X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbechordal_main.c;h=c44fbe2a103467bdc79c3972be43ac5188455332;hb=a801e68c8aa279117fe7845fb2d4220750131553;hp=7ca168fc363610c0ead00d73b3acb0266f32594e;hpb=cb236b67a1a1976a99827999b12ddb3c2b5023fb;p=libfirm

diff --git a/ir/be/bechordal_main.c b/ir/be/bechordal_main.c
index 7ca168fc3..c44fbe2a1 100644
--- a/ir/be/bechordal_main.c
+++ b/ir/be/bechordal_main.c
@@ -44,14 +44,12 @@
 
 #include "bespillbelady.h"
 #include "bespillilp.h"
+#include "beconstrperm.h"
+#include "belower.h"
 
-#define DO_SSADESTR
-
-#ifdef DO_SSADESTR
+#include "becopyoptmain.h"
 #include "bessadestr.h"
 #include "becopystat.h"
-#include "becopyoptmain.h"
-#endif /* DO_SSADESTR */
 
 
 void be_ra_chordal_check(be_chordal_env_t *chordal_env) {
@@ -81,8 +79,8 @@ void be_ra_chordal_check(be_chordal_env_t *chordal_env) {
 
 		n1_reg = arch_get_irn_register(arch_env, n1);
 		if (!arch_reg_is_allocatable(arch_env, n1, -1, n1_reg)) {
-			DBG((dbg, 0, "Register assigned to %+F is not allowed\n", n1));
-			assert(0 && "Register constraint does not hold");
+			DBG((dbg, 0, "Register %s assigned to %+F is not allowed\n", n1_reg->name, n1));
+//			assert(0 && "Register constraint does not hold");
 		}
 		for (o = i+1, n2 = nodes[o]; n2; n2 = nodes[++o]) {
 			n2_reg = arch_get_irn_register(arch_env, n2);
@@ -160,7 +158,8 @@ static be_ra_chordal_opts_t options = {
 	BE_CH_DUMP_NONE,
 	BE_CH_SPILL_BELADY,
 	BE_CH_COPYMIN_HEUR,
-	BE_CH_IFG_STD
+	BE_CH_IFG_STD,
+	BE_CH_LOWER_PERM_SWAP
 };
 
 #ifdef WITH_LIBCORE
@@ -182,6 +181,12 @@ static const lc_opt_enum_int_items_t ifg_flavor_items[] = {
 	{ NULL, 0 }
 };
 
+static const lc_opt_enum_int_items_t lower_perm_items[] = {
+	{ "swap", BE_CH_LOWER_PERM_SWAP },
+	{ "copy", BE_CH_LOWER_PERM_COPY },
+	{ NULL, 0 }
+};
+
 static lc_opt_enum_int_var_t spill_var = {
 	&options.spill_method, spill_items
 };
@@ -194,6 +199,10 @@ static lc_opt_enum_int_var_t ifg_flavor_var = {
 	&options.spill_method, ifg_flavor_items
 };
 
+static lc_opt_enum_int_var_t lower_perm_var = {
+	&options.lower_perm_method, lower_perm_items
+};
+
 static void be_ra_chordal_register_options(lc_opt_entry_t *grp)
 {
 	lc_opt_entry_t *dump;
@@ -243,8 +252,13 @@ static void be_ra_chordal_main(const be_main_env_t *main_env, ir_graph *irg)
 			fprintf(stderr, "no valid spiller selected. falling back to belady\n");
 			be_spill_belady(&chordal_env);
 		}
-
 		dump(BE_CH_DUMP_SPILL, irg, "-spill", dump_ir_block_graph_sched);
+		be_liveness(irg);
+		be_check_pressure(&chordal_env);
+
+		/* Insert perms before reg-constrained instructions */
+		be_insert_constr_perms(&chordal_env);
+		dump(BE_CH_DUMP_CONSTR, irg, "-constr", dump_ir_block_graph_sched);
 
 		be_liveness(irg);
 		be_numbering(irg);
@@ -255,21 +269,21 @@ static void be_ra_chordal_main(const be_main_env_t *main_env, ir_graph *irg)
 
 		/* Build the interference graph. */
 		chordal_env.ifg = be_ifg_std_new(&chordal_env);
+		be_ifg_check(chordal_env.ifg);
 
-#ifdef DO_SSADESTR
 		/* copy minimization */
 		copystat_collect_cls(&chordal_env);
 		be_copy_opt(&chordal_env);
 		dump(BE_CH_DUMP_COPYMIN, irg, "-copymin", dump_ir_block_graph_sched);
+		be_ra_chordal_check(&chordal_env);
 
 		/* ssa destruction */
 		be_ssa_destruction(&chordal_env);
+		dump(BE_CH_DUMP_SSADESTR, irg, "-ssadestr", dump_ir_block_graph_sched);
 		be_ssa_destruction_check(&chordal_env);
 		be_ra_chordal_check(&chordal_env);
-		dump(BE_CH_DUMP_SSADESTR, irg, "-ssadestr", dump_ir_block_graph_sched);
 
 		copystat_dump(irg);
-#endif /* DO_SSADESTR */
 
 		be_ifg_free(chordal_env.ifg);
 		be_numbering_done(irg);
@@ -277,6 +291,8 @@ static void be_ra_chordal_main(const be_main_env_t *main_env, ir_graph *irg)
 		pmap_destroy(chordal_env.border_heads);
 	}
 
+	lower_perms(&chordal_env, options.lower_perm_method == BE_CH_LOWER_PERM_COPY ? 1 : 0);
+
 	be_free_dominance_frontiers(chordal_env.dom_front);
 	obstack_free(&chordal_env.obst, NULL);
 }