[Bug ipa/104203] [12 Regressions] huge IPA compile-time regression

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104203

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC 11 takes ~10s to compile this at -O0 while trunk takes ~60s for me.