}

XlaMergeOp::XlaMergeOp(OpKernelConstruction* ctx) : OpKernel(ctx) {}

void XlaMergeOp::Compute(OpKernelContext* ctx) {
  VLOG(3) << "XlaMergeOp " << def().name();
  int i = 0;
  if (ctx->has_input(i) || ctx->has_input(++i)) {
    ctx->set_output(0, ctx->input(i));
  }
}

REGISTER_KERNEL_BUILDER(Name("XlaLaunch").Device(DEVICE_CPU), XlaLocalLaunchOp);

  auto cast_input = cast_op.getX();
  // Update input type.
  auto transform_result_type =
      RankedTensorType::get(new_shape, getElementTypeOrSelf(cast_input));
  cast_input.setType(transform_result_type);
  auto block_arg = mlir::dyn_cast<mlir::BlockArgument>(cast_input);
  auto cast_op_input = dyn_cast_or_null<TF::CastOp>(cast_input.getDefiningOp());
  while (block_arg || cast_op_input) {

                    }
                }
            });
        }
    }

    private static class HasInputsVisitor implements PropertyVisitor {
        private boolean hasInputs;

        public boolean hasInputs() {
            return hasInputs;
        }

        @Override
        public void visitInputFileProperty(
            String propertyName,
            boolean optional,

// doesn't support non-constant weights.
def ConvertTFDepthwiseConv2DToXLAConvOp : Pat<
  (TF_CastOp:$conv
    (TF_DepthwiseConv2dNativeOp
      (TF_CastOp:$cast_input
        (TF_SubOp (TF_CastOp $input, $truncate1), $input_zp), $truncate2),
      (TF_CastOp
        (TF_CastOp (TF_IdentityOp $filter), $truncate3), $truncate4),
      $strides, $padding, $explicit_padding,

                // Trigger calculating unnamed property names
                inputs.hasInputs

                // Register another unnamed property
                inputs.file("input-2.txt")
                // Trigger calculating unnamed property names again
                inputs.hasInputs

                // Register first unnamed property
                outputs.file("output-1.txt")

        }

        @Override
        public boolean isAchieved() {
            for (ModelNodeInternal child : scopeNode.getLinks()) {
                if (!child.isAtLeast(Discovered) && !hasInputs(new NodeAtState(child.getPath(), Discovered))) {
                    return false;
                }
            }
            return true;
        }

        @Override

t|dir|divmod|enumerate|eval|execfile|file|filter|float|format|frozenset|getattr|globals|hasattr|hash|help|hex|id|input|int|intern|isinstance|issubclass|iter|len|list|locals|long|map|max|memoryview|min|next|object|oct|open|ord|pow|property|range|raw_input|reduce|reload|repr|reversed|round|set|setattr|slice|sorted|staticmethod|str|sum|super|tuple|type|unichr|unicode|vars|xrange|zip)\b/,boolean:/\b(?:True|False|None)\b/,number:/(?:\b(?=\d)|\B(?=\.))(?:0[bo])?(?:(?:\d|0x[\da-f])[\da-f]*\.?\d*|\.\d+)...

	S_IFPSDIR                     = 0x8000000
	S_IFPSSDIR                    = 0xc000000
	S_IFREG                       = 0x8000
	S_IFSOCK                      = 0xc000
	S_IFSYSEA                     = 0x30000000
	S_INPUT                       = 0x1
	S_IREAD                       = 0x100
	S_IRGRP                       = 0x20
	S_IROTH                       = 0x4
	S_IRUSR                       = 0x100
	S_IRWXG                       = 0x38