Cache WeakCell for optimized code.

src/x64/lithium-codegen-x64.cc

 // Copyright 2013 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/v8.h"
 
 #if V8_TARGET_ARCH_X64
 
 #include "src/base/bits.h"
 #include "src/code-factory.h"
@@ skipping 805 matching lines @@
   data->SetTranslationByteArray(*translations);
   data->SetInlinedFunctionCount(Smi::FromInt(inlined_function_count_));
   data->SetOptimizationId(Smi::FromInt(info_->optimization_id()));
   if (info_->IsOptimizing()) {
     // Reference to shared function info does not change between phases.
     AllowDeferredHandleDereference allow_handle_dereference;
     data->SetSharedFunctionInfo(*info_->shared_info());
   } else {
     data->SetSharedFunctionInfo(Smi::FromInt(0));
   }
+  data->SetWeakCellCache(Smi::FromInt(0));
 
   Handle<FixedArray> literals =
       factory()->NewFixedArray(deoptimization_literals_.length(), TENURED);
   { AllowDeferredHandleDereference copy_handles;
     for (int i = 0; i < deoptimization_literals_.length(); i++) {
       literals->set(i, *deoptimization_literals_[i]);
     }
     data->SetLiteralArray(*literals);
   }
 
@@ skipping 5071 matching lines @@
   CallRuntime(Runtime::kPushBlockContext, 2, instr);
   RecordSafepoint(Safepoint::kNoLazyDeopt);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64