What are the general thoughts on the support for 32bit on OS X? Do we need to continue support it or can it be dropped? I know that we agreed that the Objective-C support should only be implemented for 64bit.

I have implemented native TLS for DMD on OS X 64bit. Does it need to work on 32bit as well? If not, should it use the existing emulated TLS or can we drop it completely?

-- 
/Jacob Carlborg


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On 1/10/2016 8:30 AM, Jacob Carlborg via dmd-internals wrote:
> What are the general thoughts on the support for 32bit on OS X? Do we need to continue support it or can it be dropped? I know that we agreed that the Objective-C support should only be implemented for 64bit.
>
> I have implemented native TLS for DMD on OS X 64bit. Does it need to work on 32bit as well? If not, should it use the existing emulated TLS or can we drop it completely?
>

Should ask in the n.g. if there's anyone using it.
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Asking on the ng is a good idea. I'm a bit concerned about iOS. My understanding is iOS is a pared-down OSX/32, is that right? If that's the case, if we choose to neglect/drop OSX/32, we're creating difficulties for ourselves later.

I just saw http://arstechnica.com/apple/2015/07/the-state-of-the-64-bit-transition-in-ios-and-whats-left-to-be-done/, so apparently we're at the tail end of iOS/32?


Andrei

On 1/10/16 11:30 AM, Jacob Carlborg via dmd-internals wrote:
> What are the general thoughts on the support for 32bit on OS X? Do we need to continue support it or can it be dropped? I know that we agreed that the Objective-C support should only be implemented for 64bit.
>
> I have implemented native TLS for DMD on OS X 64bit. Does it need to work on 32bit as well? If not, should it use the existing emulated TLS or can we drop it completely?
>
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Le 10 janv. 2016 à 12:31, Andrei Alexandrescu via dmd-internals <dmd-internals@puremagic.com> a écrit :
> 
> Asking on the ng is a good idea. I'm a bit concerned about iOS. My understanding is iOS is a pared-down OSX/32, is that right? If that's the case, if we choose to neglect/drop OSX/32, we're creating difficulties for ourselves later.
> 
> I just saw http://arstechnica.com/apple/2015/07/the-state-of-the-64-bit-transition-in-ios-and-whats-left-to-be-done/, so apparently we're at the tail end of iOS/32?

Apple stopped selling 32-bit iOS devices in 2015. There is still a lot of 32-bit devices out there that are still supported by the newest OS, including my 2011 iPad 2. Developers can ship 64-bit only apps today if they want, the App Store allows that.

... and then came the Apple Watch which is 32-bit and runs watchOS, a pared-down down iOS.

-- 
Michel Fortin
https://michelf.ca


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Don’t think my replay got sent to the mailing list, sending again.

> On 10 jan 2016, at 18:31, Andrei Alexandrescu <andrei@erdani.com> wrote:
> 
> Asking on the ng is a good idea. I'm a bit concerned about iOS. My understanding is iOS is a pared-down OSX/32, is that right?

Yes.

> If that's the case, if we choose to neglect/drop OSX/32, we're creating difficulties for ourselves later.

iOS 32it doesn’t support native TLS. DMD doesn’t support ARM. I don’t think it’s a big issue.

Would it be ok to continue use emulated TLS for 32bit? Otherwise I think there's just some minor issue with the instructions generated to access a TLS variable. Perhaps someone that actually knows how DMD works could help out.
-- 
/Jacob Carlborg
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