[compiler-rt] [compiler-rt][nsan] Add support for nan detection (PR #101531)

[Alexander Shaposhnikov via llvm-commits]

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@@ -0,0 +1,19 @@
+// RUN: %clangxx_nsan -O0 -g %s -o %t
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alexander-shaposhnikov wrote:

need to make this option work with `NSAN_OPTIONS=halt_on_error=0` and `NSAN_OPTIONS=halt_on_error=1`
(the behavior should be similar to the current consistency check)
(and cover by tests)

https://github.com/llvm/llvm-project/pull/101531