Messages in this thread | | | Date | Thu, 05 Jan 2012 15:22:52 -0800 | From | "H. Peter Anvin" <> | Subject | Re: x86-64: memset()/memcpy() not fully standards compliant |
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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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