Convert SelectionDAG::ComputeMaskedBits to use APInt instead of uint64_t.
Add an overload that supports the uint64_t interface for use by clients
that haven't been updated yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47039 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/lib/CodeGen/SelectionDAG/TargetLowering.cpp
index c3e3dae..c84b697 100644
--- a/lib/CodeGen/SelectionDAG/TargetLowering.cpp
+++ b/lib/CodeGen/SelectionDAG/TargetLowering.cpp
@@ -1008,9 +1008,9 @@
 /// in Mask are known to be either zero or one and return them in the 
 /// KnownZero/KnownOne bitsets.
 void TargetLowering::computeMaskedBitsForTargetNode(const SDOperand Op, 
-                                                    uint64_t Mask,
-                                                    uint64_t &KnownZero, 
-                                                    uint64_t &KnownOne,
+                                                    APInt Mask,
+                                                    APInt &KnownZero, 
+                                                    APInt &KnownOne,
                                                     const SelectionDAG &DAG,
                                                     unsigned Depth) const {
   assert((Op.getOpcode() >= ISD::BUILTIN_OP_END ||