Performance dmd vs ldc2

John Colvin john.loughran.colvin at
Wed Jul 24 06:12:45 PDT 2013

On Wednesday, 24 July 2013 at 12:49:50 UTC, Chris wrote:
> On Wednesday, 24 July 2013 at 12:11:50 UTC, bearophile wrote:
>> Chris:
>>> ldmd2 compiles the code much faster than ldc2 (~4 secs vs 14 
>>> secs). The program runs just as fast (as far as I can see at 
>>> the moment).
>> The ldmd2 binary is tiny, it's not a compiler, it's just a 
>> wrapper. If the compilation time is different then they are 
>> can calling the compiler with different compilation switches.
>> Bye,
>> bearophile
> Thanks for clarifying that. I am still impressed with the 
> performance. Although I'm sure I could squeeze a bit more out 
> of dmd. As of now I'm only using the garden-variety (i.e. dmd 
> -release [files]). I didn't use any switches with ldc2, though.

try dmd -release -noboundscheck -O -inline [files]
and the same for ldmd

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