X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;ds=sidebyside;f=ir%2Fbe%2Fbemain.c;h=05e8fae8bd5ae2df97dd2bb31ba13a245d89f7a4;hb=5c1057c78bd79c19bb1b93015ef3963c43700bf2;hp=4bf3d84af41697cc71e636f31c9063351ffb3dd2;hpb=bcc833dc5af6200acf4928e4a4044384fbf3155e;p=libfirm

diff --git a/ir/be/bemain.c b/ir/be/bemain.c
index 4bf3d84af..05e8fae8b 100644
--- a/ir/be/bemain.c
+++ b/ir/be/bemain.c
@@ -3,40 +3,208 @@
  * @author Sebastian Hack
  * @date 25.11.2004
  */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
 
-#include "besched.h"
+#include <stdarg.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 "bedupl.h"
+
+#include "beasm_dump_globals.h"
+#include "beasm_asm_gnu.h"
+
+#undef DUMP_ALLOCATED
+
+#define N_PHASES 256
 
-#include "phistat.h"
 
 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();
+}
+
+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->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)
+{
+	/*
+	 * Duplicate consts in each block
+	 * (This is just for the firm dummy backend)
+	 */
+	// localize_consts(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_assure(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);
+
+	dump_dominator_information(true);
+	dump_ir_block_graph(s->irg, "-prepared");
+	dump_dominator_information(false);
 }
 
 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;
+
+		/* Init the session. */
+		be_init_session_env(&session, &env, irg);
 
-		list_sched(irg, trivial_selector, NULL);
+		/* Compute some analyses and prepare the graph for backend use. */
+		prepare_graph(&session);
+
+		/* Schedule the graphs. */
+		list_sched(irg, trivial_selector);
+
+		/* Verify the schedule */
+		sched_verify_irg(irg);
+
+		/* Remove all cases where a phi and one of its arguments interfere */
+		be_eliminate_phi_interferences(&session);
+		dump_ir_block_graph(session.irg, "-prephase");
+
+		be_numbering(irg);
+
+		/* Liveness analysis */
 		be_liveness(irg);
 
-		be_sched_dump(stdout, irg);
-		be_liveness_dump(stdout, irg);
+		dump_ir_block_graph_sched(irg, "-sched");
+
+		copystat_reset();
+		copystat_collect_irg(irg, env.arch_env);
+
+    /*
+     * Spilling changed the liveness information.
+     * Recompute it now.
+     */
+    be_liveness(irg);
+
+    /*
+     * Verifying the schedule once again cannot hurt.
+     */
+    sched_verify_irg(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);
+
+			chordal_env = be_ra_chordal(irg, env.arch_env, cls);
+
+#ifdef DUMP_ALLOCATED
+			dump_allocated_irg(env.arch_env, irg, "");
+#endif
+			copystat_collect_cls(chordal_env);
+
+			be_copy_opt(chordal_env);
+
+			be_ssa_destruction(&session, chordal_env);
+			be_ssa_destruction_check(&session, chordal_env);
+			be_ra_chordal_check(chordal_env);
+
+			be_ra_chordal_done(chordal_env);
+		}
+
+		copystat_dump_pretty(irg);
+    be_numbering_done(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();
+	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);
 }