[Interpreter] Optimize the Register Optimizer.

src/interpreter/bytecode-operands.h

Index: src/interpreter/bytecode-operands.h
diff --git a/src/interpreter/bytecode-operands.h b/src/interpreter/bytecode-operands.h
index b35c4866be7332803fe61d1991f0a57a3d511398..04fd06ce4129456f6651f713856277413cad2ce7 100644
--- a/src/interpreter/bytecode-operands.h
+++ b/src/interpreter/bytecode-operands.h
@@ -14,8 +14,8 @@ namespace interpreter {
 #define INVALID_OPERAND_TYPE_LIST(V) V(None, OperandTypeInfo::kNone)
 
 #define REGISTER_INPUT_OPERAND_TYPE_LIST(V)        \
-  V(RegList, OperandTypeInfo::kScalableSignedByte) \
   V(Reg, OperandTypeInfo::kScalableSignedByte)     \
+  V(RegList, OperandTypeInfo::kScalableSignedByte) \
   V(RegPair, OperandTypeInfo::kScalableSignedByte)
 
 #define REGISTER_OUTPUT_OPERAND_TYPE_LIST(V)          \
@@ -23,22 +23,25 @@ namespace interpreter {
   V(RegOutPair, OperandTypeInfo::kScalableSignedByte) \
   V(RegOutTriple, OperandTypeInfo::kScalableSignedByte)
 
-#define SCALAR_OPERAND_TYPE_LIST(V)                   \
+#define UNSIGNED_SCALAR_OPERAND_TYPE_LIST(V)          \
   V(Flag8, OperandTypeInfo::kFixedUnsignedByte)       \
   V(IntrinsicId, OperandTypeInfo::kFixedUnsignedByte) \
   V(Idx, OperandTypeInfo::kScalableUnsignedByte)      \
   V(UImm, OperandTypeInfo::kScalableUnsignedByte)     \
-  V(Imm, OperandTypeInfo::kScalableSignedByte)        \
   V(RegCount, OperandTypeInfo::kScalableUnsignedByte) \
   V(RuntimeId, OperandTypeInfo::kFixedUnsignedShort)
 
+#define SIGNED_SCALAR_OPERAND_TYPE_LIST(V) \
+  V(Imm, OperandTypeInfo::kScalableSignedByte)
+
 #define REGISTER_OPERAND_TYPE_LIST(V) \
   REGISTER_INPUT_OPERAND_TYPE_LIST(V) \
   REGISTER_OUTPUT_OPERAND_TYPE_LIST(V)
 
 #define NON_REGISTER_OPERAND_TYPE_LIST(V) \
   INVALID_OPERAND_TYPE_LIST(V)            \
-  SCALAR_OPERAND_TYPE_LIST(V)
+  UNSIGNED_SCALAR_OPERAND_TYPE_LIST(V)    \
+  SIGNED_SCALAR_OPERAND_TYPE_LIST(V)
 
 // The list of operand types used by bytecodes.
 #define OPERAND_TYPE_LIST(V)        \