From: Michael Beck <beck@ipd.info.uni-karlsruhe.de>
Date: Mon, 29 Nov 2004 10:48:50 +0000 (+0000)
Subject: needed is_Bad check
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=de7273208025747b993d8f74463ac7ee2ba993f8;p=libfirm

needed is_Bad check

[r4490]
---

diff --git a/ir/ir/iropt.c b/ir/ir/iropt.c
index 60ad50ea6..ce100503c 100644
--- a/ir/ir/iropt.c
+++ b/ir/ir/iropt.c
@@ -97,7 +97,7 @@ static tarval *computed_value_Sub(ir_node *n)
   tarval *tb;
 
   /* a - a */
-  if (a == b)
+  if (a == b && !is_Bad(a))
     return get_tarval_null(get_irn_mode(n));
 
   ta = value_of(a);