Encode any deoptimizer entry in serialized data.

src/snapshot/deserializer.h

 // 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.
 
 #ifndef V8_SNAPSHOT_DESERIALIZER_H_
 #define V8_SNAPSHOT_DESERIALIZER_H_
 
+#include "src/deoptimizer.h"
 #include "src/heap/heap.h"
 #include "src/objects.h"
 #include "src/snapshot/serializer-common.h"
 #include "src/snapshot/snapshot-source-sink.h"
 
 namespace v8 {
 namespace internal {
 
 // Used for platforms with embedded constant pools to trigger deserialization
 // of objects found in code.
@@ skipping 16 matching lines @@
       : isolate_(NULL),
         source_(data->Payload()),
         magic_number_(data->GetMagicNumber()),
         num_extra_references_(data->GetExtraReferences()),
         next_map_index_(0),
         external_reference_table_(NULL),
         deserialized_large_objects_(0),
         deserializing_user_code_(deserializing_user_code),
         next_alignment_(kWordAligned) {
     DecodeReservation(data->Reservations());
+    memset(max_deopt_entry_ids_, 0, sizeof(max_deopt_entry_ids_));
   }
 
   ~Deserializer() override;
 
   // Deserialize the snapshot into an empty heap.
   void Deserialize(Isolate* isolate);
 
   // Deserialize a single object and the objects reachable from it.
   MaybeHandle<Object> DeserializePartial(
       Isolate* isolate, Handle<JSGlobalProxy> global_proxy,
       v8::DeserializeEmbedderFieldsCallback embedder_fields_deserializer);
 
   // Deserialize an object graph. Fail gracefully.
   MaybeHandle<HeapObject> DeserializeObject(Isolate* isolate);
 
   // Add an object to back an attached reference. The order to add objects must
   // mirror the order they are added in the serializer.
   void AddAttachedObject(Handle<HeapObject> attached_object) {
     attached_objects_.Add(attached_object);
   }
 
+  int max_deopt_entry_id(Deoptimizer::BailoutType bailout_type) const {
+    return max_deopt_entry_ids_[bailout_type];
+  }
+
  private:
+  Address DecodeExternalReference(uint32_t reference_id);
   void VisitPointers(Object** start, Object** end) override;
 
   void Synchronize(VisitorSynchronization::SyncTag tag) override;
 
   void VisitRuntimeEntry(RelocInfo* rinfo) override { UNREACHABLE(); }
 
   void Initialize(Isolate* isolate);
 
   bool deserializing_user_code() { return deserializing_user_code_; }
 
@@ skipping 68 matching lines @@
 
   List<HeapObject*> deserialized_large_objects_;
   List<Code*> new_code_objects_;
   List<AccessorInfo*> accessor_infos_;
   List<Handle<String> > new_internalized_strings_;
   List<Handle<Script> > new_scripts_;
 
   bool deserializing_user_code_;
 
   AllocationAlignment next_alignment_;
+  int max_deopt_entry_ids_[Deoptimizer::kLastBailoutType + 1];
 
   DISALLOW_COPY_AND_ASSIGN(Deserializer);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_SNAPSHOT_DESERIALIZER_H_