From: Anders Carlsson <andersca@mac.com>
Date: Sat, 26 Sep 2009 02:26:02 +0000 (+0000)
Subject: Improve mangling of typename types.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ae3524866124021f3bc695886668254093c0793f;p=clang

Improve mangling of typename types.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82833 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/Mangle.cpp b/lib/CodeGen/Mangle.cpp
index 83dc0e64dc..9766e585ff 100644
--- a/lib/CodeGen/Mangle.cpp
+++ b/lib/CodeGen/Mangle.cpp
@@ -911,7 +911,22 @@ void CXXNameMangler::mangleType(const TemplateSpecializationType *T) {
 }
 
 void CXXNameMangler::mangleType(const TypenameType *T) {
-  assert(false && "can't mangle dependent typenames yet");
+  // Typename types are always nested
+  Out << 'N';
+
+  const Type *QTy = T->getQualifier()->getAsType();
+  if (const TemplateSpecializationType *TST = 
+        dyn_cast<TemplateSpecializationType>(QTy)) {
+    TemplateDecl *TD = TST->getTemplateName().getAsTemplateDecl();
+
+    mangleTemplatePrefix(TD);
+    mangleTemplateArgs(TST->getArgs(), TST->getNumArgs());
+  } else
+    assert(false && "Unhandled type!");
+
+  mangleSourceName(T->getIdentifier());
+  
+  Out << 'E';
 }
 
 void CXXNameMangler::mangleExpression(const Expr *E) {
diff --git a/test/CodeGenCXX/mangle.cpp b/test/CodeGenCXX/mangle.cpp
index 306188c8de..b61f1d00df 100644
--- a/test/CodeGenCXX/mangle.cpp
+++ b/test/CodeGenCXX/mangle.cpp
@@ -147,3 +147,11 @@ Debug dbg;
 // CHECK: @_ZNK5DebuglsEj
 int main(void) {  dbg << 32 ;}
 }
+
+template<typename T> struct S6 {
+  typedef int B;
+};
+
+template<typename T> void ft5(typename S6<T>::B) { }
+// CHECK: @_Z3ft5IiEvN2S6IT_E1BE
+template void ft5<int>(int);