Encode any deoptimizer entry in serialized data.

src/snapshot/serializer-common.cc

Index: src/snapshot/serializer-common.cc
diff --git a/src/snapshot/serializer-common.cc b/src/snapshot/serializer-common.cc
index 89aabdf263b3e70534a3c248ab9002134edbb88d..e3037b6d4d1034257a9748eca984f000741a2f4e 100644
--- a/src/snapshot/serializer-common.cc
+++ b/src/snapshot/serializer-common.cc
@@ -4,6 +4,7 @@
 
 #include "src/snapshot/serializer-common.h"
 
+#include "src/deoptimizer.h"
 #include "src/external-reference-table.h"
 #include "src/ic/stub-cache.h"
 #include "src/list-inl.h"
@@ -12,7 +13,8 @@
 namespace v8 {
 namespace internal {
 
-ExternalReferenceEncoder::ExternalReferenceEncoder(Isolate* isolate) {
+ExternalReferenceEncoder::ExternalReferenceEncoder(Isolate* isolate)
+    : isolate_(isolate) {
   map_ = isolate->external_reference_map();
 #ifdef DEBUG
   table_ = ExternalReferenceTable::instance(isolate);
@@ -34,6 +36,18 @@ ExternalReferenceEncoder::ExternalReferenceEncoder(Isolate* isolate) {
 uint32_t ExternalReferenceEncoder::Encode(Address address) const {
   Maybe<uint32_t> maybe_index = map_->Get(address);
   if (maybe_index.IsNothing()) {
+    int id =
+        Deoptimizer::GetDeoptimizationId(isolate_, address, Deoptimizer::EAGER);
+    if (id != Deoptimizer::kNotDeoptimizationEntry)
+      return id | ExternalReferenceTable::kEagerDeoptFlag;
+    id = Deoptimizer::GetDeoptimizationId(isolate_, address, Deoptimizer::LAZY);
+    if (id != Deoptimizer::kNotDeoptimizationEntry)
+      return id | ExternalReferenceTable::kLazyDeoptFlag;
+    id = Deoptimizer::GetDeoptimizationId(isolate_, address, Deoptimizer::SOFT);
+    if (id != Deoptimizer::kNotDeoptimizationEntry)
+      return id | ExternalReferenceTable::kSoftDeoptFlag;
+  }
+  if (maybe_index.IsNothing()) {
     void* addr = address;
     v8::base::OS::PrintError("Unknown external reference %p.\n", addr);
     v8::base::OS::PrintError("%s", ExternalReferenceTable::ResolveSymbol(addr));