X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbemain.c;h=82ed7e44a2c2ffe6172b2b176715e3c20e90579f;hb=ad8368234bf59eb46fbc0cfff5b7322a7efac964;hp=e492d4767aceea31a6866ccce5b1383f0e59d910;hpb=d26125ca5720072a4975d37c0a17f7ad6c18de2d;p=libfirm

diff --git a/ir/be/bemain.c b/ir/be/bemain.c
index e492d4767..82ed7e44a 100644
--- a/ir/be/bemain.c
+++ b/ir/be/bemain.c
@@ -3,34 +3,258 @@
  * @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 "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 "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
+#undef DUMP_COPYMIN
+#undef DUMP_SSADESTR
+#undef DUMP_END
+
+#define N_PHASES 256
 
 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;
+
+  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);
+
+        /* 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
+
 
-		list_sched(irg, trivial_selector, NULL);
+#if 0
+#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);
+		be_sched_imm(irg);
+
+#ifdef DUMP_SCHED
+		dump_ir_block_graph_sched(irg, "-sched");
+#endif
+
+		/* 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);
+#endif /* if 0 */
 	}
 }
 
 void be_main(int argc, const char *argv[])
 {
-	be_main_loop();
+  FILE *asm_output_file;
+
+  be_main_loop();
+
+  asm_output_file = fopen(argv[0], "w");
+  firmbe_gen_code(asm_output_file);
+  fclose(asm_output_file);
 }