Bug 84653 - DFG OSR exit should ensure that all variables have been initialized
Summary: DFG OSR exit should ensure that all variables have been initialized
Status: RESOLVED FIXED
Alias: None
Product: WebKit
Classification: Unclassified
Component: JavaScriptCore (show other bugs)
Version: 528+ (Nightly build)
Hardware: All All
: P2 Normal
Assignee: Nobody
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2012-04-23 17:04 PDT by Filip Pizlo
Modified: 2012-04-23 17:38 PDT (History)
0 users

See Also:

Attachments
the patch (25.38 KB, patch)
2012-04-23 17:11 PDT, Filip Pizlo 		barraclough: review+
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Description Filip Pizlo 2012-04-23 17:04:55 PDT 
If we OSR exit at a point where a variable was not initialized, then we should initialize it, since the baseline JIT critically relies on all variables being initialized.

<rdar://problem/11258183>
Comment 1 Filip Pizlo 2012-04-23 17:11:31 PDT 
Created attachment 138463 [details]
the patch
Comment 2 Filip Pizlo 2012-04-23 17:38:18 PDT 
Landed in http://trac.webkit.org/changeset/114969