X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Firgwalk.h;h=5173e4b9aa54706c8a7001083a06b618a1dd3018;hb=23ea16875f38dc0c067cce24f64b5c70f3acc496;hp=29ac04c1e17b73d1e30eafb7304368383af8b488;hpb=15b39101aec9783efc9144525fddf35c6752b99e;p=libfirm diff --git a/ir/ir/irgwalk.h b/ir/ir/irgwalk.h index 29ac04c1e..5173e4b9a 100644 --- a/ir/ir/irgwalk.h +++ b/ir/ir/irgwalk.h @@ -25,12 +25,10 @@ * Uses current_ir_graph (from irgraph.h)!!! Set it to the proper * graph before starting the walker. */ +#ifndef _FIRM_IR_IRGWALK_H_ +#define _FIRM_IR_IRGWALK_H_ - -# ifndef _IRGWALK_H_ -# define _IRGWALK_H_ - -# include "irnode.h" +#include "firm_types.h" /* type of callback function for ir_graph walk */ #ifndef _IRG_WALK_FUNC_TYPEDEF_ @@ -146,38 +144,33 @@ 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. + * before going to another block, starting at the end operation. * 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. + * irg_walk_blkwise_graph() 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. 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. + * Walks only intraprocedural, even in interprocedural view. * + * @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, passed 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); +void irg_walk_blkwise_graph(ir_graph *irg, irg_walk_func *pre, irg_walk_func *post, void *env); /** - * Walks over all reachable nodes in the ir graph in block-wise order. + * Additionally walk over all anchors. Do NOT increase the visit flag. + * This function visits all anchor nodes that otherwise might not been visited in a + * walk, for instance the Bad() node. * * @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, passed 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); +void irg_walk_anchors(ir_graph *irg, irg_walk_func *pre, irg_walk_func *post, void *env); -# endif /* _IRGWALK_H_ */ +#endif /* _FIRM_IR_IRGWALK_H_ */