Change the names of member variables per Chris' instructions, and document
them more clearly.

llvm-svn: 23118
diff --git a/llvm/lib/Target/TargetLowering.cpp b/llvm/lib/Target/TargetLowering.cpp
index d3fa34d..3c2a09c 100644
--- a/llvm/lib/Target/TargetLowering.cpp
+++ b/llvm/lib/Target/TargetLowering.cpp
@@ -27,8 +27,8 @@
   ShiftAmountTy = SetCCResultTy = PointerTy = getValueType(TD.getIntPtrType());
   ShiftAmtHandling = Undefined;
   memset(RegClassForVT, 0,MVT::LAST_VALUETYPE*sizeof(TargetRegisterClass*));
-  maxStoresPerMemSet = maxStoresPerMemCpy = maxStoresPerMemMove = 0;
-  allowUnalignedStores = false;
+  maxStoresPerMemSet = maxStoresPerMemCpy = maxStoresPerMemMove = 8;
+  allowUnalignedMemoryAccesses = false;
 }
 
 TargetLowering::~TargetLowering() {}