Bug 56292 - Should try to avoid popping return address in leaf functions.
: Should try to avoid popping return address in leaf functions.
Status: NEW
Product: WebKit
Classification: Unclassified
Component: JavaScriptCore
: 528+ (Nightly build)
: PC Mac OS X 10.5
: P2 Normal
Assigned To: Nobody
:
Depends on:
Blocks:
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Reported: 2011-03-13 23:31 PDT by Gavin Barraclough
Modified: 2011-03-13 23:31 PDT (History)
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Description Gavin Barraclough 2011-03-13 23:31:08 PDT
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.