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SubjectRe: x86-64: memset()/memcpy() not fully standards compliant
On 01/05/2012 10:28 AM, Andi Kleen wrote:
>>
>> Otherwise, is there any rationale for this sort of lurking bug?
>
> Most (all?) of the CPUs I cared about when writing that code had
> bugs with string instructions and >4GB.
>

Is that still true, and do we even use string instructions still on
those old CPUs? Jan's fixes don't introduce any additional delays in
the non-string-instruction paths.

-hpa

--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.



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