Re: [boost] [GSOC]SIMD Library

Subject: Re: [boost] [GSOC]SIMD Library
From: Cory Nelson (phrosty_at_[hidden])
Date: 2011-03-30 19:46:30

On Wed, Mar 30, 2011 at 8:16 AM, Mathias Gaunard
<mathias.gaunard_at_[hidden]> wrote:
> On 30/03/2011 15:11, Domagoj Saric wrote:
>
>> ps. does NT2 provide a way to choose/use multiple instruction sets?
>
> Not out of the box.
> What you could do is compile your code several times with different options
> and make each version into a separate dll, then select the right dll to load
> at runtime.

It would be useful if the types chose their instruction set by policy.

template<typename Policy>
void go(float *f)
{
typedef vec4<float, Policy> vec;
...
}

void (*go_ptr)(float*) = go<x87>;

if(supports_sse) go_ptr = go<sse2>;

It would let us handle our own multiple-instruction-sets-in-one-binary
needs at whatever level we deem best.

-- 
Cory Nelson
http://int64.org