PR12438: Profile a reference to a type template parameter by depth and index,

not by canonical decl. This only matters for sizeof...(Pack) expressions; in
all other cases, we'd profile it as a type instead.

llvm-svn: 153884

1 files changed, 8 insertions, 0 deletions

diff --git a/clang/lib/AST/StmtProfile.cpp b/clang/lib/AST/StmtProfile.cpp
index c999ed45260..e5526cea74a 100644
--- a/clang/lib/AST/StmtProfile.cpp
+++ b/clang/lib/AST/StmtProfile.cpp
@@ -1083,6 +1083,14 @@ void StmtProfiler::VisitDecl(const Decl *D) {
       return;
     }
 
+    if (const TemplateTypeParmDecl *TTP =
+          dyn_cast<TemplateTypeParmDecl>(D)) {
+      ID.AddInteger(TTP->getDepth());
+      ID.AddInteger(TTP->getIndex());
+      ID.AddBoolean(TTP->isParameterPack());
+      return;
+    }
+
     if (const TemplateTemplateParmDecl *TTP =
           dyn_cast<TemplateTemplateParmDecl>(D)) {
       ID.AddInteger(TTP->getDepth());