[llvm] r300960 - use repmovsb when optimizing forminsize

[Joerg Sonnenberger via llvm-commits]

On Fri, Apr 21, 2017 at 09:20:55AM -0000, Clement Courbet via llvm-commits wrote:
> Author: courbet
> Date: Fri Apr 21 04:20:55 2017
> New Revision: 300960
> 
> URL: http://llvm.org/viewvc/llvm-project?rev=300960&view=rev
> Log:
> use repmovsb when optimizing forminsize

I'd prefer to still use movsl if no left-over exist. Does is there any
performance disadvantage to keep using the larger strides when the
size is divisible?

Joerg