[Bug d/106832] Missing powerpc64le-linux support for D

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106832

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
BTW, for the case where -mabi=ieeelongdouble is the default unless there is
some power* specific configuration in the library that needs to be done perhaps
changing configure.tgt is all we need, but for the case where long double is
IBM extended and only _Float128/__float128 is IEEE quad perhaps some compiler
changes are needed too.  I see stuff like:

  ireal_type_node = build_distinct_type_copy (long_double_type_node);
  TYPE_IMAGINARY_FLOAT (ireal_type_node) = 1;

  else if (TYPE_MAIN_VARIANT (basetype) == long_double_type_node
           || TYPE_MAIN_VARIANT (basetype) == ireal_type_node)
    fmodfn = builtin_decl_explicit (BUILT_IN_FMODL);

etc. (e.g. grep for long_double_type_node or BUILT_IN_[A-Z0-9_]*L etc.) in the
backend.