X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Firgwalk.h;h=fcf691bd156c6b79538eaffafce9e22979ed7ebe;hb=169fd803ea2ed08171113c1fd7ab4e528e1ebc26;hp=a40dcd8aa192a242a5b43d4feb95e7b039343873;hpb=dffd3e5d091f27cc3ddbfed27f27b48fc0e52c29;p=libfirm diff --git a/ir/ir/irgwalk.h b/ir/ir/irgwalk.h index a40dcd8aa..fcf691bd1 100644 --- a/ir/ir/irgwalk.h +++ b/ir/ir/irgwalk.h @@ -44,12 +44,6 @@ typedef void irg_walk_func(ir_node *node, void *env); #endif -/** Allocates some necessary datastructures. */ -void init_ip_walk(void); - -/** Frees some necessary datastructures. */ -void finish_ip_walk(void); - /** * Walks over the ir graph. * @@ -60,12 +54,12 @@ 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 * @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); @@ -76,7 +70,7 @@ 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 @@ -90,7 +84,7 @@ 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 @@ -104,25 +98,24 @@ 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); @@ -132,7 +125,7 @@ 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. @@ -144,11 +137,30 @@ 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. */ 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 end operation. + * Executes pre before visiting the predecessor of a node, post after. + * 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. + * 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 + */ +void irg_walk_blkwise_graph(ir_graph *irg, irg_walk_func *pre, irg_walk_func *post, void *env); + # endif /* _IRGWALK_H_ */