Bug 126092

Summary: WriteBarrier code for Repatch is wrong
Product: WebKit Reporter: Mark Hahnenberg <mhahnenberg>
Component: JavaScriptCoreAssignee: Mark Hahnenberg <mhahnenberg>
Status: NEW ---    
Severity: Normal    
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on:    
Bug Blocks: 121074    

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.