From: Nico Weber <nicolasweber@gmx.de>
Date: Fri, 19 Feb 2016 02:51:07 +0000 (+0000)
Subject: Fix SemaTemplate/instantiate-field.cpp after r261297.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=b26af68557221b477c6e5db853c51c1818434de8;p=clang

Fix SemaTemplate/instantiate-field.cpp after r261297.

For templates, fields can have incomplete types:

  template <class T>
  struct A2 {
    struct B;
    B b;
  };

Don't try to touch the DefinitionData of those fields.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261301 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/AST/DeclCXX.cpp b/lib/AST/DeclCXX.cpp
index c8edd5a1b4..e84b91388f 100644
--- a/lib/AST/DeclCXX.cpp
+++ b/lib/AST/DeclCXX.cpp
@@ -704,7 +704,7 @@ void CXXRecordDecl::addedMember(Decl *D) {
 
     if (!Field->hasInClassInitializer() && !Field->isMutable()) {
       if (CXXRecordDecl *FieldType = Field->getType()->getAsCXXRecordDecl()) {
-        if (!FieldType->allowConstDefaultInit())
+        if (FieldType->hasDefinition() && !FieldType->allowConstDefaultInit())
           data().HasUninitializedFields = true;
       } else {
         data().HasUninitializedFields = true;