[Interpreter] Add support for jumps using constants with wide operands.

src/objects.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/objects.h"
 
 #include <cmath>
 #include <iomanip>
 #include <sstream>
 
@@ skipping 14789 matching lines @@
   int bytecode_size = 0;
   for (int i = 0; i < this->length(); i += bytecode_size) {
     const uint8_t* bytecode_start = &first_bytecode_address[i];
     interpreter::Bytecode bytecode =
         interpreter::Bytecodes::FromByte(bytecode_start[0]);
     bytecode_size = interpreter::Bytecodes::Size(bytecode);
 
     SNPrintF(buf, "%p", bytecode_start);
     os << buf.start() << " : ";
     interpreter::Bytecodes::Decode(os, bytecode_start, parameter_count());
-    if (interpreter::Bytecodes::IsJump(bytecode)) {
-      int offset = static_cast<int8_t>(bytecode_start[1]);
+
+    if (interpreter::Bytecodes::IsJumpConstantWide(bytecode)) {
+      DCHECK_EQ(bytecode_size, 3);
+      int index = static_cast<int>(ReadUnalignedUInt16(bytecode_start + 1));
+      int offset = Smi::cast(constant_pool()->get(index))->value();
       SNPrintF(buf, " (%p)", bytecode_start + offset);
       os << buf.start();
     } else if (interpreter::Bytecodes::IsJumpConstant(bytecode)) {
+      DCHECK_EQ(bytecode_size, 2);
       int index = static_cast<int>(bytecode_start[1]);
       int offset = Smi::cast(constant_pool()->get(index))->value();
       SNPrintF(buf, " (%p)", bytecode_start + offset);
       os << buf.start();
+    } else if (interpreter::Bytecodes::IsJump(bytecode)) {
+      DCHECK_EQ(bytecode_size, 2);
+      int offset = static_cast<int8_t>(bytecode_start[1]);
+      SNPrintF(buf, " (%p)", bytecode_start + offset);
+      os << buf.start();
     }
     os << "\n";
   }
 
   os << "Constant pool (size = " << constant_pool()->length() << ")\n";
   constant_pool()->Print();
 }
 
 
 // static
@@ skipping 4626 matching lines @@
   if (cell->value() != *new_value) {
     cell->set_value(*new_value);
     Isolate* isolate = cell->GetIsolate();
     cell->dependent_code()->DeoptimizeDependentCodeGroup(
         isolate, DependentCode::kPropertyCellChangedGroup);
   }
 }
 
 }  // namespace internal
 }  // namespace v8