[clang] [analyzer] Ignoring `T v=v; ` idiom for uninitialized variable checker and dead store checker (PR #187530)

[Ella Ma via cfe-commits]

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@@ -0,0 +1,65 @@
+// RUN: %clang_analyze_cc1 -xc %s \
+// RUN:   -analyzer-checker=core,debug.ExprInspection,deadcode.DeadStores \
+// RUN:   -verify
+// RUN: %clang_analyze_cc1 -xc++ %s \
+// RUN:   -analyzer-checker=core,debug.ExprInspection,deadcode.DeadStores \
+// RUN:   -verify -w
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Snape3058 wrote:

The use of -w for C++ only is because the C++ frontend (`-Wuninitialized`) will warn self-assignment initialization for structs and references, but there are no frontend warnings in the C execution. Should I add a comment here or below in the code to indicate this?

https://github.com/llvm/llvm-project/pull/187530