Bug 128231

Summary: [ftlopt] GC should notify us if it resets to_this
Product: WebKit Reporter: Filip Pizlo <fpizlo>
Component: JavaScriptCoreAssignee: Filip Pizlo <fpizlo>
Severity: Normal CC: barraclough, bunhere, cdumez, commit-queue, ggaren, gyuyoung.kim, mark.lam, mhahnenberg, mmirman, msaboff, nrotem, oliver, rakuco, sam, sergio
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: All   
OS: All   
Bug Depends on:    
Bug Blocks: 132357    
Description Flags
work in progress
the patch ggaren: review+

Description Filip Pizlo 2014-02-04 20:06:50 PST
This appears to not be a speed-up, but it seems like a good idea, so I want a bug for the idea.  I will upload my patch.
Comment 1 Filip Pizlo 2014-02-04 20:07:20 PST
Created attachment 223205 [details]
work in progress
Comment 2 Filip Pizlo 2014-06-24 11:21:38 PDT
This used to be a slow-down but now with all of the work on improving support for polymorphic heap accesses, this is now perf-neutral.
Comment 3 Filip Pizlo 2014-06-24 11:24:55 PDT
Created attachment 233722 [details]
the patch
Comment 4 Geoffrey Garen 2014-06-24 11:28:16 PDT
Comment on attachment 233722 [details]
the patch

Comment 5 Filip Pizlo 2014-06-24 12:51:52 PDT
Landed in http://trac.webkit.org/changeset/170382