[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 #18 from Than McIntosh <thanm at google dot com> ---

I tested the most recent commit (270944). That cuts the compile time on the
larger example in half, but still at around 1200 seconds. I took another
profile (will attach an SVG image from 'pprof web').