* config/i386/i386.c (ix86_scalar_mode_supported_p): Don't return
unconditional true for decimal float modes.
* config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): Ditto.
* config/s390/s390.c (s390_scalar_mode_supported_p): Ditto.
* lib/target-supports.exp (check_effective_target_dfp_nocache):
Check support via mode instead of C type.
(check_effective_target_dfprt_nocache): Ditto.
(check_effective_target_hard_dfp): Ditto.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@152030 138bc75d-0d04-0410-961f-82ee72b054a4