1 files changed, 8 insertions, 0 deletions
diff --git a/src/compiler/scala/tools/nsc/backend/icode/analysis/TypeFlowAnalysis.scala b/src/compiler/scala/tools/nsc/backend/icode/analysis/TypeFlowAnalysis.scala
index 79cc091f4f..45e5a8b61e 100644
--- a/src/compiler/scala/tools/nsc/backend/icode/analysis/TypeFlowAnalysis.scala
+++ b/src/compiler/scala/tools/nsc/backend/icode/analysis/TypeFlowAnalysis.scala
@@ -253,6 +253,14 @@ abstract class TypeFlowAnalysis {
             stack.push(toTypeKind(method.info.resultType));
         }
 
+        case BOX(kind) =>
+          stack.pop
+          stack.push(BOXED(kind))
+
+        case UNBOX(kind) =>
+          stack.pop
+          stack.push(kind)
+
         case NEW(kind) =>
         	stack.push(kind);