[Bug d/109221] std.math.floor, core.math.ldexp, std.math.poly poor inlining

[witold.baryluk+gcc at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109221

--- Comment #2 from Witold Baryluk <witold.baryluk+gcc at gmail dot com> ---
Interesting enough, GDC 10.2 does inline `poly` instantiation with all the
constants.