Here is my test program;

import core.simd;

void main()
{
    byte32 b32;
}

Compiling using DMD on x64 windows 7 (Xeon E5-2630) prints the error message;
------ Build started: Project: dtest, Configuration: Debug x64 ------
Building Debug\dtest.exe...
Error: AVX vector types not supported
Building Debug\dtest.exe failed!

Compiling on debian 7 x64 (Xeon E3-1270v2) with dmd prints this error message;
server:~/d# dmd dtest.d -m64
Error: AVX vector types not supported

Both CPUs do have AVX instruction set;

http://ark.intel.com/products/64593/Intel-Xeon-Processor-E5-2630-15M-Cache-2_30-GHz-7_20-GTs-Intel-QPI

http://ark.intel.com/products/65727/Intel-Xeon-Processor-E3-1270-v2-8M-Cache-3_50-GHz

Thanks for your help!

On 16 May 2014 06:01, flamencofantasy via Digitalmars-d <digitalmars-d@puremagic.com> wrote:
> Here is my test program;
>
> import core.simd;
>
> void main()
> {
>     byte32 b32;
> }
>
> Compiling using DMD on x64 windows 7 (Xeon E5-2630) prints the error
> message;
> ------ Build started: Project: dtest, Configuration: Debug x64 ------
> Building Debug\dtest.exe...
> Error: AVX vector types not supported
> Building Debug\dtest.exe failed!
>
> Compiling on debian 7 x64 (Xeon E3-1270v2) with dmd prints this error
> message;
> server:~/d# dmd dtest.d -m64
> Error: AVX vector types not supported
>
> Both CPUs do have AVX instruction set;
>
> http://ark.intel.com/products/64593/Intel-Xeon-Processor-E5-2630-15M-Cache-2_30-GHz-7_20-GTs-Intel-QPI
>
> http://ark.intel.com/products/65727/Intel-Xeon-Processor-E3-1270-v2-8M-Cache-3_50-GHz
>
> Thanks for your help!

It's not supported by DMD. You need to use GDC or LDC to get the most out of SIMD.