Typedefs can be redeclared. That seems like something we should record in
the AST lest we run into some crazy canonicalization bug like PR5874.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92283 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaTemplateInstantiateDecl.cpp b/lib/Sema/SemaTemplateInstantiateDecl.cpp
index 1ec91bd..e909c4f 100644
--- a/lib/Sema/SemaTemplateInstantiateDecl.cpp
+++ b/lib/Sema/SemaTemplateInstantiateDecl.cpp
@@ -145,6 +145,11 @@
if (Invalid)
Typedef->setInvalidDecl();
+ if (TypedefDecl *Prev = D->getPreviousDeclaration()) {
+ NamedDecl *InstPrev = SemaRef.FindInstantiatedDecl(Prev, TemplateArgs);
+ Typedef->setPreviousDeclaration(cast<TypedefDecl>(InstPrev));
+ }
+
Owner->addDecl(Typedef);
return Typedef;