On Sun, Mar 21, 2021 at 10:58 PM Miguel Ojeda
[off-list ref] wrote:

I tried your config and it worked, so it looks like the problem is
your old libclang (7) does not recognize some of the flags. If you can
try a newer LLVM installation, it would be great to confirm it.

Yeah, LLVM introduced asm goto in 9.0 [1], which makes sense if you
were running libclang-7.

[1] https://lists.llvm.org/pipermail/llvm-dev/2019-September/135304.html

Cheers,
Miguel