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Re: [Qemu-ppc] [Qemu-devel] Incorrect handling of PPC64 rldcl insn

From: Alexander Graf
Subject: Re: [Qemu-ppc] [Qemu-devel] Incorrect handling of PPC64 rldcl insn
Date: Tue, 7 May 2013 00:14:47 +0200

On 06.05.2013, at 20:13, Torbjorn Granlund wrote:

> Alexander Graf <address@hidden> writes:
>  Thanks a lot for the bug report and test case! Please CC qemu-ppc
>  whenever you find issues or have patches for PPC. That makes filtering
>  for important mails a lot easier.
> Would that make my complaints be considered more or less important?  :-)
>  Does the patch below fix the issue for you?
> It indeed does.  (I actually tried that already, but I cannot follow the
> data flow into these functions, so cannot tell if that patch is
> sufficient.  

Yes, it is. It's a leftover bug from converting the code to TCG I assume.

> This bug indicates complete non-testing status of these
> insns, which are mainstream enough to be generated by gcc.  I suppose
> there will likely be more such fundamental errors if more instructions
> are also completely untested.)

There's a certain chance that happens, yes. We don't have instruction test 
suites for the PPC target.


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