blob: 7b0151793b1963009b148e7ea9cef75fee74eb24 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System;
using System.Runtime.CompilerServices;
// This test case is meant to test an optimization in morph that
// transforms helper call JIT_Stelem_Ref(a, null, i) to a[i] = null,
// which further gets transformed into an array address and bounds
// check nodes with references to the array local and the index
// local. It is expected while doing such a transform, array
// local and index local are appropriately ref counted and Value
// number is updated post-global-morph and jit compilation
// won't run into any asserts.
class DevDiv_142976
{
[MethodImpl(MethodImplOptions.NoInlining)]
public static String Foo()
{
return null;
}
[MethodImpl(MethodImplOptions.NoInlining)]
public static void Bar()
{
String[] args = new String[10];
if (args != null)
{
throw new Exception();
}
String s = Foo();
if (s == null)
{
// This will result in JIT_Stelem_Ref(args, null, 0) call
// which gets re-morphed into args[0] = null.
args[0] = s;
}
}
public static int Main()
{
try
{
Bar();
}
catch (Exception)
{
}
Console.WriteLine("Pass");
return 100;
}
}
|
