ASDF v0.1.5-beta0: new parser is ~40% faster

[Nicholas Wilson]

On Wednesday, 4 October 2017 at 13:15:17 UTC, Ilya Yaroshenko 
wrote:
> On Wednesday, 4 October 2017 at 12:11:54 UTC, Kagamin wrote:
>> On Sunday, 1 October 2017 at 14:38:04 UTC, Ilya Yaroshenko 
>> wrote:
>>> [1] 
>>> https://github.com/tamediadigital/asdf/tree/master/benchmarks/sajson
>>
>> AFAIK, ldc translates dmd's -O option to llvm's -O3.
>
> sajson loops are manually unrolled already. Very aggressive 
> optimisation makes no sense and may unroll loops additionally 
> and slowdown the program.

Any reason clang++ is only -O2, not -O{3,s,z}?