoint_(NULL),
       last_safepoint_(NULL),
       next_sibling_(NULL),
       has_only_any_uses_in_loops_(0),
       is_loop_phi_(false),
       finger_() {
   }
 
-  static LiveRange* MakeTemp(intptr_t pos, Location* location_slot);
-
   intptr_t vreg() const { return vreg_; }
   Representation representation() const { return representation_; }
   LiveRange* next_sibling() const { return next_sibling_; }
   UsePosition* first_use() const { return uses_; }
   void set_first_use(UsePosition* use) { uses_ = use; }
   UseInterval* first_use_interval() const { return first_use_interval_; }
   UseInterval* last_use_interval() const { return last_use_interval_; }
   Location assigned_location() const { return assigned_location_; }
   Location* assigned_location_slot() { return &assigned_location_; }
   intptr_t Start() const { return first_use_interval()->start(); }
   intptr_t End() const { return last_use_interval()->end(); }
 
   SafepointPosition* first_safepoint() const { return first_safepoint_; }
 
   AllocationFinger* finger() { return &finger_; }
 
   void set_assigned_location(Location location) {
     assigned_location_ = location;
   }
 
   void set_spill_slot(Location spill_slot) {
     spill_slot_ = spill_slot;
   }
 
   void DefineAt(intptr_t pos);
 
   void AddSafepoint(intptr_t pos, LocationSummary* locs);
 
-  void AddUse(intptr_t pos, Location* location_slot);
+  UsePosition* AddUse(intptr_t pos, Location* location_slot);
   void AddHintedUse(intptr_t pos, Location* location_slot, Location* hint);
 
   void AddUseInterval(intptr_t start, intptr_t end);
 
   void Print();
 
-  void AssignLocation(UseInterval* use, Location loc);
-
   LiveRange* SplitAt(intptr_t pos);
 
   // A fast conservative check if the range might contain a given position
   // -- can return true when the range does not contain the position (e.g.,
   // the position lies in a lifetime hole between range start and end).
   bool CanCover(intptr_t pos) const {
     return (Start() <= pos) && (pos < End());
   }
 
   // True if the range contains the given position.
@@ skipping 63 matching lines @@
 
   AllocationFinger finger_;
 
   DISALLOW_COPY_AND_ASSIGN(LiveRange);
 };
 
 
 }  // namespace dart
 
 #endif  // VM_FLOW_GRAPH_ALLOCATOR_H_