diff --git a/lib/Serialization/ASTReaderStmt.cpp b/lib/Serialization/ASTReaderStmt.cpp
index 6c63180..f00b107 100644
--- a/lib/Serialization/ASTReaderStmt.cpp
+++ b/lib/Serialization/ASTReaderStmt.cpp
@@ -175,6 +175,7 @@
     void VisitUnresolvedLookupExpr(UnresolvedLookupExpr *E);
 
     void VisitUnaryTypeTraitExpr(UnaryTypeTraitExpr *E);
+    void VisitBinaryTypeTraitExpr(BinaryTypeTraitExpr *E);
     void VisitCXXNoexceptExpr(CXXNoexceptExpr *E);
 
     void VisitOpaqueValueExpr(OpaqueValueExpr *E);
@@ -1275,6 +1276,17 @@
   E->QueriedType = GetTypeSourceInfo(Record, Idx);
 }
 
+void ASTStmtReader::VisitBinaryTypeTraitExpr(BinaryTypeTraitExpr *E) {
+  VisitExpr(E);
+  E->BTT = (BinaryTypeTrait)Record[Idx++];
+  E->Value = (bool)Record[Idx++];
+  SourceRange Range = ReadSourceRange(Record, Idx);
+  E->Loc = Range.getBegin();
+  E->RParen = Range.getEnd();
+  E->LhsType = GetTypeSourceInfo(Record, Idx);
+  E->RhsType = GetTypeSourceInfo(Record, Idx);
+}
+
 void ASTStmtReader::VisitCXXNoexceptExpr(CXXNoexceptExpr *E) {
   VisitExpr(E);
   E->Value = (bool)Record[Idx++];
@@ -1800,6 +1812,10 @@
       S = new (Context) UnaryTypeTraitExpr(Empty);
       break;
 
+    case EXPR_CXX_BINARY_TYPE_TRAIT:
+      S = new (Context) BinaryTypeTraitExpr(Empty);
+      break;
+
     case EXPR_CXX_NOEXCEPT:
       S = new (Context) CXXNoexceptExpr(Empty);
       break;
diff --git a/lib/Serialization/ASTWriterStmt.cpp b/lib/Serialization/ASTWriterStmt.cpp
index 80f9a29..5e00b86 100644
--- a/lib/Serialization/ASTWriterStmt.cpp
+++ b/lib/Serialization/ASTWriterStmt.cpp
@@ -149,6 +149,7 @@
     void VisitUnresolvedLookupExpr(UnresolvedLookupExpr *E);
 
     void VisitUnaryTypeTraitExpr(UnaryTypeTraitExpr *E);
+    void VisitBinaryTypeTraitExpr(BinaryTypeTraitExpr *E);
     void VisitCXXNoexceptExpr(CXXNoexceptExpr *E);
 
     void VisitOpaqueValueExpr(OpaqueValueExpr *E);
@@ -1285,6 +1286,16 @@
   Code = serialization::EXPR_CXX_UNARY_TYPE_TRAIT;
 }
 
+void ASTStmtWriter::VisitBinaryTypeTraitExpr(BinaryTypeTraitExpr *E) {
+  VisitExpr(E);
+  Record.push_back(E->getTrait());
+  Record.push_back(E->getValue());
+  Writer.AddSourceRange(E->getSourceRange(), Record);
+  Writer.AddTypeSourceInfo(E->getLhsTypeSourceInfo(), Record);
+  Writer.AddTypeSourceInfo(E->getRhsTypeSourceInfo(), Record);
+  Code = serialization::EXPR_CXX_BINARY_TYPE_TRAIT;
+}
+
 void ASTStmtWriter::VisitCXXNoexceptExpr(CXXNoexceptExpr *E) {
   VisitExpr(E);
   Record.push_back(E->getValue());