Bug 151063

Summary: Air should have a phase for hoisting stores to relieve register pressure
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    

Description Filip Pizlo 2015-11-09 17:00:06 PST 
If we see a store, we should be able to hoist up to just after the previous interfering effect - like the previous memory effect or the last instruction to Def a value we Use.

I thought of this when doing this manually in CCall lowering.