https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68654
--- Comment #19 from Jeffrey A. Law <law at redhat dot com> --- What's initially more important than a particular improvement or degradation of performance is bringing more stability to the coalescing results -- so that we can focus on issues with coalescing rather than getting distracted by the semi-random performance improvements/drops that we have now.
