Bug 151823

Summary: B3 stackmaps should support an internalClobbered register set
Product: WebKit Reporter: Filip Pizlo <fpizlo>
Component: JavaScriptCoreAssignee: Nobody <webkit-unassigned>
Status: NEW    
Severity: Normal    
Priority: P2    
Version: WebKit Nightly Build   
Hardware: All   
OS: All   
Bug Depends on:    
Bug Blocks: 154319    

Filip Pizlo
Reported 2015-12-03 14:26:26 PST
Registers that are internally clobbered don't interfere with any early uses or late defs, but they do interfere with anything live across the instruction. This could be used to implement GetByIdFlush and PutByIdFlush better.
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