Don't warn on unused member functions that are extern because of a typedef.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171267 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/Sema.cpp b/lib/Sema/Sema.cpp
index 0c5e8db..a639d3b 100644
--- a/lib/Sema/Sema.cpp
+++ b/lib/Sema/Sema.cpp
@@ -363,6 +363,9 @@
return !SemaRef->ShouldWarnIfUnusedFileScopedDecl(DeclToCheck);
}
+ if (D->getLinkage() == ExternalLinkage)
+ return true;
+
return false;
}
diff --git a/test/SemaCXX/warn-unused-filescoped.cpp b/test/SemaCXX/warn-unused-filescoped.cpp
index 1e0802e..4cb38d9 100644
--- a/test/SemaCXX/warn-unused-filescoped.cpp
+++ b/test/SemaCXX/warn-unused-filescoped.cpp
@@ -118,3 +118,17 @@
}
} x; // expected-warning {{unused variable}}
}
+
+namespace test6 {
+ typedef struct {
+ void bar();
+ } A;
+
+ typedef struct {
+ void bar(); // expected-warning {{unused member function 'bar'}}
+ } *B;
+
+ struct C {
+ void bar();
+ };
+}
