1 files changed, 66 insertions, 0 deletions
diff --git a/deps/v8/test/mjsunit/regress/regress-embedded-cons-string.js b/deps/v8/test/mjsunit/regress/regress-embedded-cons-string.js
new file mode 100644
index 0000000000..afb3835688
--- /dev/null
+++ b/deps/v8/test/mjsunit/regress/regress-embedded-cons-string.js
@@ -0,0 +1,66 @@
+// Copyright 2013 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Flags: --fold-constants --nodead-code-elimination
+// Flags: --expose-gc --allow-natives-syntax
+// Flags: --parallel-recompilation --parallel-recompilation-delay=300
+
+if (!%IsParallelRecompilationSupported()) {
+  print("Parallel recompilation is disabled. Skipping this test.");
+  quit();
+}
+
+function assertUnoptimized(fun) {
+  assertTrue(%GetOptimizationStatus(fun) != 1);
+}
+
+function test(fun) {
+  fun();
+  fun();
+  %OptimizeFunctionOnNextCall(fun, "parallel");
+  fun();  // Trigger optimization in the background.
+  gc();   // Tenure cons string.
+  assertUnoptimized(fun);      // Compilation not complete yet.
+  %CompleteOptimization(fun);  // Compilation embeds tenured cons string.
+  gc();   // Visit embedded cons string during mark compact.
+}
+
+function f() {
+  return "abcdefghijklmn" + "123456789";
+}
+
+function g() {
+  return "abcdefghijklmn\u2603" + "123456789";
+}
+
+function h() {
+  return "abcdefghijklmn\u2603" + "123456789\u2604";
+}
+
+test(f);
+test(g);
+test(h);