diff --git a/ICSharpCode.Decompiler/Ast/Transforms/AddCheckedBlocks.cs b/ICSharpCode.Decompiler/Ast/Transforms/AddCheckedBlocks.cs
index 21638c0b4..ade17ffc0 100644
--- a/ICSharpCode.Decompiler/Ast/Transforms/AddCheckedBlocks.cs
+++ b/ICSharpCode.Decompiler/Ast/Transforms/AddCheckedBlocks.cs
@@ -339,7 +339,7 @@ namespace ICSharpCode.Decompiler.Ast.Transforms
 							result.NodesToInsertInCheckedContext = result.NodesToInsertInUncheckedContext + new ConvertCompoundAssignment(expr, false);
 						}
 					}
-				} else {
+				} else if (expr.Role.IsValid(Expression.Null)) {
 					// We use '<' so that expressions are introduced on the deepest level possible (goal 3)
 					if (result.CostInCheckedContext + new Cost(0, 1) < result.CostInUncheckedContext) {
 						result.CostInUncheckedContext = result.CostInCheckedContext + new Cost(0, 1);
diff --git a/ICSharpCode.Decompiler/ILAst/TypeAnalysis.cs b/ICSharpCode.Decompiler/ILAst/TypeAnalysis.cs
index 967a3e338..de7d2be9a 100644
--- a/ICSharpCode.Decompiler/ILAst/TypeAnalysis.cs
+++ b/ICSharpCode.Decompiler/ILAst/TypeAnalysis.cs
@@ -916,14 +916,12 @@ namespace ICSharpCode.Decompiler.ILAst
 			}
 			GenericParameter gp = type as GenericParameter;
 			if (gp != null) {
-				if (gp.Owner.GenericParameterType == GenericParameterType.Method) {
+				if (member.DeclaringType is ArrayType) {
+					return ((ArrayType)member.DeclaringType).ElementType;
+				} else if (gp.Owner.GenericParameterType == GenericParameterType.Method) {
 					return ((GenericInstanceMethod)member).GenericArguments[gp.Position];
-				} else {
-					if (member.DeclaringType is ArrayType) {
-						return ((ArrayType)member.DeclaringType).ElementType;
-					} else {
-						return ((GenericInstanceType)member.DeclaringType).GenericArguments[gp.Position];
-					}
+				} else  {
+					return ((GenericInstanceType)member.DeclaringType).GenericArguments[gp.Position];
 				}
 			}
 			return type;
diff --git a/ICSharpCode.Decompiler/Tests/CheckedUnchecked.cs b/ICSharpCode.Decompiler/Tests/CheckedUnchecked.cs
index 08c5b39a3..fd1c4d89f 100644
--- a/ICSharpCode.Decompiler/Tests/CheckedUnchecked.cs
+++ b/ICSharpCode.Decompiler/Tests/CheckedUnchecked.cs
@@ -16,6 +16,8 @@
 // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 // DEALINGS IN THE SOFTWARE.
 
+using System;
+
 public class CheckedUnchecked
 {
 	public int Operators(int a, int b)
@@ -63,4 +65,53 @@ public class CheckedUnchecked
 			}
 		}
 	}
+	public void ObjectCreationInitializerChecked() 
+	{
+		this.TestHelp(new
+		{
+			x = 0,
+			l = 0
+		}, n => checked(new
+		{
+			x = n.x + 1, 
+			l = n.l + 1
+		}));
+	}
+
+	public void ObjectCreationWithOneFieldChecked() 
+	{
+		this.TestHelp(new 
+		{
+			x = 0,
+			l = 0
+		}, n => new 
+		{
+			x = checked(n.x + 1), 
+			l = n.l + 1 
+		});
+	}
+
+	
+	public void ArrayInitializerChecked() 
+	{
+		this.TestHelp<int[]>(new int[]
+		{
+			1,
+			2
+		}, (int[] n) => checked(new int[]
+		{
+			n[0] + 1,
+			n[1] + 1
+		}));
+	}
+
+	public T TestHelp<T>(T t, Func<T, T> f)
+	{
+		return f(t);
+	}
+	
+	public void CheckedInArrayCreationArgument(int a, int b)
+	{
+		Console.WriteLine(new int[checked(a + b)]);
+	}
 }
diff --git a/ICSharpCode.Decompiler/Tests/Generics.cs b/ICSharpCode.Decompiler/Tests/Generics.cs
index 9b7bd3fea..5adb934c6 100644
--- a/ICSharpCode.Decompiler/Tests/Generics.cs
+++ b/ICSharpCode.Decompiler/Tests/Generics.cs
@@ -97,6 +97,11 @@ public static class Generics
 	{
 	}
 	
+	private static void MultidimensionalArray<T>(T[,] array)
+	{
+		array[0, 0] = array[0, 1];
+	}
+
 	public static Dictionary<string, string>.KeyCollection.Enumerator GetEnumerator(Dictionary<string, string> d, Generics.MyArray<string>.NestedClass<int> nc)
 	{
 		// Tests references to inner classes in generic classes