From: sandholm@chromium.org <sandholm@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00>
Date: Tue, 22 Feb 2011 11:21:15 +0000 (+0000)
Subject: Improve parseInt.
X-Git-Tag: upstream/4.7.83~20129
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9d4b0fa93297e0fe57ade36cf13f2c8f45913aeb;p=platform%2Fupstream%2Fv8.git

Improve parseInt.
Review URL: http://codereview.chromium.org/6546055

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6888 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
---

diff --git a/src/v8natives.js b/src/v8natives.js
index 884b6f4..91e19c1 100644
--- a/src/v8natives.js
+++ b/src/v8natives.js
@@ -92,7 +92,7 @@ function GlobalIsFinite(number) {
 
 // ECMA-262 - 15.1.2.2
 function GlobalParseInt(string, radix) {
-  if (IS_UNDEFINED(radix)) {
+  if (IS_UNDEFINED(radix) || radix === 10 || radix === 0) {
     // Some people use parseInt instead of Math.floor.  This
     // optimization makes parseInt on a Smi 12 times faster (60ns
     // vs 800ns).  The following optimization makes parseInt on a
@@ -105,7 +105,7 @@ function GlobalParseInt(string, radix) {
       // Truncate number.
       return string | 0;
     }
-    radix = 0;
+    if (IS_UNDEFINED(radix)) radix = 0;
   } else {
     radix = TO_INT32(radix);
     if (!(radix == 0 || (2 <= radix && radix <= 36)))