This is NFC-intended because SimplifyDemandedVectorElts() does the same transform later. As discussed in D70641, we may want to change that behavior, so we need to isolate where it happens.
This is NFC-intended because SimplifyDemandedVectorElts() does the same transform later. As discussed in D70641, we may want to change that behavior, so we need to isolate where it happens.