dmd makes D appear slow

[ketmar via Digitalmars-d]

On Fri, 29 May 2015 23:29:39 +0000, weaselcat wrote:

> On Friday, 29 May 2015 at 23:19:36 UTC, ketmar wrote:
>> On Fri, 29 May 2015 20:02:47 +0000, Martin Krejcirik wrote:
>>
>>> dmd
>>>    - reference compiler, Digital Mars backend - best for
>>> latest dlang
>>>    features, fast compile times
>>> 
>>> gdc
>>>    - GNU gcc backend based compiler - best for portability and
>>>    compatibility with gnu tools
>>> 
>>> ldc
>>>    - LLVM backend based compiler - best for optimized builds,
>>> best
>>>    runtime speed
>>
>> does LDC really surpasses GDC in generated code speed?
> 
> yes GDC is 2-3x slower than LDC on this bench for example. I think it's
> because of a lack of cross module inlining.

thanks for the info.
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