* function.c (ARG_POINTER_CFA_OFFSET): Move ...
        * defaults.h (ARG_POINTER_CFA_OFFSET): ... here.
        (INCOMING_FRAME_SP_OFFSET): Move from dwarf2out.c.
        * dwarf2out.c (struct cfa_loc): Change reg to unsigned int,
        rearrange for better packing.
        (INCOMING_FRAME_SP_OFFSET): Move to defaults.h.
        (lookup_cfa_1): Remove inline marker.
        (cfa_equal_p): Split out of ...
        (def_cfa_1): ... here.  Use INVALID_REGNUM.
        (build_cfa_loc): Handle !cfa->indirect.
        (frame_pointer_cfa_offset): New.
        (dbx_reg_number): Assert register elimination performed; do
        leaf register remapping.
        (reg_loc_descriptor): Avoid calling dbx_reg_number when unused.
        (eliminate_reg_to_offset): New.
        (based_loc_descr): Remove can_use_fbreg argument.  Use fbreg only
        for verifiably local stack frame addresses; re-base to CFA.
        (mem_loc_descriptor): Remove can_use_fbreg argument.
        (concat_loc_descriptor, loc_descriptor): Likewise.
        (containing_function_has_frame_base): Remove.
        (rtl_for_decl_location): Don't do register elimination or
        leaf register remapping here.
        (secname_for_decl): Split out from ..
        (add_location_or_const_value_attribute): ... here.
        (convert_cfa_to_loc_list): New.
        (compute_frame_pointer_to_cfa_displacement): New.
        (gen_subprogram_die): Use them.
        * tree.h (frame_base_decl): Remove.
        * var-tracking.c (frame_base_decl, frame_stack_adjust): Remove.
        (prologue_stack_adjust): Remove.
        (vt_stack_adjustments): Use INCOMING_FRAME_SP_OFFSET.
        (adjust_stack_reference): Re-base memories to arg_pointer_rtx.
        (set_frame_base_location): Remove.
        (compute_bb_dataflow, emit_notes_in_bb): Don't call it.
        (dump_attrs_list, dump_dataflow_set): Use string concatenation.
        (vt_add_function_parameters): Don't eliminate_regs.
        (vt_initialize): Don't create frame_base_decl.

From-SVN: r103983