tree-ssa.c (execute_update_address_taken): Handle TARGET_MEM_REF when processing for not_regs_needed bitmap.

        * tree-ssa.c (execute_update_address_taken): Handle TARGET_MEM_REF
        when processing for not_regs_needed bitmap.
        * gimple.c (walk_stmt_load_store_addr_ops): When visiting address,
        handle TARGET_MEM_REF in lhs.  Check TMR_BASE for NULL while
        handling it for rhs.

From-SVN: r147179