[Bug tree-optimization/57534] [6/7/8 Regression]: Performance regression versus 4.7.3, 4.8.1 is ~15% slower

[law at redhat dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57534

--- Comment #27 from Jeffrey A. Law <law at redhat dot com> ---
WRT c#21.  There is a good paper from Click on an integrated GVN/GCM/reassoc.

"Combining Analyses, Combining Optimizations"  It was published in PLDI. I've
probably got a copy here if you want it.