Index: lib/IR/AsmWriter.cpp
===================================================================
--- lib/IR/AsmWriter.cpp
+++ lib/IR/AsmWriter.cpp
@@ -2676,7 +2676,7 @@
     Out << "\n; <label>:";
     int Slot = Machine.getLocalSlot(BB);
     if (Slot != -1)
-      Out << Slot;
+      Out << Slot << ":";
     else
       Out << "<badref>";
   }
Index: test/Transforms/SimplifyCFG/merge-cond-stores-2.ll
===================================================================
--- test/Transforms/SimplifyCFG/merge-cond-stores-2.ll
+++ test/Transforms/SimplifyCFG/merge-cond-stores-2.ll
@@ -27,10 +27,10 @@
 ; CHECK: select
 ; CHECK-NOT: select
 ; CHECK: br i1 {{.*}}, label %[[L:.*]], label %[[R:.*]]
-; CHECK: [[L]] ; preds = 
+; CHECK: [[L]]: ; preds =
 ; CHECK-NEXT: store
 ; CHECK-NEXT: br label %[[R]]
-; CHECK: [[R]] ; preds = 
+; CHECK: [[R]]: ; preds =
 ; CHECK-NEXT: ret i32 0
 
 define i32 @f(i32* %b) {