[llvm] [Hexagon] Omit calls to specialized {float, fix} routines (PR #117423)

[Brian Cain via llvm-commits]

androm3da wrote:

> LLVM Buildbot has detected a new failure on builder `clang-debian-cpp20` running on `clang-debian-cpp20` while building `llvm` at step 2 "checkout".
> 
> Full details are available at: https://lab.llvm.org/buildbot/#/builders/108/builds/8172
> 
> Here is the relevant piece of the build log for the reference
> ```
> Step 2 (checkout) failure: update (failure)
> ```

This name resolution failure does not appear to be related to the change under test.

```
fatal: unable to access 'https://github.com/llvm/llvm-project.git/': Could not resolve host: github.com
```


https://github.com/llvm/llvm-project/pull/117423