src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/calc/IntegerConvertNode.java

@@ -127,11 +127,11 @@
 
     public static ValueNode convert(ValueNode input, Stamp stamp, StructuredGraph graph) {
         ValueNode convert = convert(input, stamp, false);
         if (!convert.isAlive()) {
             assert !convert.isDeleted();
-            convert = graph.addOrUnique(convert);
+            convert = graph.addOrUniqueWithInputs(convert);
         }
         return convert;
     }
 
     public static ValueNode convertUnsigned(ValueNode input, Stamp stamp) {