new file mode 100644
--- /dev/null
+++ b/js/src/jit-test/tests/basic/bug593611.js
@@ -0,0 +1,10 @@
+(function() {
+  __defineGetter__("x", /x/.constructor)
+})()
+for (var a = 0; a < 4; ++a) {
+  if (a % 4 == 1) {
+    gc()
+  } else {
+    print(x);
+  }
+}