* @author Sebastian Hack
* @date 25.11.2004
*/
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
-#include "besched.h"
+#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 "bechordal_t.h"
+#include "benumb_t.h"
+#include "besched_t.h"
#include "belistsched.h"
#include "belive_t.h"
-#include "belive.h"
-#include "bephicongr_t.h"
+#include "beutil.h"
+#include "bechordal.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 "phistat.h"
+#include "beasm_dump_globals.h"
+#include "beasm_asm_gnu.h"
+
+#undef DUMP_BEGIN
+#undef DUMP_PREPARED
+#define DUMP_SCHED
+#define DUMP_SPILL
+#undef DUMP_ALLOCATED
+#undef DUMP_COPYMIN
+#undef DUMP_SSADESTR
+#undef DUMP_END
+
+#define N_PHASES 256
void be_init(void)
{
be_sched_init();
be_liveness_init();
- be_phi_congr_class_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;
+
+ 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;
+}
+
+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)
+{
+ env->main_env = main_env;
+ env->irg = irg;
+
+ return env;
+}
+
+static void prepare_graph(be_main_session_env_t *s)
+{
+ /* set the current graph (this is important for several firm functions) */
+ current_ir_graph = s->irg;
+
+ /* Let the isa prepare the graph. */
+ s->main_env->arch_env->isa->prepare_graph(s->irg);
+
+ /* Normalize proj nodes. */
+ normalize_proj_nodes(s->irg);
+
+ /* Remove critical edges */
+ remove_critical_cf_edges(s->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);
+
+ /* Ensure, that the ir_edges are computed. */
+ edges_activate(s->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);
+
+ be_check_dominance(s->irg);
}
static void be_main_loop(void)
{
int i, n;
+ be_main_env_t env;
+ const arch_isa_if_t *isa;
+ be_init_env(&env);
+ isa = arch_env_get_isa(env.arch_env);
+
+ /* 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_1, "====> 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);
+#ifdef DUMP_PREPARED
+ dump_dominator_information(true);
+ dump_ir_block_graph(irg, "-prepared");
+ dump_dominator_information(false);
+#endif
+
+ /* Schedule the graphs. */
+ list_sched(irg, trivial_selector);
+#ifdef DUMP_SCHED
+ dump_ir_block_graph_sched(irg, "-sched");
+#endif
- list_sched(irg, trivial_selector, NULL);
+ /* Verify the schedule */
+ sched_verify_irg(irg);
+
+ /* Build liveness information */
be_liveness(irg);
- be_sched_dump(stdout, irg);
- be_liveness_dump(stdout, 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));
+
+ /* 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(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
+
+ /* 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 DUMP_END
+ dump_ir_block_graph_sched(session.irg, "-end");
+#endif
+ copystat_dump(irg);
}
}
void be_main(int argc, const char *argv[])
{
+ assembler_t *gnu_assembler;
+ FILE *asm_output_file;
+
be_main_loop();
- /* next line only for statistics */
- do_phi_statistics();
+
+#if 0
+ gnu_assembler = gnuasm_create_assembler();
+ asm_output_file = fopen("asm_output.asm", "w");
+
+ asm_dump_globals(gnu_assembler);
+ gnuasm_dump(gnu_assembler, asm_output_file);
+ gnuasm_delete_assembler(gnu_assembler);
+ fclose(asm_output_file);
+#endif
}