[Webkit-unassigned] [Bug 94665] Baseline optimizer should try to optimize per-port if global optimization fails

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=94665





--- Comment #1 from Dirk Pranke <dpranke at chromium.org>  2012-08-21 20:08:34 PST ---
to provide a little more detail, what happens is that mountain lion fails differently from every other port, so we have two results, X, and Y.

The baseline optimizer bins mountain-lion into one bucket, and all of the other ports into the other bucket; so the most_common_specific_directory for all of the other ports is the generic LayoutTests directory; this result is wrong, because it fails to account for the fact that chromium (and mac-lion and mac-snowleopard) won't see that result, it'll use the ML result.

although I spent some time thinking about it, it wasn't obvious to me how to change the algorithm in baselineoptimizer to accomodate this. It seemed like we might have to complete redo the approach, but maybe I'm missing something?

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