[Bug tree-optimization/102943] [12 Regression] Jump threader compile-time hog with 521.wrf_r

[amacleod at redhat dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102943

--- Comment #49 from Andrew Macleod <amacleod at redhat dot com> ---
Let me clean it up a little and I'll post it.