[Bug middle-end/125894] RFE: Fill unreachable function alignment padding with poison

[hpa at zytor dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125894

--- Comment #5 from H. Peter Anvin <hpa at zytor dot com> ---
It's not that I'm claiming that this is somehow a massive security improvement.
It should simply be a cheap way to make a small improvement without any penalty
for the target code itself.