https://bugs.kde.org/show_bug.cgi?id=521413

--- Comment #11 from Martin Cermak <[email protected]> ---
Created attachment 195639
  --> https://bugs.kde.org/attachment.cgi?id=195639&action=edit
proposed patch

(In reply to Martin Cermak from comment #10)
> > The special case for
> >   dis_PCMPISTRI_3A is commented out and not implemented. I am not sure
> >   I am following that case in the amd64 code either. Could you explain?
> 
> Explained in previous comment I believe.  Trying to address that...
> 
> I'm working with attached WIP patch.  It is a straightforward analogy of
> the amd64 dis_PCMPISTRI_3A(). But it is missing implementation of
> Iop_GetMSBs8x16 in host_x86_isel.c and I'm not there yet:
> 

Instead of implementing Iop_GetMSBs8x16() at the x86 instructions
generation time, the attached patch uses existing Iop_GetMSBs8x8()
at the VEX IR generation time.

This seems to test fine using the testcase provided in bug 309921.
Note that this testcase isn't part of the testsuite yet.

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