DConf 2014 Keynote: High Performance Code Using D by Walter Bright
dennis luehring via Digitalmars-d-announce
digitalmars-d-announce at puremagic.com
Thu Jul 17 21:40:53 PDT 2014
Am 18.07.2014 04:52, schrieb Walter Bright:
> On 7/16/2014 7:21 AM, dennis luehring wrote:
>> can you give an short (working) example code to show the different resulting
>> assembler for your for-rewrite example - and what compilers your using for
>> testing - only dmd or gdc?
>
> I used dmd.
>
i sometimes got the feeling that you underestimate the sheer power of
todays clang or gcc optimizers - so partly what gdc/ldc can do with your
code
reminds me of brian schotts exmaple of his sse2 optimized version of his
lexer - the dmd generated was much faster then the normal version, but
gdc/ldc results of the unoptimized versions are still 50% faster
i understand your focus on dmd - but talking about fast code and
optimizing WITHOUT even trying to compare with other compiler results is
just a little bit strange for someone who stated speed = money
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