Bug 126092 - WriteBarrier code for Repatch is wrong
Summary: WriteBarrier code for Repatch is wrong
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: JavaScriptCore (show other bugs)
Version: 528+ (Nightly build)
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Mark Hahnenberg
URL:
Keywords:
Depends on:
Blocks: 121074
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Reported: 2013-12-20 16:11 PST by Mark Hahnenberg
Modified: 2014-01-07 09:58 PST (History)
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Description Mark Hahnenberg 2013-12-20 16:11:21 PST
It doesn't handle saving/restoring registers across write barrier slow path calls correctly. We don't take into account that there could be other registers in use that the ScratchRegisterAllocator doesn't know/care about.