1 files changed, 25 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/bug1218065.js b/js/src/jit-test/tests/ion/bug1218065.js
new file mode 100644
index 0000000000..f72febc11f
--- /dev/null
+++ b/js/src/jit-test/tests/ion/bug1218065.js
@@ -0,0 +1,25 @@
+function f() {
+    const b = 0;
+    switch (1) {
+      case b = 0:
+    }
+}
+var err;
+try {
+    f();
+} catch(e) {
+    err = e;
+}
+assertEq(err.name, "TypeError");
+
+function g() {
+    const z = 0;
+    while (z = 1) {}
+}
+err = null;
+try {
+    g();
+} catch(e) {
+    err = e;
+}
+assertEq(err.name, "TypeError");