llvm 18.1.4

[BrewTestBot]

Created by brew bump

---

Created with brew bump-formula-pr.

[Porkepix]

Second time Linux self-hosted runner seems to have difficulties picking-up the job, curious.

[lukeshingles]

Is there a reason not to compile with -DLIBCXX_ENABLE_PARALLEL_ALGORITHMS=YES ? I would really like to have parallel algorithms available.

[poyaoc97]

Is there a reason not to compile with -DLIBCXX_ENABLE_PARALLEL_ALGORITHMS=YES ? I would really like to have parallel algorithms available.

That option was removed in llvm/llvm-project@e7e371188513348e493ed8afb1. Nowadays, you can either add -fexperimental-library to compile and link flags or define _LIBCPP_ENABLE_EXPERIMENTAL and link against libc++experimental.a (https://releases.llvm.org/18.1.0/projects/libcxx/docs/UsingLibcxx.html#enabling-experimental-c-library-features).

However, -DLIBCXX_INSTALL_MODULES=ON is the options that I would like to add.

[poyaoc97]

However, -DLIBCXX_INSTALL_MODULES=ON is the options that I would like to add.

-DLIBCXX_PSTL_CPU_BACKEND=libdispatch for macOS is also a nice addition! which is also in the CMake cache for testing: https://github.com/llvm/llvm-project/blob/llvmorg-18.1.0/libcxx/cmake/caches/Apple.cmake#L10.

[github-actions]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. To keep this pull request open, add a help wanted or in progress label.

[ChrisThrasher]

I've been following this PR thread since the beginning and just wanted to say that I really appreciate the Homebrew team for working hard to make this happen. :)

[chenrui333]

csound arm bottles would be covered with #169814

[fingolfin]

This update broke llvm for me:

$ /opt/homebrew/opt/llvm/bin/clang
dyld[97666]: Library not loaded: '/opt/homebrew/opt/z3/lib/libz3.4.12.dylib'
  Referenced from: '/opt/homebrew/Cellar/llvm/17.0.6_1/lib/libLLVM.dylib'
  Reason: tried: '/opt/homebrew/opt/z3/lib/libz3.4.12.dylib' (no such file), '/usr/local/lib/libz3.4.12.dylib' (no such file), '/usr/lib/libz3.4.12.dylib' (no such file), '/opt/homebrew/Cellar/z3/4.13.0/lib/libz3.4.12.dylib' (no such file), '/usr/local/lib/libz3.4.12.dylib' (no such file), '/usr/lib/libz3.4.12.dylib' (no such file)
Abort trap: 6

However this is on macOS 12.7.4 (on an M1 mac) so perhaps that's because I am on an unsupported OS?

[Bo98]

llvm/17.0.6_1

Doesn't look like you upgraded LLVM. This PR ships 18.1.4

[fingolfin]

Apologies for being unclear: this PR updated z3. As a result all older LLVM versions (which I need and which homebrew lists as llvm@15 etc.) are broken as they were still built against the older z3. So I guess they either all need to be rebuilt against the newer z3; or as a workaround perhaps I can downgrade z3 (but then presumably can't use llvm 18)

[carlocab]

Do brew update then brew reinstall llvm@17 (or whichever version you need).

[Bo98]

All versioned LLVM we ship don't link to z3. This includes llvm@17.

We only enable z3 for the latest llvm.

You're currently using an outdated unversioned llvm (so you're not using llvm@17 yet)