[PATCH] D159307: [Sema] add test cases for D152495

[Nick Desaulniers via Phabricator via cfe-commits]

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Ensure these don't regress the next time we reland D152495 <https://reviews.llvm.org/D152495>.

Link: https://github.com/ClangBuiltLinux/linux/issues/1926


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D159307

Files:
  clang/test/SemaCXX/warn-unused-variables.cpp


Index: clang/test/SemaCXX/warn-unused-variables.cpp
===================================================================
--- clang/test/SemaCXX/warn-unused-variables.cpp
+++ clang/test/SemaCXX/warn-unused-variables.cpp
@@ -46,6 +46,9 @@
   static int x = 0;
   static int y = 0; // expected-warning{{unused variable 'y'}}
 #pragma unused(x)
+  static __attribute__((used)) int z;
+  static __attribute__((unused)) int w;
+  [[maybe_unused]] static int v;
 }
 
 // PR10168


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