1 files changed, 25 insertions, 0 deletions
diff --git a/deps/v8/test/mjsunit/compiler/regress-905555-2.js b/deps/v8/test/mjsunit/compiler/regress-905555-2.js
new file mode 100644
index 0000000000..5852c6dd43
--- /dev/null
+++ b/deps/v8/test/mjsunit/compiler/regress-905555-2.js
@@ -0,0 +1,25 @@
+// Copyright 2018 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.
+
+// Flags: --allow-natives-syntax --block-concurrent-recompilation --noalways-opt
+
+global = 1;
+
+function boom(value) {
+  return global;
+}
+
+assertEquals(1, boom());
+assertEquals(1, boom());
+%OptimizeFunctionOnNextCall(boom, "concurrent");
+assertEquals(1, boom());
+
+delete this.global;
+
+%UnblockConcurrentRecompilation();
+
+// boom should be deoptimized because the global property cell has changed.
+assertUnoptimized(boom, "sync");
+
+assertThrows(boom);