#include <stdarg.h>
#include <stdio.h>
-#ifdef WITH_LIBCORE
#include <libcore/lc_opts.h>
#include <libcore/lc_opts_enum.h>
#include <libcore/lc_timing.h>
-#endif /* WITH_LIBCORE */
#include "obst.h"
#include "bitset.h"
#include "cfopt.h"
#include "execfreq.h"
-#include "bearch.h"
-#include "firm/bearch_firm.h"
-#include "ia32/bearch_ia32.h"
-#include "arm/bearch_arm.h"
-#include "ppc32/bearch_ppc32.h"
-#include "mips/bearch_mips.h"
-// #include "sta/bearch_sta.h"
-
+#include "bearch_t.h"
#include "be_t.h"
+#include "bemodule.h"
#include "beutil.h"
#include "benode_t.h"
#include "beirgmod.h"
#include "bestat.h"
#include "beverify.h"
#include "beprofile.h"
-#include "beblocksched.h"
#include "be_dbgout.h"
#ifdef WITH_ILP
BE_TIME_OFF, /* no timing */
0, /* no opt profile */
1, /* try to omit frame pointer */
- 0, /* always stabs debugging output */
+ 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 */
+ "", /* filename for statistic output */
};
/* config file. */
static char config_file[256] = { 0 };
-/* register allocator to use. */
-static const be_ra_t *ra = &be_ra_chordal_allocator;
-
/* back end instruction set architecture to use */
-static const arch_isa_if_t *isa_if = &ia32_isa_if;
-
-#ifdef WITH_LIBCORE
-
-static lc_opt_entry_t *be_grp_root = NULL;
+static const arch_isa_if_t *isa_if = NULL;
/* possible dumping options */
static const lc_opt_enum_mask_items_t dump_items[] = {
{ NULL, 0 }
};
-/* register allocators */
-static const lc_opt_enum_const_ptr_items_t ra_items[] = {
- { "chordal", &be_ra_chordal_allocator },
- { "external", &be_ra_external_allocator },
- { NULL, NULL }
-};
-
-/* instruction set architectures. */
-static const lc_opt_enum_const_ptr_items_t isa_items[] = {
- { "ia32", &ia32_isa_if },
-#if 0
- { "sta", &sta_isa_if },
- { "arm", &arm_isa_if },
- { "ppc32", &ppc32_isa_if },
- { "mips", &mips_isa_if },
-#endif
- { NULL, NULL }
-};
-
/* verify options. */
static const lc_opt_enum_int_items_t vrfy_items[] = {
{ "off", BE_VRFY_OFF },
&be_options.dump_flags, dump_items
};
-static lc_opt_enum_const_ptr_var_t ra_var = {
- (const void **) &ra, ra_items
-};
-
-static lc_opt_enum_const_ptr_var_t isa_var = {
- (const void **) &isa_if, isa_items
-};
-
static lc_opt_enum_int_var_t vrfy_var = {
&be_options.vrfy_option, vrfy_items
};
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_ENUM_PTR ("ra", "register allocator", &ra_var),
- LC_OPT_ENT_ENUM_PTR ("isa", "the instruction set architecture", &isa_var),
LC_OPT_ENT_NEGBOOL ("noomitfp", "do not 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),
{ NULL }
};
-#endif /* WITH_LIBCORE */
+static be_module_list_entry_t *isa_ifs = NULL;
-void be_opt_register(void)
+void be_register_isa_if(const char *name, const arch_isa_if_t *isa)
{
-#ifdef WITH_LIBCORE
- int i;
- lc_opt_entry_t *be_grp_ra;
- static int run_once = 0;
-
- if (! run_once) {
- run_once = 1;
- be_grp_root = lc_opt_get_grp(firm_opt_get_root(), "be");
- be_grp_ra = lc_opt_get_grp(be_grp_root, "ra");
+ if(isa_if == NULL)
+ isa_if = isa;
- lc_opt_add_table(be_grp_root, be_main_options);
+ be_add_module_to_list(&isa_ifs, name, (void*) isa);
+}
- /* register allocator options */
- for(i = 0; ra_items[i].name != NULL; ++i) {
- const be_ra_t *ra = ra_items[i].value;
- ra->register_options(be_grp_ra);
- }
+void be_opt_register(void)
+{
+ lc_opt_entry_t *be_grp;
+ static int run_once = 0;
- /* register isa options */
- for(i = 0; isa_items[i].name != NULL; ++i) {
- const arch_isa_if_t *isa = isa_items[i].value;
- isa->register_options(be_grp_root);
- }
+ if (run_once) {
+ return;
+ }
+ run_once = 1;
- /* list scheduler register options */
- list_sched_register_options(be_grp_root);
+ be_init_modules();
-#ifdef WITH_ILP
- /* ilp scheduler register options */
- ilpsched_register_options(be_grp_root);
-#endif /* WITH_ILP */
+ be_grp = lc_opt_get_grp(firm_opt_get_root(), "be");
+ lc_opt_add_table(be_grp, be_main_options);
- be_block_schedule_register_options(be_grp_root);
- }
-#endif /* WITH_LIBCORE */
+ be_add_module_list_opt(be_grp, "isa", "the instruction set architecture",
+ &isa_ifs, (void**) &isa_if);
}
/* Parse one argument. */
int be_parse_arg(const char *arg) {
-#ifdef WITH_LIBCORE
+ lc_opt_entry_t *be_grp = lc_opt_get_grp(firm_opt_get_root(), "be");
if (strcmp(arg, "help") == 0 || (arg[0] == '?' && arg[1] == '\0')) {
- lc_opt_print_help(be_grp_root, stdout);
+ lc_opt_print_help(be_grp, stdout);
return -1;
}
- return lc_opt_from_single_arg(be_grp_root, NULL, arg, NULL);
-#else
- return 0;
-#endif /* WITH_LIBCORE */
+ return lc_opt_from_single_arg(be_grp, NULL, arg, NULL);
}
/** The be parameters returned by default, all off. */
};
/* 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.");
}
}
const backend_params *be_init(void)
{
be_opt_register();
-
- be_sched_init();
- be_copy_opt_init();
- copystat_init();
- phi_class_init();
+ be_init_modules();
if (isa_if->get_params)
return isa_if->get_params();
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);
/* reset the phi handler. */
be_phi_handler_reset(env->phi_handler);
-}
-#ifdef WITH_LIBCORE
+ set_irg_phase_state(irg, phase_backend);
+}
#define BE_TIMER_PUSH(timer) \
if (be_options.timing == BE_TIME_ON) { \
#define BE_TIMER_ONLY(code) do { if (be_options.timing == BE_TIME_ON) { code; } } while(0)
-#else
-
-#define BE_TIMER_PUSH(timer)
-#define BE_TIMER_POP(timer)
-#define BE_TIMER_ONLY(code)
-
-#endif /* WITH_LIBCORE */
-
-
/**
* The Firm backend main loop.
* Do architecture specific lowering for all graphs
static const char suffix[] = ".prof";
be_irg_t *birgs;
unsigned num_birgs;
+ ir_graph **irg_list, **backend_irg_list;
- be_ra_timer_t *ra_timer;
-
-#ifdef WITH_LIBCORE
lc_timer_t *t_abi = NULL;
lc_timer_t *t_codegen = NULL;
lc_timer_t *t_sched = NULL;
t_verify = lc_timer_register("verify", "graph verification");
t_other = lc_timer_register("other", "other");
}
-#endif /* WITH_LIBCORE */
be_init_env(&env, file_handle);
be_dbg_so(env.db_handle, cup_name);
be_dbg_types(env.db_handle);
+ /* backend may provide an ordered list of irgs where code should be generated for */
+ irg_list = NEW_ARR_F(ir_graph *, 0);
+ backend_irg_list = arch_isa_get_backend_irg_list(isa, &irg_list);
+
/* we might need 1 birg more for instrumentation constructor */
- num_birgs = get_irp_n_irgs();
+ num_birgs = backend_irg_list ? ARR_LEN(backend_irg_list) : get_irp_n_irgs();
birgs = alloca(sizeof(birgs[0]) * (num_birgs + 1));
/* First: initialize all birgs */
- for(i = 0; i < get_irp_n_irgs(); ++i) {
- ir_graph *irg = get_irp_irg(i);
-
+ for(i = 0; i < num_birgs; ++i) {
+ ir_graph *irg = backend_irg_list ? backend_irg_list[i] : get_irp_irg(i);
initialize_birg(&birgs[i], irg, &env);
}
+ DEL_ARR_F(irg_list);
/*
Get the filename for the profiling data.
initialize_birg(&birgs[num_birgs], prof_init_irg, &env);
num_birgs++;
set_method_img_section(get_irg_entity(prof_init_irg), section_constructors);
- }
- else {
+ } else {
be_profile_read(prof_filename);
}
/* For all graphs */
for (i = 0; i < num_birgs; ++i) {
- be_irg_t *birg = & birgs[i];
+ be_irg_t *birg = &birgs[i];
ir_graph *irg = birg->irg;
optimization_state_t state;
const arch_code_generator_if_t *cg_if;
}
BE_TIMER_POP(t_verify);
- /**
- * Create execution frequencies from profile data or estimate some
- */
- if (be_profile_has_data()) {
- birg->exec_freq = be_create_execfreqs_from_profile(irg);
- } else {
- birg->exec_freq = compute_execfreq(irg, 10);
- }
-
BE_TIMER_ONLY(num_nodes_b = get_num_reachable_nodes(irg));
/* Get the code generator interface. */
dump(DUMP_ABI, irg, "-abi", dump_ir_block_graph);
be_do_stat_nodes(irg, "02 Abi");
+ if (be_options.vrfy_option == BE_VRFY_WARN) {
+ be_check_dominance(irg);
+ be_verify_out_edges(irg);
+ } else if (be_options.vrfy_option == BE_VRFY_ASSERT) {
+ assert(be_verify_out_edges(irg));
+ assert(be_check_dominance(irg) && "Dominance verification failed");
+ }
+
/* generate code */
BE_TIMER_PUSH(t_codegen);
arch_code_generator_prepare_graph(birg->cg);
be_do_stat_nodes(irg, "03 Prepare");
- /*
- Since the code generator made a lot of new nodes and skipped
- a lot of old ones, we should do dead node elimination here.
- Note that this requires disabling the edges here.
- */
- edges_deactivate(irg);
- //dead_node_elimination(irg);
- edges_activate(irg);
-
- /* Compute loop nesting information (for weighting copies) */
- construct_cf_backedges(irg);
dump(DUMP_PREPARED, irg, "-prepared", dump_ir_block_graph);
BE_TIMER_ONLY(num_nodes_r = get_num_reachable_nodes(irg));
+ if (be_options.vrfy_option == BE_VRFY_WARN) {
+ be_check_dominance(irg);
+ be_verify_out_edges(irg);
+ } else if (be_options.vrfy_option == BE_VRFY_ASSERT) {
+ assert(be_verify_out_edges(irg));
+ assert(be_check_dominance(irg) && "Dominance verification failed");
+ }
+
+ /**
+ * Create execution frequencies from profile data or estimate some
+ */
+ if (be_profile_has_data()) {
+ birg->exec_freq = be_create_execfreqs_from_profile(irg);
+ } else {
+ birg->exec_freq = compute_execfreq(irg, 10);
+ }
+
/* let backend prepare scheduling */
BE_TIMER_PUSH(t_codegen);
arch_code_generator_before_sched(birg->cg);
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",
/* Do register allocation */
BE_TIMER_PUSH(t_regalloc);
- ra_timer = ra->allocate(birg);
+ be_allocate_registers(birg);
BE_TIMER_POP(t_regalloc);
#ifdef FIRM_STATISTICS
/* fix stack offsets */
BE_TIMER_PUSH(t_abi);
- be_abi_fix_stack_nodes(birg->abi, NULL);
+ be_abi_fix_stack_nodes(birg->abi);
be_remove_dead_nodes_from_schedule(irg);
be_abi_fix_stack_bias(birg->abi);
BE_TIMER_POP(t_abi);
+ dump(DUMP_SCHED, irg, "-fix_stack_after_ra", dump_ir_block_graph_sched);
+
BE_TIMER_PUSH(t_finish);
arch_code_generator_finish(birg->cg);
BE_TIMER_POP(t_finish);
/* check schedule and register allocation */
BE_TIMER_PUSH(t_verify);
if (be_options.vrfy_option == BE_VRFY_WARN) {
- //irg_verify(irg, VRFY_ENFORCE_SSA);
+ 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);
- }
- 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));
+ } 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");
+
}
BE_TIMER_POP(t_verify);
arch_code_generator_done(birg->cg);
BE_TIMER_POP(t_emit);
- dump(DUMP_FINAL, irg, "-end", dump_ir_extblock_graph_sched);
+ dump(DUMP_FINAL, irg, "-end", dump_ir_block_graph_sched);
BE_TIMER_PUSH(t_abi);
be_abi_free(birg->abi);
LC_EMIT(t_sched);
LC_EMIT(t_constr);
LC_EMIT(t_regalloc);
- LC_EMIT_RA(ra_timer->t_prolog);
- LC_EMIT_RA(ra_timer->t_live);
- LC_EMIT_RA(ra_timer->t_spill);
- LC_EMIT_RA(ra_timer->t_spillslots);
- LC_EMIT_RA(ra_timer->t_color);
- LC_EMIT_RA(ra_timer->t_ifg);
- LC_EMIT_RA(ra_timer->t_copymin);
- LC_EMIT_RA(ra_timer->t_ssa);
- LC_EMIT_RA(ra_timer->t_epilog);
- LC_EMIT_RA(ra_timer->t_verify);
- LC_EMIT_RA(ra_timer->t_other);
+ if(global_ra_timer != NULL) {
+ LC_EMIT_RA(global_ra_timer->t_prolog);
+ LC_EMIT_RA(global_ra_timer->t_live);
+ LC_EMIT_RA(global_ra_timer->t_spill);
+ LC_EMIT_RA(global_ra_timer->t_spillslots);
+ LC_EMIT_RA(global_ra_timer->t_color);
+ LC_EMIT_RA(global_ra_timer->t_ifg);
+ LC_EMIT_RA(global_ra_timer->t_copymin);
+ LC_EMIT_RA(global_ra_timer->t_ssa);
+ LC_EMIT_RA(global_ra_timer->t_epilog);
+ LC_EMIT_RA(global_ra_timer->t_verify);
+ LC_EMIT_RA(global_ra_timer->t_other);
+ }
LC_EMIT(t_finish);
LC_EMIT(t_emit);
LC_EMIT(t_verify);
#undef LC_EMIT_RA
#undef LC_EMIT
- free_execfreq(birg->exec_freq);
- birg->exec_freq = NULL;
-
- if(birg->dom_front != NULL) {
- be_free_dominance_frontiers(birg->dom_front);
- birg->dom_front = NULL;
- }
- if(birg->lv != NULL) {
- be_liveness_free(birg->lv);
- birg->lv = NULL;
- }
+ be_free_birg(birg);
/* switched off due to statistics (statistic module needs all irgs) */
+#if 0 /* STA needs irgs */
#ifdef FIRM_STATISTICS
if (! stat_is_active())
-#endif
+#endif /* FIRM_STATISTICS */
free_ir_graph(irg);
-
+#endif /* if 0 */
if(be_stat_ev_is_active()) {
be_stat_ev_pop();
}
/* Main interface to the frontend. */
void be_main(FILE *file_handle, const char *cup_name)
{
-#ifdef WITH_LIBCORE
lc_timer_t *t = NULL;
/* The user specified another config file to read. do that now. */
#ifdef FIRM_STATISTICS
be_init_stat_file(be_options.stat_file_name, cup_name);
#endif
-#endif /* WITH_LIBCORE */
/* never build code for pseudo irgs */
set_visit_pseudo_irgs(0);
be_main_loop(file_handle, cup_name);
-#ifdef WITH_LIBCORE
if (be_options.timing == BE_TIME_ON) {
lc_timer_stop(t);
lc_timer_leave_high_priority();
#ifdef FIRM_STATISTICS
be_close_stat_file();
#endif
-#endif /* WITH_LIBCORE */
}
/** The debug info retriever function. */
return bitset_popcnt(bs);
}
-
-void be_assure_liveness(be_irg_t *birg)
-{
- if(birg->lv != NULL)
- return;
-
- birg->lv = be_liveness(birg->irg);
-}
-
-void be_invalidate_liveness(be_irg_t *birg)
-{
- if(birg->lv == NULL)
- return;
-
- be_liveness_free(birg->lv);
- birg->lv = NULL;
-}
-
-void be_assure_dom_front(be_irg_t *birg)
-{
- if(birg->dom_front != NULL)
- return;
-
- birg->dom_front = be_compute_dominance_frontiers(birg->irg);
-}
-
-void be_invalidate_dom_front(be_irg_t *birg)
-{
- if(birg->dom_front == NULL)
- return;
-
- be_free_dominance_frontiers(birg->dom_front);
- birg->dom_front = NULL;
-}
projects / libfirm / blobdiff