Tracing of regular expressions including the original express, number of times used, number of times matched and optional JIT address would be helpful to debug and tune regular expression code.
Created attachment 66965 [details] RegExp Tracing Patch
Comment on attachment 66965 [details] RegExp Tracing Patch Rejecting patch 66965 from commit-queue. msaboff@apple.com does not have committer permissions according to http://trac.webkit.org/browser/trunk/WebKitTools/Scripts/webkitpy/common/config/committers.py. - If you do not have committer rights please read http://webkit.org/coding/contributing.html for instructions on how to use bugzilla flags. - If you have committer rights please correct the error in WebKitTools/Scripts/webkitpy/common/config/committers.py by adding yourself to the file (no review needed). The commit-queue restarts itself every 2 hours. After restart the commit-queue will correctly respect your committer rights.
Comment on attachment 66965 [details] RegExp Tracing Patch Clearing flags on attachment: 66965 Committed r67146: <http://trac.webkit.org/changeset/67146>
All reviewed patches have been landed. Closing bug.
+#if ENABLE(REGEXP_TRACING) + delete m_rtTraceList; +#endif Looks like m_rtTraceList could be an OwnPtr instead.