* config/mips/mips.c (mips_legitimize_move): Generate special patterns
	for mflo and mfhi instructions.
	(mips_output_move): Remove mflo and mfhi handling.
	* config/mips/mips.md (UNSPEC_MFHILO): New unspec.
	(*mulsidi3_64bit): Update for new mfhi/mflo representation.
	Likewise various define_peephole2s.
	(*movdi_32bit, *movdi_64bit, *movsi_internal): Merge x<-J and x<-d
	alternatives.
	(*movdi_64bit, *movdi_64bit_mips16, *mov[shq]i_internal)
	(*mov[shq]i_mips16): Remove mflo and mfhi alternatives.
	(mfhilo_di, mfhilo_si): New patterns.

From-SVN: r80883