[interpreter] Introduce bytecode generation pipeline.

src/log.cc

 // Copyright 2011 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/log.h"
 
 #include <cstdarg>
 #include <sstream>
 
 #include "src/bailout-reason.h"
@@ skipping 1562 matching lines @@
   DisallowHeapAllocation no_gc;
   for (HeapObject* obj = iterator.next(); obj != NULL; obj = iterator.next()) {
     if (obj->IsCode()) LogCodeObject(obj);
     if (obj->IsBytecodeArray()) LogCodeObject(obj);
   }
 }
 
 void Logger::LogBytecodeHandlers() {
   if (!FLAG_ignition) return;
 
+  const interpreter::OperandScale kOperandScales[] = {
+#define VALUE(Name, _) interpreter::OperandScale::k##Name,
+      OPERAND_SCALE_LIST(VALUE)
+#undef VALUE
+  };
+
+  const int last_index = static_cast<int>(interpreter::Bytecode::kLast);
   interpreter::Interpreter* interpreter = isolate_->interpreter();
-  const int last_index = static_cast<int>(interpreter::Bytecode::kLast);
-  for (auto operand_scale = interpreter::OperandScale::kSingle;
-       operand_scale <= interpreter::OperandScale::kMaxValid;
-       operand_scale =
-           interpreter::Bytecodes::NextOperandScale(operand_scale)) {
+  for (auto operand_scale : kOperandScales) {
     for (int index = 0; index <= last_index; ++index) {
       interpreter::Bytecode bytecode = interpreter::Bytecodes::FromByte(index);
       if (interpreter::Bytecodes::BytecodeHasHandler(bytecode, operand_scale)) {
         Code* code = interpreter->GetBytecodeHandler(bytecode, operand_scale);
         std::string bytecode_name =
             interpreter::Bytecodes::ToString(bytecode, operand_scale);
         CodeCreateEvent(Logger::BYTECODE_HANDLER_TAG, AbstractCode::cast(code),
                         bytecode_name.c_str());
       }
     }
@@ skipping 252 matching lines @@
     removeCodeEventListener(jit_logger_);
     delete jit_logger_;
     jit_logger_ = NULL;
   }
 
   return log_->Close();
 }
 
 }  // namespace internal
 }  // namespace v8