[Bug rtl-optimization/106568] -freorder-blocks-algorithm appears to causes a crash in stable code, no way to disable it

[noloader at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106568

--- Comment #15 from Jeffrey Walton <noloader at gmail dot com> ---
It looks like -fno-strict-aliasing cleared the crash. This is bad because I
thought we did not violate aliasing rules.

Let me try to find it.