From 7264bc0178e7e6af7cfe02e9e0c6b26ee0e6007f Mon Sep 17 00:00:00 2001
From: Ingvar Stepanyan <me@rreverser.com>
Date: Thu, 5 Feb 2015 00:02:21 +0200
Subject: [PATCH] Fix found V8 deopt.

Increases perf from 230K to 360K lines/sec on std bench on my machine.
---
 acorn.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/acorn.js b/acorn.js
index b129ed62e6..02e8d5491f 100644
--- a/acorn.js
+++ b/acorn.js
@@ -1238,7 +1238,7 @@
   function readWord1() {
     containsEsc = false;
     var word = "", first = true, chunkStart = tokPos;
-    for (;;) {
+    while (tokPos < inputLen) {
       var ch = input.charCodeAt(tokPos);
       if (isIdentifierChar(ch)) {
         ++tokPos;