* config/mips/mips-protos.h (mips_gp_save_slot): Remove.
	(mips_restore_gp): Declare.
	* config/mips/mips.c (mips_add_offset): Add a scratch register
	argument.  Reimplement in rtl only, reusing MIPS16 logic from
	mips_output_mi_thunk.
	(mips_legitimize_address, mips_legitimize_const_move): Adjust calls
	to mips_add_offset.
	(mips_gp_save_slot): Delete.
	(mips_restore_gp): New function.
	(mips_set_return_address, mips_output_mi_thunk): Use mips_add_offset.
	* config/mips/mips.md (exception_receiver): Turn into a
	define_insn_and_split.  Use mips_restore_gp to do the split.
	(call_internal, call_value_internal, call_value_multiple_internal): Use
	mips_restore_gp to restore $gp.

From-SVN: r85404