1 files changed, 14 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/bug1028910.js b/js/src/jit-test/tests/ion/bug1028910.js
new file mode 100644
index 0000000000..25c0f7762e
--- /dev/null
+++ b/js/src/jit-test/tests/ion/bug1028910.js
@@ -0,0 +1,14 @@
+setJitCompilerOption("ion.warmup.trigger", 4);
+
+var IsObject = getSelfHostedValue("IsObject")
+function test(foo) {
+    if (IsObject(foo)) {
+        print(foo.test)
+    }
+
+}
+
+for (var i=0; i<10; i++) {
+  test(1)
+  test({})
+}