Gotta start somewhere.
It turns out that the ArithSub DFG/FTL snippets are totally busted even for the simplest of test cases. See: https://bugs.webkit.org/show_bug.cgi?id=152708
Created attachment 268217 [details]
Created attachment 268218 [details]
Created attachment 268219 [details]
Attachment 268219 [details] did not pass style-queue:
Total errors found: 2 in 4 files
If any of these errors are false positives, please file a bug against check-webkit-style.
Landed in http://trac.webkit.org/changeset/194548