[clang] [compiler-rt] [rtsan][clang] Add Hexagon support for RTSan (PR #200313)

[Brian Cain via cfe-commits]

androm3da wrote:

> This all seems straightforward enough to me.
> 
> Will you talk to me about the support/test plan? 

Sure - I'm happy to support the hexagon architecture for rtsan.  

> For machines/OSs/archs that us codeowners don't have, I just want to make sure there is intention of support if there are any test failures or bugs that appear.

Makes sense.  I tested it using `qemu-hexagon` and if you would like me to document the process for the sake of the community I can do that.

https://github.com/llvm/llvm-project/pull/200313