[interpreter] Put object in register for ToObject/ForInPrepare

src/interpreter/bytecodes.h

 // Copyright 2015 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_BYTECODES_H_
 #define V8_INTERPRETER_BYTECODES_H_
 
 #include <cstdint>
 #include <iosfwd>
 #include <string>
@@ skipping 195 matching lines @@
   V(TestLessThan, AccumulatorUse::kReadWrite, OperandType::kReg)               \
   V(TestGreaterThan, AccumulatorUse::kReadWrite, OperandType::kReg)            \
   V(TestLessThanOrEqual, AccumulatorUse::kReadWrite, OperandType::kReg)        \
   V(TestGreaterThanOrEqual, AccumulatorUse::kReadWrite, OperandType::kReg)     \
   V(TestInstanceOf, AccumulatorUse::kReadWrite, OperandType::kReg)             \
   V(TestIn, AccumulatorUse::kReadWrite, OperandType::kReg)                     \
                                                                                \
   /* Cast operators */                                                         \
   V(ToName, AccumulatorUse::kRead, OperandType::kRegOut)                       \
   V(ToNumber, AccumulatorUse::kRead, OperandType::kRegOut)                     \
-  V(ToObject, AccumulatorUse::kReadWrite)                                      \
+  V(ToObject, AccumulatorUse::kRead, OperandType::kRegOut)                     \
                                                                                \
   /* Literals */                                                               \
   V(CreateRegExpLiteral, AccumulatorUse::kWrite, OperandType::kIdx,            \
     OperandType::kIdx, OperandType::kFlag8)                                    \
   V(CreateArrayLiteral, AccumulatorUse::kWrite, OperandType::kIdx,             \
     OperandType::kIdx, OperandType::kFlag8)                                    \
   V(CreateObjectLiteral, AccumulatorUse::kWrite, OperandType::kIdx,            \
     OperandType::kIdx, OperandType::kFlag8)                                    \
                                                                                \
   /* Closure allocation */                                                     \
@@ skipping 17 matching lines @@
   V(JumpIfToBooleanFalse, AccumulatorUse::kRead, OperandType::kImm)            \
   V(JumpIfToBooleanFalseConstant, AccumulatorUse::kRead, OperandType::kIdx)    \
   V(JumpIfNull, AccumulatorUse::kRead, OperandType::kImm)                      \
   V(JumpIfNullConstant, AccumulatorUse::kRead, OperandType::kIdx)              \
   V(JumpIfUndefined, AccumulatorUse::kRead, OperandType::kImm)                 \
   V(JumpIfUndefinedConstant, AccumulatorUse::kRead, OperandType::kIdx)         \
   V(JumpIfNotHole, AccumulatorUse::kRead, OperandType::kImm)                   \
   V(JumpIfNotHoleConstant, AccumulatorUse::kRead, OperandType::kIdx)           \
                                                                                \
   /* Complex flow control For..in */                                           \
-  V(ForInPrepare, AccumulatorUse::kRead, OperandType::kRegOutTriple)           \
+  V(ForInPrepare, AccumulatorUse::kNone, OperandType::kReg,                    \
+    OperandType::kRegOutTriple)                                                \
   V(ForInDone, AccumulatorUse::kWrite, OperandType::kReg, OperandType::kReg)   \
   V(ForInNext, AccumulatorUse::kWrite, OperandType::kReg, OperandType::kReg,   \
     OperandType::kRegPair, OperandType::kIdx)                                  \
   V(ForInStep, AccumulatorUse::kWrite, OperandType::kReg)                      \
                                                                                \
   /* Perform a stack guard check */                                            \
   V(StackCheck, AccumulatorUse::kNone)                                         \
                                                                                \
   /* Perform a check to trigger on-stack replacement */                        \
   V(OsrPoll, AccumulatorUse::kNone, OperandType::kImm)                         \
@@ skipping 305 matching lines @@
 std::ostream& operator<<(std::ostream& os, const AccumulatorUse& use);
 std::ostream& operator<<(std::ostream& os, const OperandScale& operand_scale);
 std::ostream& operator<<(std::ostream& os, const OperandSize& operand_size);
 std::ostream& operator<<(std::ostream& os, const OperandType& operand_type);
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_INTERPRETER_BYTECODES_H_