[clang] [compiler-rt] [llvm] [rtsan] Allow for rtsan/ubsan runtime combos (PR #193585)

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@@ -7,8 +7,9 @@
 // Reason unknown, needs debugging.
 // UNSUPPORTED: target=aarch64{{.*}} && ubsan-tsan
 
-// TySan doesn't build a shared library
+// These sanitizers don't build a shared library
 // UNSUPPORTED: ubsan-tysan
+// UNSUPPORTED: ubsan-rtsan
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davidtrevelyan wrote:

Question: it's not immediately clear to me why the program below would fail to complete with rtsan enabled - what's the context here?

https://github.com/llvm/llvm-project/pull/193585