• tcak (6/6) Feb 06 2015 I have two char arrays at the size of 16KB. I will copy a part of
• fra (4/10) Feb 08 2015 Does SIMD even matter anything when it comes to copying? I was

"tcak" <tcak gmail.com> writes:

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?

"fra" <a b.it> writes:

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.