[clang] [llvm] [aarch64][clang][llvm] Allow AArch64 TLB maintenance instructions to be enabled via -march (PR #116707)

[Daniel Paoliello via cfe-commits]

dpaoliello wrote:

> `__ARM_FEATURE_*` defines are, as far as I know, supposed to be defined in the ACLE. So there needs to be an issue/PR for the ACLE spec. Once Arm reviews that, we can merge the corresponding patches here.

Ah, interesting, any objection to not adding the detection macros?

https://github.com/llvm/llvm-project/pull/116707