Index: lib/AST/ASTDumper.cpp
===================================================================
--- lib/AST/ASTDumper.cpp
+++ lib/AST/ASTDumper.cpp
@@ -1043,21 +1043,21 @@
 void ASTDumper::VisitOMPDeclareReductionDecl(const OMPDeclareReductionDecl *D) {
   NodeDumper.dumpName(D);
   NodeDumper.dumpType(D->getType());
-  OS << " combiner";
-  dumpStmt(D->getCombiner());
+
+  dumpStmt(D->getCombiner(), "combiner");
   if (auto *Initializer = D->getInitializer()) {
-    OS << " initializer";
+    std::string label = "initializer";
     switch (D->getInitializerKind()) {
     case OMPDeclareReductionDecl::DirectInit:
-      OS << " omp_priv = ";
+      label += " omp_priv =";
       break;
     case OMPDeclareReductionDecl::CopyInit:
-      OS << " omp_priv ()";
+      label += " omp_priv ()";
       break;
     case OMPDeclareReductionDecl::CallInit:
       break;
     }
-    dumpStmt(Initializer);
+    dumpStmt(Initializer, label);
   }
 }
 
Index: test/AST/dump.cpp
===================================================================
--- test/AST/dump.cpp
+++ test/AST/dump.cpp
@@ -13,33 +13,37 @@
 
 #pragma omp declare reduction(fun : float : omp_out += omp_in) initializer(omp_priv = omp_orig + 15)
 
-// CHECK:      |-OMPDeclareReductionDecl {{.+}} <line:[[@LINE-4]]:35> col:35 operator+ 'int' combiner
-// CHECK-NEXT: | |-CompoundAssignOperator {{.+}} <col:47, col:58> 'int' lvalue '*=' ComputeLHSTy='int' ComputeResultTy='int'
-// CHECK-NEXT: | | |-DeclRefExpr {{.+}} <col:47> 'int' lvalue Var {{.+}} 'omp_out' 'int'
-// CHECK-NEXT: | | `-ImplicitCastExpr {{.+}} <col:58> 'int' <LValueToRValue>
-// CHECK-NEXT: | |   `-DeclRefExpr {{.+}} <col:58> 'int' lvalue Var {{.+}} 'omp_in' 'int'
+// CHECK:      |-OMPDeclareReductionDecl {{.+}} <line:[[@LINE-4]]:35> col:35 operator+ 'int'
+// CHECK-NEXT: | |-combiner
+// CHECK-NEXT: | | `-CompoundAssignOperator {{.+}} <col:47, col:58> 'int' lvalue '*=' ComputeLHSTy='int' ComputeResultTy='int'
+// CHECK-NEXT: | |   |-DeclRefExpr {{.+}} <col:47> 'int' lvalue Var {{.+}} 'omp_out' 'int'
+// CHECK-NEXT: | |   `-ImplicitCastExpr {{.+}} <col:58> 'int' <LValueToRValue>
+// CHECK-NEXT: | |     `-DeclRefExpr {{.+}} <col:58> 'int' lvalue Var {{.+}} 'omp_in' 'int'
 // CHECK-NEXT: | |-VarDecl {{.+}} <col:35> col:35 implicit used omp_in 'int'
 // CHECK-NEXT: | `-VarDecl {{.+}} <col:35> col:35 implicit used omp_out 'int'
-// CHECK-NEXT: |-OMPDeclareReductionDecl {{.+}} <col:40> col:40 operator+ 'char' combiner
-// CHECK-NEXT: | |-CompoundAssignOperator {{.+}} <col:47, col:58> 'char' lvalue '*=' ComputeLHSTy='int' ComputeResultTy='int'
-// CHECK-NEXT: | | |-DeclRefExpr {{.+}} <col:47> 'char' lvalue Var {{.+}} 'omp_out' 'char'
-// CHECK-NEXT: | | `-ImplicitCastExpr {{.+}} <col:58> 'int' <IntegralCast>
-// CHECK-NEXT: | |   `-ImplicitCastExpr {{.+}} <col:58> 'char' <LValueToRValue>
-// CHECK-NEXT: | |     `-DeclRefExpr {{.+}} <col:58> 'char' lvalue Var {{.+}} 'omp_in' 'char'
+// CHECK-NEXT: |-OMPDeclareReductionDecl {{.+}} <col:40> col:40 operator+ 'char'
+// CHECK-NEXT: | |-combiner
+// CHECK-NEXT: | `-CompoundAssignOperator {{.+}} <col:47, col:58> 'char' lvalue '*=' ComputeLHSTy='int' ComputeResultTy='int'
+// CHECK-NEXT: |   |-DeclRefExpr {{.+}} <col:47> 'char' lvalue Var {{.+}} 'omp_out' 'char'
+// CHECK-NEXT: |   `-ImplicitCastExpr {{.+}} <col:58> 'int' <IntegralCast>
+// CHECK-NEXT: |     `-ImplicitCastExpr {{.+}} <col:58> 'char' <LValueToRValue>
+// CHECK-NEXT: |       `-DeclRefExpr {{.+}} <col:58> 'char' lvalue Var {{.+}} 'omp_in' 'char'
 // CHECK-NEXT: | |-VarDecl {{.+}} <col:40> col:40 implicit used omp_in 'char'
 // CHECK-NEXT: | `-VarDecl {{.+}} <col:40> col:40 implicit used omp_out 'char'
-// CHECK-NEXT: |-OMPDeclareReductionDecl {{.+}} <line:[[@LINE-17]]:37> col:37 fun 'float' combiner initializer
-// CHECK-NEXT: | |-CompoundAssignOperator {{.+}} <col:45, col:56> 'float' lvalue '+=' ComputeLHSTy='float' ComputeResultTy='float'
-// CHECK-NEXT: | | |-DeclRefExpr {{.+}} <col:45> 'float' lvalue Var {{.+}} 'omp_out' 'float'
-// CHECK-NEXT: | | `-ImplicitCastExpr {{.+}} <col:56> 'float' <LValueToRValue>
-// CHECK-NEXT: | |   `-DeclRefExpr {{.+}} <col:56> 'float' lvalue Var {{.+}} 'omp_in' 'float'
-// CHECK-NEXT: | |-BinaryOperator {{.+}} <col:76, col:98> 'float' lvalue '='
-// CHECK-NEXT: | | |-DeclRefExpr {{.+}} <col:76> 'float' lvalue Var {{.+}} 'omp_priv' 'float'
-// CHECK-NEXT: | | `-BinaryOperator {{.+}} <col:87, col:98> 'float' '+'
-// CHECK-NEXT: | |   |-ImplicitCastExpr {{.+}} <col:87> 'float' <LValueToRValue>
-// CHECK-NEXT: | |   | `-DeclRefExpr {{.+}} <col:87> 'float' lvalue Var {{.+}} 'omp_orig' 'float'
-// CHECK-NEXT: | |   `-ImplicitCastExpr {{.+}} <col:98> 'float' <IntegralToFloating>
-// CHECK-NEXT: | |     `-IntegerLiteral {{.+}} <col:98> 'int' 15
+// CHECK-NEXT: |-OMPDeclareReductionDecl {{.+}} <line:[[@LINE-19]]:37> col:37 fun 'float'
+// CHECK-NEXT: | |-combiner
+// CHECK-NEXT: | `-CompoundAssignOperator {{.+}} <col:45, col:56> 'float' lvalue '+=' ComputeLHSTy='float' ComputeResultTy='float'
+// CHECK-NEXT: |   |-DeclRefExpr {{.+}} <col:45> 'float' lvalue Var {{.+}} 'omp_out' 'float'
+// CHECK-NEXT: |   `-ImplicitCastExpr {{.+}} <col:56> 'float' <LValueToRValue>
+// CHECK-NEXT: |     `-DeclRefExpr {{.+}} <col:56> 'float' lvalue Var {{.+}} 'omp_in' 'float'
+// CHECK-NEXT: | |-initializer
+// CHECK-NEXT: | `-BinaryOperator {{.+}} <col:76, col:98> 'float' lvalue '='
+// CHECK-NEXT: |   |-DeclRefExpr {{.+}} <col:76> 'float' lvalue Var {{.+}} 'omp_priv' 'float'
+// CHECK-NEXT: |   `-BinaryOperator {{.+}} <col:87, col:98> 'float' '+'
+// CHECK-NEXT: |     |-ImplicitCastExpr {{.+}} <col:87> 'float' <LValueToRValue>
+// CHECK-NEXT: |     | `-DeclRefExpr {{.+}} <col:87> 'float' lvalue Var {{.+}} 'omp_orig' 'float'
+// CHECK-NEXT: |     `-ImplicitCastExpr {{.+}} <col:98> 'float' <IntegralToFloating>
+// CHECK-NEXT: |       `-IntegerLiteral {{.+}} <col:98> 'int' 15
 
 struct S {
   int a, b;