3 files changed, 17 insertions, 4 deletions
diff --git a/lib/AST/DeclTemplate.cpp b/lib/AST/DeclTemplate.cpp
index fbaaf4de7f..11b9275e34 100644
--- a/lib/AST/DeclTemplate.cpp
+++ b/lib/AST/DeclTemplate.cpp
@@ -236,6 +236,19 @@ TemplateArgument::TemplateArgument(Expr *E) : Kind(Expression) {
 }
 
 //===----------------------------------------------------------------------===//
+// TemplateArgumentListBuilder Implementation
+//===----------------------------------------------------------------------===//
+void TemplateArgumentListBuilder::push_back(const TemplateArgument& Arg) {
+  switch (Arg.getKind()) {
+  case TemplateArgument::Type:
+    assert(Arg.getAsType()->isCanonical() && "Type must be canonical!");
+    break;
+  }
+  
+  Args.push_back(Arg);
+}
+
+//===----------------------------------------------------------------------===//
 // TemplateArgumentList Implementation
 //===----------------------------------------------------------------------===//
 TemplateArgumentList::TemplateArgumentList(ASTContext &Context,
diff --git a/lib/Sema/SemaTemplate.cpp b/lib/Sema/SemaTemplate.cpp
index 660f54ca78..f9176ca470 100644
--- a/lib/Sema/SemaTemplate.cpp
+++ b/lib/Sema/SemaTemplate.cpp
@@ -811,7 +811,7 @@ QualType Sema::CheckTemplateIdType(TemplateName Name,
 
   // Check that the template argument list is well-formed for this
   // template.
-  TemplateArgumentListBuilder ConvertedTemplateArgs;
+  TemplateArgumentListBuilder ConvertedTemplateArgs(Context);
   if (CheckTemplateArgumentList(Template, TemplateLoc, LAngleLoc, 
                                 TemplateArgs, NumTemplateArgs, RAngleLoc,
                                 ConvertedTemplateArgs))
@@ -2064,7 +2064,7 @@ Sema::ActOnClassTemplateSpecialization(Scope *S, unsigned TagSpec, TagKind TK,
 
   // Check that the template argument list is well-formed for this
   // template.
-  TemplateArgumentListBuilder ConvertedTemplateArgs;
+  TemplateArgumentListBuilder ConvertedTemplateArgs(Context);
   if (CheckTemplateArgumentList(ClassTemplate, TemplateNameLoc, LAngleLoc, 
                                 &TemplateArgs[0], TemplateArgs.size(),
                                 RAngleLoc, ConvertedTemplateArgs))
@@ -2268,7 +2268,7 @@ Sema::ActOnExplicitInstantiation(Scope *S, SourceLocation TemplateLoc,
 
   // Check that the template argument list is well-formed for this
   // template.
-  TemplateArgumentListBuilder ConvertedTemplateArgs;
+  TemplateArgumentListBuilder ConvertedTemplateArgs(Context);
   if (CheckTemplateArgumentList(ClassTemplate, TemplateNameLoc, LAngleLoc, 
                                 TemplateArgs.data(), TemplateArgs.size(),
                                 RAngleLoc, ConvertedTemplateArgs))
diff --git a/lib/Sema/SemaTemplateDeduction.cpp b/lib/Sema/SemaTemplateDeduction.cpp
index 59793fe4c0..812b319804 100644
--- a/lib/Sema/SemaTemplateDeduction.cpp
+++ b/lib/Sema/SemaTemplateDeduction.cpp
@@ -386,7 +386,7 @@ Sema::DeduceTemplateArguments(ClassTemplatePartialSpecializationDecl *Partial,
   
   // FIXME: This is terrible. DeduceTemplateArguments should use a 
   // TemplateArgumentListBuilder directly.
-  TemplateArgumentListBuilder Builder;
+  TemplateArgumentListBuilder Builder(Context);
   for (unsigned I = 0, N = Deduced.size(); I != N; ++I)
     Builder.push_back(Deduced[I]);