No need to make the subtarget feature bit enum a uint64_t. This was a leftover from when the feature bit enum contained masks instead of bit indices.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@260808 91177308-0d34-0410-b5e6-96231b3b80d8

utils/TableGen/SubtargetEmitter.cpp

@@ -127,7 +127,7 @@ void SubtargetEmitter::Enumeration(raw_ostream &OS,
   OS << "namespace " << Target << " {\n";
 
   // Open enumeration. Use a 64-bit underlying type.
-  OS << "enum : uint64_t {\n";
+  OS << "enum {\n";
 
   // For each record
   for (unsigned i = 0; i < N;) {