[swift-users] Need help with compile times (type inference?)

[David Turnbull]

Awesome! Any attention is appreciated.

I tried the 3.0-dev snapshot from yesterday. The ortho example is slower
than 2.2-dev which is slower than 2.1.

If you get compiler crashes, comment out the any() and all() functions. I
opened a bug on this.
https://bugs.swift.org/browse/SR-622

If I can help, please let me know.

-david

On Mon, Jan 25, 2016 at 10:49 AM, Joe Pamer <jpamer at apple.com> wrote:

> Thanks for sharing, David!
>
> As JoeG mentions below, I’ve been rolling out a series of major
> improvements in this area. I’ll take a look at SwiftGL to see what else can
> be done.
>
> - Joe
>
> On Jan 25, 2016, at 12:59 AM, David Turnbull via swift-users <
> swift-users at swift.org> wrote:
>
> On Sun, Jan 24, 2016 at 9:55 PM, Chris Lattner <clattner at apple.com> wrote:
>
>> Are you willing/able to share the code for your project?  That definitely
>> sounds strange,
>>
>
> Soitenly: https://github.com/AE9RB/SwiftGL
>
> The 28,000 lines of loader code are fine. The 6,000 lines of math
> libraries are the problem.
>
> I'm sure it's something to do with prototypes and generics. You can change
> in Types.swift:
> public protocol FloatingPointScalarType : ScalarType
> to:
> public protocol FloatingPointScalarType : ScalarType, FloatingPointType
> and make the problem a bit worse. This is something I'd actually like to
> use, except I don't because a few "where constraints" do what I need
> without the build slowdown.
>
> Swift 2.1 or 2.2-dev doesn't make a difference. The C++ compiler I bench
> against is also llvm. The compiled binaries are truly fast (with WMO). It's
> only the development process that's too slow because of build times.
>
> -David "nyuk nyuk nyuk" Turnbull
>
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>
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