From: Matthias Braun <matze@braunis.de>
Date: Wed, 16 Nov 2011 18:53:10 +0000 (+0100)
Subject: irverify: check that switch_table != NULL
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=35a7482553cc710c2e1de31091a921339398145c;p=libfirm

irverify: check that switch_table != NULL
---

diff --git a/ir/ir/irverify.c b/ir/ir/irverify.c
index 29e28e78b..f59153ec3 100644
--- a/ir/ir/irverify.c
+++ b/ir/ir/irverify.c
@@ -879,12 +879,15 @@ static int verify_node_Cond(const ir_node *n)
 static int verify_switch_table(const ir_node *n)
 {
 	const ir_switch_table *table     = get_Switch_table(n);
-	size_t                 n_entries = ir_switch_table_get_n_entries(table);
 	unsigned               n_outs    = get_Switch_n_outs(n);
 	ir_node               *selector  = get_Switch_selector(n);
 	ir_mode               *mode      = get_irn_mode(selector);
+	size_t                 n_entries;
 	size_t                 e;
 
+	ASSERT_AND_RET(table != NULL, "switch table is NULL", 0);
+
+	n_entries = ir_switch_table_get_n_entries(table);
 	for (e = 0; e < n_entries; ++e) {
 		const ir_switch_table_entry *entry
 			= ir_switch_table_get_entry_const(table, e);