1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/warp/stub-folding-transition.js b/js/src/jit-test/tests/warp/stub-folding-transition.js
new file mode 100644
index 0000000000..865e6dc189
--- /dev/null
+++ b/js/src/jit-test/tests/warp/stub-folding-transition.js
@@ -0,0 +1,24 @@
+var sum = 0;
+function foo(o) {
+    sum += o.x;
+}
+
+with({}) {}
+
+// Trigger stub folding in MaybeTransition
+for (var i = 0; i < 200; i++) {
+    foo({x:1, a:1});
+    foo({x:1, b:1});
+    foo({x:1, c:1});
+    foo({x:1, d:1});
+    foo({x:1, e:1});
+    foo({x:1, f:1});
+    foo({x:1, g:1});
+    foo({x:1, h:1});
+    foo({x:1, i:1});
+    foo({x:1, j:1});
+    foo({x:1, k:1});
+    foo({x:1, l:1});
+}
+
+assertEq(sum, 2400);