re PR middle-end/40154 (internal compiler error: in do_SUBST, at combine.c:681)

re PR middle-end/40154 (internal compiler error: in do_SUBST, at combine.c:681)

        PR middle-end/40154
        * emit-rtl.c (set_dst_reg_note): New function.
        * rtl.h (set_dst_reg_note): Declare.
        * optabs.c (expand_binop, expand_absneg_bit): Use set_dst_reg_note.
        (emit_libcall_block, expand_fix): Likewise.
        * function.c (assign_parm_setup_reg, expand_function_start): Likewise.
        * expmed.c (expand_mult_const, expand_divmod): Likewise.
        * reload1.c (gen_reload): Likewise.

From-SVN: r182162