1 files changed, 46 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/for-of/iterclose-generator-throw.js b/js/src/jit-test/tests/for-of/iterclose-generator-throw.js
new file mode 100644
index 0000000000..f380b9796d
--- /dev/null
+++ b/js/src/jit-test/tests/for-of/iterclose-generator-throw.js
@@ -0,0 +1,46 @@
+var finallyCount = 0;
+
+function* gen(o) {
+  try {
+    yield 1;
+    yield 2;
+    yield 3;
+  } finally {
+    finallyCount++;
+  }
+}
+
+function closeIter(o) {
+  for (var x of o) {
+    if (x == 2) {
+      throw "good"
+    }
+  }
+}
+
+function test() {
+  with ({}) {}
+  finallyCount = 0;
+
+  for (var i = 0; i < 100; i++) {
+    var caught = "bad";
+    try {
+      closeIter(gen());
+    } catch (e) {
+      caught = e;
+    }
+    assertEq(caught, "good");
+  }
+  assertEq(finallyCount, 100);
+}
+
+with ({}) {}
+
+test();
+
+// Force an IC in Ion.
+try {
+  closeIter([1,2,3,4,5]);
+} catch {}
+
+test();