[Bug target/70133] AArch64 -mtune=native generates improperly formatted -march parameters

[clyon at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70133

--- Comment #6 from Christophe Lyon <clyon at gcc dot gnu.org> ---

> 3) We should think about whether we need to put out these +no extension
> strings at all. I don't like that for my older systems I'll need to keep
> updating my binutils to cover any new extension strings (e.g. +nolse) that
> are added by GCC if I want to use -march=native . We shouldn't force that if
> we don't have to.
> 

Do you know why these +no where introduced in the first place?

Why would there be a difference between "+nolse" and "" for instance?