diff --git a/JSTests/microbenchmarks/regexp-u-global-es5.js b/JSTests/microbenchmarks/regexp-u-global-es5.js
new file mode 100644
index 0000000..32d32e6
--- /dev/null
+++ b/JSTests/microbenchmarks/regexp-u-global-es5.js
@@ -0,0 +1,7 @@
+function fn() {
+    return '𠮷'.match(/^.$/g);
+}
+noInline(fn);
+
+for (var i = 0; i < 1e6; ++i)
+    fn();