From ba009e790dc03b83456c18a1f715bd54294b5e28 Mon Sep 17 00:00:00 2001
From: Daniel Grunwald <daniel@danielgrunwald.de>
Date: Thu, 28 Sep 2017 21:52:17 +0200
Subject: [PATCH] Fix #880: NullReferenceException in NullableLiftingTransform.

---
 .../IL/Transforms/NullableLiftingTransform.cs                   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ICSharpCode.Decompiler/IL/Transforms/NullableLiftingTransform.cs b/ICSharpCode.Decompiler/IL/Transforms/NullableLiftingTransform.cs
index 9e703791c..bf8508303 100644
--- a/ICSharpCode.Decompiler/IL/Transforms/NullableLiftingTransform.cs
+++ b/ICSharpCode.Decompiler/IL/Transforms/NullableLiftingTransform.cs
@@ -547,7 +547,7 @@ namespace ICSharpCode.Decompiler.IL.Transforms
 				} else {
 					return (null, null);
 				}
-				if (!newBits.All(0, nullableVars.Count)) {
+				if (newBits == null || !newBits.All(0, nullableVars.Count)) {
 					// all nullable vars must be involved when calling a method (side effect)
 					return (null, null);
 				}