[clang] [compiler-rt] [Sanitizer] add signed-integer-wrap sanitizer (PR #80089)

[Justin Stitt via cfe-commits]

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@@ -0,0 +1,77 @@
+// Check that -fsanitize=signed-integer-wrap instruments with -fwrapv
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JustinStitt wrote:

Gotcha, I did just that in [5497e8b](https://github.com/llvm/llvm-project/pull/80089/commits/5497e8bc6849bf64c1158ff16b4aa04fd9141920). Thanks Nick!

https://github.com/llvm/llvm-project/pull/80089