X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbespillmorgan.c;h=1ebce396b9f9bc0caae5f2ae9e5c23b78c78031c;hb=8cb8fe7d9d69a9bd06365823d5d5f68d051f6db0;hp=b30ea6ef0823ebd66b13b9bc2f8e61a8cb520f0f;hpb=863d31d7a5c8210432fef88b30fc3e8353131538;p=libfirm diff --git a/ir/be/bespillmorgan.c b/ir/be/bespillmorgan.c index b30ea6ef0..1ebce396b 100644 --- a/ir/be/bespillmorgan.c +++ b/ir/be/bespillmorgan.c @@ -1,32 +1,52 @@ /* - * Author: Matthias Braun - * Date: 05.05.2006 - * Copyright: (c) Universitaet Karlsruhe - * License: This file is protected by GPL - GNU GENERAL PUBLIC LICENSE. + * Copyright (C) 1995-2007 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. + */ + +/** + * @file + * @brief Morgans spill algorithm. + * @author Matthias Braun + * @date 05.05.2006 + * @version $Id$ */ #ifdef HAVE_CONFIG_H #include "config.h" #endif -#include "bespillmorgan.h" - -#include "bechordal_t.h" -#include "bespill.h" -#include "belive_t.h" -#include "beabi.h" #include "irgwalk.h" -#include "besched.h" -#include "beutil.h" #include "irloop_t.h" #include "irgraph_t.h" #include "irprintf.h" -#include "obstack.h" +#include "obst.h" +#include "bespillmorgan.h" +#include "bechordal_t.h" +#include "bespill.h" +#include "belive_t.h" +#include "beabi.h" #include "bespillbelady.h" #include "beverify.h" #include "benodesets.h" #include "bespilloptions.h" +#include "besched.h" +#include "beutil.h" +#include "bemodule.h" +#include "beirg_t.h" #define DBG_LIVE 1 #define DBG_LOOPANA 2 @@ -541,15 +561,15 @@ static int reduce_register_pressure_in_loop(morgan_env_t *env, const ir_loop *lo } void be_spill_morgan(be_irg_t *birg, const arch_register_class_t *cls) { - ir_graph *irg = be_get_birg_irg(birg); + ir_graph *irg = be_get_birg_irg(birg); morgan_env_t env; be_assure_liveness(birg); env.arch = birg->main_env->arch_env; - env.irg = irg; - env.cls = cls; - env.lv = be_get_birg_liveness(birg); + env.irg = irg; + env.cls = cls; + env.lv = be_get_birg_liveness(birg); env.senv = be_new_spill_env(birg); DEBUG_ONLY(be_set_spill_env_dbg_module(env.senv, dbg);) @@ -557,13 +577,13 @@ void be_spill_morgan(be_irg_t *birg, const arch_register_class_t *cls) { env.registers_available = env.cls->n_regs - be_put_ignore_regs(birg, env.cls, NULL); - env.loop_attr_set = new_set(loop_attr_cmp, 5); + env.loop_attr_set = new_set(loop_attr_cmp, 5); env.block_attr_set = new_set(block_attr_cmp, 20); - /*-- Part1: Analysis --*/ + /* -- Part1: Analysis -- */ /* construct control flow loop tree */ - if(! (get_irg_loopinfo_state(irg) & loopinfo_cf_consistent)) { + if (! (get_irg_loopinfo_state(irg) & loopinfo_cf_consistent)) { construct_cf_backedges(irg); } @@ -571,7 +591,7 @@ void be_spill_morgan(be_irg_t *birg, const arch_register_class_t *cls) { irg_block_walk_graph(irg, construct_block_livethrough_unused, construct_loop_edges, &env); construct_loop_livethrough_unused(&env, get_irg_loop(irg)); - /*-- Part2: Transformation --*/ + /* -- Part2: Transformation -- */ /* spill unused livethrough values around loops and blocks where * the pressure is too high @@ -582,10 +602,10 @@ void be_spill_morgan(be_irg_t *birg, const arch_register_class_t *cls) { be_insert_spills_reloads(env.senv); /* Verify the result */ - if(birg->main_env->options->vrfy_option == BE_VRFY_WARN) { - be_verify_schedule(irg); + if (birg->main_env->options->vrfy_option == BE_VRFY_WARN) { + be_verify_schedule(birg); } else if (birg->main_env->options->vrfy_option == BE_VRFY_ASSERT) { - assert(be_verify_schedule(irg)); + assert(be_verify_schedule(birg)); } /* cleanup */