On Wed, 29 Mar 2023, 10:01 Валерий Заподовников, <[email protected]>
wrote:

> "armv9-a" That is not what M2 is. It is only ARMv8.5-A (actually ARMv8.6
> just without SM4). Indeed, see https://reviews.llvm.org/D134351
>
> "(thanks Apple for stealing the name)" They did not steal anything, llvm
> has permissive license.
>

GPL, what GNU Compiler Collection, a.k.a. gcc, is using, is not a very
permissive licence, unlike MIT one. But this is beside my point.

When I say "they stole the name gcc" I mean that they caused an endless
amount of, unnecessary otherwise, coding in installation scripts, to try to
sort out whether this gcc is real gcc, or clang.

Because they are not  100% compatible, this is needed, unfortunately.

Apple caused more grief to the GCC project and developers of maths soft on
Apple  than just this, but, again, it's beside my point.


Intel compiler also nowadays uses it.
>
> "any standard way to find that out by some command or whatever for a later
> documentation" march=native with clang
>
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