dmd 2.063 generated code a lot slower then dmd 2.062

[Benjamin Thaut]

Am 14.10.2013 09:24, schrieb Benjamin Thaut:
>
> I actually found it. I havily use core.sys.windows.stacktrace in my code
> and I did make some modifications on my druntime branch which I
> accidentially reverted when merging in druntime 2.063.2
> These changes make stacktracing on windows faster by a factor of 10.
> Thats why I see such a performance impact with dmd 2.063
>

https://github.com/D-Programming-Language/druntime/pull/638