X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;ds=sidebyside;f=ir%2Fbe%2Fbelive.c;h=f4228690a7c8730444adadf41ec2a545ffc67138;hb=d580fc0807041300320f21f4c5362ac0dc04c28f;hp=c9eda11a52c14437523751cf07681b4ce2911ad5;hpb=e32ef434711ff7cd3376d52917c8a33931c836c9;p=libfirm diff --git a/ir/be/belive.c b/ir/be/belive.c index c9eda11a5..f4228690a 100644 --- a/ir/be/belive.c +++ b/ir/be/belive.c @@ -1,7 +1,28 @@ +/* + * 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. + */ + /** - * Interblock liveness analysis. - * @author Sebastian Hack - * @date 6.12.2004 + * @file + * @brief Interblock liveness analysis. + * @author Sebastian Hack + * @date 06.12.2004 + * @version $Id$ */ #ifdef HAVE_CONFIG_H #include "config.h" @@ -17,8 +38,9 @@ #include "beutil.h" #include "belive_t.h" #include "besched_t.h" +#include "bemodule.h" -#define DBG_MODULE "firm.be.liveness" +DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;) #define LV_STD_SIZE 128 #define LV_USE_BINARY_SEARCH @@ -238,7 +260,7 @@ static int be_lv_remove(struct _be_lv_t *li, ir_node *bl, ir_node *irn) payload[n - 1].u.node.flags = 0; --irn_live[0].u.head.n_members; - DBG((li->dbg, LEVEL_3, "\tdeleting %+F from %+F at pos %d\n", irn, bl, pos)); + DBG((dbg, LEVEL_3, "\tdeleting %+F from %+F at pos %d\n", irn, bl, pos)); return 1; } } @@ -265,7 +287,7 @@ static void register_node(be_lv_t *lv, const ir_node *irn) static INLINE void mark_live_in(be_lv_t *lv, ir_node *block, ir_node *irn) { struct _be_lv_info_node_t *n = be_lv_get_or_set(lv, block, irn); - DBG((lv->dbg, LEVEL_2, "marking %+F live in at %+F\n", irn, block)); + DBG((dbg, LEVEL_2, "marking %+F live in at %+F\n", irn, block)); n->flags |= be_lv_state_in; register_node(lv, irn); } @@ -276,7 +298,7 @@ static INLINE void mark_live_in(be_lv_t *lv, ir_node *block, ir_node *irn) static INLINE void mark_live_out(be_lv_t *lv, ir_node *block, ir_node *irn) { struct _be_lv_info_node_t *n = be_lv_get_or_set(lv, block, irn); - DBG((lv->dbg, LEVEL_2, "marking %+F live out at %+F\n", irn, block)); + DBG((dbg, LEVEL_2, "marking %+F live out at %+F\n", irn, block)); n->flags |= be_lv_state_out | be_lv_state_end; register_node(lv, irn); } @@ -287,7 +309,7 @@ static INLINE void mark_live_out(be_lv_t *lv, ir_node *block, ir_node *irn) static INLINE void mark_live_end(be_lv_t *lv, ir_node *block, ir_node *irn) { struct _be_lv_info_node_t *n = be_lv_get_or_set(lv, block, irn); - DBG((lv->dbg, LEVEL_2, "marking %+F live end at %+F\n", irn, block)); + DBG((dbg, LEVEL_2, "marking %+F live end at %+F\n", irn, block)); n->flags |= be_lv_state_end; register_node(lv, irn); } @@ -439,7 +461,7 @@ static void lv_dump_block(void *context, FILE *f, const ir_node *bl) } } -static void *lv_phase_data_init(phase_t *phase, ir_node *irn, void *old) +static void *lv_phase_data_init(ir_phase *phase, ir_node *irn, void *old) { struct _be_lv_info_t *info = phase_alloc(phase, LV_STD_SIZE * sizeof(info[0])); memset(info, 0, LV_STD_SIZE * sizeof(info[0])); @@ -462,13 +484,12 @@ be_lv_t *be_liveness(ir_graph *irg) be_lv_t *lv = xmalloc(sizeof(lv[0])); memset(lv, 0, sizeof(lv[0])); - FIRM_DBG_REGISTER(lv->dbg, DBG_MODULE); lv->irg = irg; lv->nodes = bitset_malloc(2 * get_irg_last_idx(irg)); lv->hook_info.context = lv; lv->hook_info.hook._hook_node_info = lv_dump_block; register_hook(hook_node_info, &lv->hook_info); - phase_init(&lv->ph, "liveness", irg, PHASE_DEFAULT_GROWTH, lv_phase_data_init); + phase_init(&lv->ph, "liveness", irg, PHASE_DEFAULT_GROWTH, lv_phase_data_init, NULL); compute_liveness(lv); return lv; @@ -486,7 +507,7 @@ void be_liveness_recompute(be_lv_t *lv) bitset_clear_all(lv->nodes); phase_free(&lv->ph); - phase_init(&lv->ph, "liveness", lv->irg, PHASE_DEFAULT_GROWTH, lv_phase_data_init); + phase_init(&lv->ph, "liveness", lv->irg, PHASE_DEFAULT_GROWTH, lv_phase_data_init, NULL); compute_liveness(lv); } @@ -512,7 +533,7 @@ void be_liveness_remove(be_lv_t *lv, ir_node *irn) w.lv = lv; w.data = irn; dom_tree_walk(get_nodes_block(irn), lv_remove_irn_walker, NULL, &w); - if(idx <= bitset_size(lv->nodes)) + if(idx < bitset_size(lv->nodes)) bitset_clear(lv->nodes, idx); } @@ -676,20 +697,13 @@ int be_check_dominance(ir_graph *irg) pset *be_liveness_transfer(const arch_env_t *arch_env, const arch_register_class_t *cls, ir_node *irn, pset *live) { int i, n; - FIRM_DBG_REGISTER(firm_dbg_module_t *dbg, DBG_MODULE); - - DEBUG_ONLY( - const ir_node *x; - DBG((dbg, LEVEL_1, "%+F\n", irn)); - for(x = pset_first(live); x; x = pset_next(live)) - DBG((dbg, LEVEL_1, "\tlive: %+F\n", x)); - ) /* You should better break out of your loop when hitting the first phi function. */ assert(!is_Phi(irn) && "liveness_transfer produces invalid results for phi nodes"); if(arch_irn_consider_in_reg_alloc(arch_env, cls, irn)) { ir_node *del = pset_remove_ptr(live, irn); + (void) del; assert(irn == del); } @@ -749,3 +763,10 @@ pset *be_liveness_nodes_live_at_input(const be_lv_t *lv, const arch_env_t *arch_ return live; } + +void be_init_live(void) +{ + FIRM_DBG_REGISTER(dbg, "firm.be.liveness"); +} + +BE_REGISTER_MODULE_CONSTRUCTOR(be_init_live);