curr_sp = new_r_Proj(push, mode_gp, pn_ia32_Push_stack);
mem = new_r_Proj(push, mode_M, pn_ia32_Push_M);
arch_set_irn_register(curr_sp, sp);
curr_sp = new_r_Proj(push, mode_gp, pn_ia32_Push_stack);
mem = new_r_Proj(push, mode_M, pn_ia32_Push_M);
arch_set_irn_register(curr_sp, sp);