X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbecopyheur.c;h=2bda705c26bb2b1d78dec6adfa73b75ae8b99a02;hb=8544304305897e5f2b5752fc243fd45c4f95a38c;hp=1dfb38f878367304eaaba3e1dcd432aaa3a7a2af;hpb=719b0dc8377fc55decc4629bf5e523104a82b76f;p=libfirm

diff --git a/ir/be/becopyheur.c b/ir/be/becopyheur.c
index 1dfb38f87..2bda705c2 100644
--- a/ir/be/becopyheur.c
+++ b/ir/be/becopyheur.c
@@ -29,7 +29,7 @@
 #include "becopystat.h"
 #include "bitset.h"
 
-static firm_dbg_module_t *dbg = NULL;
+DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
 
 #define SEARCH_FREE_COLORS
 
@@ -455,7 +455,7 @@ static INLINE qnode_t *new_qnode(const unit_t *ou, int color) {
 	qnode_t *qn = xmalloc(sizeof(*qn));
 	qn->ou = ou;
 	qn->color = color;
-	qn->mis = malloc(ou->node_count * sizeof(*qn->mis));
+	qn->mis = xmalloc(ou->node_count * sizeof(*qn->mis));
 	qn->conflicts = new_set(set_cmp_conflict_t, SLOTS_CONFLICTS);
 	qn->changed_nodes = new_set(set_cmp_node_stat_t, SLOTS_CHANGED_NODES);
 	return qn;
@@ -525,6 +525,8 @@ static void ou_optimize(unit_t *ou) {
 	arch_put_non_ignore_regs(aenv, cls, ign_regs);
 	bitset_and(pos_regs, ign_regs);
 
+	assert(bitset_popcnt(pos_regs) != 0 && "No register is allowed for this node !!?");
+
 	/* create new qnode */
 	bitset_foreach(pos_regs, i)
 		ou_insert_qnode(ou, new_qnode(ou, i));
@@ -578,7 +580,9 @@ static void ou_optimize(unit_t *ou) {
 
 int co_solve_heuristic(copy_opt_t *co) {
 	unit_t *curr;
-	dbg = firm_dbg_register("ir.be.copyoptheur");
+	FIRM_DBG_REGISTER(dbg, "ir.be.copyoptheur");
+
+	ASSERT_OU_AVAIL(co);
 
 	pinned_global = pset_new_ptr(SLOTS_PINNED_GLOBAL);
 	list_for_each_entry(unit_t, curr, &co->units, units)