Displaying 1 result from an estimated 1 matches for "dagupdatelistener".
2017 Feb 14
2
Adding FP environment register modeling for constrained FP nodes
...w what I’m doing with finding the nodes that need to be updated. In the simplest case the FP node gets updated directly into a single machine opcode node, but I don’t think that always happens and I’m not sure I can even count on the original node not being deleted. I’ve experimented with using a DAGUpdateListener, but I’m not sure that does everything I need it to. Am I overthinking this?
I think you're on the right track. DAGUpdateListener seems like the right approach. ISel already uses these for other purposes, and this will allow to do track what has happened to the node being instruction-selected...