* config/i386/i386.h (TARGET_SUPPORTS_WIDE_INT): New define.
	* config/i386/i386.c (ix86_legitimate_constant_p): Handle TImode
	as CONST_WIDE_INT, not CONST_DOUBLE.
	(ix86_cannot_force_const_mem): Handle CONST_WIDE_INT.
	(output_pic_addr_const): Do not handle VOIDmode CONST_DOUBLEs.
	(ix86_find_base_term): Do not check for CONST_DOUBLE.
	(ix86_print_operand): Do not handle non-FPmode CONST_DOUBLEs.
	(ix86_build_signbit_mask): Rewrite using wide ints.
	(ix86_split_to_parts) [HOST_BITS_PER_WIDE_INT < 64]: Remove.
	(ix86_rtx_costs): Handle CONST_WIDE_INT.
	(find_constant): Ditto.
	* config/i386/i386.md (bts, btr, btc peepholes): Rewrite
	using gen_int_mode.
	* config/i386/predicates.md (x86_64_immediate_operand)
	<case CONST_INT>: Remove HOST_BITS_PER_WIDE_INT == 32 code.
	(x86_64_zext_immediate_operand): Remove CONST_DOUBLE handling.
	<case CONST_INT>: Remove HOST_BITS_PER_WIDE_INT == 32 code.
	(const0_operand): Also match const_wide_int.
	(constm1_operand): Ditto.
	(const1_operand): Ditto.

From-SVN: r222767