X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Firgwalk.h;h=5173e4b9aa54706c8a7001083a06b618a1dd3018;hb=23ea16875f38dc0c067cce24f64b5c70f3acc496;hp=ddf6ed4638f7744e3f8e6c05ffad1f2026d94abe;hpb=92113524c53ef7b31e31b9ab4f4e2f7af69d46b8;p=libfirm diff --git a/ir/ir/irgwalk.h b/ir/ir/irgwalk.h index ddf6ed463..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_ @@ -59,7 +57,7 @@ typedef void irg_walk_func(ir_node *node, void *env); * @param node - the start node * @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 + * @param env - environment, passed to pre and post * */ void irg_walk(ir_node *node, irg_walk_func *pre, irg_walk_func *post, void *env); @@ -70,7 +68,7 @@ void irg_walk(ir_node *node, irg_walk_func *pre, irg_walk_func *post, void *env) * @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 + * @param env - environment, passed to pre and post * * Like irg_walk(), but walks over all reachable nodes in the ir * graph, starting at the end operation. During the walk current_ir_graph @@ -84,7 +82,7 @@ void irg_walk_graph(ir_graph *irg, irg_walk_func *pre, irg_walk_func *post, void * * @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 + * @param env - environment, passed to pre and post * * This function executes irg_walk(end, pre, post, env) for all irgraphs in irprog. * Sets current_ir_graph properly for each walk. Conserves current @@ -98,25 +96,24 @@ void all_irg_walk(irg_walk_func *pre, irg_walk_func *post, void *env); * * @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 + * @param env - environment, passed to pre and post * * This function walks all irgs in interprocedural view. * Visits each node only once. Sets current_ir_graph properly. Does not use the link field. */ void cg_walk(irg_walk_func *pre, irg_walk_func *post, void *env); -/** - * Walks only over Block nodes in the graph. +/** Walks only over Block nodes in the graph. * * @param node - the start node * @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 + * @param env - environment, passed to pre and post * * This function Walks only over Block nodes in the graph. Has it's own visited * flag, so that it can be interleaved with the other walker. * If a none block is passed, starts at the block this node belongs to. - * If end is passed also visites kept alive blocks. Does not use the link field. + * If end is passed also visits kept alive blocks. Does not use the link field. */ void irg_block_walk(ir_node *node, irg_walk_func *pre, irg_walk_func *post, void *env); @@ -126,7 +123,7 @@ void irg_block_walk(ir_node *node, irg_walk_func *pre, irg_walk_func *post, void * @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 + * @param env - environment, passed to pre and post * * Like irg_block_walk(), but walks over all reachable blocks in the * ir graph, starting at the end block. Does not use the link field. @@ -138,7 +135,7 @@ void irg_block_walk_graph(ir_graph *irg, irg_walk_func *pre, irg_walk_func *post * * @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 + * @param env - environment, passed to pre and post * * This function walks over all code in const_code_irg. * Uses visited flag in const_code_irg. Does not use the link field. @@ -147,38 +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, 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' + * @param env - environment, passed to pre and post */ -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, 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. + * @param env - environment, passed to pre and post */ -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_ */