From: Michael Beck <beck@ipd.info.uni-karlsruhe.de>
Date: Wed, 18 Apr 2007 15:38:26 +0000 (+0000)
Subject: Fixed misplaced assert
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=54d4a6e338344ee3ab159d493af3148bdab33c17;p=libfirm

Fixed misplaced assert

[r13383]
---

diff --git a/ir/ir/irnode_t.h b/ir/ir/irnode_t.h
index 9c7bf41d3..d64f1b49e 100644
--- a/ir/ir/irnode_t.h
+++ b/ir/ir/irnode_t.h
@@ -427,8 +427,12 @@ _get_irn_intra_n(const ir_node *node, int n) {
 	assert(-1 <= n && n < _get_irn_intra_arity(node));
 
 	nn = node->in[n + 1];
-	assert(nn != NULL);
-	if (!nn || (nn->op != op_Id)) return nn;
+	if (nn == NULL) {
+		/* only block inputs are allowed to be NULL */
+		assert(n == -1 && "NULL input of a node");
+		return NULL;
+	}
+	if (nn->op != op_Id) return nn;
 
 	return (node->in[n + 1] = skip_Id(nn));
 }