[Interpreter] Move BytecodeHasHandler() from Interpreter to Bytecodes.

src/interpreter/interpreter.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/interpreter.h"
 
 #include "src/ast/prettyprinter.h"
 #include "src/code-factory.h"
 #include "src/compiler.h"
 #include "src/factory.h"
@@ skipping 21 matching lines @@
   if (IsDispatchTableInitialized()) return;
   Zone zone;
   HandleScope scope(isolate_);
 
   // Generate bytecode handlers for all bytecodes and scales.
   for (OperandScale operand_scale = OperandScale::kSingle;
        operand_scale <= OperandScale::kMaxValid;
        operand_scale = Bytecodes::NextOperandScale(operand_scale)) {
 #define GENERATE_CODE(Name, ...)                                               \
   {                                                                            \
-    if (BytecodeHasHandler(Bytecode::k##Name, operand_scale)) {                \
+    if (Bytecodes::BytecodeHasHandler(Bytecode::k##Name, operand_scale)) {     \
       InterpreterAssembler assembler(isolate_, &zone, Bytecode::k##Name,       \
                                      operand_scale);                           \
       Do##Name(&assembler);                                                    \
       Handle<Code> code = assembler.GenerateCode();                            \
       size_t index = GetDispatchTableIndex(Bytecode::k##Name, operand_scale);  \
       dispatch_table_[index] = *code;                                          \
       TraceCodegen(code);                                                      \
       LOG_CODE_EVENT(                                                          \
           isolate_,                                                            \
           CodeCreateEvent(                                                     \
@@ skipping 11 matching lines @@
   for (size_t index = 0; index < arraysize(dispatch_table_); ++index) {
     if (dispatch_table_[index] == nullptr) {
       dispatch_table_[index] = dispatch_table_[illegal_index];
     }
   }
 }
 
 Code* Interpreter::GetBytecodeHandler(Bytecode bytecode,
                                       OperandScale operand_scale) {
   DCHECK(IsDispatchTableInitialized());
-  DCHECK(BytecodeHasHandler(bytecode, operand_scale));
+  DCHECK(Bytecodes::BytecodeHasHandler(bytecode, operand_scale));
   size_t index = GetDispatchTableIndex(bytecode, operand_scale);
   return dispatch_table_[index];
 }
 
 // static
 size_t Interpreter::GetDispatchTableIndex(Bytecode bytecode,
                                           OperandScale operand_scale) {
   static const size_t kEntriesPerOperandScale = 1u << kBitsPerByte;
   size_t index = static_cast<size_t>(bytecode);
   OperandScale current_scale = OperandScale::kSingle;
   while (current_scale != operand_scale) {
     index += kEntriesPerOperandScale;
     current_scale = Bytecodes::NextOperandScale(current_scale);
   }
   return index;
 }
 
-// static
-bool Interpreter::BytecodeHasHandler(Bytecode bytecode,
-                                     OperandScale operand_scale) {
-  return operand_scale == OperandScale::kSingle ||
-         Bytecodes::IsBytecodeWithScalableOperands(bytecode);
-}
-
 void Interpreter::IterateDispatchTable(ObjectVisitor* v) {
   v->VisitPointers(
       reinterpret_cast<Object**>(&dispatch_table_[0]),
       reinterpret_cast<Object**>(&dispatch_table_[0] + kDispatchTableSize));
 }
 
 // static
 int Interpreter::InterruptBudget() {
   // TODO(ignition): Tune code size multiplier.
   const int kCodeSizeMultiplier = 32;
@@ skipping 1499 matching lines @@
 // Illegal
 //
 // An invalid bytecode aborting execution if dispatched.
 void Interpreter::DoIllegal(InterpreterAssembler* assembler) {
   __ Abort(kInvalidBytecode);
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8