[PATCH] D31081: [ARM] ScheduleDAGRRList::DelayForLiveRegsBottomUp must consider OptionalDefs

[A. Skrobov via Phabricator via llvm-commits]

tyomitch added a comment.

Eli, do you mean that OptionalDefs should never be used because the scheduler (and perhaps other places) ignore them?

ARM instructions (incl. Thumb1 and Thumb2) have always had OptionalDef operands for CPSR.


https://reviews.llvm.org/D31081