Atomics.h has two confusing and bit-rotted ifdefs with comments. The first about CPU(SPARC64) was rendered obsolete when we switch from __exchange_and_add to __sync_add_and_fetch. The second was caused by a wrong definition that apparently only caused trouble on GCC.
Created attachment 214959 [details] Patch
Comment on attachment 214959 [details] Patch Attachment 214959 [details] did not pass efl-ews (efl): Output: http://webkit-queues.appspot.com/results/9858014
Created attachment 214961 [details] Patch
Comment on attachment 214961 [details] Patch Clearing flags on attachment: 214961 Committed r157865: <http://trac.webkit.org/changeset/157865>
All reviewed patches have been landed. Closing bug.