From df62c1c110e8532b995b23540b7e3695729c0779 Mon Sep 17 00:00:00 2001 From: Jing Yu Date: Thu, 5 Nov 2009 15:11:04 -0800 Subject: Check in gcc sources for prebuilt toolchains in Eclair. --- gcc-4.3.1/gcc/tree-iterator.h | 122 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 122 insertions(+) create mode 100644 gcc-4.3.1/gcc/tree-iterator.h (limited to 'gcc-4.3.1/gcc/tree-iterator.h') diff --git a/gcc-4.3.1/gcc/tree-iterator.h b/gcc-4.3.1/gcc/tree-iterator.h new file mode 100644 index 000000000..98f0cf80c --- /dev/null +++ b/gcc-4.3.1/gcc/tree-iterator.h @@ -0,0 +1,122 @@ +/* Iterator routines for manipulating GENERIC and GIMPLE tree statements. + Copyright (C) 2003, 2004, 2007 Free Software Foundation, Inc. + Contributed by Andrew MacLeod + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 3, or (at your option) +any later version. + +GCC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING3. If not see +. */ + + +/* This file is dependent upon the implementation of tree's. It provides an + abstract interface to the tree objects such that if all tree creation and + manipulations are done through this interface, we can easily change the + implementation of tree's, and not impact other code. */ + +#ifndef GCC_TREE_ITERATOR_H +#define GCC_TREE_ITERATOR_H 1 + +/* Iterator object for GENERIC or GIMPLE TREE statements. */ + +typedef struct { + struct tree_statement_list_node *ptr; + tree container; +} tree_stmt_iterator; + +static inline tree_stmt_iterator +tsi_start (tree t) +{ + tree_stmt_iterator i; + + i.ptr = STATEMENT_LIST_HEAD (t); + i.container = t; + + return i; +} + +static inline tree_stmt_iterator +tsi_last (tree t) +{ + tree_stmt_iterator i; + + i.ptr = STATEMENT_LIST_TAIL (t); + i.container = t; + + return i; +} + +static inline bool +tsi_end_p (tree_stmt_iterator i) +{ + return i.ptr == NULL; +} + +static inline bool +tsi_one_before_end_p (tree_stmt_iterator i) +{ + return i.ptr != NULL && i.ptr->next == NULL; +} + +static inline void +tsi_next (tree_stmt_iterator *i) +{ + i->ptr = i->ptr->next; +} + +static inline void +tsi_prev (tree_stmt_iterator *i) +{ + i->ptr = i->ptr->prev; +} + +static inline tree * +tsi_stmt_ptr (tree_stmt_iterator i) +{ + return &i.ptr->stmt; +} + +static inline tree +tsi_stmt (tree_stmt_iterator i) +{ + return i.ptr->stmt; +} + +enum tsi_iterator_update +{ + TSI_NEW_STMT, /* Only valid when single statement is added, move + iterator to it. */ + TSI_SAME_STMT, /* Leave the iterator at the same statement. */ + TSI_CHAIN_START, /* Only valid when chain of statements is added, move + iterator to the first statement in the chain. */ + TSI_CHAIN_END, /* Only valid when chain of statements is added, move + iterator to the last statement in the chain. */ + TSI_CONTINUE_LINKING /* Move iterator to whatever position is suitable for + linking other statements/chains of statements in + the same direction. */ +}; + +extern void tsi_link_before (tree_stmt_iterator *, tree, + enum tsi_iterator_update); +extern void tsi_link_after (tree_stmt_iterator *, tree, + enum tsi_iterator_update); + +void tsi_delink (tree_stmt_iterator *); + +tree tsi_split_statement_list_after (const tree_stmt_iterator *); +tree tsi_split_statement_list_before (tree_stmt_iterator *); + +void append_to_statement_list (tree, tree *); +void append_to_statement_list_force (tree, tree *); + +#endif /* GCC_TREE_ITERATOR_H */ -- cgit v1.2.3