[PATCH] [POWERPC] Emulate isel (Integer Select) instruction
Geert Uytterhoeven
Geert.Uytterhoeven at sonycom.com
Thu Nov 22 03:50:45 EST 2007
On Wed, 21 Nov 2007, Kumar Gala wrote:
> On Nov 21, 2007, at 7:09 AM, Geert Uytterhoeven wrote:
> > On Tue, 20 Nov 2007, Kumar Gala wrote:
> > > On Nov 20, 2007, at 11:54 AM, Scott Wood wrote:
> > > > Given that the instruction is meant to be a performance enhancement,
> > > > we should probably warn the first few times it's emulated, so the user
> > > > knows they should change their toolchain setup if possible.
> > >
> > > The same is true of mcrxr, popcntb, and possibly string ld/st.
> > >
> > > Feel free to submit a patch that warns about their usage.
>
> How about some per processor counters in sysfs under the processor.
Per processor? That means it has to be per_cpu, which sounds a bit like
overkill to me.
With kind regards,
Geert Uytterhoeven
Software Architect
Sony Network and Software Technology Center Europe
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