Don't warn about static const integral data members with in-line constant

initializers just because they don't have a proper out-of-line definition.
Such code is technically ill-formed but is too common and too unlikely to be
a problem to be seriously worth worrying about.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126137 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 5 insertions, 2 deletions

diff --git a/lib/Sema/SemaExpr.cpp b/lib/Sema/SemaExpr.cpp
index 84baa7d985..e7d167ed38 100644
--- a/lib/Sema/SemaExpr.cpp
+++ b/lib/Sema/SemaExpr.cpp
@@ -9336,9 +9336,12 @@ void Sema::MarkDeclarationReferenced(SourceLocation Loc, Decl *D) {
       }
     }
 
-    // Keep track of used but undefined variables.
+    // Keep track of used but undefined variables.  We make a hole in
+    // the warning for static const data members with in-line
+    // initializers.
     if (Var->hasDefinition() == VarDecl::DeclarationOnly
-        && Var->getLinkage() != ExternalLinkage) {
+        && Var->getLinkage() != ExternalLinkage
+        && !(Var->isStaticDataMember() && Var->hasInit())) {
       SourceLocation &old = UndefinedInternals[Var->getCanonicalDecl()];
       if (old.isInvalid()) old = Loc;
     }