From 67795980157a48b51a59737a9478470eb0871dbb Mon Sep 17 00:00:00 2001
From: Mike Stump <mrs@apple.com>
Date: Sat, 14 Nov 2009 00:14:13 +0000
Subject: [PATCH] Mangling support for typeinfo names.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88726 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/Mangle.cpp | 16 ++++++++++++++++
 lib/CodeGen/Mangle.h   |  2 ++
 2 files changed, 18 insertions(+)

diff --git a/lib/CodeGen/Mangle.cpp b/lib/CodeGen/Mangle.cpp
index 0b00c17330..e644ff3e4e 100644
--- a/lib/CodeGen/Mangle.cpp
+++ b/lib/CodeGen/Mangle.cpp
@@ -56,6 +56,7 @@ namespace {
     void mangleCXXCtorVtable(const CXXRecordDecl *RD, int64_t Offset,
                              const CXXRecordDecl *Type);
     void mangleCXXRtti(QualType Ty);
+    void mangleCXXRttiName(QualType Ty);
     void mangleCXXCtor(const CXXConstructorDecl *D, CXXCtorType Type);
     void mangleCXXDtor(const CXXDestructorDecl *D, CXXDtorType Type);
 
@@ -236,6 +237,13 @@ void CXXNameMangler::mangleCXXRtti(QualType Ty) {
   mangleType(Ty);
 }
 
+void CXXNameMangler::mangleCXXRttiName(QualType Ty) {
+  // <special-name> ::= TS <type>  # typeinfo name (null terminated byte string)
+  Out << "_ZTS";
+
+  mangleType(Ty);
+}
+
 void CXXNameMangler::mangleGuardVariable(const VarDecl *D) {
   //  <special-name> ::= GV <object name>       # Guard variable for one-time
   //                                            # initialization
@@ -1480,4 +1488,12 @@ namespace clang {
 
     os.flush();
   }
+
+  void mangleCXXRttiName(MangleContext &Context, QualType Ty,
+                         llvm::raw_ostream &os) {
+    CXXNameMangler Mangler(Context, os);
+    Mangler.mangleCXXRttiName(Ty);
+
+    os.flush();
+  }
 }
diff --git a/lib/CodeGen/Mangle.h b/lib/CodeGen/Mangle.h
index df50afa6e9..458708fca6 100644
--- a/lib/CodeGen/Mangle.h
+++ b/lib/CodeGen/Mangle.h
@@ -72,6 +72,8 @@ namespace clang {
                        llvm::raw_ostream &os);
   void mangleCXXRtti(MangleContext &Context, QualType T, 
                      llvm::raw_ostream &os);
+  void mangleCXXRttiName(MangleContext &Context, QualType T, 
+                         llvm::raw_ostream &os);
   void mangleCXXCtor(MangleContext &Context, const CXXConstructorDecl *D, 
                      CXXCtorType Type, llvm::raw_ostream &os);
   void mangleCXXDtor(MangleContext &Context, const CXXDestructorDecl *D, 
-- 
2.40.0