1 files changed, 13 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/bug792944.js b/js/src/jit-test/tests/ion/bug792944.js
new file mode 100644
index 000000000..0c4d54bbc
--- /dev/null
+++ b/js/src/jit-test/tests/ion/bug792944.js
@@ -0,0 +1,13 @@
+function whoo() {
+    (new Object()).foo()
+}
+Object.prototype.foo = function() { return undefined };
+whoo();
+Object.prototype.foo = undefined;
+gc();
+try {
+    whoo();
+    assertEq(0, 1);
+} catch(e) {
+    assertEq(e instanceof TypeError, true);
+}