Status: New
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New issue 3191 by [email protected]: performance regression for dart2js compiled havlak benchmark
http://code.google.com/p/v8/issues/detail?id=3191

We noticed a 37% slowdown on the dart Havlak benchmark when switching from v8 3.22 to 3.24. Bisecting identified

# first bad commit: [60c3d11087545979c96a018d74e386a63d22fc05] Make eager allocation site pretenuring decisions.

as the causing change. The corresponding svn revision is r18927. Attached is the JavaScript produced by dart2js that shows the issue.

Attachments:
        havlak-dart2js.js  85.1 KB

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