[Bug c/119408] LoongArch: Q Suffix for __float128 Literals Not Supported

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119408

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Q is an extension, 1.11111f128 should work.  The extension is enabled only for
some platforms.