[Bug tree-optimization/102650] [12 Regression] Dead Code Elimination Regression at -O3 (trunk vs 11.2.0)

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102650

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
If it is undefined it should be unreachable, not switch to a random static
branch ;)  (defeating uninit diagnostics, of course)