+ if(addr->base == NULL)
+ addr->base = noreg_gp;
+ if(addr->index == NULL)
+ addr->index = noreg_gp;
+ if(addr->mem == NULL)
+ addr->mem = new_NoMem();
+
+ dbgi = get_irn_dbg_info(node);
+ block = be_transform_node(src_block);
+ if(get_mode_size_bits(mode) == 8) {
+ new_node = func8bit(dbgi, irg, block, addr->base, addr->index,
+ addr->mem, new_op);
+ } else {
+ new_node = func(dbgi, irg, block, addr->base, addr->index, addr->mem,
+ new_op);
+ }
+ set_address(new_node, addr);
+ set_ia32_op_type(new_node, ia32_AddrModeD);
+ set_ia32_ls_mode(new_node, mode);
+ SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
+
+ return new_node;
+}
+
+static ir_node *dest_am_unop(ir_node *node, ir_node *op, ir_node *mem,
+ ir_node *ptr, ir_mode *mode,
+ construct_unop_dest_func *func)
+{
+ ir_node *src_block = get_nodes_block(node);
+ ir_node *block;
+ ir_node *noreg_gp = ia32_new_NoReg_gp(env_cg);
+ ir_graph *irg = current_ir_graph;
+ dbg_info *dbgi;
+ ir_node *new_node;
+ ia32_address_mode_t am;
+ ia32_address_t *addr = &am.addr;
+ memset(&am, 0, sizeof(am));
+
+ if(!use_dest_am(src_block, op, mem, ptr, mode, NULL))
+ return NULL;
+
+ build_address(&am, op);
+
+ if(addr->base == NULL)
+ addr->base = noreg_gp;
+ if(addr->index == NULL)
+ addr->index = noreg_gp;
+ if(addr->mem == NULL)
+ addr->mem = new_NoMem();
+
+ dbgi = get_irn_dbg_info(node);
+ block = be_transform_node(src_block);
+ new_node = func(dbgi, irg, block, addr->base, addr->index, addr->mem);
+ set_address(new_node, addr);
+ set_ia32_op_type(new_node, ia32_AddrModeD);
+ set_ia32_ls_mode(new_node, mode);
+ SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
+
+ return new_node;
+}
+
+static ir_node *try_create_dest_am(ir_node *node) {
+ ir_node *val = get_Store_value(node);
+ ir_node *mem = get_Store_mem(node);
+ ir_node *ptr = get_Store_ptr(node);
+ ir_mode *mode = get_irn_mode(val);
+ ir_node *op1;
+ ir_node *op2;
+ ir_node *new_node;
+
+ /* handle only GP modes for now... */
+ if(!mode_needs_gp_reg(mode))
+ return NULL;
+
+ /* store must be the only user of the val node */
+ if(get_irn_n_edges(val) > 1)
+ return NULL;
+
+ switch(get_irn_opcode(val)) {
+ case iro_Add:
+ op1 = get_Add_left(val);
+ op2 = get_Add_right(val);
+ if(is_Const_1(op2)) {
+ new_node = dest_am_unop(val, op1, mem, ptr, mode,
+ new_rd_ia32_IncMem);
+ break;
+ } else if(is_Const_Minus_1(op2)) {
+ new_node = dest_am_unop(val, op1, mem, ptr, mode,
+ new_rd_ia32_DecMem);
+ break;
+ }
+ new_node = dest_am_binop(val, op1, op2, mem, ptr, mode,
+ new_rd_ia32_AddMem, new_rd_ia32_AddMem8Bit, 1);
+ break;
+ case iro_Sub:
+ op1 = get_Sub_left(val);
+ op2 = get_Sub_right(val);
+ if(is_Const(op2)) {
+ ir_fprintf(stderr, "Optimisation warning: not-normalize sub ,C"
+ "found\n");
+ }
+ new_node = dest_am_binop(val, op1, op2, mem, ptr, mode,
+ new_rd_ia32_SubMem, new_rd_ia32_SubMem8Bit, 0);
+ break;
+ case iro_And:
+ op1 = get_And_left(val);
+ op2 = get_And_right(val);
+ new_node = dest_am_binop(val, op1, op2, mem, ptr, mode,
+ new_rd_ia32_AndMem, new_rd_ia32_AndMem8Bit, 1);
+ break;
+ case iro_Or:
+ op1 = get_Or_left(val);
+ op2 = get_Or_right(val);
+ new_node = dest_am_binop(val, op1, op2, mem, ptr, mode,
+ new_rd_ia32_OrMem, new_rd_ia32_OrMem8Bit, 1);
+ break;
+ case iro_Eor:
+ op1 = get_Eor_left(val);
+ op2 = get_Eor_right(val);
+ new_node = dest_am_binop(val, op1, op2, mem, ptr, mode,
+ new_rd_ia32_XorMem, new_rd_ia32_XorMem8Bit, 1);
+ break;
+ case iro_Shl:
+ op1 = get_Shl_left(val);
+ op2 = get_Shl_right(val);
+ new_node = dest_am_binop(val, op1, op2, mem, ptr, mode,
+ new_rd_ia32_ShlMem, new_rd_ia32_ShlMem, 0);
+ break;
+ case iro_Shr:
+ op1 = get_Shr_left(val);
+ op2 = get_Shr_right(val);
+ new_node = dest_am_binop(val, op1, op2, mem, ptr, mode,
+ new_rd_ia32_ShrMem, new_rd_ia32_ShrMem, 0);
+ break;
+ case iro_Shrs:
+ op1 = get_Shrs_left(val);
+ op2 = get_Shrs_right(val);
+ new_node = dest_am_binop(val, op1, op2, mem, ptr, mode,
+ new_rd_ia32_SarMem, new_rd_ia32_SarMem, 0);
+ break;
+ case iro_Rot:
+ op1 = get_Rot_left(val);
+ op2 = get_Rot_right(val);
+ new_node = dest_am_binop(val, op1, op2, mem, ptr, mode,
+ new_rd_ia32_RolMem, new_rd_ia32_RolMem, 0);
+ break;
+ /* TODO: match ROR patterns... */
+ case iro_Minus:
+ op1 = get_Minus_op(val);
+ new_node = dest_am_unop(val, op1, mem, ptr, mode, new_rd_ia32_NegMem);
+ break;
+ case iro_Not:
+ /* should be lowered already */
+ assert(mode != mode_b);
+ op1 = get_Not_op(val);
+ new_node = dest_am_unop(val, op1, mem, ptr, mode, new_rd_ia32_NotMem);
+ break;
+ default:
+ return NULL;
+ }
+
+ return new_node;
+}