Add a decl update when a static data member of a class template is instantiated in a different PCH than its containing class. Otherwise we get double definition errors. Fixes a Boost.MPL problem that affects Boost.Accumulators and probably a lot more of Boost.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130488 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/Sema/SemaExpr.cpp b/lib/Sema/SemaExpr.cpp
index c4ec8dc116..20b92b8420 100644
--- a/lib/Sema/SemaExpr.cpp
+++ b/lib/Sema/SemaExpr.cpp
@@ -16,6 +16,7 @@
 #include "clang/Sema/Lookup.h"
 #include "clang/Sema/AnalysisBasedWarnings.h"
 #include "clang/AST/ASTContext.h"
+#include "clang/AST/ASTMutationListener.h"
 #include "clang/AST/CXXInheritance.h"
 #include "clang/AST/DeclObjC.h"
 #include "clang/AST/DeclTemplate.h"
@@ -10000,6 +10001,9 @@ void Sema::MarkDeclarationReferenced(SourceLocation Loc, Decl *D) {
       if (MSInfo->getPointOfInstantiation().isInvalid() &&
           MSInfo->getTemplateSpecializationKind()== TSK_ImplicitInstantiation) {
         MSInfo->setPointOfInstantiation(Loc);
+        // This is a modification of an existing AST node. Notify listeners.
+        if (ASTMutationListener *L = getASTMutationListener())
+          L->StaticDataMemberInstantiated(Var);
         PendingInstantiations.push_back(std::make_pair(Var, Loc));
       }
     }