From: Douglas Gregor <dgregor@apple.com>
Date: Thu, 17 Feb 2011 17:10:20 +0000 (+0000)
Subject: Devirtualize RedeclarableTemplateDecl::newCommon().
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=9e6f2a8d70c3027e99c354edd9d31a37c102f30a;p=clang

Devirtualize RedeclarableTemplateDecl::newCommon().


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125750 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/clang/AST/DeclTemplate.h b/include/clang/AST/DeclTemplate.h
index 774258711c..b3277547e3 100644
--- a/include/clang/AST/DeclTemplate.h
+++ b/include/clang/AST/DeclTemplate.h
@@ -561,7 +561,7 @@ protected:
   /// for the common pointer.
   CommonBase *getCommonPtr();
 
-  virtual CommonBase *newCommon(ASTContext &C) = 0;
+  CommonBase *newCommon(ASTContext &C);
 
   // Construct a template decl with name, parameters, and templated element.
   RedeclarableTemplateDecl(Kind DK, DeclContext *DC, SourceLocation L,
@@ -773,7 +773,8 @@ protected:
   }
 
   friend class FunctionDecl;
-
+  friend class RedeclarableTemplateDecl;
+                               
   /// \brief Retrieve the set of function template specializations of this
   /// function template.
   llvm::FoldingSet<FunctionTemplateSpecializationInfo> &getSpecializations() {
@@ -1731,6 +1732,8 @@ protected:
     return static_cast<Common *>(RedeclarableTemplateDecl::getCommonPtr());
   }
 
+  friend class RedeclarableTemplateDecl;
+
 public:
   /// Get the underlying class declarations of the template.
   CXXRecordDecl *getTemplatedDecl() const {
diff --git a/lib/AST/DeclTemplate.cpp b/lib/AST/DeclTemplate.cpp
index a73deeab3a..2005ff62f6 100644
--- a/lib/AST/DeclTemplate.cpp
+++ b/lib/AST/DeclTemplate.cpp
@@ -112,6 +112,14 @@ RedeclarableTemplateDecl::CommonBase *RedeclarableTemplateDecl::getCommonPtr() {
 }
 
 
+RedeclarableTemplateDecl::CommonBase *
+RedeclarableTemplateDecl::newCommon(ASTContext &C) {
+  if (FunctionTemplateDecl *FunTmpl = dyn_cast<FunctionTemplateDecl>(this))
+    return FunTmpl->newCommon(C);
+  
+  return cast<ClassTemplateDecl>(this)->newCommon(C);
+}
+
 RedeclarableTemplateDecl *RedeclarableTemplateDecl::getCanonicalDeclImpl() {
   RedeclarableTemplateDecl *Tmpl = this;
   while (Tmpl->getPreviousDeclaration())