[Bug c/110292] undefined value due to strict aliasing without warning

[yann at droneaud dot fr via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110292

Yann Droneaud <yann at droneaud dot fr> changed:

           What    |Removed                     |Added
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                 CC|                            |yann at droneaud dot fr

--- Comment #1 from Yann Droneaud <yann at droneaud dot fr> ---
And it should be noted that using -fsanitize=undefined is making the issue
vanish as 0 is written into j location on the stack ...