Ami-zhang 5a1b9896ad [LoongArch] Support -march=la64v1.0 and -march=la64v1.1 (#100057) ...

The newly added strings `la64v1.0` and `la64v1.1` in `-march` are as
described in LoongArch toolchains conventions (see [1]).

The target-cpu/feature attributes are forwarded to compiler when
specifying particular `-march` parameter. The default cpu `loongarch64`
is returned when archname is `la64v1.0` or `la64v1.1`.

In addition, this commit adds `la64v1.0`/`la64v1.1` to
"__loongarch_arch" and adds definition for macro "__loongarch_frecipe".

[1]: https://github.com/loongson/la-toolchain-conventions

2024-07-23 14:03:28 +08:00

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