From: Michael Beck <beck@ipd.info.uni-karlsruhe.de>
Date: Mon, 22 Oct 2007 14:14:22 +0000 (+0000)
Subject: beware of loops without Phis
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=1d0076588e6b7ca312ceda5cefd3fadc5a639031;p=libfirm

beware of loops without Phis

[r16307]
---

diff --git a/ir/opt/ldstopt.c b/ir/opt/ldstopt.c
index b660daaa6..00fa55049 100644
--- a/ir/opt/ldstopt.c
+++ b/ir/opt/ldstopt.c
@@ -1334,6 +1334,9 @@ static void move_loads_in_loops(scc *pscc, loop_env *env) {
 			}
 		}
 	}
+	/* no Phis no fun */
+	if (phi_list == NULL)
+		return;
 
 	for (load = pscc->head; load; load = next) {
 		ir_mode *load_mode;