Move to macos-14

[lucteo]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.41%. Comparing base (75409c7) to head (b5bf648).
Report is 107 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1697      +/-   ##
==========================================
+ Coverage   88.39%   88.41%   +0.01%     
==========================================
  Files         382      382              
  Lines       31592    31592              
==========================================
+ Hits        27927    27931       +4     
+ Misses       3665     3661       -4     

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[dabrahams]

I tried brew install zstd there but it was already installed. Very mysterious why it thinks the archive is invalid! We could update https://github.com/hylo-lang/llvm-build to macos14 and see if the results are more usable, but that seems like a WAG.

[dabrahams]

The place to make this work is on the Swifty-LLVM repo, where CI cycle times are much better.

[dabrahams]

It's possible you need to install gnu tar with brew. Just another WAG

[lucteo]

The build failures seem to come from the fact that, changing the triple suffix (new: apple-darwin24.1.0), we don't have a corresponding archive in https://github.com/hylo-lang/llvm-build/releases/

[dabrahams]

@lucteo I think this PR is obsolete now? Or at least, the CI portion of it is.

[lucteo]

@lucteo I think this PR is obsolete now? Or at least, the CI portion of it is.

Parts of it are obsolete, but I still need to make sure that the OSes we run here are the same as we use in LLVM-build. I do have patches for Durian and Swifty-LLVM that need to go first.