[PATCH][aarch64] Document rewriting of -march=native to -mcpu=native

Wed, 17 Jul 2024 23:34:31 -0700 

Hi all,

Commit dd9e5f4db2debf1429feab7f785962ccef6e0dbd changed -march=native to
treat it as -mcpu=native if no other mcpu or mtune option was given.
It would make sense to document this, especially if we try to persuade
compilers like LLVM to take the same approach.
This patch documents that behaviour.

Bootstrapped and tested on aarch64-none-linux-gnu.
Pushing to trunk.
Thanks,
Kyrill

Signed-off-by: Kyrylo Tkachov <ktkac...@nvidia.com>

gcc/ChangeLog:

        * doc/invoke.texi (AArch64 Options): Document rewriting of
        -march=native to -mcpu=native.

Attachment: 0001-aarch64-Document-rewriting-of-march-native-to-mcpu-n.patch
Description: 0001-aarch64-Document-rewriting-of-march-native-to-mcpu-n.patch

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