X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbelistsched.h;h=d98d3edc816c7312289190ea75c00265f1268964;hb=026ec52ac914eee06e7afb961fb754735fb4ad9f;hp=56880dbfb390ab97ff5fc84e383448a2ba1b59d9;hpb=631cafb4a394c528e70a399d286abb5b33ef365c;p=libfirm diff --git a/ir/be/belistsched.h b/ir/be/belistsched.h index 56880dbfb..d98d3edc8 100644 --- a/ir/be/belistsched.h +++ b/ir/be/belistsched.h @@ -1,19 +1,38 @@ -/** - * Primitive list scheduling. - * @date 20.10.2004 - * @author Sebastian Hack +/* + * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved. + * + * This file is part of libFirm. + * + * This file may be distributed and/or modified under the terms of the + * GNU General Public License version 2 as published by the Free Software + * Foundation and appearing in the file LICENSE.GPL included in the + * packaging of this file. + * + * Licensees holding valid libFirm Professional Edition licenses may use + * this file in accordance with the libFirm Commercial License. + * Agreement provided with the Software. + * + * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE + * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE. */ -#ifndef _FIRM_LIST_SCHED -#define _FIRM_LIST_SCHED - -#include "firm_config.h" +/** + * @file + * @brief Primitive list scheduling with different node selectors. + * @author Sebastian Hack + * @date 20.10.2004 + * @version $Id$ + */ +#ifndef FIRM_BE_BELISTSCHED_H +#define FIRM_BE_BELISTSCHED_H #include "firm_types.h" +#include "irnodeset.h" -#include "benodesets.h" -#include "bearch_t.h" #include "be.h" +#include "bearch.h" +#include "beirg.h" typedef struct _list_sched_selector_t list_sched_selector_t; @@ -26,14 +45,18 @@ struct _list_sched_selector_t { /** * Called before a graph is being scheduled. - * @param arch_env The architecture environment. - * @param irg The graph. + * May be NULL. + * + * @param vtab The selector vtab. + * @param birg The backend graph. * @return The environment pointer that is passed to all other functions in this struct. */ - void *(*init_graph)(const list_sched_selector_t *vtab, const arch_env_t *arch_env, ir_graph *irg); + void *(*init_graph)(const list_sched_selector_t *vtab, const be_irg_t *birg); /** * Called before scheduling starts on a block. + * May be NULL. + * * @param graph_env The environment. * @param block The block which is to be scheduled. * @return A per-block pointer that is additionally passed to select. @@ -44,6 +67,7 @@ struct _list_sched_selector_t { * The selection function. * It picks one node out of the ready list to be scheduled next. * The function does not have to delete the node from the ready set. + * MUST be implemented. * * @param block_env Some private information as returned by init_block(). * @param sched_head The schedule so far. @@ -51,10 +75,13 @@ struct _list_sched_selector_t { * @param live_set A set containing all nodes currently alive. * @return The chosen node. */ - ir_node *(*select)(void *block_env, nodeset *ready_set, nodeset *live_set); + ir_node *(*select)(void *block_env, ir_nodeset_t *ready_set, + ir_nodeset_t *live_set); /** * This function decides, if a node should appear in a schedule. + * May be NULL. + * * @param block_env The block environment. * @param irn The node. * @return 1, if the node should be scheduled, 0 if not. @@ -63,6 +90,8 @@ struct _list_sched_selector_t { /** * This function gets executed after a node finally has been made ready. + * May be NULL. + * * @param block_env The block environment. * @param irn The node made ready. * @param pred The previously scheduled node. @@ -71,6 +100,8 @@ struct _list_sched_selector_t { /** * This function gets executed after a node finally has been selected. + * May be NULL. + * * @param block_env The block environment. * @param irn The selected node. */ @@ -78,12 +109,17 @@ struct _list_sched_selector_t { /** * Returns the execution time of node irn. + * May be NULL. + * + * @param block_env The block environment. + * @param irn The selected node. */ unsigned (*exectime)(void *block_env, const ir_node *irn); /** * Calculates the latency of executing cycle curr_cycle of node curr in cycle pred_cycle * of node pred. + * May be NULL. * * @param block_env The block environment. * @param pred The previous node. @@ -95,6 +131,8 @@ struct _list_sched_selector_t { /** * Called after a block has been scheduled. + * May be NULL. + * * @param env The environment. * @param block_env The per block environment as returned by init_block(). */ @@ -102,36 +140,46 @@ struct _list_sched_selector_t { /** * Called after a whole graph has been scheduled. + * May be NULL. + * * @param env The environment. */ void (*finish_graph)(void *env); - }; /** * A trivial selector, that just selects the first ready node. */ -extern const list_sched_selector_t *trivial_selector; +extern const list_sched_selector_t trivial_selector; -extern const list_sched_selector_t *random_selector; +/** + * A trivial selector that selects a pseudo-random-node (deterministic). + */ +extern const list_sched_selector_t random_selector; /** * A selector that tries to minimize the register pressure. * @note Not really operational yet. */ -extern const list_sched_selector_t *reg_pressure_selector; +extern const list_sched_selector_t reg_pressure_selector; /** * A selector based on trace scheduling as introduced by Muchnik[TM] */ -extern const list_sched_selector_t *muchnik_selector; +extern const list_sched_selector_t muchnik_selector; /** * A selector based on trace scheduling as introduced by Muchnik[TM] - * but using the mueller heuristic selector. + * but using the Mueller heuristic selector. + */ +extern const list_sched_selector_t heuristic_selector; + +/** + * A selector based on the strong normal form theorem (ie minimizing + * the register pressure). */ -extern const list_sched_selector_t *heuristic_selector; +extern const list_sched_selector_t normal_selector; /** * List schedule a graph. @@ -139,18 +187,15 @@ extern const list_sched_selector_t *heuristic_selector; * head of the schedule. You can walk this list using the functions in * list.h. * - * @param birg The backend irg. - * @param enable_mris Flag indicating if mris preparation should be done + * @param birg The backend irg. + * @param be_opts The backend options */ -void list_sched(const be_irg_t *birg, be_options_t *be_opts); - -#ifdef WITH_LIBCORE -#include +void list_sched(be_irg_t *birg, be_options_t *be_opts); /** - * Register list scheduler options. + * List schedule a block. + * Same as list_sched but only for a certain block (needed for ILP fallback). */ -void list_sched_register_options(lc_opt_entry_t *grp); -#endif /* WITH_LIBCORE */ +void list_sched_single_block(const be_irg_t *birg, ir_node *block, be_options_t *be_opts); -#endif /* _FIRM_LIST_SCHED */ +#endif /* FIRM_BE_BELISTSCHED_H */