* config/alpha/alpha.h (MASK_LONG_DOUBLE_128): New.
(TARGET_LONG_DOUBLE_128): New.
(TARGET_SWITCHES): Add long-double-{128,64}.
(TARGET_HAS_XFLOATING_LIBS): Default to TARGET_LONG_DOUBLE_128.
(LONG_DOUBLE_TYPE_SIZE): Honor TARGET_LONG_DOUBLE_128.
(LIBGCC2_LONG_DOUBLE_TYPE_SIZE): New.
(WIDEST_HARDWARE_FP_SIZE): New.
(TARGET_CPU_CPP_BUILTINS): Define __LONG_DOUBLE_128__.
* config/alpha/alpha.c (override_options): Clear MASK_LONG_DOUBLE_128
if TARGET_VAX_FLOAT.
* config/alpha/osf5.h (LONG_DOUBLE_TYPE_SIZE): Remove.
(TARGET_DEFAULT): Set MASK_LONG_DOUBLE_128.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@79026
138bc75d-0d04-0410-961f-
82ee72b054a4