[Webkit-unassigned] [Bug 67670] New: DFG JIT does not optimize booleans
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Tue Sep 6 13:52:19 PDT 2011
https://bugs.webkit.org/show_bug.cgi?id=67670
Summary: DFG JIT does not optimize booleans
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 DFG JIT tries to perform type-specific optimizations, particularly for arrays, cells, integers, and doubles. But it does nothing for booleans, even though some obvious optimizations are possible, like simplifying the code emitted for Branch() if the input is known or predicted boolean.
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