Re: [PATCH] ntdll/tests: Add RtlQueryPerformanceCounter tests.

[Rémi Bernon]

On 3/18/21 4:07 PM, Jacek Caban wrote:
> Hi Rémi,
>
> On 17.03.2021 10:31, Rémi Bernon wrote:
> > +#ifndef _MSVC_VER
> > +static UINT64 __umulh(UINT64 a, UINT64 b)
> > +{
> > +    UINT64 ah = a >> 32, al = (UINT32)a, bh = b >> 32, bl = 
> > (UINT32)b, m;
> > +    m = (ah * bl) + (bh * al) + ((al * bl) >> 32);
> > +    return (ah * bh) + (m >> 32);
> > +}
> > +#endif
>
> I think you meant _MSC_VER here and it's not available for 32-bit 
> targets anyway. You could just rename the helper to avoid the collision 
> instead.
>
> Jacek

Indeed thanks, I was happy to use the new intrinsic when available. I 
guess we can very well do without it ;)