[Bug rtl-optimization/78561] Constant pool size (offset) can become stale where constant pool entires become unused

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78561

--- Comment #8 from Segher Boessenkool <segher at gcc dot gnu.org> ---
I usually use --disable-libgomp, but otherwise everything default (well,
--enable-languages=all,ada,go,obj-c++).