[Webkit-unassigned] [Bug 154683] New: [DFG][FTL][B3] Support floor and ceil
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Thu Feb 25 10:15:33 PST 2016
https://bugs.webkit.org/show_bug.cgi?id=154683
Bug ID: 154683
Summary: [DFG][FTL][B3] Support floor and ceil
Classification: Unclassified
Product: WebKit
Version: WebKit Nightly Build
Hardware: Unspecified
OS: Unspecified
Status: NEW
Severity: Normal
Priority: P2
Component: JavaScriptCore
Assignee: webkit-unassigned at lists.webkit.org
Reporter: utatane.tea at gmail.com
Math.floor and Math.ceil are frequently called. builtin's @toInteger always calls @floor with @abs.
And SunSpider and V8 bench also calls the both (especially, Math.floor).
Similarly to the ArithRound, adding ArithFloor and ArithCeil is nice.
If it is added, we can convert DFG ArithFloor and ArithCeil to Identity if the given value is Int32!
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