Add m-esr52 at 52.6.0

1 files changed, 63 insertions, 0 deletions

diff --git a/js/src/tests/js1_5/GC/regress-324278.js b/js/src/tests/js1_5/GC/regress-324278.js
new file mode 100644
index 000000000..56996994d
--- /dev/null
+++ b/js/src/tests/js1_5/GC/regress-324278.js
@@ -0,0 +1,63 @@
+// |reftest| skip -- slow, obsoleted by 98409 fix
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 324278;
+var summary = 'GC without recursion';
+var actual = 'No Crash';
+var expect = 'No Crash';
+
+printBugNumber(BUGNUMBER);
+printStatus (summary);
+
+// Number to push native stack size beyond 10MB if GC recurses generating
+// segfault on Fedora Core / Ubuntu Linuxes where the stack size by default
+// is 10MB/8MB.
+var N = 100*1000;
+
+function build(N) {
+  // Exploit the fact that (in ES3), regexp literals are shared between
+  // function invocations. Thus we build the following chain:
+  // chainTop: function->regexp->function->regexp....->null
+  // to check how GC would deal with this chain.
+
+  var chainTop = null;
+  for (var i = 0; i != N; ++i) {
+    var f = Function('some_arg'+i, ' return /test/;');
+    var re = f();
+    re.previous = chainTop;
+    chainTop = f;
+  }
+  return chainTop;
+}
+
+function check(chainTop, N) {
+  for (var i = 0; i != N; ++i) {
+    var re = chainTop();
+    chainTop = re.previous;
+  }
+  if (chainTop !== null)
+    throw "Bad chainTop";
+
+}
+
+if (typeof gc != "function") {
+  gc = function() {
+    for (var i = 0; i != 50*1000; ++i) {
+      var tmp = new Object();
+    }
+  }
+}
+
+var chainTop = build(N);
+printStatus("BUILT");
+gc();
+check(chainTop, N);
+printStatus("CHECKED");
+chainTop = null;
+gc();
+ 
+reportCompare(expect, actual, summary);