[llvm-branch-commits] [clang] [llvm] release/18.x: [AArch64] Backport Ampere1B support (#81297 , #81341, and #81744) (PR #81857)

[Philipp Tomsich via llvm-branch-commits]

ptomsich wrote:

> This is a fairly big patch to backport. The ampere1b changes should be safe enough considering as it just adds support for an extra CPU. There is also the change from #78027 added for changing how PAUTH is enabled.

We can drop the dependency on #78027, if we modify the ampere1b enablement to explicitly add the PAUTH as part of the change in `llvm/include/llvm/TargetParser/AArch64TargetParser.h`; however this would make the change on the release/18.x branch have the extra PAUTH and not be a straight cherry-pick.  Our rationale (so far) has been to include the dependency to make sure that this become a pure cherry-pick.

https://github.com/llvm/llvm-project/pull/81857