[Bug middle-end/26374] Compile failure on long double

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=26374

--- Comment #18 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Note, for the time being only little endian powerpc64 can switch (I think only
power9 and later have hw support for IEEE quad and in the ABI it is passed in
Altivec/VSX registers.  ppc64le only supports power8 and later CPUs.