Re: x86 memcpy performance

[H. Peter Anvin]

On 08/15/2011 08:36 AM, Andrew Lutomirski wrote:
> 
> (*)  kernel_fpu_begin is a bad name.  It's only safe to use integer
> instructions inside a kernel_fpu_begin section because MXCSR (and the
> 387 equivalent) could contain garbage.
> 

Uh... no, it just means you have to initialize the settings.  It's a
perfectly good name, it's called kernel_fpu_begin, not kernel_fp_begin.

	-hpa


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