Replace the representation of template template argument pack

expansions with something that is easier to use correctly: a new
template argment kind, rather than a bit on an existing kind. Update
all of the switch statements that deal with template arguments, fixing
a few latent bugs in the process. I"m happy with this representation,
now.

And, oh look! Template instantiation and deduction work for template
template argument pack expansions.

llvm-svn: 122896

1 files changed, 5 insertions, 0 deletions

diff --git a/clang/lib/CodeGen/Mangle.cpp b/clang/lib/CodeGen/Mangle.cpp
index 0969b8716f6..ff0e9223c81 100644
--- a/clang/lib/CodeGen/Mangle.cpp
+++ b/clang/lib/CodeGen/Mangle.cpp
@@ -2169,6 +2169,11 @@ void CXXNameMangler::mangleTemplateArg(const NamedDecl *P,
     // This is mangled as <type>.
     mangleType(A.getAsTemplate());
     break;
+  case TemplateArgument::TemplateExpansion:
+    // This is mangled as Dp <type>.
+    Out << "Dp";
+    mangleType(A.getAsTemplateOrTemplatePattern());
+    break;
   case TemplateArgument::Expression:
     Out << 'X';
     mangleExpression(A.getAsExpr());