PR13811: Add a FunctionParmPackExpr node to handle references to function

parameter packs where the reference is not being expanded but the pack has
been. Previously, Clang would segfault in such cases.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163672 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 8 insertions, 0 deletions

diff --git a/lib/AST/StmtProfile.cpp b/lib/AST/StmtProfile.cpp
index 5d7f9f8ede..0c3186fec2 100644
--- a/lib/AST/StmtProfile.cpp
+++ b/lib/AST/StmtProfile.cpp
@@ -973,6 +973,14 @@ void StmtProfiler::VisitSubstNonTypeTemplateParmExpr(
   Visit(E->getReplacement());
 }
 
+void StmtProfiler::VisitFunctionParmPackExpr(const FunctionParmPackExpr *S) {
+  VisitExpr(S);
+  VisitDecl(S->getParameterPack());
+  ID.AddInteger(S->getNumExpansions());
+  for (FunctionParmPackExpr::iterator I = S->begin(), E = S->end(); I != E; ++I)
+    VisitDecl(*I);
+}
+
 void StmtProfiler::VisitMaterializeTemporaryExpr(
                                            const MaterializeTemporaryExpr *S) {
   VisitExpr(S);