TableGen is not parsing list<Register> Defs properly

[skintigh]

A good example is:

def BL {    // Instruction InstTemplate Encoding InstARM XI 
  ...
  string Namespace = "ARM";
  dag OutOperandList = (outs);
  dag InOperandList = (ins bl_target:$func);
  string AsmString = "bl    $func";
  list<dag> Pattern = [(ARMcall tglobaladdr:$func)];
  list<Register> Uses = [SP];
  list<Register> Defs = [LR];
  list<Predicate> Predicates = [IsARM];
  int Size = 4;

Note that LR is not defined in the outs list, but it is an implicit definition. The backend should indicated the VT of LR (i32 in this case) so it can be properly decoded in the SelectionDAG engine.