* rtl.h (REG_VTABLE_REF): New.
        * rtl.c (reg_note_name): Add it.
        * combine.c (distribute_notes): Handle it.
        * final.c (final_scan_insn): Handle it.
        * tree.def (VTABLE_REF): New.
        * expr.c (expand_expr): Handle it.
        * varasm.c (assemble_vtable_entry, assemble_vtable_inherit): New.
        * output.h: Declare them.
cp/
        * class.c (build_vtable_entry_ref): Create a VTABLE_REF instead
        of an asm statement.
        (build_vtbl_ref_1): Split out from build_vtbl_ref.
        (build_vfn_ref): Use it to handle vtable descriptors before
        calling build_vtable_entry_ref.
        * decl2.c (output_vtable_inherit): Use assemble_vtable_inherit.
testsuite/
        * g++.old-deja/g++.other/crash18.C: Add -S to options.

From-SVN: r46195