[Webkit-unassigned] [Bug 15900] New: 15% of string-validate-input.js is spent compiling the same regular expression

[bugzilla-daemon at webkit.org]

http://bugs.webkit.org/show_bug.cgi?id=15900

           Summary: 15% of string-validate-input.js is spent compiling the
                    same regular expression
           Product: WebKit
           Version: 525+ (Nightly build)
          Platform: Macintosh
        OS/Version: Mac OS X 10.4
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: eric at webkit.org
                CC: ggaren at apple.com
 BugsThisDependsOn: 15861


15% of string-validate-input.js is spent compiling the same regular expression

I thought that ggaren fixed this with 15861, but it seems not.  Unless I'm
somehow missing his change in my git-repo.

I tried moving "pattern" outside of the loop in string-validate-input.js and
saw a 15% speed increase.  Looking at the shark sample, we're still spending
all our time compiling the regexp.  Maybe the patch he landed as part of the
old bug was just the "first step in the right direction".  Well, here is a bug
to cover the other steps. :)


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