[Webkit-unassigned] [Bug 133136] Latest emscripten life benchmark is 4x slower

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Fri May 23 14:29:26 PDT 2014


--- Comment #1 from Filip Pizlo <fpizlo at apple.com>  2014-05-23 14:29:48 PST ---

You're doing a clever thing where you add a boolean to a number, and we're being very dumb about it - we end up:

- Predicting that the result of boolean + number will be a string.  That's false.

- Deciding that the best way to execute boolean + number is with the deepest of addition slow paths.  That's dumb.

I'll fix it.

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