[Mono-bugs] [Bug 440785] New: Mono runtime complains about invalid IL generated by gmcs

bugzilla_noreply at novell.com bugzilla_noreply at novell.com
Fri Oct 31 19:58:34 EDT 2008


           Summary: Mono runtime complains about invalid IL generated by
           Product: Mono: Compilers
           Version: 2.0
          Platform: Other
        OS/Version: Other
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: C#
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: mtraudt at quantifisolutions.com
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---

The code below compiles with gmcs v2.0.1.0 but gets the following runtime error
when run with mono v2.0.1 on OpenSUSE 11:

Unhandled Exception: System.InvalidProgramException: Invalid IL code in
OneOff:Clone (double[]): IL_0078: box       0x1b000001

Exact same exe runs fine with MS CLR 2.0 on Windows, so seems to be less about
the code generated than about the runtime.

using System;

public class OneOff
        public static void Main(string[] args)
    double[] darray = { 1.0, 2.0, 3.0 };
    double[] clone = OneOff.Clone(darray);

  private static T[] Clone<T>(T[] o)
    if (o == null)
      return null;
    Type t = typeof(T);
    if (t.IsValueType)
      return (T[])o.Clone();
    else if (t.IsArray && (t.GetElementType().IsValueType ||
      T[] copy = new T[o.Length];
      for (int i = 0; i < o.Length; i++)
        copy[i] = (T)(o[i] as Array).Clone();
      return copy;
      throw new ArgumentException("oops");

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