merge clang-16.0.6

Enable kernel-address sanitizer for clang openbsd target

OK deraadt@

Merge LLVM 13.0.0.

Allow the compiler driver to link the libclang_rt.profile library.

With this change, passing -fprofile-instr-generate -fcoverage-mapping
when building programs will attempt linking against libclang_

Allow the compiler driver to link the libclang_rt.profile library.

With this change, passing -fprofile-instr-generate -fcoverage-mapping
when building programs will attempt linking against libclang_rt.profile.a.

Please note that we do not ship the library yet.

OK jca@

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llvm: Use Component in OpenBSD::getCompilerRT to find libraries

Clang uses runtime libraries for some advanced features like
sanitizers. Different systems have different preferences about file
place

llvm: Use Component in OpenBSD::getCompilerRT to find libraries

Clang uses runtime libraries for some advanced features like
sanitizers. Different systems have different preferences about file
placement. OpenBSD with this change would use this name for ASan:
/usr/lib/clang/11.1.0/lib/libclang_rt.asan.a

So far, no libraries are shipped, only their eventual location is chosen.

Discussed with deraadt@ and kettenis@, OK mortimer@

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Revert: llvm: openbsd driver had one -lcompiler_rt too many

Suggested by jca@ that kettenis@ looks at it first.

llvm: openbsd driver had one -lcompiler_rt too many

Tested by doing a full system build locally. Will work with brad@ for
upstream-ing.

OK patrick & mortimer

Merge LLVM 11.1.0.

Import LLVM 11.1.0 release including clang, lld and lldb.

Import LLVM 10.0.0 release including clang, lld and lldb.

ok hackroom
tested by plenty