From 29ff6382e2e35739307f4ee57923fc7dac495283 Mon Sep 17 00:00:00 2001
From: Mark Williams <mwilliams@fb.com>
Date: Fri, 19 Apr 2013 15:30:53 -0700
Subject: [PATCH] Prevent an equality check from being optimized away

We were depending on a side effect of the string conversion
---
 hphp/test/quick/hhir_eq_stack.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hphp/test/quick/hhir_eq_stack.php b/hphp/test/quick/hhir_eq_stack.php
index 8443c0f53..cf3279941 100644
--- a/hphp/test/quick/hhir_eq_stack.php
+++ b/hphp/test/quick/hhir_eq_stack.php
@@ -14,6 +14,7 @@ function wat() {
   $l = array($z, $z);
   $y = $k == $z;
   $k = null;
+  return $y;
 }
 
 try { wat(); }