diff --git a/compiler/optimizing/load_store_analysis.cc b/compiler/optimizing/load_store_analysis.cc
new file mode 100644
index 0000000..f2ee345
--- /dev/null
+++ b/compiler/optimizing/load_store_analysis.cc
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "load_store_analysis.h"
+
+namespace art {
+
+// A cap for the number of heap locations to prevent pathological time/space consumption.
+// The number of heap locations for most of the methods stays below this threshold.
+constexpr size_t kMaxNumberOfHeapLocations = 32;
+
+void LoadStoreAnalysis::Run() {
+  for (HBasicBlock* block : graph_->GetReversePostOrder()) {
+    heap_location_collector_.VisitBasicBlock(block);
+  }
+
+  if (heap_location_collector_.GetNumberOfHeapLocations() > kMaxNumberOfHeapLocations) {
+    // Bail out if there are too many heap locations to deal with.
+    heap_location_collector_.CleanUp();
+    return;
+  }
+  if (!heap_location_collector_.HasHeapStores()) {
+    // Without heap stores, this pass would act mostly as GVN on heap accesses.
+    heap_location_collector_.CleanUp();
+    return;
+  }
+  if (heap_location_collector_.HasVolatile() || heap_location_collector_.HasMonitorOps()) {
+    // Don't do load/store elimination if the method has volatile field accesses or
+    // monitor operations, for now.
+    // TODO: do it right.
+    heap_location_collector_.CleanUp();
+    return;
+  }
+
+  heap_location_collector_.BuildAliasingMatrix();
+}
+
+}  // namespace art