Question about changes to 'SelectionDAGISel.h'

Although I would like to track the LLVM head revisions regularly, unfortunately I only get the opportunity every couple of months or even every 6 month with a full release.

This time I am updating from revision #262824 (8th March) so more than 3 months have elapsed. For the most part I have completed the changes I need to make, but I’m stuck on one change that is more significant than it appears.

In the March #262824 revision ‘SelectionDAGISel’ declared the function ‘Select’ as:

SDNode *Select(SDNode *N) = 0;

But now it is:

void Select(SDNode *N) = 0;

The problem is that we have a number of places where we construct DAGs using the returned ‘SDNode*’ from explicit calls to ‘Select’ and I am wondering what is the best design approach for me to fix this? This is old code, so the architectural changes that lead to the return type for ‘Select’ being changed have probably been long coming, but I was unaware of it. Should I be using ‘SelectCode’ instead for example? Or is there a good reference target I should examine to see how they adapted?