[Webkit-unassigned] [Bug 67993] New: Prediction tracking is not precise enough
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Tue Sep 13 02:44:41 PDT 2011
https://bugs.webkit.org/show_bug.cgi?id=67993
Summary: Prediction tracking is not precise enough
Product: WebKit
Version: 528+ (Nightly build)
Platform: All
OS/Version: All
Status: NEW
Severity: Normal
Priority: P2
Component: JavaScriptCore
AssignedTo: webkit-unassigned at lists.webkit.org
ReportedBy: fpizlo at apple.com
The predictions deduced from value profiles are not precise. For example, we can identify something as being an array, or just as a cell, but we don't know when something is an object that is not an array. We also don't have any way of distinguishing between Top (i.e. "could be anything") and Undefined/Null. Prediction tracking should be at least precise enough to be able to identify common kinds of objects like JSFinalObject, JSString, and JSArray, and should be able to distinguish between a type being completely unknown and being, say, "Undefined or Null or Object".
--
Configure bugmail: https://bugs.webkit.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.
More information about the webkit-unassigned
mailing list