Re: [PATCH] rs6000: Improve .machine

[Sebastian Huber <sebastian.huber@embedded-brains.de>]

Hello Segher,

On 10/03/2022 11:11, Segher Boessenkool wrote:
> 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.

now that the PR104829 is fixed could I back port

Segher Boessenkool (2):
   rs6000: Improve .machine
   rs6000: Do not use rs6000_cpu for .machine ppc and ppc64 (PR104829)

to GCC 10 and 11?

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