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

src/interpreter/bytecode-operands.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_INTERPRETER_BYTECODE_OPERANDS_H_
 #define V8_INTERPRETER_BYTECODE_OPERANDS_H_
 
 #include "src/globals.h"
 
 namespace v8 {
 namespace internal {
 namespace interpreter {
 
 #define INVALID_OPERAND_TYPE_LIST(V) V(None, OperandTypeInfo::kNone)
 
 #define REGISTER_INPUT_OPERAND_TYPE_LIST(V)        \
   V(Reg, OperandTypeInfo::kScalableSignedByte)     \
   V(RegList, OperandTypeInfo::kScalableSignedByte) \
   V(RegPair, OperandTypeInfo::kScalableSignedByte)
 
 #define REGISTER_OUTPUT_OPERAND_TYPE_LIST(V)          \
   V(RegOut, OperandTypeInfo::kScalableSignedByte)     \
+  V(RegOutList, OperandTypeInfo::kScalableSignedByte) \
   V(RegOutPair, OperandTypeInfo::kScalableSignedByte) \
   V(RegOutTriple, OperandTypeInfo::kScalableSignedByte)
 
 #define SIGNED_SCALABLE_SCALAR_OPERAND_TYPE_LIST(V) \
   V(Imm, OperandTypeInfo::kScalableSignedByte)
 
 #define UNSIGNED_SCALABLE_SCALAR_OPERAND_TYPE_LIST(V) \
   V(Idx, OperandTypeInfo::kScalableUnsignedByte)      \
   V(UImm, OperandTypeInfo::kScalableUnsignedByte)     \
   V(RegCount, OperandTypeInfo::kScalableUnsignedByte)
@@ skipping 123 matching lines @@
     return operand_type >= OperandType::kIdx &&
            operand_type <= OperandType::kRegCount;
   }
 };
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_INTERPRETER_BYTECODE_OPERANDS_H_