Re: Fast array copy. SIMD manual or automatic?

[fra via Digitalmars-d-learn]

On Saturday, 7 February 2015 at 06:30:32 UTC, tcak wrote:
I have two char arrays at the size of 16KB. I will copy a part 
of data between them again and again.

arrayA[0 .. dataLen] = arrayB[0 .. dataLen];


Does the compiler generate code that uses SIMD operations 
(128-bits memory copy) automatically, or do I need to do 
anything special for this?

Does SIMD even matter anything when it comes to copying? I was 
sure it was just about moving data into SIMD registers for later 
operation on that.