[Webkit-unassigned] [Bug 56292] New: Should try to avoid popping return address in leaf functions.
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Sun Mar 13 23:31:08 PDT 2011
https://bugs.webkit.org/show_bug.cgi?id=56292
Summary: Should try to avoid popping return address in leaf
functions.
Product: WebKit
Version: 528+ (Nightly build)
Platform: PC
OS/Version: Mac OS X 10.5
Status: NEW
Severity: Normal
Priority: P2
Component: JavaScriptCore
AssignedTo: webkit-unassigned at lists.webkit.org
ReportedBy: barraclough at apple.com
Presently we preserve the return address in the CallFrameHeader in the RegisterFile,
since we don't allow any recursion on the machine stack. We should fairly trivially
be able to avoid the extra push/pop of the return address in leaf functions.
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