/**
* Backend driver.
* @author Sebastian Hack
- * @date 25.11.2004
+ * @date 25.11.2004
+ * @cvsid $Id$
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdarg.h>
-#include <mcheck.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 "irdom_t.h"
#include "iredges_t.h"
#include "irloop_t.h"
+#include "irtools.h"
+#include "return.h"
+#include "firmstat.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 "be_t.h"
-#include "bechordal_t.h"
#include "benumb_t.h"
+#include "beutil.h"
+#include "benode_t.h"
+#include "beirgmod.h"
#include "besched_t.h"
#include "belistsched.h"
#include "belive_t.h"
-#include "beutil.h"
-#include "bechordal.h"
-#include "bearch.h"
-#include "becopyoptmain.h"
+#include "bespillbelady.h"
+#include "bera.h"
+#include "beraextern.h"
+#include "bechordal_t.h"
+#include "beifg.h"
+#include "beifg_impl.h"
+#include "becopyopt.h"
#include "becopystat.h"
#include "bessadestr.h"
-#include "bearch_firm.h"
-#include "benode_t.h"
-#include "beirgmod.h"
-#include "bespillilp.h"
-#include "bespillbelady.h"
+#include "beabi.h"
+#include "belower.h"
+#include "beschedmris.h"
+#include "bestat.h"
+#include "beverify.h"
+
+/* options visible for anyone */
+static be_options_t be_options = {
+ DUMP_NONE, /* dump options */
+ BE_TIME_OFF, /* no timing */
+ "i44pc52.info.uni-karlsruhe.de", /* ilp server */
+ "cplex" /* ilp solver */
+};
+
+/* dump flags */
+static unsigned dump_flags = 0;
+
+/* verify options */
+static unsigned vrfy_option = BE_VRFY_WARN;
+
+/* 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;
+
+/* mris option */
+static int be_enable_mris = 0;
+
+#ifdef WITH_LIBCORE
+
+static lc_opt_entry_t *be_grp_root = NULL;
+
+/* possible dumping options */
+static const lc_opt_enum_mask_items_t dump_items[] = {
+ { "none", DUMP_NONE },
+ { "initial", DUMP_INITIAL },
+ { "abi", DUMP_ABI },
+ { "sched", DUMP_SCHED },
+ { "prepared", DUMP_PREPARED },
+ { "regalloc", DUMP_RA },
+ { "final", DUMP_FINAL },
+ { "be", DUMP_BE },
+ { "all", 2 * DUMP_BE - 1 },
+ { 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
+ { "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 },
+ { "warn", BE_VRFY_WARN },
+ { "assert", BE_VRFY_ASSERT },
+ { NULL, 0 }
+};
+
+static lc_opt_enum_mask_var_t dump_var = {
+ &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 = {
+ &vrfy_option, vrfy_items
+};
+
+static const lc_opt_table_entry_t be_main_options[] = {
+ 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_omit_fp),
+ LC_OPT_ENT_BOOL ("mris", "enable mris schedule preparation", &be_enable_mris),
+ LC_OPT_ENT_ENUM_PTR ("vrfy", "verify the backend irg (off, warn, assert)", &vrfy_var),
+ LC_OPT_ENT_BOOL ("time", "get backend timing statistics", &be_options.timing),
+
+#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 }
+};
+
+#endif /* WITH_LIBCORE */
+
+void be_opt_register(void)
+{
+#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");
+
+ lc_opt_add_table(be_grp_root, be_main_options);
+
+ /* 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);
+ }
-#include "beasm_dump_globals.h"
-#include "beasm_asm_gnu.h"
+ /* 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);
+ }
+ }
+#endif /* WITH_LIBCORE */
+}
-#undef DUMP_BEGIN
-#undef DUMP_PREPARED
-#define DUMP_SCHED
-#define DUMP_SPILL
-#undef DUMP_ALLOCATED
-#undef DUMP_COPYMIN
-#undef DUMP_SSADESTR
-#undef DUMP_END
+/* Parse one argument. */
+int be_parse_arg(const char *arg) {
+#ifdef WITH_LIBCORE
+ if (strcmp(arg, "help") == 0 || (arg[0] == '?' && arg[1] == '\0')) {
+ lc_opt_print_help(be_grp_root, stdout);
+ return -1;
+ }
+ return lc_opt_from_single_arg(be_grp_root, NULL, arg, NULL);
+#else
+ return 0;
+#endif /* WITH_LIBCORE */
+}
-#define N_PHASES 256
+/** The be parameters returned by default, all off. */
+const static backend_params be_params = {
+ NULL,
+ NULL,
+ 0,
+ NULL,
+};
+
+/* Perform schedule verification if requested. */
+static void be_sched_vrfy(ir_graph *irg, int vrfy_opt) {
+ if (vrfy_opt == BE_VRFY_WARN) {
+ be_verify_schedule(irg);
+ }
+ else if (vrfy_opt == BE_VRFY_ASSERT) {
+ assert(be_verify_schedule(irg) && "Schedule verification failed.");
+ }
+}
-void be_init(void)
+/* Initialize the Firm backend. Must be run BEFORE init_firm()! */
+const backend_params *be_init(void)
{
+ be_opt_register();
+
be_sched_init();
- be_liveness_init();
be_numbering_init();
- be_ra_chordal_init();
be_copy_opt_init();
copystat_init();
phi_class_init();
+
+ if (isa_if->get_params)
+ return isa_if->get_params();
+ return &be_params;
}
-static be_main_env_t *be_init_env(be_main_env_t *env)
+/**
+ * Initializes the main environment for the backend.
+ *
+ * @param env an empty environment
+ * @param file_handle the file handle where the output will be written to
+ */
+static be_main_env_t *be_init_env(be_main_env_t *env, FILE *file_handle)
{
- const arch_isa_if_t *isa = &firm_isa;
-
- obstack_init(&env->obst);
- env->dbg = firm_dbg_register("be.main");
- firm_dbg_set_mask(env->dbg, SET_LEVEL_1);
-
- env->arch_env = obstack_alloc(&env->obst, sizeof(env->arch_env[0]));
- arch_env_init(env->arch_env, isa);
- env->arch_env->isa->init();
-
- env->node_factory = obstack_alloc(&env->obst, sizeof(*env->node_factory));
- be_node_factory_init(env->node_factory, isa);
-
- arch_env_add_irn_handler(env->arch_env, &firm_irn_handler);
- arch_env_add_irn_handler(env->arch_env,
- be_node_get_irn_handler(env->node_factory));
-
- return env;
+ memset(env, 0, sizeof(*env));
+ obstack_init(&env->obst);
+ env->arch_env = obstack_alloc(&env->obst, sizeof(env->arch_env[0]));
+ env->options = &be_options;
+ env->options->dump_flags = dump_flags;
+ FIRM_DBG_REGISTER(env->dbg, "be.main");
+
+ arch_env_init(env->arch_env, isa_if, file_handle);
+
+ /* Register the irn handler of the architecture */
+ if (arch_isa_get_irn_handler(env->arch_env->isa))
+ arch_env_push_irn_handler(env->arch_env, arch_isa_get_irn_handler(env->arch_env->isa));
+
+ /*
+ * Register the node handler of the back end infrastructure.
+ * This irn handler takes care of the platform independent
+ * spill, reload and perm nodes.
+ */
+ arch_env_push_irn_handler(env->arch_env, &be_node_irn_handler);
+ env->phi_handler = be_phi_handler_new(env->arch_env);
+ arch_env_push_irn_handler(env->arch_env, env->phi_handler);
+
+ return env;
}
-static be_main_session_env_t *
-be_init_session_env(be_main_session_env_t *env,
- be_main_env_t *main_env, ir_graph *irg)
+static void be_done_env(be_main_env_t *env)
{
- env->main_env = main_env;
- env->irg = irg;
-
- return env;
+ env->arch_env->isa->impl->done(env->arch_env->isa);
+ be_phi_handler_free(env->phi_handler);
+ obstack_free(&env->obst, NULL);
}
-static void prepare_graph(be_main_session_env_t *s)
+/**
+ * A wrapper around a firm dumper. Dumps only, if
+ * flags are enabled.
+ *
+ * @param mask a bitmask containing the reason what will be dumped
+ * @param irg the IR graph to dump
+ * @param suffix the suffix for the dumper
+ * @param dumper the dumper to be called
+ */
+static void dump(int mask, ir_graph *irg, const char *suffix,
+ void (*dumper)(ir_graph *, const char *))
{
- /* set the current graph (this is important for several firm functions) */
- current_ir_graph = s->irg;
+ if(dump_flags & mask)
+ be_dump(irg, suffix, dumper);
+}
- /* Let the isa prepare the graph. */
- s->main_env->arch_env->isa->prepare_graph(s->irg);
+/**
+ * Prepare a backend graph for code generation.
+ */
+static void prepare_graph(be_irg_t *birg)
+{
+ ir_graph *irg = birg->irg;
/* Normalize proj nodes. */
- normalize_proj_nodes(s->irg);
+ normalize_proj_nodes(irg);
+
+ /* Make just one return node. */
+ normalize_one_return(irg);
/* Remove critical edges */
- remove_critical_cf_edges(s->irg);
+ remove_critical_cf_edges(irg);
/* Compute the dominance information. */
- free_dom_and_peace(s->irg);
- compute_doms(s->irg);
-
- /* Compute the dominance frontiers */
- s->dom_front = be_compute_dominance_frontiers(s->irg);
+ free_dom(irg);
+ compute_doms(irg);
/* Ensure, that the ir_edges are computed. */
- edges_activate(s->irg);
+ edges_activate(irg);
- /* Compute loop nesting information (for weighting copies) */
- if (get_irg_loopinfo_state(s->irg) != (loopinfo_valid & loopinfo_cf_consistent))
- construct_cf_backedges(s->irg);
+ /* check, if the dominance property is fulfilled. */
+ be_check_dominance(irg);
- be_check_dominance(s->irg);
+ /* reset the phi handler. */
+ be_phi_handler_reset(birg->main_env->phi_handler);
}
-static void be_main_loop(void)
+/**
+ * The Firm backend main loop.
+ * Do architecture specific lowering for all graphs
+ * and call the architecture specific code generator.
+ *
+ * @param file_handle the file handle the output will be written to
+ */
+static void be_main_loop(FILE *file_handle)
{
int i, n;
+ arch_isa_t *isa;
be_main_env_t env;
- const arch_isa_if_t *isa;
+ unsigned num_nodes_b = 0;
+ unsigned num_nodes_a = 0;
+ unsigned num_nodes_r = 0;
+ lc_timer_t *t_prolog, *t_abi, *t_codegen, *t_sched, *t_constr, *t_regalloc, *t_finish, *t_emit, *t_other, *t_verify;
+ be_ra_timer_t *ra_timer;
+
+ if (be_options.timing == BE_TIME_ON) {
+ t_prolog = lc_timer_register("prolog", "prolog");
+ t_abi = lc_timer_register("beabi", "be abi introduction");
+ t_codegen = lc_timer_register("codegen", "codegeneration");
+ t_sched = lc_timer_register("sched", "scheduling");
+ t_constr = lc_timer_register("constr", "assure constraints");
+ t_regalloc = lc_timer_register("regalloc", "register allocation");
+ t_finish = lc_timer_register("finish", "graph finish");
+ t_emit = lc_timer_register("emiter", "code emiter");
+ t_verify = lc_timer_register("verify", "graph verification");
+ t_other = lc_timer_register("other", "other");
+ }
+
+ be_init_env(&env, file_handle);
- be_init_env(&env);
isa = arch_env_get_isa(env.arch_env);
+ /* for debugging, anchors helps */
+ // dump_all_anchors(1);
+
+#define BE_TIMER_PUSH(timer) \
+ if (be_options.timing == BE_TIME_ON) { \
+ int res = lc_timer_push(timer); \
+ if (vrfy_option == BE_VRFY_ASSERT) \
+ assert(res && "Timer already on stack, cannot be pushed twice."); \
+ else if (vrfy_option == BE_VRFY_WARN && ! res) \
+ fprintf(stderr, "Timer %s already on stack, cannot be pushed twice.\n", \
+ lc_timer_get_name(timer)); \
+ }
+#define BE_TIMER_POP(timer) \
+ if (be_options.timing == BE_TIME_ON) { \
+ lc_timer_t *tmp = lc_timer_pop(); \
+ if (vrfy_option == BE_VRFY_ASSERT) \
+ assert(tmp == timer && "Attempt to pop wrong timer."); \
+ else if (vrfy_option == BE_VRFY_WARN && tmp != timer) \
+ fprintf(stderr, "Attempt to pop wrong timer. %s is on stack, trying to pop %s.\n", \
+ lc_timer_get_name(tmp), lc_timer_get_name(timer)); \
+ timer = tmp; \
+ }
+
+#define BE_TIMER_ONLY(code) if (be_options.timing == BE_TIME_ON) do { code; } while(0)
+
/* For all graphs */
- for(i = 0, n = get_irp_n_irgs(); i < n; ++i) {
- int j, m;
+ for (i = 0, n = get_irp_n_irgs(); i < n; ++i) {
ir_graph *irg = get_irp_irg(i);
- be_main_session_env_t session;
+ const arch_code_generator_if_t *cg_if;
+ be_irg_t birg;
+ optimization_state_t state;
+
+ /* stop and reset timers */
+ if (be_options.timing == BE_TIME_ON) {
+ LC_STOP_AND_RESET_TIMER(t_prolog);
+ LC_STOP_AND_RESET_TIMER(t_abi);
+ LC_STOP_AND_RESET_TIMER(t_codegen);
+ LC_STOP_AND_RESET_TIMER(t_sched);
+ LC_STOP_AND_RESET_TIMER(t_constr);
+ LC_STOP_AND_RESET_TIMER(t_regalloc);
+ LC_STOP_AND_RESET_TIMER(t_finish);
+ LC_STOP_AND_RESET_TIMER(t_emit);
+ LC_STOP_AND_RESET_TIMER(t_verify);
+ LC_STOP_AND_RESET_TIMER(t_other);
+ }
+ BE_TIMER_PUSH(t_other); /* t_other */
- DBG((env.dbg, LEVEL_1, "====> IRG: %F\n", irg));
-#ifdef DUMP_BEGIN
- dump_ir_block_graph(irg, "-begin");
-#endif
+ BE_TIMER_ONLY(num_nodes_b = get_num_reachable_nodes(irg));
- /* Init the session. */
- be_init_session_env(&session, &env, irg);
+ birg.irg = irg;
+ birg.main_env = &env;
- /* Compute some analyses and prepare the graph for backend use. */
- prepare_graph(&session);
-#ifdef DUMP_PREPARED
- dump_dominator_information(true);
- dump_ir_block_graph(irg, "-prepared");
- dump_dominator_information(false);
-#endif
+ DBG((env.dbg, LEVEL_2, "====> IRG: %F\n", irg));
+ dump(DUMP_INITIAL, irg, "-begin", dump_ir_block_graph);
- /* Schedule the graphs. */
- list_sched(irg, trivial_selector);
-#ifdef DUMP_SCHED
- dump_ir_block_graph_sched(irg, "-sched");
-#endif
+ BE_TIMER_PUSH(t_prolog);
- /* Verify the schedule */
- sched_verify_irg(irg);
+ be_stat_init_irg(env.arch_env, irg);
+ be_do_stat_nodes(irg, "01 Begin");
- /* Build liveness information */
- be_liveness(irg);
+ /* set the current graph (this is important for several firm functions) */
+ current_ir_graph = birg.irg;
- /* Perform the following for each register class. */
- for(j = 0, m = isa->get_n_reg_class(); j < m; ++j) {
- be_chordal_env_t *chordal_env;
- const arch_register_class_t *cls = isa->get_reg_class(j);
- DBG((env.dbg, LEVEL_1, "----> Reg class: %s\n", cls->name));
+ /* Get the code generator interface. */
+ cg_if = isa->impl->get_code_generator_if(isa);
- /* spilling */
- //be_spill_ilp(&session, cls);
- be_spill_belady(&session, cls);
-#ifdef DUMP_SPILL
- dump_ir_block_graph_sched(session.irg, "-spill");
-#endif
- be_liveness(irg);
- be_numbering(irg);
- be_check_pressure(&session, cls);
+ /* get a code generator for this graph. */
+ birg.cg = cg_if->init(&birg);
-#if 0
- {
- FILE *f;
- char buf[128];
- ir_snprintf(buf, sizeof(buf), "%F_%s-live.txt", irg, cls->name);
- if((f = fopen(buf, "wt")) != NULL) {
- be_liveness_dump(session.irg, f);
- fclose(f);
- }
- }
-#endif
+ /* create the code generator and generate code. */
+ prepare_graph(&birg);
- /* allocation */
- chordal_env = be_ra_chordal(&session, cls);
-#ifdef DUMP_ALLOCATED
- dump_allocated_irg(env.arch_env, irg, "");
-#endif
+ BE_TIMER_POP(t_prolog);
- /* copy minimization */
- copystat_collect_cls(chordal_env);
- be_copy_opt(chordal_env);
-#ifdef DUMP_COPYMIN
- dump_allocated_irg(env.arch_env, irg, "-copymin");
-#endif
+ /* some transformations need to be done before abi introduce */
+ BE_TIMER_PUSH(t_codegen);
+ arch_code_generator_before_abi(birg.cg);
+ BE_TIMER_POP(t_codegen);
- /* ssa destruction */
- be_ssa_destruction(chordal_env);
- be_ssa_destruction_check(chordal_env);
- be_ra_chordal_check(chordal_env);
-#ifdef DUMP_SSADESTR
- dump_allocated_irg(env.arch_env, irg, "-ssadestr");
-#endif
+ /* implement the ABI conventions. */
+ BE_TIMER_PUSH(t_abi);
+ birg.abi = be_abi_introduce(&birg);
+ BE_TIMER_POP(t_abi);
+
+ dump(DUMP_ABI, irg, "-abi", dump_ir_block_graph);
+ be_do_stat_nodes(irg, "02 Abi");
+
+ /* generate code */
+ BE_TIMER_PUSH(t_codegen);
+ arch_code_generator_prepare_graph(birg.cg);
+ BE_TIMER_POP(t_codegen);
- be_ra_chordal_done(chordal_env);
- be_numbering_done(irg);
+ 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));
+
+ /* let backend prepare scheduling */
+ BE_TIMER_PUSH(t_codegen);
+ arch_code_generator_before_sched(birg.cg);
+ BE_TIMER_POP(t_codegen);
+
+ /* schedule the irg */
+ BE_TIMER_PUSH(t_sched);
+ list_sched(&birg, be_enable_mris);
+ BE_TIMER_POP(t_sched);
+
+ dump(DUMP_SCHED, irg, "-sched", dump_ir_block_graph_sched);
+
+ /* check schedule */
+ BE_TIMER_PUSH(t_verify);
+ be_sched_vrfy(birg.irg, vrfy_option);
+ BE_TIMER_POP(t_verify);
+
+ be_do_stat_nodes(irg, "04 Schedule");
+
+ /* introduce patterns to assure constraints */
+ BE_TIMER_PUSH(t_constr);
+ /* we switch off optimizations here, because they might cause trouble */
+ save_optimization_state(&state);
+ set_optimize(0);
+ set_opt_normalize(0);
+
+ /* add Keeps for should_be_different constrained nodes */
+ /* beware: needs schedule due to usage of be_ssa_constr */
+ assure_constraints(&birg);
+ BE_TIMER_POP(t_constr);
+
+ dump(DUMP_SCHED, irg, "-assured", dump_ir_block_graph_sched);
+ be_do_stat_nodes(irg, "05 Constraints");
+
+ /* connect all stack modifying nodes together (see beabi.c) */
+ BE_TIMER_PUSH(t_abi);
+ be_abi_fix_stack_nodes(birg.abi, NULL);
+ 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(birg.irg, 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);
+
+ /* Do register allocation */
+ BE_TIMER_ONLY(lc_timer_start(t_regalloc));
+ ra_timer = ra->allocate(&birg);
+ BE_TIMER_ONLY(lc_timer_stop(t_regalloc));
+
+ dump(DUMP_RA, irg, "-ra", dump_ir_block_graph_sched);
+ be_do_stat_nodes(irg, "06 Register Allocation");
+
+ /* let the codegenerator prepare the graph for emitter */
+ BE_TIMER_PUSH(t_finish);
+ arch_code_generator_after_ra(birg.cg);
+ BE_TIMER_POP(t_finish);
+
+ /* fix stack offsets */
+ BE_TIMER_PUSH(t_abi);
+ be_abi_fix_stack_bias(birg.abi);
+ BE_TIMER_POP(t_abi);
+
+ BE_TIMER_PUSH(t_finish);
+ arch_code_generator_finish(birg.cg);
+ BE_TIMER_POP(t_finish);
+
+ /* check schedule */
+ BE_TIMER_PUSH(t_verify);
+ be_sched_vrfy(birg.irg, vrfy_option);
+ BE_TIMER_POP(t_verify);
+
+ /* emit assembler code */
+ BE_TIMER_PUSH(t_emit);
+ arch_code_generator_done(birg.cg);
+ BE_TIMER_POP(t_emit);
+
+ dump(DUMP_FINAL, irg, "-end", dump_ir_extblock_graph_sched);
+
+ BE_TIMER_PUSH(t_abi);
+ be_abi_free(birg.abi);
+ BE_TIMER_POP(t_abi);
+
+ be_do_stat_nodes(irg, "07 Final");
+ restore_optimization_state(&state);
+
+ BE_TIMER_ONLY(num_nodes_a = get_num_reachable_nodes(irg));
+
+ /* switched off due to statistics (statistic module needs all irgs) */
+ if (! stat_is_active())
+ free_ir_graph(irg);
+
+ BE_TIMER_POP(t_other);
+
+#define LC_EMIT(timer) printf("%-20s: %.3lf msec\n", lc_timer_get_description(timer), (double)lc_timer_elapsed_usec(timer) / 1000.0)
+#define LC_EMIT_RA(timer) printf("\t%-20s: %.3lf msec\n", lc_timer_get_description(timer), (double)lc_timer_elapsed_usec(timer) / 1000.0)
+ if (be_options.timing == BE_TIME_ON) {
+ 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_prolog);
+ LC_EMIT(t_abi);
+ LC_EMIT(t_codegen);
+ 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);
+ LC_EMIT(t_finish);
+ LC_EMIT(t_emit);
+ LC_EMIT(t_verify);
+ LC_EMIT(t_other);
}
-#ifdef DUMP_END
- dump_ir_block_graph_sched(session.irg, "-end");
-#endif
- copystat_dump(irg);
+#undef LC_EMIT
}
+ be_done_env(&env);
+
+#undef BE_TIMER_POP
+#undef BE_TIMER_PUSH
+#undef BE_TIMER_ONLY
}
-void be_main(int argc, const char *argv[])
+/* Main interface to the frontend. */
+void be_main(FILE *file_handle)
{
- assembler_t *gnu_assembler;
- FILE *asm_output_file;
+#ifdef WITH_LIBCORE
+ lc_timer_t *t;
- be_main_loop();
+ if (be_options.timing == BE_TIME_ON) {
+ t = lc_timer_register("bemain", "measure complete bemain loop");
-#if 0
- gnu_assembler = gnuasm_create_assembler();
- asm_output_file = fopen("asm_output.asm", "w");
+ if (lc_timer_enter_high_priority()) {
+ fprintf(stderr, "Warning: Could not enter high priority mode.\n");
+ }
- asm_dump_globals(gnu_assembler);
- gnuasm_dump(gnu_assembler, asm_output_file);
- gnuasm_delete_assembler(gnu_assembler);
- fclose(asm_output_file);
-#endif
+ lc_timer_reset_and_start(t);
+ }
+#endif /* WITH_LIBCORE */
+
+ /* never build code for pseudo irgs */
+ set_visit_pseudo_irgs(0);
+
+ be_node_init();
+ be_main_loop(file_handle);
+
+#ifdef WITH_LIBCORE
+ if (be_options.timing == BE_TIME_ON) {
+ lc_timer_stop(t);
+ lc_timer_leave_high_priority();
+ printf("%-20s: %lu msec\n", "BEMAINLOOP", lc_timer_elapsed_msec(t));
+ }
+#endif /* WITH_LIBCORE */
+}
+
+/** The debug info retriever function. */
+static retrieve_dbg_func retrieve_dbg = NULL;
+
+/* Sets a debug info retriever. */
+void be_set_debug_retrieve(retrieve_dbg_func func) {
+ retrieve_dbg = func;
+}
+
+/* Retrieve the debug info. */
+const char *be_retrieve_dbg_info(const dbg_info *dbg, unsigned *line) {
+ if (retrieve_dbg)
+ return retrieve_dbg(dbg, line);
+ *line = 0;
+ return NULL;
}