Status: New
Owner: ----
New issue 4059 by [email protected]: Math.ceil(0) deopt loops
https://code.google.com/p/v8/issues/detail?id=4059
Closely related to issue 2890, but that bug has languished and I feel the
ceil(0) case in particular should be dealt with.
The problem is that Math.floor deopts on -0 (repeatedly) AND that Math.ceil
is implemented as -Math.floor(-x).
Just got hit by this again (very hot loop deopting because of ceil(0)).
This is such a frustrating performance landmine, because ceil(0) seems SO
innocent, and the workarounds are quite unappealing.
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