Re: [Valgrind-developers] Re: [Valgrind-users] Need testers for MMX support

[Arnaud D. <arn...@ge...>]

Hi,

That's all excellent news. Another small self-contained code is
Wolfgang Suttrop's data acquisition benchmark
(http://www.ipp.mpg.de/~Wolfgang.Suttrop/daq/dabench/)
It builds easily and triggers a valgrind fault:

<quote>
disInstr: unhandled 2-byte opcode: 0x71 0xF0 0x4
This _might_ be the result of executing a SSE, SSE2 or 3DNow!
instruction.  Valgrind does not currently support such instructions.  Sorry.
</quote>

I haven't found that many freely available codes that use MMX
instructions except within large libraries such as gmp. However,
using gcc 3.2's "mmintrin.h", it shouldn't be too difficult to write
some test cases.

Regards,


----- Original Message -----
From: "Julian Seward" <js...@ac...>
To: "Arnaud Desitter" <arn...@ge...>;
<val...@li...>
Sent: Sunday, March 30, 2003 12:31 PM
Subject: Re: [Valgrind-developers] Re: [Valgrind-users] Need testers for MMX
support


>
> Yes, irred was a good test case, and shook out various bugs and
> missing insns.  I now believe the head should run most MMX code OK,
> and I've taught the memcheck (default) skin how to instrument MMX
> code, so "valgrind ./my_mmx_program" should work.
>
> J
>
> On Thursday 27 March 2003 11:59 am, Arnaud Desitter wrote:
> > Hi,
> >
> > I do not have much time as the moment to test it myself
> > but Richard Brent's irred should be a good test case, small
> > and simple.
> > http://web.comlab.ox.ac.uk/oucl/work/richard.brent/irred.html
> >
> > Regards,
> >