[Bug c++/105646] g++ does not raise xxx is used uninitialized warning under some conditions

[cfy1990 at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105646

--- Comment #1 from cfy1990 at gmail dot com ---
When compile without -O2, g++ will generate "'v3' may be used uninitialized"
warning.
code link: https://godbolt.org/z/r3sY4srx9