From: Michael Beck Date: Tue, 20 Jul 2004 09:20:59 +0000 (+0000) Subject: added prototypes from irgwalk_blk.c X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=2aeb3c31792527de90cb13b4c99ce8ece09ac519;p=libfirm added prototypes from irgwalk_blk.c [r3517] --- diff --git a/ir/ir/irgwalk.h b/ir/ir/irgwalk.h index a40dcd8aa..ccd9bc14b 100644 --- a/ir/ir/irgwalk.h +++ b/ir/ir/irgwalk.h @@ -60,7 +60,7 @@ void finish_ip_walk(void); * flag. Therefore current_ir_graph must be set before calling the walker. * It marks the node as visited before executing pre. * The void* env can be used to pass status information between the - * pre and post functions. Does not use the link field. + * pre and post functions. Does not use the link fields. * * @param node - the start node * @param pre - walker function, executed before the predecessor of a node are visited @@ -151,4 +151,40 @@ void irg_block_walk_graph(ir_graph *irg, irg_walk_func *pre, irg_walk_func *post */ void walk_const_code(irg_walk_func *pre, irg_walk_func *post, void *env); +/** + * Walks over reachable nodes in block-wise order, i.e. visit all nodes in a block + * before going to another block, starting at the node given as first argument. + * Executes pre before visiting the predecessor of a node, post after. + * irg_walk_blkwise() uses the visited flag in irg and the nodes to determine visited + * nodes. It executes inc_irg_visited(current_ir_graph) to generate a new + * flag. Therefore current_ir_graph must be set before calling the walker. + * It marks the node as visited before executing pre. + * The void *env can be used to pass status information between the + * pre and post functions. Does not use the link fields. + * Do NOT leave the graph in interprocedural view. + * + * @param pre - walker function, executed before the predecessor of a node are visited + * @param post - walker function, executed after the predecessor of a node are visited + * @param env - environment, passend to pre and post + * + * This function works like irg_walk, except that it enters and leaves blocks only once. + * So, the post walker see a 'valid schedule' of the code, the pre-walker a 'reversed schedule' + */ +void irg_walk_blkwise(ir_node *node, irg_walk_func *pre, irg_walk_func *post, void *env); + +/** + * Walks over all reachable nodes in the ir graph in block-wise order. + * + * @param irg - the irg graph + * @param pre - walker function, executed before the predecessor of a node are visited + * @param post - walker function, executed after the predecessor of a node are visited + * @param env - environment, passend to pre and post + * + * Like irg_walk_blkwise(), but walks over all reachable nodes in the ir + * graph, starting at the end operation. During the walk current_ir_graph + * is set to irg. Does not use the link fields. + * Do NOT leave the graph in interprocedural view. + */ +void irg_walk_blkwise_graph(ir_graph *irg, irg_walk_func *pre, irg_walk_func *post, void *env); + # endif /* _IRGWALK_H_ */