2000-03-26 Mark Kettenis <kettenis@gnu.org>

2000-03-26  Mark Kettenis  <kettenis@gnu.org>

	Provide `long double' support for most i386 targets.
	* config/i386/tm-i386.h (TARGET_LONG_DOUBLE_FORMAT): Define as
	&floatformat_i387_ext.
	(TARGET_LONG_DOUBLE_BITS): Define as 96.
	(REGISTER_VIRTUAL_TYPE): Change type for FPU registers to
	`builtin_type_long_double'.
	(REGISTER_CONVERT_TO_VIRTUAL): Call
	i386_register_convert_to_virtual.
	(REGISTER_CONVERT_TO_RAW): Call i386_register_convert_to_raw.
	(i387_to_double, double_to_i387): Remove prototypes.
	(i386_extract_return_value): Change prototype to match definition
	in i386-tdep.c.
	* config/i386/tm-i386mk.h (TARGET_LONG_DOUBLE_FORMAT): #undef.
	(TARGET_LONG_DOUBLE_BITS): #undef.
	* config/i386/tm-linux.h (TARGET_LONG_DOUBLE_BIT): Remove.
	[HAVE_LONG_DOUBLE && HOST_I386] (LD_I387): Remove.
	(i387_extract_floating, i387_store_floating): Remove prototypes.
	(TARGET_EXTRACT_FLOATING, TARGET_STORE_FLOATING): Remove.
	(REGISTER_CONVERT_TO_VIRTUAL, REGOISTER_CONVERT_TO_RAW): Remove.
	(REGISTER_VIRTUAL_TYPE): Remove.
	* i386-tdep.c (i386_register_convert_to_virtual): New function.
	(i386_register_convert_to_raw): New function.
	* i387-tdep.c [LD_I387] (i387_extract_floating): Remove.
	(i387_store_floating): Remove.