[Bug tree-optimization/111003] [16 Regression] Dead Code Elimination Regression at -O3 since r16-4603 (and previously r14-2161)

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111003

--- Comment #12 from Richard Biener <rguenth at gcc dot gnu.org> ---
In .optimized we could see that if (m) invokes UB as it is never set, but
consciously eliminating the call seems difficult.