code: public void ifCmp(final Type type, final int mode, final Label label) {
          switch (type.getSort()) {
          case Type.LONG:
              mv.visitInsn(Opcodes.LCMP);
              break;
          case Type.DOUBLE:
              mv.visitInsn(mode == GE || mode == GT ? Opcodes.DCMPL
                      : Opcodes.DCMPG);
              break;
          case Type.FLOAT:
              mv.visitInsn(mode == GE || mode == GT ? Opcodes.FCMPL
                      : Opcodes.FCMPG);
              break;
          case Type.ARRAY:
          case Type.OBJECT:
              switch (mode) {
              case EQ:
                  mv.visitJumpInsn(Opcodes.IF_ACMPEQ, label);
                  return;
              case NE:
                  mv.visitJumpInsn(Opcodes.IF_ACMPNE, label);
                  return;
              }
              throw new IllegalArgumentException("Bad comparison for type "
                      + type);
          default:
              int intOp = -1;
              switch (mode) {
              case EQ:
                  intOp = Opcodes.IF_ICMPEQ;
                  break;
              case NE:
                  intOp = Opcodes.IF_ICMPNE;
                  break;
              case GE:
                  intOp = Opcodes.IF_ICMPGE;
                  break;
              case LT:
                  intOp = Opcodes.IF_ICMPLT;
                  break;
              case LE:
                  intOp = Opcodes.IF_ICMPLE;
                  break;
              case GT:
                  intOp = Opcodes.IF_ICMPGT;
                  break;
              }
              mv.visitJumpInsn(intOp, label);
              return;
          }
          mv.visitJumpInsn(mode, label);
      }
docs: Generates the instructions to jump to a label based on the comparison of
  the top two stack values.
  
  @param type
  the type of the top two stack values.
  @param mode
  how these values must be compared. One of EQ, NE, LT, GE, GT,
  LE.
  @param label
  where to jump if the comparison result is <tt>true</tt>.