Save/restore only live registers in the generator suspend/resume.

src/compiler/bytecode-analysis.h

 // Copyright 2016 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_BYTECODE_ANALYSIS_H_
 #define V8_COMPILER_BYTECODE_ANALYSIS_H_
 
 #include "src/base/hashmap.h"
 #include "src/bit-vector.h"
 #include "src/compiler/bytecode-liveness-map.h"
 #include "src/handles.h"
 #include "src/interpreter/bytecode-register.h"
 #include "src/zone/zone-containers.h"
 
 namespace v8 {
 namespace internal {
 
 class BytecodeArray;
 
 namespace compiler {
 
 class V8_EXPORT_PRIVATE BytecodeLoopAssignments {
  public:
   BytecodeLoopAssignments(int parameter_count, int register_count, Zone* zone);
 
   void Add(interpreter::Register r);
-  void AddPair(interpreter::Register r);
-  void AddTriple(interpreter::Register r);
+  void AddList(interpreter::Register r, uint32_t count);
   void AddAll();
   void Union(const BytecodeLoopAssignments& other);
 
   bool ContainsParameter(int index) const;
   bool ContainsLocal(int index) const;
   bool ContainsAccumulator() const;
 
   int parameter_count() const { return parameter_count_; }
   int local_count() const { return bit_vector_->length() - parameter_count_; }
 
@@ skipping 84 matching lines @@
   BytecodeLivenessMap liveness_map_;
 
   DISALLOW_COPY_AND_ASSIGN(BytecodeAnalysis);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_BYTECODE_ANALYSIS_H_