return Modified;
}
-// FIXME: Do we need/want a pre-alloc pass like ARM has to try to keep
-// loads and stores near one another?
+// FIXME: Do we need/want a pre-alloc pass like ARM has to try to keep loads and
+// stores near one another? Note: The pre-RA instruction scheduler already has
+// hooks to try and schedule pairable loads/stores together to improve pairing
+// opportunities. Thus, pre-RA pairing pass may not be worth the effort.
// FIXME: When pairing store instructions it's very possible for this pass to
// hoist a store with a KILL marker above another use (without a KILL marker).