diff --git a/test/cctest/interpreter/bytecode-expectations-printer.cc b/test/cctest/interpreter/bytecode-expectations-printer.cc
new file mode 100644
index 0000000..d5e0456
--- /dev/null
+++ b/test/cctest/interpreter/bytecode-expectations-printer.cc
@@ -0,0 +1,301 @@
+// Copyright 2016 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 "test/cctest/interpreter/bytecode-expectations-printer.h"
+
+#include <iostream>
+#include <vector>
+
+#include "include/libplatform/libplatform.h"
+#include "include/v8.h"
+
+#include "src/base/logging.h"
+#include "src/base/smart-pointers.h"
+#include "src/compiler.h"
+
+#include "src/interpreter/bytecode-array-iterator.h"
+#include "src/interpreter/bytecode-generator.h"
+#include "src/interpreter/bytecodes.h"
+#include "src/interpreter/interpreter.h"
+
+namespace v8 {
+namespace internal {
+namespace interpreter {
+
+// static
+const char* const BytecodeExpectationsPrinter::kDefaultTopFunctionName =
+    "__genbckexp_wrapper__";
+
+v8::Local<v8::String> BytecodeExpectationsPrinter::V8StringFromUTF8(
+    const char* data) const {
+  return v8::String::NewFromUtf8(isolate_, data, v8::NewStringType::kNormal)
+      .ToLocalChecked();
+}
+
+std::string BytecodeExpectationsPrinter::WrapCodeInFunction(
+    const char* function_name, const std::string& function_body) const {
+  std::ostringstream program_stream;
+  program_stream << "function " << function_name << "() {" << function_body
+                 << "}\n"
+                 << function_name << "();";
+
+  return program_stream.str();
+}
+
+v8::Local<v8::Script> BytecodeExpectationsPrinter::Compile(
+    const char* program) const {
+  v8::Local<v8::String> source = V8StringFromUTF8(program);
+  return v8::Script::Compile(isolate_->GetCurrentContext(), source)
+      .ToLocalChecked();
+}
+
+void BytecodeExpectationsPrinter::Run(v8::Local<v8::Script> script) const {
+  (void)script->Run(isolate_->GetCurrentContext());
+}
+
+i::Handle<v8::internal::BytecodeArray>
+BytecodeExpectationsPrinter::GetBytecodeArrayForGlobal(
+    const char* global_name) const {
+  const v8::Local<v8::Context>& context = isolate_->GetCurrentContext();
+  v8::Local<v8::String> v8_global_name = V8StringFromUTF8(global_name);
+  v8::Local<v8::Function> function = v8::Local<v8::Function>::Cast(
+      context->Global()->Get(context, v8_global_name).ToLocalChecked());
+  i::Handle<i::JSFunction> js_function =
+      i::Handle<i::JSFunction>::cast(v8::Utils::OpenHandle(*function));
+
+  i::Handle<i::BytecodeArray> bytecodes =
+      i::handle(js_function->shared()->bytecode_array(), i_isolate());
+
+  return bytecodes;
+}
+
+i::Handle<i::BytecodeArray>
+BytecodeExpectationsPrinter::GetBytecodeArrayForScript(
+    v8::Local<v8::Script> script) const {
+  i::Handle<i::JSFunction> js_function = v8::Utils::OpenHandle(*script);
+  return i::handle(js_function->shared()->bytecode_array(), i_isolate());
+}
+
+void BytecodeExpectationsPrinter::PrintEscapedString(
+    std::ostream& stream, const std::string& string) const {
+  for (char c : string) {
+    switch (c) {
+      case '"':
+        stream << "\\\"";
+        break;
+      case '\\':
+        stream << "\\\\";
+        break;
+      default:
+        stream << c;
+        break;
+    }
+  }
+}
+
+void BytecodeExpectationsPrinter::PrintBytecodeOperand(
+    std::ostream& stream, const BytecodeArrayIterator& bytecode_iter,
+    const Bytecode& bytecode, int op_index, int parameter_count) const {
+  OperandType op_type = Bytecodes::GetOperandType(bytecode, op_index);
+  OperandSize op_size = Bytecodes::GetOperandSize(bytecode, op_index);
+
+  const char* size_tag;
+  switch (op_size) {
+    case OperandSize::kByte:
+      size_tag = "8";
+      break;
+    case OperandSize::kShort:
+      size_tag = "16";
+      break;
+    default:
+      UNREACHABLE();
+      return;
+  }
+
+  if (Bytecodes::IsRegisterOperandType(op_type)) {
+    Register register_value = bytecode_iter.GetRegisterOperand(op_index);
+    stream << 'R';
+    if (op_size != OperandSize::kByte) stream << size_tag;
+    if (register_value.is_new_target()) {
+      stream << "(new_target)";
+    } else if (register_value.is_current_context()) {
+      stream << "(context)";
+    } else if (register_value.is_function_closure()) {
+      stream << "(closure)";
+    } else if (register_value.is_parameter()) {
+      int parameter_index = register_value.ToParameterIndex(parameter_count);
+      if (parameter_index == 0) {
+        stream << "(this)";
+      } else {
+        stream << "(arg" << (parameter_index - 1) << ')';
+      }
+    } else {
+      stream << '(' << register_value.index() << ')';
+    }
+  } else {
+    stream << 'U' << size_tag << '(';
+
+    if (Bytecodes::IsImmediateOperandType(op_type)) {
+      // We need a cast, otherwise the result is printed as char.
+      stream << static_cast<int>(bytecode_iter.GetImmediateOperand(op_index));
+    } else if (Bytecodes::IsRegisterCountOperandType(op_type)) {
+      stream << bytecode_iter.GetRegisterCountOperand(op_index);
+    } else if (Bytecodes::IsIndexOperandType(op_type)) {
+      stream << bytecode_iter.GetIndexOperand(op_index);
+    } else {
+      UNREACHABLE();
+    }
+
+    stream << ')';
+  }
+}
+
+void BytecodeExpectationsPrinter::PrintBytecode(
+    std::ostream& stream, const BytecodeArrayIterator& bytecode_iter,
+    int parameter_count) const {
+  Bytecode bytecode = bytecode_iter.current_bytecode();
+
+  stream << "B(" << Bytecodes::ToString(bytecode) << ')';
+
+  int operands_count = Bytecodes::NumberOfOperands(bytecode);
+  for (int op_index = 0; op_index < operands_count; ++op_index) {
+    stream << ", ";
+    PrintBytecodeOperand(stream, bytecode_iter, bytecode, op_index,
+                         parameter_count);
+  }
+}
+
+void BytecodeExpectationsPrinter::PrintV8String(std::ostream& stream,
+                                                i::String* string) const {
+  stream << '"';
+  for (int i = 0, length = string->length(); i < length; ++i) {
+    stream << i::AsEscapedUC16ForJSON(string->Get(i));
+  }
+  stream << '"';
+}
+
+void BytecodeExpectationsPrinter::PrintConstant(
+    std::ostream& stream, i::Handle<i::Object> constant) const {
+  switch (const_pool_type_) {
+    case ConstantPoolType::kString:
+      CHECK(constant->IsString());
+      PrintV8String(stream, i::String::cast(*constant));
+      break;
+    case ConstantPoolType::kNumber:
+      if (constant->IsSmi()) {
+        i::Smi::cast(*constant)->SmiPrint(stream);
+      } else if (constant->IsHeapNumber()) {
+        i::HeapNumber::cast(*constant)->HeapNumberPrint(stream);
+      } else {
+        UNREACHABLE();
+      }
+      break;
+    case ConstantPoolType::kMixed:
+      if (constant->IsSmi()) {
+        stream << "kInstanceTypeDontCare";
+      } else {
+        stream << "InstanceType::"
+               << i::HeapObject::cast(*constant)->map()->instance_type();
+      }
+      break;
+    case ConstantPoolType::kUnknown:
+    default:
+      UNREACHABLE();
+      return;
+  }
+}
+
+void BytecodeExpectationsPrinter::PrintFrameSize(
+    std::ostream& stream, i::Handle<i::BytecodeArray> bytecode_array) const {
+  const int kPointerSize = sizeof(void*);
+  int frame_size = bytecode_array->frame_size();
+
+  DCHECK_EQ(frame_size % kPointerSize, 0);
+  stream << "frame size: " << frame_size / kPointerSize;
+  if (frame_size > 0) stream << "  # in multiples of sizeof(void*)";
+  stream << "\nparameter count: " << bytecode_array->parameter_count() << '\n';
+}
+
+void BytecodeExpectationsPrinter::PrintBytecodeSequence(
+    std::ostream& stream, i::Handle<i::BytecodeArray> bytecode_array) const {
+  stream << "bytecodes: [\n";
+  BytecodeArrayIterator bytecode_iter(bytecode_array);
+  for (; !bytecode_iter.done(); bytecode_iter.Advance()) {
+    stream << "  ";
+    PrintBytecode(stream, bytecode_iter, bytecode_array->parameter_count());
+    stream << ",\n";
+  }
+  stream << "]\n";
+}
+
+void BytecodeExpectationsPrinter::PrintConstantPool(
+    std::ostream& stream, i::FixedArray* constant_pool) const {
+  stream << "constant pool: [\n";
+  int num_constants = constant_pool->length();
+  if (num_constants > 0) {
+    for (int i = 0; i < num_constants; ++i) {
+      stream << "  ";
+      PrintConstant(stream, i::FixedArray::get(constant_pool, i, i_isolate()));
+      stream << ",\n";
+    }
+  }
+  stream << "]\n";
+}
+
+void BytecodeExpectationsPrinter::PrintCodeSnippet(
+    std::ostream& stream, const std::string& body) const {
+  stream << "snippet: \"\n";
+  std::stringstream body_stream(body);
+  std::string body_line;
+  while (std::getline(body_stream, body_line)) {
+    stream << "  ";
+    PrintEscapedString(stream, body_line);
+    stream << '\n';
+  }
+  stream << "\"\n";
+}
+
+void BytecodeExpectationsPrinter::PrintHandlers(
+    std::ostream& stream, i::Handle<i::BytecodeArray> bytecode_array) const {
+  stream << "handlers: [\n";
+  HandlerTable* table = HandlerTable::cast(bytecode_array->handler_table());
+  for (int i = 0, num_entries = table->NumberOfRangeEntries(); i < num_entries;
+       ++i) {
+    stream << "  [" << table->GetRangeStart(i) << ", " << table->GetRangeEnd(i)
+           << ", " << table->GetRangeHandler(i) << "],\n";
+  }
+  stream << "]\n";
+}
+
+void BytecodeExpectationsPrinter::PrintBytecodeArray(
+    std::ostream& stream, i::Handle<i::BytecodeArray> bytecode_array) const {
+  PrintFrameSize(stream, bytecode_array);
+  PrintBytecodeSequence(stream, bytecode_array);
+  PrintConstantPool(stream, bytecode_array->constant_pool());
+  PrintHandlers(stream, bytecode_array);
+}
+
+void BytecodeExpectationsPrinter::PrintExpectation(
+    std::ostream& stream, const std::string& snippet) const {
+  std::string source_code =
+      wrap_ ? WrapCodeInFunction(test_function_name_.c_str(), snippet)
+            : snippet;
+
+  v8::Local<v8::Script> script = Compile(source_code.c_str());
+
+  if (execute_) Run(script);
+
+  i::Handle<i::BytecodeArray> bytecode_array =
+      top_level_ ? GetBytecodeArrayForScript(script)
+                 : GetBytecodeArrayForGlobal(test_function_name_.c_str());
+
+  stream << "---\n";
+  PrintCodeSnippet(stream, snippet);
+  PrintBytecodeArray(stream, bytecode_array);
+  stream << '\n';
+}
+
+}  // namespace interpreter
+}  // namespace internal
+}  // namespace v8