VB -> C#: Descending loop broken

[hex64dbg]

Input code

Sub PrintLoop(startIndex As Integer, endIndex As Integer, [step] As Integer)
  For i As Integer = startIndex To endIndex Step [step]
    Debug.WriteLine(i)
  Next
End Sub

'Ascending
PrintLoop(0, 2, 1) 'Prints 0, 1, 2
	
'Descending
PrintLoop(2, 0, -1) 'Prints 2, 1, 0

Erroneous output

public void PrintLoop(int startIndex, int endIndex, int step)
{
    for (int i = startIndex; i <= endIndex; i += step)
        Debug.WriteLine(i);
}

PrintLoop(0, 2, 1); // Prints 0, 1, 2
PrintLoop(2, 0, -1); // Prints nothing

I think this should work :

Expected output

public void PrintLoop(int startIndex, int endIndex, int step)
{
    for (int i = startIndex; (step >=0) ? i <= endIndex : i>=endIndex ; i += step)
        Debug.WriteLine(i);
}

EDIT 9 dec : I changed the expected output.

[GrahamTheCoder]

Thanks for raising this. Seems like a sensible solution. We can use semanticModel.GetConstantValue to check if the conditional can be optimised away at conversion time.

[Saibamen]

Please retest with latest release