Use off-heap data for class check instructions

runtime/vm/flow_graph_compiler.h

 // Copyright (c) 2012, 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 RUNTIME_VM_FLOW_GRAPH_COMPILER_H_
 #define RUNTIME_VM_FLOW_GRAPH_COMPILER_H_
 
 #include "vm/allocation.h"
 #include "vm/assembler.h"
 #include "vm/code_descriptors.h"
@@ skipping 555 matching lines @@
 
   intptr_t CurrentTryIndex() const {
     if (current_block_ == NULL) {
       return CatchClauseNode::kInvalidTryIndex;
     }
     return current_block_->try_index();
   }
 
   bool may_reoptimize() const { return may_reoptimize_; }
 
-  // Returns 'sorted' array in decreasing count order.
-  static void SortICDataByCount(const ICData& ic_data,
-                                GrowableArray<CidRangeTarget>* sorted,
-                                bool drop_smi);
-
   // Use in unoptimized compilation to preserve/reuse ICData.
   const ICData* GetOrAddInstanceCallICData(intptr_t deopt_id,
                                            const String& target_name,
                                            const Array& arguments_descriptor,
                                            intptr_t num_args_tested);
 
   const ICData* GetOrAddStaticCallICData(intptr_t deopt_id,
                                          const Function& target,
                                          const Array& arguments_descriptor,
                                          intptr_t num_args_tested);
@@ skipping 76 matching lines @@
   // More helpers for EmitTestAndCall.
   void EmitTestAndCallLoadReceiver(intptr_t argument_count,
                                    const Array& arguments_descriptor);
 
   void EmitTestAndCallSmiBranch(Label* label, bool jump_if_smi);
 
   void EmitTestAndCallLoadCid();
 
   // Returns new class-id bias.
   int EmitTestAndCallCheckCid(Label* next_label,
-                              const CidRangeTarget& target,
+                              const CidRange& range,
                               int bias);
 
 // DBC handles type tests differently from all other architectures due
 // to its interpreted nature.
 #if !defined(TARGET_ARCH_DBC)
   // Type checking helper methods.
   void CheckClassIds(Register class_id_reg,
                      const GrowableArray<intptr_t>& class_ids,
                      Label* is_instance_lbl,
                      Label* is_not_instance_lbl);
@@ skipping 158 matching lines @@
   ZoneGrowableArray<const ICData*>* deopt_id_to_ic_data_;
 
   Array& edge_counters_array_;
 
   DISALLOW_COPY_AND_ASSIGN(FlowGraphCompiler);
 };
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_FLOW_GRAPH_COMPILER_H_