From: Matthias Braun <matze@braunis.de>
Date: Wed, 29 Aug 2012 14:18:33 +0000 (+0200)
Subject: fix crash
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=3e8f2f0194240ba72b0367e4d67205aec9d34475;p=libfirm

fix crash
---

diff --git a/ir/opt/combo.c b/ir/opt/combo.c
index 27aa76aba..45f125074 100644
--- a/ir/opt/combo.c
+++ b/ir/opt/combo.c
@@ -606,7 +606,7 @@ static void sort_irn_outs(node_t *node)
 	unsigned n_outs = get_irn_n_outs(irn);
 	qsort(irn->o.out->edges, n_outs, sizeof(irn->o.out->edges[0]),
 		  cmp_def_use_edge);
-	node->max_user_input = irn->o.out->edges[n_outs-1].pos;
+	node->max_user_input = n_outs > 0 ? irn->o.out->edges[n_outs-1].pos : -1;
 }  /* sort_irn_outs */
 
 /**