1 files changed, 22 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/scalar-replacement-bug1138693.js b/js/src/jit-test/tests/ion/scalar-replacement-bug1138693.js
new file mode 100644
index 000000000..4f98c0d33
--- /dev/null
+++ b/js/src/jit-test/tests/ion/scalar-replacement-bug1138693.js
@@ -0,0 +1,22 @@
+if (!this.hasOwnProperty("TypedObject"))
+  quit();
+
+var T = TypedObject;
+var ST = new T.StructType({x:T.int32});
+function check(v) {
+    return v.toSource();
+}
+function test() {
+    var fake = { toSource: ST.toSource };
+    try {
+        check(fake);
+    } catch (e) {}
+}
+test();
+var uint8 = TypedObject.uint8;
+function runTests() {
+  uint8.toSource();
+}
+runTests();
+test();
+