When value-initializing a class with no user-defined constructors but
with a non-trivial default constructor, zero-initialize the storage
and then call the default constructor. Fixes PR5800.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91548 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/PCHReaderStmt.cpp b/lib/Frontend/PCHReaderStmt.cpp
index 6c3cbca..ba82d26 100644
--- a/lib/Frontend/PCHReaderStmt.cpp
+++ b/lib/Frontend/PCHReaderStmt.cpp
@@ -860,6 +860,7 @@
   E->setConstructor(cast<CXXConstructorDecl>(Reader.GetDecl(Record[Idx++])));
   E->setLocation(SourceLocation::getFromRawEncoding(Record[Idx++]));
   E->setElidable(Record[Idx++]);  
+  E->setRequiresZeroInitialization(Record[Idx++]);
   for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
     E->setArg(I, cast<Expr>(StmtStack[StmtStack.size() - N + I]));
   return E->getNumArgs();