contrib/gcc/tree-tailcall.c

377   tree ass_var, ret_var, stmt, func, param, args, call = NULL_TREE;
503   ret_var = TREE_OPERAND (stmt, 0);
504   if (ret_var
505       && TREE_CODE (ret_var) == MODIFY_EXPR)
507       tree ret_op = TREE_OPERAND (ret_var, 1);
513       if (!process_assignment (ret_var, stmt, bsi, &m, &a, &ass_var))
515       ret_var = TREE_OPERAND (ret_var, 0);
520   if (ret_var
521       && (ret_var != ass_var))
618   tree ret_stmt = last_stmt (bb), ret_var, var, stmt, tmp;
624   ret_var = TREE_OPERAND (ret_stmt, 0);
625   if (!ret_var)
628   if (TREE_CODE (ret_var) == MODIFY_EXPR)
630       ret_var->common.ann = (tree_ann_t) stmt_ann (ret_stmt);
631       bsi_replace (&bsi, ret_var, true);
632       SSA_NAME_DEF_STMT (TREE_OPERAND (ret_var, 0)) = ret_var;
633       ret_var = TREE_OPERAND (ret_var, 0);
634       ret_stmt = build1 (RETURN_EXPR, TREE_TYPE (ret_stmt), ret_var);
641 		     build2 (MULT_EXPR, ret_type, m_acc, ret_var));
651     var = ret_var;