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Re: [PATCH v4] faster strlen on x64


On Wed, Mar 06, 2013 at 02:25:24PM -0800, Richard Henderson wrote:
> On 2013-03-06 13:54, Andreas Jaeger wrote:
> >>+/* Used in linker - use only %xmm8-%xmm15.  */
> >
> >Better expand
> >Say explictely - if it's true: This is used inside the dynamic linker during
> >relocation, thus we cannot touch the usual registers. We can use %xmm8 to %xmm15.
> 
> I did already object to using *any* xmm registers in the dynamic linker.
> 
> I know for a fact that Intel has a __regcall calling convention in
> place that uses all 16 xmm registers for parameter passing.
> 
A press relase introducing it dates 13.2.2013. I moved rtld to separate
patch. 
> 
> r~


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