diff --git a/lib/AST/ASTImporter.cpp b/lib/AST/ASTImporter.cpp
index 69887bf..661adb8 100644
--- a/lib/AST/ASTImporter.cpp
+++ b/lib/AST/ASTImporter.cpp
@@ -109,6 +109,10 @@
     Expr *VisitExpr(Expr *E);
     Expr *VisitIntegerLiteral(IntegerLiteral *E);
     Expr *VisitCharacterLiteral(CharacterLiteral *E);
+    Expr *VisitParenExpr(ParenExpr *E);
+    Expr *VisitUnaryOperator(UnaryOperator *E);
+    Expr *VisitBinaryOperator(BinaryOperator *E);
+    Expr *VisitCompoundAssignOperator(CompoundAssignOperator *E);
     Expr *VisitImplicitCastExpr(ImplicitCastExpr *E);
   };
 }
@@ -2609,6 +2613,76 @@
                                           Importer.Import(E->getLocation()));
 }
 
+Expr *ASTNodeImporter::VisitParenExpr(ParenExpr *E) {
+  Expr *SubExpr = Importer.Import(E->getSubExpr());
+  if (!SubExpr)
+    return 0;
+  
+  return new (Importer.getToContext()) 
+                                  ParenExpr(Importer.Import(E->getLParen()),
+                                            Importer.Import(E->getRParen()),
+                                            SubExpr);
+}
+
+Expr *ASTNodeImporter::VisitUnaryOperator(UnaryOperator *E) {
+  QualType T = Importer.Import(E->getType());
+  if (T.isNull())
+    return 0;
+
+  Expr *SubExpr = Importer.Import(E->getSubExpr());
+  if (!SubExpr)
+    return 0;
+  
+  return new (Importer.getToContext()) UnaryOperator(SubExpr, E->getOpcode(),
+                                                     T,
+                                         Importer.Import(E->getOperatorLoc()));                                        
+}
+
+Expr *ASTNodeImporter::VisitBinaryOperator(BinaryOperator *E) {
+  QualType T = Importer.Import(E->getType());
+  if (T.isNull())
+    return 0;
+
+  Expr *LHS = Importer.Import(E->getLHS());
+  if (!LHS)
+    return 0;
+  
+  Expr *RHS = Importer.Import(E->getRHS());
+  if (!RHS)
+    return 0;
+  
+  return new (Importer.getToContext()) BinaryOperator(LHS, RHS, E->getOpcode(),
+                                                      T,
+                                          Importer.Import(E->getOperatorLoc()));
+}
+
+Expr *ASTNodeImporter::VisitCompoundAssignOperator(CompoundAssignOperator *E) {
+  QualType T = Importer.Import(E->getType());
+  if (T.isNull())
+    return 0;
+  
+  QualType CompLHSType = Importer.Import(E->getComputationLHSType());
+  if (CompLHSType.isNull())
+    return 0;
+  
+  QualType CompResultType = Importer.Import(E->getComputationResultType());
+  if (CompResultType.isNull())
+    return 0;
+  
+  Expr *LHS = Importer.Import(E->getLHS());
+  if (!LHS)
+    return 0;
+  
+  Expr *RHS = Importer.Import(E->getRHS());
+  if (!RHS)
+    return 0;
+  
+  return new (Importer.getToContext()) 
+                        CompoundAssignOperator(LHS, RHS, E->getOpcode(),
+                                               T, CompLHSType, CompResultType,
+                                          Importer.Import(E->getOperatorLoc()));
+}
+
 Expr *ASTNodeImporter::VisitImplicitCastExpr(ImplicitCastExpr *E) {
   QualType T = Importer.Import(E->getType());
   if (T.isNull())
diff --git a/test/ASTMerge/Inputs/exprs1.c b/test/ASTMerge/Inputs/exprs1.c
index f9de8df..bc76887 100644
--- a/test/ASTMerge/Inputs/exprs1.c
+++ b/test/ASTMerge/Inputs/exprs1.c
@@ -1,5 +1,7 @@
 // Matching
 enum E0 {
-  E0_Val0 = 'a'
+  E0_Val0 = 'a',
+  E0_Val1 = (17),
+  E0_Val2 = (1 << 2)
 };
 
diff --git a/test/ASTMerge/Inputs/exprs2.c b/test/ASTMerge/Inputs/exprs2.c
index f9de8df..bc76887 100644
--- a/test/ASTMerge/Inputs/exprs2.c
+++ b/test/ASTMerge/Inputs/exprs2.c
@@ -1,5 +1,7 @@
 // Matching
 enum E0 {
-  E0_Val0 = 'a'
+  E0_Val0 = 'a',
+  E0_Val1 = (17),
+  E0_Val2 = (1 << 2)
 };