Let's say CodeBlock A is finalizing its baseline compile. Let's say CodeBlock B is inlining A, and asks A for a result profile. This happens as the finalizing step of the baseline compile calls shrinkToFit on its m_resultProfiles field without grabbing lock. This leads to a bad time.
<rdar://problem/26920212>
Created attachment 281762 [details] patch
Created attachment 281763 [details] patch
Comment on attachment 281763 [details] patch Clearing flags on attachment: 281763 Committed r202288: <http://trac.webkit.org/changeset/202288>
All reviewed patches have been landed. Closing bug.