[clang-tools-extra] [clang] [llvm] [Clang] Fix linker error for function multiversioning (PR #71706)

[Tom Honermann via cfe-commits]

================
@@ -555,6 +555,7 @@ Bug Fixes in This Version
   Fixes (`#67687 <https://github.com/llvm/llvm-project/issues/67687>`_)
 - Fix crash from constexpr evaluator evaluating uninitialized arrays as rvalue.
   Fixes (`#67317 <https://github.com/llvm/llvm-project/issues/67317>`_)
+- Fix linker error when using multiversioned function defined in a different TU.
----------------
tahonermann wrote:

```suggestion
- Fix the name of the ifunc symbol emitted for multiversion functions declared with the
  ``target_clones`` attribute. This addresses a linker error that would otherwise occur
  when these functions are referenced from other TUs.
```

https://github.com/llvm/llvm-project/pull/71706