diff --git a/compiler/optimizing/graph_visualizer.cc b/compiler/optimizing/graph_visualizer.cc
index f033e2e..f011e85 100644
--- a/compiler/optimizing/graph_visualizer.cc
+++ b/compiler/optimizing/graph_visualizer.cc
@@ -108,6 +108,10 @@
       } else {
         codegen_.DumpCoreRegister(output_, location.reg().RegId());
       }
+    } else if (location.IsConstant()) {
+      output_ << "constant";
+    } else if (location.IsInvalid()) {
+      output_ << "invalid";
     } else if (location.IsStackSlot()) {
       output_ << location.GetStackIndex() << "(sp)";
     } else {