mips.c (mips_frame_info): Add arg_pointer_offset and hard_frame_pointer_offset.

mips.c (mips_frame_info): Add arg_pointer_offset and hard_frame_pointer_offset.

gcc/
	* config/mips/mips.c (mips_frame_info): Add arg_pointer_offset
	and hard_frame_pointer_offset.
	(mips_debugger_offset): Use hard_frame_pointer_offset.
	(mips16e_collect_argument_save_p): Likewise.
	(compute_frame_size): Initialize arg_pointer_offset and
	hard_frame_pointer_offset.
	(mips_initial_elimination_offset): Use them.
	(mips_output_function_prologue): Use hard_frame_pointer_offset.
	(mips_expand_prologue, mips_expand_epilogue): Likewise.

From-SVN: r129458