+/**
+ * Transform a be_AddSP into an ia32_AddSP. Eat up const sizes.
+ */
+static ir_node *gen_be_AddSP(ia32_transform_env_t *env) {
+ ir_node *new_op;
+ const ir_edge_t *edge;
+ ir_node *sz = get_irn_n(env->irn, be_pos_AddSP_size);
+ ir_node *sp = get_irn_n(env->irn, be_pos_AddSP_old_sp);
+
+ new_op = new_rd_ia32_AddSP(env->dbg, env->irg, env->block, sp, sz);
+
+ if (is_ia32_Const(sz)) {
+ set_ia32_Immop_attr(new_op, sz);
+ set_irn_n(new_op, 1, ia32_new_NoReg_gp(env->cg));
+ }
+ else if (is_ia32_Load(sz) && get_ia32_am_flavour(sz) == ia32_O) {
+ set_ia32_immop_type(new_op, ia32_ImmSymConst);
+ set_ia32_op_type(new_op, ia32_AddrModeS);
+ set_ia32_am_sc(new_op, get_ia32_am_sc(sz));
+ add_ia32_am_offs(new_op, get_ia32_am_offs(sz));
+ set_irn_n(new_op, 1, ia32_new_NoReg_gp(env->cg));
+ }
+
+ /* fix proj nums */
+ foreach_out_edge(env->irn, edge) {
+ ir_node *proj = get_edge_src_irn(edge);
+
+ assert(is_Proj(proj));
+
+ if (get_Proj_proj(proj) == pn_be_AddSP_res) {
+ /* the node is not yet exchanged: we need to set the register manually */
+ ia32_attr_t *attr = get_ia32_attr(new_op);
+ attr->slots[pn_ia32_AddSP_stack] = &ia32_gp_regs[REG_ESP];
+ set_Proj_proj(proj, pn_ia32_AddSP_stack);
+ }
+ else if (get_Proj_proj(proj) == pn_be_AddSP_M) {
+ set_Proj_proj(proj, pn_ia32_AddSP_M);
+ }
+ else {
+ assert(0);
+ }
+ }
+
+ SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env->cg, env->irn));
+
+ return new_op;
+}