RESOLVED FIXED95141
Structure check hoisting should abstain if the OSR entry's must-handle value for the respective variable has a different structure 
https://bugs.webkit.org/show_bug.cgi?id=95141
Summary Structure check hoisting should abstain if the OSR entry's must-handle value ...
Filip Pizlo
Reported 2012-08-27 15:37:05 PDT
Patch forthcoming. <rdar://problem/12170401>
Attachments
the patch (3.49 KB, patch)
2012-08-27 15:38 PDT, Filip Pizlo 		mhahnenberg: review+
DetailsFormatted DiffDiff
View All Add attachment proposed patch, testcase, etc.
Filip Pizlo
Comment 1 2012-08-27 15:38:23 PDT
Created attachment 160828 [details] the patch
Mark Hahnenberg
Comment 2 2012-08-27 15:42:49 PDT
Comment on attachment 160828 [details] the patch A test would be nice. Looks good otherwise.
Filip Pizlo
Comment 3 2012-08-27 17:40:47 PDT
Landed in http://trac.webkit.org/changeset/126826
Filip Pizlo
Comment 4 2012-08-28 11:01:06 PDT
(In reply to comment #2) > (From update of attachment 160828 [details]) > A test would be nice. Looks good otherwise. I tried to come up with a test. But that requires perfect timing to make something evil happen right at the time that OSR kicks in. I decided that even if I succeeded in making such a test, it would be extremely fragile and probably not worth it.
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