[Bug tree-optimization/91597] [9/10 Regression] GCC miscompiles a branch depending on a pointer tag

[wjnawrocki at protonmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91597

--- Comment #3 from Wojciech Nawrocki <wjnawrocki at protonmail dot com> ---
Workaround: -fdisable-tree-ifcombine turns off the broken optimization pass