Reland "[interpeter] Move to table based peephole optimizer."

src/interpreter/bytecodes.cc

 // 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.
 
 #include "src/interpreter/bytecodes.h"
 
 #include <iomanip>
 
 #include "src/base/bits.h"
 #include "src/globals.h"
@@ skipping 459 matching lines @@
   }
   return false;
 }
 
 // static
 bool Bytecodes::IsLdarOrStar(Bytecode bytecode) {
   return bytecode == Bytecode::kLdar || bytecode == Bytecode::kStar;
 }
 
 // static
-bool Bytecodes::IsLdaSmiOrLdaZero(Bytecode bytecode) {
-  return bytecode == Bytecode::kLdaSmi || bytecode == Bytecode::kLdaZero;
-}
-
-// static
 bool Bytecodes::IsBytecodeWithScalableOperands(Bytecode bytecode) {
   switch (bytecode) {
 #define CASE(Name, ...)                              \
   case Bytecode::k##Name:                            \
     typedef BytecodeTraits<__VA_ARGS__> Name##Trait; \
     return Name##Trait::IsScalable();
     BYTECODE_LIST(CASE)
 #undef CASE
   }
   UNREACHABLE();
   return false;
 }
 
 // static
 bool Bytecodes::IsPrefixScalingBytecode(Bytecode bytecode) {
   switch (bytecode) {
     case Bytecode::kExtraWide:
     case Bytecode::kDebugBreakExtraWide:
     case Bytecode::kWide:
     case Bytecode::kDebugBreakWide:
       return true;
     default:
       return false;
   }
 }
 
 // static
+bool Bytecodes::PutsNameInAccumulator(Bytecode bytecode) {
+  return bytecode == Bytecode::kToName || bytecode == Bytecode::kTypeOf;
+}
+
+// static
 bool Bytecodes::IsJumpOrReturn(Bytecode bytecode) {
   return bytecode == Bytecode::kReturn || IsJump(bytecode);
 }
 
 // static
 bool Bytecodes::IsMaybeRegisterOperandType(OperandType operand_type) {
   return operand_type == OperandType::kMaybeReg;
 }
 
 // static
@@ skipping 125 matching lines @@
   return os << Bytecodes::OperandScaleToString(operand_scale);
 }
 
 std::ostream& operator<<(std::ostream& os, const OperandType& operand_type) {
   return os << Bytecodes::OperandTypeToString(operand_type);
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8