From e1738566c21ff4e25d184d7dd6b6f31dc7718be8 Mon Sep 17 00:00:00 2001
From: =?utf8?q?G=C3=B6tz=20Lindenmaier?= <goetz@ipd.info.uni-karlsruhe.de>
Date: Thu, 31 Oct 2002 12:55:36 +0000
Subject: [PATCH] Added assertion for korrect use of link field.

[r507]
---
 ir/ir/irnode.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ir/ir/irnode.c b/ir/ir/irnode.c
index 5195ae6f9..04725b6a0 100644
--- a/ir/ir/irnode.c
+++ b/ir/ir/irnode.c
@@ -393,6 +393,10 @@ irn_visited  (ir_node *node) {
 INLINE void
 set_irn_link (ir_node *node, void *link) {
   assert (node);
+  /* Link field is used for Phi construction and various optimizations
+     in iropt. */
+  assert(get_irg_phase_state(current_ir_graph) != phase_building);
+
   node->link = link;
 }
 
-- 
2.20.1