[Bug 264394] Several ports can't build with CPUTYPE?=skylake-avx512 or CPUTYPE?=tigerlake - eat 1 CPU core forever

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=264394

Dimitry Andric <dim@FreeBSD.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |brooks@FreeBSD.org,
                   |                            |dim@FreeBSD.org

--- Comment #6 from Dimitry Andric <dim@FreeBSD.org> ---
(In reply to VVD from comment #5)
The mesa-dri port depends on devel/llvm13 for the
/usr/local/llvm13/lib/libLLVM-13.so dynamic library, and not for the compiler
binary (clang13).

The actual compilations in the port are still done using the base compiler, and
you can see that it is `/proc/32857/file -> /usr/bin/cc` which hangs.

E.g. it is the base compiler which needs to be recompiled.

That said, maybe brooks can pull the patch into the devel/llvm13 port. I think
the problem was introduced somewhere after llvm 13.0.0, and was only solved
after 14.0.4.

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