Hi!

On Thu, Mar 10, 2022 at 09:25:21AM +0100, Sebastian Huber wrote:
> On 04/03/2022 17:51, Segher Boessenkool wrote:
> >This adds more correct .machine for most older CPUs.  It should be
> >conservative in the sense that everything we handled before we handle at
> >least as well now.  This does not yet revamp the server CPU handling, it
> >is too risky at this point in time.
> >
> >Tested on powerpc64-linux {-m32,-m64}.  Also manually tested with all
> >-mcpu=, and the output of that passed through the GNU assembler.
> >
> >I plan to commit this later today.
> 
> Could this be back ported to GCC 10 and 11? I would fix the following 
> issue for -mcpu=405:
> 
> Error: unrecognized opcode: `dlmzb.'

Good to hear!

Unfortunately there is PR104829 about this commit.  I don't see how the
commit can break anything (that wasn't already broken); it's not clear
how it happens at all, and neither me nor colleagues could reproduce it
so far.

So I won't yet backport it, but first wait what happens here.

Thanks for the report,


Segher

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