pa.c (legitimize_pic_address): Use gcc_assert and gcc_unreachable as appropriate.

pa.c (legitimize_pic_address): Use gcc_assert and gcc_unreachable as appropriate.

	* config/pa/pa.c (legitimize_pic_address): Use gcc_assert and
	gcc_unreachable as appropriate.
	(force_mode, emit_move_sequence, singlemove_string,
	output_move_double, output_fp_move_double, find_addr_reg,
	output_block_move, output_block_clear, output_and,
	output_64bit_and, output_ior, output_64bit_ior, store_reg_modify,
	pa_adjust_cost, pa_issue_rate, print_operand,
	output_global_address, output_arg_descriptor, output_cbranch,
	output_lbranch, output_bb, output_bvb, output_dbra, output_movb,
	output_call): Likewise.
	* config/pa/pa.md (call, call_value, sibcall, sibcall_value,
	prefetch, prefetch_cc, prefetch_nocc): Likewise.

From-SVN: r98559