Noah Goldstein d81db0e5f5 [KnownBits] Implement knownbits lshr/ashr with exact flag ...

The exact flag basically allows us to set an upper bound on shift
amount when we have a known 1 in `LHS`.

Typically we deduce exact using knownbits (on non-exact incoming
shifts), so this is particularly impactful, but may be useful in some
circumstances.

Closes #84254

2024-03-11 15:51:07 -05:00

493 B

Raw Blame History

View Raw