!!!Please add intrinsics module for DMD DRuntime!!!

Ilya Yaroshenko via Digitalmars-d digitalmars-d at puremagic.com
Tue Nov 22 11:43:14 PST 2016


On Tuesday, 22 November 2016 at 19:29:30 UTC, tsbockman wrote:
> On Tuesday, 22 November 2016 at 19:27:11 UTC, Ilya Yaroshenko 
> wrote:
>> On Tuesday, 22 November 2016 at 18:57:59 UTC, tsbockman wrote:
>>> Your test fails because you aren't actually using 
>>> `core.bitop`. Intrinsics are detected based on fully 
>>> qualified names. As soon as you copy `bsf()` and `bsr()` 
>>> outside of `core.bitop`, the FQN changes and they're not 
>>> intrinsics anymore.
>>
>> Does DMD overrides bodies for bsf and bsr? It would be 
>> surprised to me.
>
> That's how (almost) ALL of the intrinsics in `core.bitop` and 
> `core.math` are supposed to work. If it's not overriding the 
> bodies, that's a bug.

DMD can recognise code patterns and replace them with hardware 
functions. I never seen that it can replace bodies. Why do you 
think it can? Have you disassembler DMD the code with your PR?


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