src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.loop/src/org/graalvm/compiler/loop/MathUtil.java

*** 86,105 ****
  
      private static ValueNode fixedDivBefore(StructuredGraph graph, FixedNode before, ValueNode dividend, ValueNode divisor, BiFunction<ValueNode, ValueNode, ValueNode> createDiv) {
          if (isConstantOne(divisor)) {
              return dividend;
          }
!         ValueNode div = graph.addOrUniqueWithInputs(createDiv.apply(dividend, divisor));
          if (div instanceof FixedBinaryNode) {
              FixedBinaryNode fixedDiv = (FixedBinaryNode) div;
              if (before.predecessor() instanceof FixedBinaryNode) {
                  FixedBinaryNode binaryPredecessor = (FixedBinaryNode) before.predecessor();
                  if (fixedDiv.dataFlowEquals(binaryPredecessor)) {
                      fixedDiv.safeDelete();
                      return binaryPredecessor;
                  }
              }
!             graph.addBeforeFixed(before, fixedDiv);
          }
          return div;
      }
  }
--- 86,105 ----
  
      private static ValueNode fixedDivBefore(StructuredGraph graph, FixedNode before, ValueNode dividend, ValueNode divisor, BiFunction<ValueNode, ValueNode, ValueNode> createDiv) {
          if (isConstantOne(divisor)) {
              return dividend;
          }
!         ValueNode div = createDiv.apply(dividend, divisor);
          if (div instanceof FixedBinaryNode) {
              FixedBinaryNode fixedDiv = (FixedBinaryNode) div;
              if (before.predecessor() instanceof FixedBinaryNode) {
                  FixedBinaryNode binaryPredecessor = (FixedBinaryNode) before.predecessor();
                  if (fixedDiv.dataFlowEquals(binaryPredecessor)) {
                      fixedDiv.safeDelete();
                      return binaryPredecessor;
                  }
              }
!             graph.addBeforeFixed(before, graph.addOrUniqueWithInputs(fixedDiv));
          }
          return div;
      }
  }