tree 34d28bf8662f5c71871e6f924b2945567d82103e
parent 2781f30eac8647552638246c28ab07dd0fc2c560
author Dan Gohman <gohman@apple.com> 1245454144 +0000
committer Dan Gohman <gohman@apple.com> 1245454144 +0000

Make GetMinTrailingZeros a member function of ScalarEvolution,
so that it can access the TargetData member (when available) and
use ValueTracking.h information to compute information for
SCEVUnknown Values.

Also add GetMinLeadingZeros and GetMinSignBits functions,
with minimal implementations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73794 91177308-0d34-0410-b5e6-96231b3b80d8