+/*
+ * 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.
+ */
+
/**
- * Backend driver.
- * @author Sebastian Hack
- * @date 25.11.2004
- * @cvsid $Id$
+ * @file
+ * @brief Main Backend driver.
+ * @author Sebastian Hack
+ * @date 25.11.2004
+ * @version $Id$
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#include "irtools.h"
#include "irvrfy.h"
#include "irprintf.h"
-#include "return.h"
#include "firmstat.h"
-#include "cfopt.h"
#include "execfreq.h"
-#include "bearch.h"
+#include "bearch_t.h"
#include "be_t.h"
#include "bemodule.h"
#include "beutil.h"
#include "belive_t.h"
#include "bespillbelady.h"
#include "bera.h"
-#include "beraextern.h"
#include "bechordal_t.h"
#include "beifg.h"
#include "beifg_impl.h"
#include "beverify.h"
#include "beprofile.h"
#include "be_dbgout.h"
+#include "beirg_t.h"
#ifdef WITH_ILP
#include "beilpsched.h"
DUMP_NONE, /* dump flags */
BE_TIME_OFF, /* no timing */
0, /* no opt profile */
- 1, /* try to omit frame pointer */
- 0, /* always stabs debugging output */
+ 0, /* try to omit frame pointer */
+ 0, /* no stabs debugging output */
BE_VRFY_WARN, /* verification level: warn */
BE_SCHED_LIST, /* scheduler: list scheduler */
"i44pc52.info.uni-karlsruhe.de", /* ilp server */
- "cplex" /* ilp solver */
+ "cplex", /* ilp solver */
+ 0, /* enable statistic event dumping */
};
/* config file. */
static const lc_opt_table_entry_t be_main_options[] = {
LC_OPT_ENT_STR ("config", "read another config file containing backend options", config_file, sizeof(config_file)),
LC_OPT_ENT_ENUM_MASK("dump", "dump irg on several occasions", &dump_var),
- LC_OPT_ENT_NEGBOOL ("noomitfp", "do not omit frame pointer", &be_options.omit_fp),
+ LC_OPT_ENT_BOOL ("omitfp", "omit frame pointer", &be_options.omit_fp),
LC_OPT_ENT_BOOL ("stabs", "enable stabs debug support", &be_options.stabs_debug_support),
LC_OPT_ENT_ENUM_PTR ("vrfy", "verify the backend irg", &vrfy_var),
LC_OPT_ENT_BOOL ("time", "get backend timing statistics", &be_options.timing),
LC_OPT_ENT_BOOL ("profile", "instrument the code for execution count profiling", &be_options.opt_profile),
LC_OPT_ENT_ENUM_PTR ("sched", "select a scheduler", &sched_var),
- LC_OPT_ENT_STR ("statfile", "append statistics to file statfile", &be_options.stat_file_name, sizeof(be_options.stat_file_name)),
+ LC_OPT_ENT_BOOL ("statev", "dump statistic events", &be_options.statev),
#ifdef WITH_ILP
LC_OPT_ENT_STR ("ilp.server", "the ilp server name", be_options.ilp_server, sizeof(be_options.ilp_server)),
LC_OPT_ENT_STR ("ilp.solver", "the ilp solver name", be_options.ilp_solver, sizeof(be_options.ilp_solver)),
#endif /* WITH_ILP */
- { NULL }
+ LC_OPT_LAST
};
static be_module_list_entry_t *isa_ifs = NULL;
}
/** The be parameters returned by default, all off. */
-const static backend_params be_params = {
- NULL,
- NULL,
- 0,
- NULL,
+static const backend_params be_params = {
+ 0, /* need dword lowering */
+ 0, /* don't support inlien assembler yet */
+ NULL, /* no additional opcodes */
+ NULL, /* will be set later */
+ NULL, /* but yet no creator function */
+ NULL, /* context for create_intrinsic_fkt */
+ NULL, /* no if conversion settings */
};
/* Perform schedule verification if requested. */
-static void be_sched_vrfy(ir_graph *irg, int vrfy_opt) {
+static void be_sched_vrfy(be_irg_t *birg, int vrfy_opt) {
if (vrfy_opt == BE_VRFY_WARN) {
- be_verify_schedule(irg);
+ be_verify_schedule(birg);
}
else if (vrfy_opt == BE_VRFY_ASSERT) {
- assert(be_verify_schedule(irg) && "Schedule verification failed.");
+ assert(be_verify_schedule(birg) && "Schedule verification failed.");
}
}
obstack_init(&env->obst);
env->arch_env = obstack_alloc(&env->obst, sizeof(env->arch_env[0]));
env->options = &be_options;
- FIRM_DBG_REGISTER(env->dbg, "be.main");
arch_env_init(env->arch_env, isa_if, file_handle, env);
edges_deactivate_kind(irg, EDGE_KIND_DEP);
edges_activate_kind(irg, EDGE_KIND_DEP);
- DBG((env->dbg, LEVEL_2, "====> IRG: %F\n", irg));
dump(DUMP_INITIAL, irg, "-begin", dump_ir_block_graph);
be_stat_init_irg(env->arch_env, irg);
/* set the current graph (this is important for several firm functions) */
current_ir_graph = irg;
- /* Normalize proj nodes. */
- normalize_proj_nodes(irg);
-
- /* Make just one return node. */
- normalize_one_return(irg);
+ /* we do this before critical edge split. As this produces less returns,
+ because sometimes (= 164.gzip) multiple returns are slower */
+ normalize_n_returns(irg);
/* Remove critical edges */
remove_critical_cf_edges(irg);
/* Ensure, that the ir_edges are computed. */
edges_assure(irg);
- /* reset the phi handler. */
- be_phi_handler_reset(env->phi_handler);
-
set_irg_phase_state(irg, phase_backend);
+
+ dump(DUMP_INITIAL, irg, "-prepared", dump_ir_block_graph);
}
#define BE_TIMER_PUSH(timer) \
char prof_filename[256];
static const char suffix[] = ".prof";
be_irg_t *birgs;
- unsigned num_birgs;
+ int num_birgs;
ir_graph **irg_list, **backend_irg_list;
lc_timer_t *t_abi = NULL;
ir_graph *irg = birg->irg;
optimization_state_t state;
const arch_code_generator_if_t *cg_if;
- char irg_name[128];
/* set the current graph (this is important for several firm functions) */
current_ir_graph = irg;
+ /* reset the phi handler. */
+ be_phi_handler_reset(env.phi_handler);
+
#ifdef FIRM_STATISTICS
- if(be_stat_ev_is_active()) {
- ir_snprintf(irg_name, sizeof(irg_name), "%F", irg);
- be_stat_tags[STAT_TAG_CLS] = "<all>";
- be_stat_tags[STAT_TAG_IRG] = irg_name;
- be_stat_ev_push(be_stat_tags, STAT_TAG_LAST, be_stat_file);
- }
+ stat_ev_ctx_push_fobj("irg", irg);
#endif
/* stop and reset timers */
/* some transformations need to be done before abi introduce */
arch_code_generator_before_abi(birg->cg);
- /* reset the phi handler. */
- be_phi_handler_reset(env.phi_handler);
-
/* implement the ABI conventions. */
BE_TIMER_PUSH(t_abi);
birg->abi = be_abi_introduce(birg);
arch_code_generator_prepare_graph(birg->cg);
BE_TIMER_POP(t_codegen);
+ /* reset the phi handler. */
+ be_phi_handler_reset(env.phi_handler);
+
be_do_stat_nodes(irg, "03 Prepare");
dump(DUMP_PREPARED, irg, "-prepared", dump_ir_block_graph);
/**
* Create execution frequencies from profile data or estimate some
*/
- if (be_profile_has_data()) {
+ if (be_profile_has_data())
birg->exec_freq = be_create_execfreqs_from_profile(irg);
- } else {
+ else
birg->exec_freq = compute_execfreq(irg, 10);
- }
+
+
+ /* disabled for now, fails for EmptyFor.c and XXEndless.c */
+ /* be_live_chk_compare(birg); */
/* let backend prepare scheduling */
BE_TIMER_PUSH(t_codegen);
break;
#ifdef WITH_ILP
case BE_SCHED_ILP:
- be_ilp_sched(birg);
- //fprintf(stderr, "Warning: ILP scheduler not yet fully implemented, falling back to list scheduler.\n");
- //list_sched(birg, &be_options);
+ be_ilp_sched(birg, &be_options);
break;
#endif /* WITH_ILP */
};
/* check schedule */
BE_TIMER_PUSH(t_verify);
- be_sched_vrfy(irg, be_options.vrfy_option);
+ be_sched_vrfy(birg, be_options.vrfy_option);
BE_TIMER_POP(t_verify);
be_do_stat_nodes(irg, "04 Schedule");
dump(DUMP_SCHED, irg, "-assured", dump_ir_block_graph_sched);
be_do_stat_nodes(irg, "05 Constraints");
+ /* stuff needs to be done after scheduling but before register allocation */
+ BE_TIMER_PUSH(t_codegen);
+ arch_code_generator_before_ra(birg->cg);
+ BE_TIMER_POP(t_codegen);
+
/* connect all stack modifying nodes together (see beabi.c) */
BE_TIMER_PUSH(t_abi);
- be_abi_fix_stack_nodes(birg->abi, NULL);
+ be_abi_fix_stack_nodes(birg->abi);
BE_TIMER_POP(t_abi);
dump(DUMP_SCHED, irg, "-fix_stack", dump_ir_block_graph_sched);
/* check schedule */
BE_TIMER_PUSH(t_verify);
- be_sched_vrfy(irg, be_options.vrfy_option);
+ be_sched_vrfy(birg, be_options.vrfy_option);
BE_TIMER_POP(t_verify);
/* do some statistics */
be_do_stat_reg_pressure(birg);
- /* stuff needs to be done after scheduling but before register allocation */
- BE_TIMER_PUSH(t_codegen);
- arch_code_generator_before_ra(birg->cg);
- BE_TIMER_POP(t_codegen);
-
#ifdef FIRM_STATISTICS
- if(be_stat_ev_is_active()) {
- be_stat_ev_l("costs_before_ra",
- (long) be_estimate_irg_costs(irg, env.arch_env, birg->exec_freq));
- }
+ stat_ev_dbl("costs_before_ra", be_estimate_irg_costs(irg, env.arch_env, birg->exec_freq));
#endif
/* Do register allocation */
BE_TIMER_POP(t_regalloc);
#ifdef FIRM_STATISTICS
- if(be_stat_ev_is_active()) {
- be_stat_ev_l("costs_after_ra",
- (long) be_estimate_irg_costs(irg, env.arch_env, birg->exec_freq));
- }
+ stat_ev_dbl("costs_before_ra", be_estimate_irg_costs(irg, env.arch_env, birg->exec_freq));
#endif
dump(DUMP_RA, irg, "-ra", dump_ir_block_graph_sched);
/* fix stack offsets */
BE_TIMER_PUSH(t_abi);
- be_abi_fix_stack_nodes(birg->abi, NULL);
- be_remove_dead_nodes_from_schedule(irg);
+ be_abi_fix_stack_nodes(birg->abi);
+ be_remove_dead_nodes_from_schedule(birg);
be_abi_fix_stack_bias(birg->abi);
BE_TIMER_POP(t_abi);
irg_verify(irg, VRFY_ENFORCE_SSA);
be_check_dominance(irg);
be_verify_out_edges(irg);
- be_verify_schedule(irg);
+ be_verify_schedule(birg);
be_verify_register_allocation(env.arch_env, irg);
- be_verify_spillslots(env.arch_env, irg);
} else if (be_options.vrfy_option == BE_VRFY_ASSERT) {
assert(irg_verify(irg, VRFY_ENFORCE_SSA) && "irg verification failed");
assert(be_verify_out_edges(irg) && "out edge verification failed");
assert(be_check_dominance(irg) && "Dominance verification failed");
- assert(be_verify_schedule(irg) && "Schedule verification failed");
+ assert(be_verify_schedule(birg) && "Schedule verification failed");
assert(be_verify_register_allocation(env.arch_env, irg)
&& "register allocation verification failed");
- assert(be_verify_spillslots(env.arch_env, irg) && "Spillslot verification failed");
}
BE_TIMER_POP(t_verify);
BE_TIMER_POP(t_other);
#define LC_EMIT(timer) \
- if(!be_stat_ev_is_active()) { \
printf("%-20s: %.3lf msec\n", lc_timer_get_description(timer), (double)lc_timer_elapsed_usec(timer) / 1000.0); \
- } else { \
- be_stat_ev_l(lc_timer_get_name(timer), lc_timer_elapsed_msec(timer)); \
- }
+ stat_ev_dbl(lc_timer_get_name(timer), lc_timer_elapsed_msec(timer));
+
#define LC_EMIT_RA(timer) \
- if(!be_stat_ev_is_active()) { \
printf("\t%-20s: %.3lf msec\n", lc_timer_get_description(timer), (double)lc_timer_elapsed_usec(timer) / 1000.0); \
- } else { \
- be_stat_ev_l(lc_timer_get_name(timer), lc_timer_elapsed_msec(timer)); \
- }
+ stat_ev_dbl(lc_timer_get_name(timer), lc_timer_elapsed_msec(timer)); \
+
BE_TIMER_ONLY(
- if(!be_stat_ev_is_active()) {
- printf("==>> IRG %s <<==\n", get_entity_name(get_irg_entity(irg)));
- printf("# nodes at begin: %u\n", num_nodes_b);
- printf("# nodes before ra: %u\n", num_nodes_r);
- printf("# nodes at end: %u\n\n", num_nodes_a);
- }
+ printf("==>> IRG %s <<==\n", get_entity_name(get_irg_entity(irg)));
+ printf("# nodes at begin: %u\n", num_nodes_b);
+ printf("# nodes before ra: %u\n", num_nodes_r);
+ printf("# nodes at end: %u\n\n", num_nodes_a);
LC_EMIT(t_abi);
LC_EMIT(t_codegen);
LC_EMIT(t_sched);
#endif /* FIRM_STATISTICS */
free_ir_graph(irg);
#endif /* if 0 */
- if(be_stat_ev_is_active()) {
- be_stat_ev_pop();
- }
+ stat_ev_ctx_pop();
}
be_profile_free();
be_done_env(&env);
lc_timer_reset_and_start(t);
}
-#ifdef FIRM_STATISTICS
- be_init_stat_file(be_options.stat_file_name, cup_name);
-#endif
+ if (be_options.statev) {
+ const char *dot = strrchr(cup_name, '.');
+ const char *pos = dot ? dot : cup_name + strlen(cup_name);
+ char *buf = alloca(pos - cup_name + 1);
+ strncpy(buf, cup_name, pos - cup_name);
+
+ stat_ev_begin(buf);
+ }
/* never build code for pseudo irgs */
set_visit_pseudo_irgs(0);
if (be_options.timing == BE_TIME_ON) {
lc_timer_stop(t);
lc_timer_leave_high_priority();
- if(be_stat_ev_is_active()) {
- be_stat_ev_l("backend_time", lc_timer_elapsed_msec(t));
- } else {
- printf("%-20s: %lu msec\n", "BEMAINLOOP", lc_timer_elapsed_msec(t));
- }
+ stat_ev_dbl("backend_time", lc_timer_elapsed_msec(t));
+ printf("%-20s: %lu msec\n", "BEMAINLOOP", lc_timer_elapsed_msec(t));
}
-#ifdef FIRM_STATISTICS
- be_close_stat_file();
-#endif
+ if (be_options.statev)
+ stat_ev_end();
}
/** The debug info retriever function. */
return NULL;
}
-int be_put_ignore_regs(const be_irg_t *birg, const arch_register_class_t *cls, bitset_t *bs)
+unsigned be_put_ignore_regs(const be_irg_t *birg, const arch_register_class_t *cls, bitset_t *bs)
{
- if(bs == NULL)
+ if (bs == NULL)
bs = bitset_alloca(cls->n_regs);
else
bitset_clear_all(bs);
- assert(bitset_size(bs) == (unsigned) cls->n_regs);
+ assert(bitset_size(bs) == (unsigned)cls->n_regs);
arch_put_non_ignore_regs(birg->main_env->arch_env, cls, bs);
bitset_flip_all(bs);
be_abi_put_ignore_regs(birg->abi, cls, bs);
projects / libfirm / blobdiff