[Bug tree-optimization/90316] [8/9 Regression] large compile time increase in opt / alias stmt walking for Go example

[thanm at google dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90316

--- Comment #10 from Than McIntosh <thanm at google dot com> ---
Update: it looks like we are not out of the woods quite yet -- I am seeing some
similar behavior farther into the build. I will try to produce another reduced
test case (this one is proving more difficult replicate).