1 files changed, 37 insertions, 0 deletions
diff --git a/deps/v8/test/mjsunit/compiler/regress-788539.js b/deps/v8/test/mjsunit/compiler/regress-788539.js
new file mode 100644
index 0000000000..889090cdd9
--- /dev/null
+++ b/deps/v8/test/mjsunit/compiler/regress-788539.js
@@ -0,0 +1,37 @@
+// Copyright 2017 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 --turbo-verify
+
+// This test creates a FrameState node with a DeadValue parent framestate.
+// Ensure that deadness is propagated along FrameState edges.
+
+function f1() {
+  return this;
+}
+
+function f2(x, value, type) {
+  x instanceof type
+}
+
+function f3(a) {
+  a.x = 0;
+  if (a.x === 0) {
+    a[1] = 0.1;
+  }
+  class B {
+  }
+  class C extends B {
+    bar() {
+      return super.foo()
+    }
+  }
+  B.prototype.foo = f1;
+  f2(new C().bar.call(), Object(), String);
+}
+
+f3(new Array(1));
+f3(new Array(1));
+%OptimizeFunctionOnNextCall(f3);
+f3(new Array(1));