blob: 2d4b5f6aeac0dcaee17fced43607b2da3e89087a (
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
57
58
59
60
|
// 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.InteropServices;
// Test includes an intentional unreachable return
#pragma warning disable 162
namespace PInvokeTest
{
internal class Test
{
[DllImport("msvcrt", EntryPoint = "sin")]
private static extern double sin(double x);
private static double g;
private static bool b;
public static int Main(string[] args)
{
bool result = false;
g = 0.0;
double val = 1.0;
b = false;
try
{
Func(val);
}
catch(Exception)
{
result = (Math.Abs(g - sin(val)) < 0.0001);
}
return (result ? 100 : -1);
}
// An inline pinvoke in a method with float math followed by a
// throw may causes trouble for liveness models for the inline
// frame var.
static double Func(double x)
{
g = sin(x);
// A bit of control flow to throw off rareness detection
// Also we need float in here
if (b)
{
g = 0.0;
}
throw new Exception();
// Deliberately unreachable return
return g;
}
}
}
|
