Regularly check hash set addresses to verify memory integrity.

BUG=

Review URL: https://codereview.chromium.org/804603006

Cr-Commit-Position: refs/heads/master@{#26002}

src/heap/store-buffer.cc

@@ -81,6 +81,9 @@ void StoreBuffer::SetUp() {
   hash_sets_are_empty_ = false;
 
   ClearFilteringHashSets();
+
+  heap_->isolate()->set_store_buffer_hash_set_1_address(hash_set_1_);
+  heap_->isolate()->set_store_buffer_hash_set_2_address(hash_set_2_);
 }
 
 
@@ -554,6 +557,9 @@ void StoreBuffer::IteratePointersToNewSpace(ObjectSlotCallback slot_callback,
 
 
 void StoreBuffer::Compact() {
+  CHECK(hash_set_1_ == heap_->isolate()->store_buffer_hash_set_1_address());
+  CHECK(hash_set_2_ == heap_->isolate()->store_buffer_hash_set_2_address());
+
   Address* top = reinterpret_cast<Address*>(heap_->store_buffer_top());
 
   if (top == start_) return;

src/isolate.cc

@@ -1657,6 +1657,8 @@ Isolate::Isolate(bool enable_serializer)
       // TODO(bmeurer) Initialized lazily because it depends on flags; can
       // be fixed once the default isolate cleanup is done.
       random_number_generator_(NULL),
+      store_buffer_hash_set_1_address_(NULL),
+      store_buffer_hash_set_2_address_(NULL),
       serializer_enabled_(enable_serializer),
       has_fatal_error_(false),
       initialized_from_snapshot_(false),

src/isolate.h

@@ -1118,6 +1118,24 @@ class Isolate {
   int GetNextUniqueSharedFunctionInfoId() { return next_unique_sfi_id_++; }
 #endif
 
+  void set_store_buffer_hash_set_1_address(
+      uintptr_t* store_buffer_hash_set_1_address) {
+    store_buffer_hash_set_1_address_ = store_buffer_hash_set_1_address;
+  }
+
+  uintptr_t* store_buffer_hash_set_1_address() {
+    return store_buffer_hash_set_1_address_;
+  }
+
+  void set_store_buffer_hash_set_2_address(
+      uintptr_t* store_buffer_hash_set_2_address) {
+    store_buffer_hash_set_2_address_ = store_buffer_hash_set_2_address;
+  }
+
+  uintptr_t* store_buffer_hash_set_2_address() {
+    return store_buffer_hash_set_2_address_;
+  }
+
  private:
   explicit Isolate(bool enable_serializer);
 
@@ -1270,6 +1288,9 @@ class Isolate {
   unibrow::Mapping<unibrow::Ecma262Canonicalize> interp_canonicalize_mapping_;
   CallInterfaceDescriptorData* call_descriptor_data_;
   base::RandomNumberGenerator* random_number_generator_;
+  // TODO(hpayer): Remove the following store buffer addresses.
+  uintptr_t* store_buffer_hash_set_1_address_;
+  uintptr_t* store_buffer_hash_set_2_address_;
 
   // Whether the isolate has been created for snapshotting.
   bool serializer_enabled_;