X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbecopyilp.c;h=d7cf202c4fece77b0a39462f79dd3e18c81e3002;hb=31a94f37b692bfab97bebf48ba6d667c16956835;hp=646b6c98d1576952acc419c1237a078f56a3a58a;hpb=b6de8e65b56fb153061505d65d10548f40daf8f5;p=libfirm

diff --git a/ir/be/becopyilp.c b/ir/be/becopyilp.c
index 646b6c98d..d7cf202c4 100644
--- a/ir/be/becopyilp.c
+++ b/ir/be/becopyilp.c
@@ -165,28 +165,57 @@ void sr_remove(size_red_t *sr)
 void sr_reinsert(size_red_t *sr)
 {
 	coloring_suffix_t *cs;
+	ir_graph *irg        = sr->co->irg;
 	be_ifg_t *ifg        = sr->co->cenv->ifg;
-	bitset_t *used_cols  = bitset_alloca(arch_register_class_n_regs(sr->co->cls));
+	unsigned  n_regs     = arch_register_class_n_regs(sr->co->cls);
+	unsigned *possible_cols;
+	unsigned *allocatable_cols;
+
+	rbitset_alloca(allocatable_cols, n_regs);
+	be_set_allocatable_regs(irg, sr->co->cls, allocatable_cols);
+
+	rbitset_alloca(possible_cols, n_regs);
 	neighbours_iter_t iter;
 
 	/* color the removed nodes in right order */
 	for (cs = sr->col_suff; cs; cs = cs->next) {
-		int free_col;
-		ir_node *other, *irn;
+		unsigned free_col;
+		ir_node *other;
+		ir_node *irn = cs->irn;
 
-		/* get free color by inspecting all neighbors */
-		irn = cs->irn;
-		bitset_clear_all(used_cols);
+		rbitset_copy(possible_cols, allocatable_cols, n_regs);
 
+		/* get free color by inspecting all neighbors */
 		be_ifg_foreach_neighbour(ifg, &iter, irn, other) {
-			if (!sr_is_removed(sr, other)) /* only inspect nodes which are in graph right now */
-				bitset_set(used_cols, get_irn_col(other));
+			const arch_register_req_t *cur_req;
+			unsigned cur_col;
+
+			/* only inspect nodes which are in graph right now */
+			if (sr_is_removed(sr, other))
+				continue;
+
+			cur_req = arch_get_irn_register_req(other);
+			cur_col = get_irn_col(other);
+
+			/* Invalidate all single size register when it is a large one */
+			do  {
+				rbitset_clear(possible_cols, cur_col);
+				++cur_col;
+			} while ((cur_col % cur_req->width) != 0);
 		}
 
 		/* now all bits not set are possible colors */
-		free_col = bitset_next_clear(used_cols, 0);
-		assert(free_col != -1 && "No free color found. This can not be.");
-		set_irn_col(sr->co, irn, free_col);
+		/* take one that matches the alignment constraint */
+		free_col = 0;
+		assert(!rbitset_is_empty(possible_cols, n_regs) && "No free color found. This can not be.");
+		while (true) {
+			free_col = (unsigned)rbitset_next(possible_cols, free_col, true);
+			if (free_col % arch_get_irn_register_req(irn)->width == 0)
+				break;
+			++free_col;
+			assert(free_col < n_regs);
+		}
+		set_irn_col(sr->co->cls, irn, free_col);
 		pset_remove_ptr(sr->all_removed, irn); /* irn is back in graph again */
 	}
 }
@@ -225,8 +254,7 @@ ilp_env_t *new_ilp_env(copy_opt_t *co, ilp_callback build, ilp_callback apply, v
 
 lpp_sol_state_t ilp_go(ilp_env_t *ienv)
 {
-	ir_graph     *irg     = ienv->co->irg;
-	be_options_t *options = be_get_irg_options(irg);
+	ir_graph *irg = ienv->co->irg;
 
 	sr_remove(ienv->sr);
 
@@ -250,7 +278,7 @@ lpp_sol_state_t ilp_go(ilp_env_t *ienv)
 	if (solve_log)
 		lpp_set_log(ienv->lp, stdout);
 
-	lpp_solve(ienv->lp, options->ilp_server, options->ilp_solver);
+	lpp_solve(ienv->lp, be_options.ilp_server, be_options.ilp_solver);
 
 	//be_stat_ev_dbl("co_ilp_objval",     ienv->lp->objval);
 	//be_stat_ev_dbl("co_ilp_best_bound", ienv->lp->best_bound);