[PATCH] tst-atomic.c: Mark as UNSUPPORTED when compiled with Clang

[Maciej W. Rozycki]

On Tue, 17 Dec 2024, Andrew Pinski wrote:

> This is also a bug in how clang implements inline-asm and should be
> filed upstream as a bug.  If clang folks think this is not a bug, then
> clang does not implement GCC semantics for inline-asm and clang should
> not mention it implements GCC inline-asm.

 Yeah, I've seen Clang people demand that we pessimise code produced by 
GCC for the Linux kernel to satisfy their approach with inline-asm, cf. 
<https://lore.kernel.org/r/1611722507-12017-1-git-send-email-yangtiezhu@loongson.cn/>, 
<https://lore.kernel.org/r/CAG_fn=W0JHf8QyUX==+rQMp8PoULHrsQCa9Htffws31ga8k-iw@mail.gmail.com/>, 
<https://github.com/ClangBuiltLinux/linux/issues/836>, 
<https://lore.kernel.org/r/20150203133717.Qybyu_GdZw-gLyVnKXyaLf3gRspDZISDvWRzBvgVnBE@z/>; 
10 years on and still not fixed: I guess they mean not to and by the look 
of it I need to conclude that they won.

  Maciej