Bug 77858 - OSR loop entry into DFG sometimes happens at loops for which we have no CFA information
Summary: OSR loop entry into DFG sometimes happens at loops for which we have no CFA i...
Status: NEW
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: 2012-02-06 01:17 PST by Filip Pizlo
Modified: 2012-02-06 01:18 PST (History)
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Description Filip Pizlo 2012-02-06 01:17:40 PST 
This is a two-fold bug:

1) OSR entry should not have succeeded in that case.

2) CFA should not have thought the loop to be not executable.

We should fix both bugs.
Comment 1 Filip Pizlo 2012-02-06 01:18:07 PST 
<rdar://problem/10811435>