[modules] Track all default template arguments for a given parameter across

modules, and allow use of a default template argument if any of the parameters
providing it is visible.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@239485 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/AST/DeclTemplate.cpp b/lib/AST/DeclTemplate.cpp
index c4e2c007c1..2544c85bbd 100644
--- a/lib/AST/DeclTemplate.cpp
+++ b/lib/AST/DeclTemplate.cpp
@@ -124,6 +124,12 @@ static void AdoptTemplateParameterList(TemplateParameterList *Params,
   }
 }
 
+namespace clang {
+void *allocateDefaultArgStorageChain(const ASTContext &C) {
+  return new (C) char[sizeof(void*) * 2];
+}
+}
+
 //===----------------------------------------------------------------------===//
 // RedeclarableTemplateDecl Implementation
 //===----------------------------------------------------------------------===//