[clang] [Clang][SME2] Add single and multi min and max builtins (PR #71688)

[Nikita Popov via cfe-commits]

nikic wrote:

FYI I pushed https://github.com/llvm/llvm-project/commit/3a9cc17ca088267348e4b4a6e64a88a38ae9c6e4 to hopefully unbreak the build.

https://github.com/llvm/llvm-project/pull/71688