* 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
