[Bug target/104581] [12 Regression] Huge compile-time regression building SPEC 2017 538.imagick_r with PGO

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104581

--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #5)
> Therefore regressed with r12-7125-g5390a2f191682dae3c6d1e1deac20e05be413514

The insn walk was there before btw (the first jump in the LNT graph).  This
just made it even worse.  The walk was introduced with
r12-2571-g9775e465c1fbfc32656de77c618c61acf5bd905d