[Alignment][NFC] Finish transition for Loads

Summary:
This is patch is part of a series to introduce an Alignment type.
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html
See this patch for the introduction of the type: https://reviews.llvm.org/D64790

Reviewers: courbet

Subscribers: hiraditya, asbirlea, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D69253

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375419 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/MachineOperand.cpp

@@ -979,7 +979,8 @@ bool MachinePointerInfo::isDereferenceable(unsigned Size, LLVMContext &C,
     return false;
 
   return isDereferenceableAndAlignedPointer(
-      BasePtr, 1, APInt(DL.getPointerSizeInBits(), Offset + Size), DL);
+      BasePtr, Align::None(), APInt(DL.getPointerSizeInBits(), Offset + Size),
+      DL);
 }
 
 /// getConstantPool - Return a MachinePointerInfo record that refers to the