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

*** 120,132 ****
          if (forValue.isConstant()) {
              if (GeneratePIC.getValue(tool.getOptions())) {
                  // We always want uncompressed constants
                  return this;
              }
!             int stableDimension = ((ConstantNode) forValue).getStableDimension();
!             boolean isDefaultStable = ((ConstantNode) forValue).isDefaultStable();
!             return ConstantNode.forConstant(stamp(), convert(forValue.asConstant(), tool.getConstantReflection()), stableDimension, isDefaultStable, tool.getMetaAccess());
          } else if (forValue instanceof CompressionNode) {
              CompressionNode other = (CompressionNode) forValue;
              if (op != other.op && encoding.equals(other.encoding)) {
                  return other.getValue();
              }
--- 120,132 ----
          if (forValue.isConstant()) {
              if (GeneratePIC.getValue(tool.getOptions())) {
                  // We always want uncompressed constants
                  return this;
              }
! 
!             ConstantNode constant = (ConstantNode) forValue;
!             return ConstantNode.forConstant(stamp(), convert(constant.getValue(), tool.getConstantReflection()), constant.getStableDimension(), constant.isDefaultStable(), tool.getMetaAccess());
          } else if (forValue instanceof CompressionNode) {
              CompressionNode other = (CompressionNode) forValue;
              if (op != other.op && encoding.equals(other.encoding)) {
                  return other.getValue();
              }
*** 134,159 ****
          return this;
      }
  
      @Override
      public void generate(NodeLIRBuilderTool gen) {
-         LIRGeneratorTool hsGen = gen.getLIRGeneratorTool();
          boolean nonNull;
!         if (getValue().stamp() instanceof AbstractObjectStamp) {
!             nonNull = StampTool.isPointerNonNull(getValue().stamp());
          } else {
              // metaspace pointers are never null
              nonNull = true;
          }
  
          Value result;
          switch (op) {
              case Compress:
!                 result = hsGen.emitCompress(gen.operand(getValue()), encoding, nonNull);
                  break;
              case Uncompress:
!                 result = hsGen.emitUncompress(gen.operand(getValue()), encoding, nonNull);
                  break;
              default:
                  throw GraalError.shouldNotReachHere();
          }
  
--- 134,159 ----
          return this;
      }
  
      @Override
      public void generate(NodeLIRBuilderTool gen) {
          boolean nonNull;
!         if (value.stamp() instanceof AbstractObjectStamp) {
!             nonNull = StampTool.isPointerNonNull(value.stamp());
          } else {
              // metaspace pointers are never null
              nonNull = true;
          }
  
+         LIRGeneratorTool tool = gen.getLIRGeneratorTool();
          Value result;
          switch (op) {
              case Compress:
!                 result = tool.emitCompress(gen.operand(value), encoding, nonNull);
                  break;
              case Uncompress:
!                 result = tool.emitUncompress(gen.operand(value), encoding, nonNull);
                  break;
              default:
                  throw GraalError.shouldNotReachHere();
          }