[compiler-rt] [sanitizer-common][rtsan] Mark unsupported tests (PR #213404)

[Vitaly Buka via llvm-commits]

vitalybuka wrote:

> > > > This LGTM, but let's wait for feedback from Vitaly and Florian before merging
> > > 
> > > 
> > > Sounds good. The main feedback I want for this is the OVERALL feedback from that other review, that is "should rtsan be a part of the sanitizer common tests?"
> > > My opinion is yes, it gives us better coverage and makes us more conformant with standard expectations. It pointed out a couple bugs that we have had in there for years, and it may have made our life easier implementing some of the standard stuff originally. I also believe rtsan to be the only sanitizer not in this group right now.
> > > The downside is just more runtime, adding another sanitizer means more test time for any CI using this suite.
> > 
> > 
> > What is fraction % of tests you had to mark UNSUPPORTED?
> 
> @vitalybuka
> 
> Darwin: New tests that run and pass: 249 UNSUPPORTED: 26 Total: 275 UNSUPPORTED percentage: 9.5%
> 
> Linux is about the same, few additional unsupported: New tests that run and pass: 249 UNSUPPORTED: 40 Total: 289 UNSUPPORTED percentage 13.8%
> 
> Again, some of these UNSUPPORTED are temporary, and we'll go back through and clean them up (or at least discuss suport) so I expect this percentage to go down over time

Looks reasonable.
I don't mind to have them enabled, we can undo if it's causing problems.

https://github.com/llvm/llvm-project/pull/213404