GMP 6.1.2 t-count_zeros failure on ARM with assertions
marc.glisse at inria.fr
Wed Dec 27 17:10:27 UTC 2017
On Wed, 27 Dec 2017, Niels Möller wrote:
> nisse at lysator.liu.se (Niels Möller) writes:
>> Pushed now.
> And below, a patch to delete all mention of COUNT_LEADING_ZEROS_0,
> except for tune/many.pl, which I'm not familiar with. What do you think?
It seems a bit sad to drop this information, in case we want to use it in
the future, or if we want to share the file longlong.h with other
As far as I understand, the issue was an inconsistency between using gcc's
__builtin_clz (instead of some intrinsic or inline asm for the CLZ
instruction) and still defining the macro COUNT_LEADING_ZEROS_0 to 32. I
am not sure that warrants removing all COUNT_LEADING_ZEROS_0 everywhere.
But if we aren't using it at all, I don't have a very strong opinion.
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