https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69580
--- Comment #5 from David Binderman <dcb314 at hotmail dot com> --- (In reply to Jeffrey A. Law from comment #4) > With the limiter, the time should come back down into the reasonable range > and I'm going drop this to a P4 once that change goes in. However, I'm > going to keep this open because I think fsm_find_thread_path is horrible in > the amount of work it duplicates and needs to be rewritten. I have another test case that currently seems to take about 17 minutes with -O2. Hopefully, this second test case is just a duplicate, but I'll wait until your change has gone in to test it. Good work and I look forward to seeing your change.