[Bug c/106119] Bogus use-after-free warning triggered by optimizer

[tom.cosgrove at arm dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106119

--- Comment #1 from Tom Cosgrove <tom.cosgrove at arm dot com> ---
Note that the command lines just need -Wall, i.e.

gcc-12 $ gcc -O2 -Wall -o foo -c foo.c