Segfault with DMD optimization switch

[ixid]

On Tuesday, 22 January 2013 at 18:28:08 UTC, Jonathan M Davis 
wrote:
> On Tuesday, January 22, 2013 19:21:33 Stephan wrote:
>> Unfortunately, in my case the code crashed in a position late 
>> in
>> some iteration loop, so I can't easily reproduce it in a simple
>> program to file a bug report.
>
> DustMite might be able to help you reduce your code to a 
> simpler program which
> also has the failure:
>
> https://github.com/CyberShadow/DustMite
>
> - Jonathan M davis

Using DMD 2.061 on Windows XP with VisualD and turning on 
optimization in debug mode, this will throw an exception:

import std.datetime;

void main() {
	StopWatch sw;
	sw.start;
}

What seems to cause it is adding a break point on the last line. 
It exits successfully with code 0 without the break point. This 
just happens to be the minimal case the first program I could 
think of reduces to and still has the issue, I have no idea if 
it's anything to do with std.datetime nor if I am demonstrating 
the same issue, apologies if this is irrelevant.