From: Michael Beck <beck@ipd.info.uni-karlsruhe.de>
Date: Thu, 25 Oct 2007 16:25:54 +0000 (+0000)
Subject: bugfix: the Op(Phi,Phi) optimization require both Phis in the same block
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=37e955f158f80e93a20caa15d0df952d60a029c5;p=libfirm

bugfix: the Op(Phi,Phi) optimization require both Phis in the same block

[r16349]
---

diff --git a/ir/ir/iropt.c b/ir/ir/iropt.c
index d12ed01a9..f0dae40a5 100644
--- a/ir/ir/iropt.c
+++ b/ir/ir/iropt.c
@@ -1771,8 +1771,12 @@ static ir_node *apply_binop_on_2_phis(ir_node *a, ir_node *b, tarval *(*eval)(ta
 	void     **res;
 	ir_node  *pred;
 	ir_graph *irg;
-	int      i, n = get_irn_arity(a);
+	int      i, n;
 
+	if (get_nodes_block(a) != get_nodes_block(b))
+      return NULL;
+
+	n = get_irn_arity(a);
 	NEW_ARR_A(void *, res, n);
 
 	for (i = 0; i < n; ++i) {