mips.c (mips_reg_names): Change hilo entry to "".

mips.c (mips_reg_names): Change hilo entry to "".

	* config/mips/mips.c (mips_reg_names): Change hilo entry to "".
	(mips_sw_reg_names): Likewise.
	(mips_regno_to_class): Change hilo entry to NO_REGS.
	(hilo_operand): Use MD_REG_P.
	(extend_operator): New predicate.
	(override_options): Remove 'a' constraint.
	(mips_secondary_reload_class): Remove hilo handling.  Also remove
	handling of (plus sp reg) reloads for mips16.
	(mips_register_move_cost): Remove hilo handling.
	* config/mips/mips.h (FIXED_REGISTERS): Make hilo entry fixed.
	(MD_REG_LAST): Remove hilo from range.
	(HILO_REGNUM): Delete.
	(reg_class): Remove HILO_REG and HILO_AND_GR_REGS.
	(REG_CLASS_NAMES, REG_CLASS_CONTENTS): Update accordingly.
	(PREDICATE_CODES): Add entry for extend_operator.
	(DEBUG_REGISTER_NAMES): Change hilo entry to "".
	* config/mips/mips.md: Remove hilo clobbers wherever they occur.
	Remove constraints from multiplication define_expands.  Remove
	clobbers from "decorative" define_expand patterns.
	(UNSPEC_HILO_DELAY): Delete.
	(*mul_acc_si, *mul_sub_si): Add early-clobber to operand 6.
	(mulsidi3, umulsidi3): Change pattern to match the TARGET_64BIT case.
	Adjust C code to just emit insns for !TARGET_64BIT.
	(mulsidi3_internal): Rename to mulsidi3_32bit.
	(mulsidi3_64bit): Use a "d" constraint for the destination.
	Use extend_operator so that the pattern can handle umulsidi3 as well.
	Split the instruction after reload.
	(*mulsidi3_64bit_parts): New pattern, generated by mulsidi3_64bit.
	(umulsidi3_internal): Rename to umulsidi3_32bit.
	(umulsidi3_64bit): Remove.
	(*smsac_di, *umsac_di): Line-wrap fixes.
	(udivsi3_internal): Don't allow operand 2 to be constant.
	(udivdi3_internal, umodsi3_internal, umoddi3_internal): Likewise.
	(movdi_internal2, movsi_internal): Remove hilo alternatives.
	(reload_in[sd]i, reload_out[sd]i, hilo_delay): Remove.

From-SVN: r67654