[Bug sanitizer/110553] -fsanitize=undefined needs -latomic on powerpc-unknown-linux-gnu

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110553

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I wonder what function uses 64bit values for atomics in ubsan. I only saw 32bit
values (well I saw pointers and size_t in backtrace and 32bit in ubsan).