[Bug target/55298] [SH] Add support to disable FPU usage for individual functions

[olegendo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55298

--- Comment #2 from Oleg Endo <olegendo at gcc dot gnu.org> ---
Something similar has been done for ARM:
https://gcc.gnu.org/ml/gcc-patches/2015-09/msg00939.html