From 1d0076588e6b7ca312ceda5cefd3fadc5a639031 Mon Sep 17 00:00:00 2001
From: Michael Beck <beck@ipd.info.uni-karlsruhe.de>
Date: Mon, 22 Oct 2007 14:14:22 +0000
Subject: [PATCH] beware of loops without Phis

[r16307]
---
 ir/opt/ldstopt.c | 3 +++
 1 file changed, 3 insertions(+)

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;
-- 
2.20.1