"dmd -O" does not support Mir Algorithm

[Ilya Yaroshenko]

On Monday, 30 October 2017 at 08:34:16 UTC, bauss wrote:
> On Monday, 30 October 2017 at 05:48:16 UTC, Ilya Yaroshenko 
> wrote:
>> Hi,
>>
>> I added unittest-release builds into Travis. LDC works well 
>> but DMD fails in few places.
>>
>> One DMD bug was filled [1]. I will explore others when this is 
>> fixed. Please use only LDC for builds with O flag for now.
>>
>> [1] https://issues.dlang.org/show_bug.cgi?id=17943
>>
>> Best regards,
>> Ilya
>
> Can't seem to reproduce this: http://rextester.com/SXR47957

It is not always reproducible. It fails for me on OSX for old 
2.072 too. Looks like it depends on how DMD was configured and 
compiled.