irn = new_rd_Alloc(dbg, current_ir_graph, block, mem, op, firm_unknown_type, stack_alloc);
mem = new_Proj(irn, mode_M, pn_Alloc_M);
irn = new_rd_Alloc(dbg, current_ir_graph, block, mem, op, firm_unknown_type, stack_alloc);
mem = new_Proj(irn, mode_M, pn_Alloc_M);