[Bug tree-optimization/103720] bogus warning from -Wuninitialized + -ftrivial-auto-var-init + O2

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103720

--- Comment #3 from qinzhao at gcc dot gnu.org ---
this is fixed with the following commit in gcc12.
https://gcc.gnu.org/pipermail/gcc-cvs/2022-January/359118.html