From: Christoph Mallon <christoph.mallon@gmx.de>
Date: Wed, 24 May 2006 16:15:59 +0000 (+0000)
Subject: Avoid endless recursion while walking to a projX in a loop
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=9b2a2164abf78dad99dc2b0371c9e6a728d333b0;p=libfirm

Avoid endless recursion while walking to a projX in a loop

[r7799]
---

diff --git a/ir/opt/ifconv.c b/ir/opt/ifconv.c
index b7aa9c662..ff4764f1e 100644
--- a/ir/opt/ifconv.c
+++ b/ir/opt/ifconv.c
@@ -83,6 +83,11 @@ static ir_node* walk_to_projx(ir_node* start, const ir_node* dependency)
 			return pred;
 		}
 
+		if (is_Proj(pred)) {
+			assert(get_irn_mode(pred) == mode_X);
+			return NULL;
+		}
+
 		if (is_cdep_on(pred_block, dependency)) {
 			return walk_to_projx(pred_block, dependency);
 		}