* config/rs6000/predicates.md (easy_fp_constant): Discount decimal
float modes.
* config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
(TARGET_SCALAR_MODE_SUPPORTED_P): Define.
(USE_FP_FOR_ARG): Reject decimal float modes.
(function_arg_advance): Likewise.
(output_toc): Handle emitting TDmode, DDmode and SDmode constants.
(rs6000_handle_altivec_attribute): Do not permit decimal floating
point types in AltiVec vectors.
(rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
(rs6000_libcall_value): Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@109533
138bc75d-0d04-0410-961f-
82ee72b054a4