llvm-project

998c33e5 - [VPlan] Mark FirstOrderRecurrenceSplice as not having side-effects.

[VPlan] Mark FirstOrderRecurrenceSplice as not having side-effects. Now that FOR exit and resume value creation is explicitly modeled in VPlan (05e1b5340b0caf1, 07b330132c0b) it doesn't depend on the first order recurrence splice being preserved and it can now be marked as not having side-effects. This allows removal of first-order-recurrence-splce if the FOR is only used in the exit or as scalar ph resume value.