736976 - Improve regexp parsing

Status: RESOLVED DUPLICATE of bug 643646

(Core :: JavaScript Engine, defect)

Description

[Jean Claveau]

User Agent: Mozilla/5.0 (X11; Linux i686; rv:14.0) Gecko/20120318 Firefox/14.0a1
Build ID: 20120318031036

Steps to reproduce:

I ran V8 benchmark v7 and found a ~93% best perfs on regexps parsing for Chromium.

http://v8.googlecode.com/svn/data/benchmarks/v7/run.html

Then I asked myself why and it looks like Chromium team made a great optimisation job concerning it : http://blog.chromium.org/2009/02/irregexp-google-chromes-new-regexp.html

They stopped using PCRE implementetion and made their own one. 



Expected results:

Mozilla's team may get interest in this experience and make the web faster and better :).