On 09/20/2017 01:24 AM, Martin Liška wrote: > > Hello. > > Thank you Jeff for very verbose explanation what's happening. I'm planning to > do > follow-up of this patch that will include clustering for bit-tests and jump > tables. > Maybe that will make aforementioned issues even more difficult, but we'll see. FWIW, the DOM changes to simplify the conditionals seem to help both cases, trigger reasonably consistently in a bootstrap and for some subset of the triggers actually result in transformations that allow other passes to do a better job in the common (-O2) case. So my inclination is to polish them a bit further get them on the trunk.
My recommendation is to ignore the two regressions for now and focus on the cleanups you're trying to do. jeff
