Status: Accepted
Owner: ----
CC: [email protected], [email protected]
Labels: Type-Bug Priority-Medium
New issue 2349 by [email protected]: eliminate HTransitionElementsKind
dominated by HCheckMaps with a different map set
http://code.google.com/p/v8/issues/detail?id=2349
I was looking at register allocation in kraken-audio-beat-detection and
noticed that in the innermost loop there is a HTransitionElementsKind that
is dominated by a map check that actually allows to prove that that
transition can never happen.
I tried writing a simple pass to eliminate transition and it seems to
improve perf by ~15%.
Attachments:
transitions-eliminator.patch 3.6 KB
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