Bug 134256

Summary: [ftlopt] StructureAbstractValue::onlyStructure() should return nullptr if isClobbered()
Product: WebKit Reporter: Filip Pizlo <fpizlo>
Component: JavaScriptCoreAssignee: Filip Pizlo <fpizlo>
Severity: Normal CC: barraclough, ggaren, mark.lam, mhahnenberg, msaboff, oliver, sam
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: All   
OS: All   
Description Flags
the patch msaboff: review+

Description Filip Pizlo 2014-06-24 11:18:51 PDT
This is a bug, but it's kind of benign right now since none of the optimizations that use onlyStructure() would trigger in regions of code where structures are clobbered.
Comment 1 Filip Pizlo 2014-06-24 11:20:55 PDT
Created attachment 233721 [details]
the patch
Comment 2 Michael Saboff 2014-06-24 11:27:55 PDT
Comment on attachment 233721 [details]
the patch

Comment 3 Filip Pizlo 2014-06-24 12:07:13 PDT
Landed in http://trac.webkit.org/changeset/170376