#endif
#include <stdarg.h>
+#include <mcheck.h>
#include "obst.h"
#include "bitset.h"
#include "irprog.h"
+#include "irgopt.h"
#include "irgraph.h"
#include "irdump.h"
#include "phiclass.h"
+#include "irdom_t.h"
+#include "iredges_t.h"
+#include "irloop_t.h"
#include "be_t.h"
-#include "bera_t.h"
+#include "bechordal_t.h"
#include "benumb_t.h"
#include "besched_t.h"
#include "belistsched.h"
#include "bearch.h"
#include "becopyoptmain.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 "beasm_dump_globals.h"
#include "beasm_asm_gnu.h"
+#include "firm2arch.h"
+
+#undef DUMP_BEGIN
+#undef DUMP_PREPARED
+#define DUMP_TRANSFORM
+#define DUMP_SCHED
+#define DUMP_SPILL
#undef DUMP_ALLOCATED
-#define DUMP_LOCALIZED
+#undef DUMP_COPYMIN
+#undef DUMP_SSADESTR
+#undef DUMP_END
#define N_PHASES 256
-typedef struct _be_graph_info_t {
- bitset_t *applied_phases;
-} be_graph_info_t;
+void be_init(void)
+{
+ be_sched_init();
+ be_liveness_init();
+ be_numbering_init();
+ be_ra_chordal_init();
+ be_copy_opt_init();
+ copystat_init();
+ phi_class_init();
+}
+
+static be_main_env_t *be_init_env(be_main_env_t *env)
+{
+ const arch_isa_if_t *isa = &firm_isa;
-static size_t be_info_offset = 0;
+ obstack_init(&env->obst);
+ env->dbg = firm_dbg_register("be.main");
+ firm_dbg_set_mask(env->dbg, SET_LEVEL_1);
-#define get_irg_be_info(irg) get_irg_data(irg, be_graph_info_t, be_info_offset)
+ env->arch_env = obstack_alloc(&env->obst, sizeof(env->arch_env[0]));
+ arch_env_init(env->arch_env, isa);
+ env->arch_env->isa->init();
-static int phase_ids = 1;
-static struct obstack obst;
+ env->node_factory = obstack_alloc(&env->obst, sizeof(*env->node_factory));
+ be_node_factory_init(env->node_factory, isa);
-int phase_register(phase_t *phase)
-{
- phase->id = phase_ids;
- return phase_ids++;
+ 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;
}
-void phase_applied(const ir_graph *irg, const phase_t *phase)
+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)
{
- be_graph_info_t *info = get_irg_be_info(irg);
+ env->main_env = main_env;
+ env->irg = irg;
- if(!info->applied_phases)
- info->applied_phases = bitset_obstack_alloc(&obst, N_PHASES);
-
- bitset_set(info->applied_phases, phase->id);
+ return env;
}
-int phase_depends_on(const ir_graph *irg, const phase_t *phase, int n, ...)
+static void prepare_graph(be_main_session_env_t *s)
{
- int errors = 0;
- int i;
- va_list args;
-
- if(n > 0) {
- const be_graph_info_t *info = get_irg_be_info(irg);
- const bitset_t *applied_phases = info->applied_phases;
+ /* set the current graph (this is important for several firm functions) */
+ current_ir_graph = s->irg;
- va_start(args, n);
+ /* Let the isa prepare the graph. */
+ s->main_env->arch_env->isa->prepare_graph(s->irg);
- for(i = 0; i < n; ++i) {
- const phase_t *dep_phase = va_arg(args, const phase_t *);
+ /* Normalize proj nodes. */
+ normalize_proj_nodes(s->irg);
- if(!applied_phases || !bitset_is_set(applied_phases, dep_phase->id)) {
- errors++;
- fprintf(stderr, "phase dependency unfulfilled: \"%s\" depends on \"%s\"\n",
- phase->name, dep_phase->name);
- }
- }
+ /* Remove critical edges */
+ remove_critical_cf_edges(s->irg);
- va_end(args);
+ /* Compute the dominance information. */
+ free_dom_and_peace(s->irg);
+ compute_doms(s->irg);
- assert(errors > 0 && "There were phase dependency errors");
- }
+ /* Compute the dominance frontiers */
+ s->dom_front = be_compute_dominance_frontiers(s->irg);
- return errors;
-}
+ /* Ensure, that the ir_edges are computed. */
+ edges_activate(s->irg);
-void be_init(void)
-{
- obstack_init(&obst);
- be_info_offset = register_additional_graph_data(sizeof(be_graph_info_t));
+ /* Compute loop nesting information (for weighting copies) */
+ if (get_irg_loopinfo_state(s->irg) != (loopinfo_valid & loopinfo_cf_consistent))
+ construct_cf_backedges(s->irg);
- be_sched_init();
- be_liveness_init();
- be_numbering_init();
- be_ra_init();
- be_ra_chordal_init();
-#ifdef DO_STAT
- stat_init();
-#endif
- be_copy_opt_init();
+ be_check_dominance(s->irg);
}
-/* The preliminary Firm backend isa. */
-extern arch_isa_if_t arch_isa_if_firm;
-
static void be_main_loop(void)
{
int i, n;
- const arch_isa_if_t *isa = &arch_isa_if_firm;
+ be_main_env_t env;
+ const arch_isa_if_t *isa;
+
+ be_init_env(&env);
+ isa = arch_env_get_isa(env.arch_env);
+ /* create required irop's */
+ create_bearch_asm_opcodes();
+
+ /* For all graphs */
for(i = 0, n = get_irp_n_irgs(); i < n; ++i) {
int j, m;
ir_graph *irg = get_irp_irg(i);
+ be_main_session_env_t session;
+
+ DBG((env.dbg, LEVEL_2, "====> IRG: %F\n", irg));
+#ifdef DUMP_BEGIN
+ dump_ir_block_graph(irg, "-begin");
+#endif
+
+ /* Init the session. */
+ be_init_session_env(&session, &env, irg);
+
+ /* Compute some analyses and prepare the graph for backend use. */
+ prepare_graph(&session);
+
+ transform_firm(irg);
+
+#ifdef DUMP_TRANSFORM
+ dump_ir_block_graph(irg, "-transformed");
+#endif
+
- localize_consts(irg);
-#ifdef DUMP_LOCALIZED
- dump_consts_local(0);
- dump_ir_block_graph(irg, "-local-const");
+#if 0
+#ifdef DUMP_PREPARED
+ dump_dominator_information(true);
+ dump_ir_block_graph(irg, "-prepared");
+ dump_dominator_information(false);
#endif
- be_numbering(irg);
/* Schedule the graphs. */
list_sched(irg, trivial_selector);
+ be_sched_imm(irg);
- /* Liveness analysis */
+#ifdef DUMP_SCHED
+ dump_ir_block_graph_sched(irg, "-sched");
+#endif
+
+ /* Verify the schedule */
+ sched_verify_irg(irg);
+
+ /* Build liveness information */
be_liveness(irg);
-#ifdef DO_STAT
- stat_reset();
- stat_collect_irg(irg);
-#endif
/* 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));
- be_ra_chordal(irg, isa, cls);
+ /* 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);
+
+#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
+ /* allocation */
+ chordal_env = be_ra_chordal(&session, cls);
#ifdef DUMP_ALLOCATED
- dump_allocated_irg(irg, "");
+ dump_allocated_irg(env.arch_env, irg, "");
+#endif
+
+ /* copy minimization */
+ copystat_collect_cls(chordal_env);
+ be_copy_opt(chordal_env);
+#ifdef DUMP_COPYMIN
+ dump_allocated_irg(env.arch_env, irg, "-copymin");
#endif
- be_copy_opt(irg, isa, cls);
- be_ra_chordal_done(irg);
+
+ /* 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
+
+ be_ra_chordal_done(chordal_env);
+ be_numbering_done(irg);
}
-#ifdef DO_STAT
- stat_dump(irg);
+#ifdef DUMP_END
+ dump_ir_block_graph_sched(session.irg, "-end");
#endif
- be_numbering_done(irg);
+ copystat_dump(irg);
+#endif /* if 0 */
}
}
void be_main(int argc, const char *argv[])
{
- assembler_t *gnu_assembler;
- FILE *asm_output_file;
+ FILE *asm_output_file;
- be_main_loop();
- gnu_assembler = gnuasm_create_assembler();
- asm_output_file = fopen("asm_output.asm", "w");
+ be_main_loop();
- asm_dump_globals(gnu_assembler);
- gnuasm_dump(gnu_assembler, asm_output_file);
- gnuasm_delete_assembler(gnu_assembler);
- fclose(asm_output_file);
+ asm_output_file = fopen(argv[0], "w");
+ firmbe_gen_code(asm_output_file);
+ fclose(asm_output_file);
}
projects / libfirm / blobdiff