ARM Cortex-A7 feature misdetection

Jeffrey Walton noloader at
Tue Feb 6 17:40:40 UTC 2018

On Mon, Feb 5, 2018 at 3:16 AM, Niels Möller <nisse at> wrote:
> Jeffrey Walton <noloader at> writes:
>> I believe ARM AS and LD are not like i386/x86_64 tools. You must
>> explicitly enable the ISA, or it is not available (like shown below).
> What I've done in other neon assembly files is to add a
>   .fpu neon

Thanks Neils.

I was attempting to test this change. It seems mpn/tmp-lshift.s gets
rewritten on each invocation of make so my change gets blown away.

'grep -IR __gmpn_lshift' is only providing hits into the temp file.

How can I test the change?


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