From b86abc2ecfea9ccbb93cad2fe4e9f8574beb7ed8 Mon Sep 17 00:00:00 2001
From: Alon Zakai <alonzakai@gmail.com>
Date: Mon, 23 Dec 2013 15:43:01 -0800
Subject: fix bug where close-together tempDoublePtr operations could cross
 each other

---
 tools/js-optimizer.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'tools/js-optimizer.js')

diff --git a/tools/js-optimizer.js b/tools/js-optimizer.js
index 9efca25f..6e82451c 100644
--- a/tools/js-optimizer.js
+++ b/tools/js-optimizer.js
@@ -2427,7 +2427,12 @@ function eliminate(ast, memSafe) {
               if (allowTracking) track(name, node[3], node);
             }
           } else if (target[0] === 'sub') {
-            if (!isTempDoublePtrAccess(target) && !memoryInvalidated) {
+            if (isTempDoublePtrAccess(target)) {
+              if (!globalsInvalidated) {
+                invalidateGlobals();
+                globalsInvalidated = true;
+              }
+            } else if (!memoryInvalidated) {
               invalidateMemory();
               memoryInvalidated = true;
             }
-- 
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